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北京市东城区2008―2009学年度高三综合练习(一)

文科综合能力测试题

第Ⅰ卷 (选择题, 共140分)

试题详情

            抚州一中    赣州一中

2009年江西省      吉安一中    九江一中  联 合 考 试

            萍乡一中    新余一中

            宜春中学    上饶县中

高三语文试卷(2009.4)

命题学校:抚州一中                 审题学校:萍乡中学

总分:150分                        时间:150分钟

第I卷(选择题共36分)

试题详情

抚州一中    赣州一中

吉安一中    九江一中

萍乡中学    新余一中

宜春中学    上饶县中

 

高三英语试卷(2009.4)

命题学校:萍乡中学                 审题学校:宜春中学

 

考生注意:

1.本试卷分第一卷和第二卷两部分,共150分。考试时问1 20分钟。

2.答题前,请考生务必将答题纸左侧密封线内的项目填写清楚。请考生按规定用笔将所有试题的答案涂、写在答题纸上,在试题卷上作答无效

第一卷(选择题共115分)

第一部分 听力(共两节,满分30分)

做题时,先将答案标在试卷上。录音内容结束后,你将有两分钟的时间将试卷上的答案转涂到答题卡上。

第一节(共5小题;每小题1.5分,满分7.5分)

请听下面5段对话。每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题。每段对话仅读一遍。

例:How much is the shirt?

A. £19.15              B. £9.15                      C. £9.18

答案是B.

1. What is the probable relationship between the two speakers?

  A. Classmates                    B. Teachers and students                  C. Mother and son

2. What does the man want the woman to do?

  A. Take a picture of the mountains                         B. Take a picture of him

  C. Buy a roll of film

3. Why does the woman refuse the man?

  A. She has lent it to others                                  B. She has not got a dictionary

  C. She will need it this weekend

4. When did the man see Jim?

  A. At 3 o’clock                  B. At 4 o’clock         C. At 5 o’clock

5. Who was at the door?

  A. The speakers’ neighbor                                 B. A delivery boy

  C. The speakers’ neighbor’s daughter

 

第二节(共15小题;每小题1.5分,满分22.5分)

请听下面5段对话或独白。每段对话或独白后有几个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。在听每段对话前,你将有时间阅读各个小题,每小题5秒钟,听完后,每个小题将给出5秒钟的作答时间。每段对话或独白读两遍。

请听第6段材料,回答第6至第8三个小题。

6. Why is the man unhappy?

  A. The composition is too long                   B. He can’t find his pictures taken in Xi’an

  C. He can’t think of a topic for his composition

7. What does the woman suggest to the man?

  A. Write about his trip                                   B. Show her some pictures

  C. Take a course in writing

8. Why does the woman have to leave?

  A. She is not feeling well                              B. She is writing her own composition

  C. She doesn’t want to help

听第7段材料,回答第9至第11三个小题。

9. Whom is the woman buying the gift for?

  A. Her son                           B. Her nephew               C. Her sister

10. How much does the woman want to spend on the gift?

  A. About 20 dollars           B. About 30 dollars         C. About 40 dollars

11. What is the first gift the clerk suggest to the woman?

  A. A chess set                    B. A pencil-box               C. A handball set

听第8段材料,回答第12至第14三个小题。

12. Who made a phone call to Mr. Banks?

  A. Miss Grey                B. Mr. David                           C. Mr. Brown

13. What’s the man’s phone number?

  A. 633201                      B. 322301                          C. 622101

14. Where is the phone number?

  A. On the woman’s desk                                    B. On the man’s desk

  C. On Mr. Brown’s desk

听第9段材料,回答第15至第17三个小题。

15. What colour are the spoonbills’ feathers?

  A. Black                        B. White                                   C. Brown

16. What did the spoonbills die of in Chiku in 2002?

  A. Bad water               B. Bad weather                     C. Man’s killing

17. Who did the hard work to protect the spoonbills?

  A. The local people          B. The volunteers                   C. The scientists

听第10段材料,回答第18至第20三个小题。

18. How long does the English language have a history of?

  A. About 400 years           B. About 1600 years              C. About 2000 years

19. Who first used Old English?

  A. People from England                       B. People from Northwest England

  C. People from Northwest Europe

20. What is the biggest difference between Old English and Modern English?

  A. Endings                           B. Grammar                           C. Spelling

 

第二部分:英语知识运用(共两节,满分45分)

第一节:单项填空(共15小题;每小题1分,满分15分)

从A、B、C、D四个选项中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。

21. _____Premier Wen Jiabao delivered _____ Annual Report at the opening meeting of ____ National People’s Congress on March 5th , 2009.

    A. /; the; the                   B. The; the; the                C. The; /; the                   D. /; /; the

22. ---The final exam is just at hand .Have you got prepared for it ?

       --- Not yet, but_____.

    A. It’s out of the question                      B. that’s right    

C. I have to hit the books tonight                  D. Don’t mention it

23. He enjoys a cup of coffee sometimes, but _____ he drinks tea.

    A. mostly                   B. almost            C. most                            D. nearly

24. Excuse me, I have to _____; I must have eaten too much.

    A. express myself                                B. behave myself

    C. help myself                                      D. relieve myself

25. Near the table _____ a poor dog, who desired to satisfy his hunger with _____ fell down the table.

    A. laid; something          B. lay; what                     C.laid; that        D. lay; that

26. --- My friend looks bow-legged, doesn’t he?

       --- What do you mean _____ that?

       --- When he walks, he _____ looks like he’s riding a horse.

    A. by; kind of           B. with; exactly C. by; much                    D. in; very

27. It _____ great that I have moved back into the fifth position _____ I need to win the

World Championship.

    A. sounds; what             B. proves; where            C. is; which        D. feels; that

28. ______ what would happen, none of them could find a way out.

    A. Having left wondering                  B. Leaving to wonder                       

C. Having left to wonder                  D. Left wondering

29. ---Do you know her, Dad?

       ---I did once.______ has she changed?

    A. What             B. Never             C. How        D. Seldom

30. _____ is expected, according to the online survey, is that prices of the houses will not

go up any more.

    A. As                          B. It                      C. What                            D. Which

31. The price of any product is linked to a complicated system of price _____ everything

depends on everything else.

    A. where                  B. which                    C. that                       D. of which

32. It is clear that the whole world is passing through a social revolution in which a

central _____ must be taken by scientists and technologists.

    A. process                B. attention              C. measure                     D. part

33. --- Will you go to Mary’s wedding next Sunday?

       --- No, I won’t _____ I’m invited to.

    A. if                            B. since                     C. even though              D. although

34. At the evening party, Jenny wore a dress that was more attractive than _____.

    A. other girl’s                                       B. those of the other girls           

    C. the other girls                                  D. that of the other girls

35. I _____ in a chemical works for fourteen years, but now I am a librarian.

    A. have worked             B. had worked         C. have been working        D. worked

第二节:完形填空(共20小题;每小题1.5分,满分30分)

阅读下面短文,掌握其大意,然后从36―55各题所给的四个选项(A、B、C和D)中,选出最佳选项,并在答题卡上将该项涂黑。

 As a teenager, I felt I was always letting people down. I was rebellious on the outside,   36  on the inside I wanted people to  37  me.

Once I left home to hitchhike (搭便车旅行) to California with my friend Penelope. The trip wasn’t  38  , and there were many times I didn’t feel safe. One situation in particular  39  me grateful to still be alive. When I returned home, I was different―not so outwardly sure of myself.

I was happy to be home. But then I noticed that Penelope, who was  40  with us, was wearing my clothes. And my  41  seemed to like her better than me. I wondered if I would be  42  if I weren’t there. I told my mom, and she explained that  43  Penelope was a lovely girl, no one could  44  me. I pointed out. “She is more patient and is neater than I have ever been.” My mom said these were wonderful  45  , but I was the only person who could fill my  46  . She made me realize that even with my  47  and they were many―I was a loved member of the family who couldn’t be replaced.

I became a searcher,  48  who I was and what made me unique. My  49  of myself was changing. I wanted a solid base to start from. I started to resist pressure to  50  in ways that I didn’t like any more, and I  51  who I really was. I came to feel much more  52  that no one can ever take my place.

Each of us  53  a unique place in the world. You are special, no matter what others say or what you may think. So  54  about being replaced. You  55  be.

36. A. and                 B. but                         C. as                               D. for

37. A. leave               B. replace                  C. receive                      D. like

38. A. easy                B. hard                       C. fun                         D. long

39. A. made                     B. kept                       C. left                         D. forced

40. A. playing                  B. eating                           C. staying                      D. traveling

41. A. family                     B. friends                           C. relatives                D. neighbors

42. A. loved               B. mentioned                   C. cared                           D. missed

43. A. since                B. as                               C. while                            D. unless

44. A. scold               B. compare               C. replace                 D. match

45. A. qualities              B. girls                         C. people                         D. times

46. A. character              B. role                         C. task                        D. form

47. A. faults               B. advantages                 C. manners                D. pities

48. A. looking for              B. looking back         C. seeking out                  D. giving up

49. A. picture                   B. view                       C. sense                            D. idea

50. A. think                B. learn                      C. change                        D. act

51. A. hated                     B. celebrated                   C. wished                      D. expected

52. A. sure                  B. doubtful                C. happy                          D. lonely

53. A. takes               B. catches                 C. seizes                            D. holds

54. A. takes               B. forget                            C. care                      D. argue

55. A. mustn’t                   B. shouldn’t               C. can’t                            D. needn’t

第三部分:阅读理解(共20小题;每小题2分,满分40分)

阅读下列短文,从每题所给的四个选项(A、B、C和D)中,选出最佳选项,并在答题卡上将该项涂黑。

A

It has been half a century since NASA, the US space agency, was created at the height of the Cold War. Then it sought to prove its superiority by winning the race to the moon. Now in the 21st century it had a new rival in the space race-China.

NASA remains a leader in space exploration. It hopes its latest Constellation (星座)program will maintain its dominance by putting Americans back on the moon by 2020. NASA intends to use this as a base to travel to Mars and beyond.

This new wave of space exploration envisages(想象) manned colonies of astronauts living and working on the moon. It was drawn up in the wake of the Columbia tragedy in 2003, which killed seven when the shuttle disintegrated upon re- entry.

That tragedy stunned the whole world, with a US official investigation blaming the aging space shuttle. Six months after the Columbia accident, President George W. Bush outlined a new vision for space exploration, paving the way for the Constellation program. The program plans on carrying four astronauts to the moon at a time.

A new spacecraft, Orion, will be used for these missions. It will also fly to the International Space Station (ISS), but will not be operational until 2015.

Once the ISS is complete, the flights of the three aging space shuttles will be stopped. However, this is scheduled for 2010, leaving a five-year gap until Orion’s launch.

During those five years, the US will depend on the Russian Soyuz spacecraft to transport astronauts to the ISS.

Cooperation between Washington and Moscow could be troublesome, especially in the wake of the recent crisis in Georgia.

In comments intended for Congress in March, NASA administrator Michael Griffin, expressed concern at the future.

“A Chinese landing on the moon prior to our own return will create a perception that the US lags behind not only Russia but also China in space,” he wrote in an internal e-mail leaked recently to the media.

To the question of whether China could be a partner with NASA in a future moon mission, Griffin remained optimistic: “Yes, it’s absolutely possible to see China as part of a return to the moon, a joint effort to return to the moon.”

56. The underlined word “stunned” in paragraph 4 can be replaced by “_____”.

  A. stopped                   B. shocked                 C. seized                    D. saved

57. Spaceship Columbia was destroyed _____.

  A. when it returned to earth

  B. because spacemen conducted wrong orders

  C. because it was old and not kept well by the engineers

  D. as it was sent up into space

58. From this passage, it is inferred that _____.

  A. The International space station is under way

  B. Columbia tradedy was blamed on its old space shuttle

  C. There’re no rivals against NASA

  D. Through all the constellation’ program, NASA is only scheduled to use their own space shuttles

59. Which is the best title for this passage?

  A. NASA’s space Exploration is grounded because of Columbia tragedy

  B. China is the biggest rival (对手) to the USA

  C. China, a new rival in space race

  D. NASA’s Constellation’ program to reach beyond the moon

B

Why did humans evolve to walk upright? Perhaps because it’s a just plain easier. Make that “energetically less costly”, in science-speak.

Bipedalism―walking on two feet―is one of the defining characteristics of being human, and scientists have debated for years how it came about. In the latest attempt to find an explanation, researchers trained five chimpanzees (黑猩猩) to walk on a treadmill (跑步机) while wearing masks that allowed measurement of their oxygen consumption. The chimps were measured both while walking upright and while moving on their legs and knuckles (肘). That measurement of the energy needed to move around was compared with similar tests on humans and the results are published in this week’s on-line edition of Proceedings of the National Academy of Sciences.

It turns out that humans walking on two legs use only one-quarter of the energy that chimpanzees use while knuckle-walking on four limbs. And the chimps, on average, use as much energy using two legs as they did when they used all four limbs.

However, there were differences among chimpanzees in how much energy they used, and these differences corresponded to their different gaits (步法) and anatomy (解剖学特征). One of the chimps used less energy on two legs, one used about the same and the others used more, said David Raichlen, assistant professor of anthropology at the University of Arizona.

“What we were surprised at was the variation (变异),” he said in a telephone interview. “That was pretty exciting, because when you talk about how evolution works, variation is the bottom line, without variation there is no evolution.”

“Walking on two legs freed our arms, opening the door to manipulating (主宰) the world,” Raichlen said. “We think about the evolution of bepedalism as one of the first events that led hominids (原始人) down the path to being human.”

The research was supported the National Science Foundation and L. S. B. Leakey Foundation.

60. The underlined word “Bipedalism” means _____.

  A. moving sideways                                 B. walking upright

  C. walking on four legs                            D. running fast

61. We can infer that _____.

  A. scientists have no idea on how human walking on two legs came about

  B. scientists have had different views on why chimpanzees walk on four legs

  C. scientists have had different views on how human walking on two legs came about

  D. scientists have had similar views on how human walking on two legs came about

62. What does the fourth paragraph mainly deal with?

  A. How did chimpanzees save energy              

B. Why didn’t chimpanzees walk on two legs

C. David Raichlen researched into chimpanzees

D. Different chimpanzees consume different energy

63. According to the passage, humans walk upright in order to _____.

  A. conserve energy                                 B. differ from other animals

  C. free their brains                             D. strengthen their legs

C

The people below are at an airport and looking for somewhere to eat. Read the description and help them find a right place.

Ken is in a hurry as he is late for his flight. He needs a quick cold drink.

Jamila is meeting her uncle whose flight arrives at 12:30. She left home early and wants to have a hot meal before he comes, where is able to see the exit door in odrer not to miss him.

Danie’s middy flight has been delayed. The airline has offered to pay for a complete lunch if she sends them her receipt. So she has decided to accept the offer and have a three-course meal.

Jorge and his children want a place where they can serve themselves as they each like different things to eat. They don’t mind whether they have hot or cold food.

Carolyn and her friend had arrived too soon for their morning flight. They got up very early and now they want a hot drink and something sweet to eat with it.

You Guide to Restaurants and Bars

Real Cool

Have you got a sweet tooth? Then this is the place for you. Enjoy one of our special ice-creams served with a chocolate cookie. Lots of different fruit flavors including lemon, banana, strawberry, coconut and orange.

Open 14:00―20:00

Healthworks

This is colorful kiosk serving a wide variety of drinks. Choose your drink from our fresh fruit and we’ll mix it with yogurt or ice-cream if you want. Or just have a glass of pure, iced juice!

Open 06:30―21:00

The Restaurant

The restaurant is the best place to enjoy a full meal. We offer an international menu with plenty of choice. Choose a starter, followed by a main meal, cheese and dessert all for the price of 17.50.

Open 08:00―15:00

Cafe bar

Just the place for the younger members of the family! We serve hot dogs, pizzas and hamburgers all cooked on the spot. Try our hot chocolate drinks or have a cup of fresh coffee while you wait.

Open 11:30―23:00

Seafood & Salad Bar

Recently opened and already a favorite with all our passengers. Help yourself to our delicious cold fish and salads. There’s always something different on the menu. Close to the departure gates to save your time. Our friendly staff will make sure you don’t miss your flight!

Open 10:00―21:00

Sandwich Side

In a hurry? Then enjoy one of our freshly-made sandwiches. Choose from five different kinds of bread and we’ll put whatever you like on top! A complete meal in itself and great value for money!

Opens all day

Cafe Rapid

This cafe is near the Arrival point. It offers quick freshly prepared hot dishes. Ideal for people waiting for family or friends or just those who enjoy watching the world go by.

Open 06:00―22:00

Tea & Coffee House

We serve six different kinds of tea and coffee along with various cakes, biscuits and cookies. You will find us near the entrance to the shopping galleries.

Open 24 hours.

64. It is the best choice for Jamila to go to _____.

A. Real Cool          B. Cafe Rapid           C. Seafood & Salad Bar         D. Sandwich Side

65.Jorge and his children should go to _____.

  A. Healthworks             B. Cafe Bar         C. Seafood & Salad Bar         D. Cafe Rapid

66. Carolyn and her friend are most likely to go to _____.

  A. Real Cool          B. Cafe Bar         C. Tea & Coffee House          D. Cafe Rapid

67. Danie seemed to _____.

  A. have a free lunch if she showed her receipt

  B. have three meals at the airport

  C. pay for her cool drink extra because she missed her midday flight

  D. have a three-course meal but not to accept the offer

D

“It’s my morning at the zoo,”said Maurice, “would you like to come? We’ll have a look at that lion cub and see how he’s getting on in his new surroundings.”

“You mean the one that was brought into the surgery a few weeks ago?”

“Yes.”

I settled myself in the car and, as we drove away, I thought back to a morning when a man had come in with a lion cub pulling on a heavy chain. Smiling proudly at our astonished faces, he said, “Grand little chap, isn’t he? Only twelve weeks old and tough as they come. I got him through an advertisement in the newspaper. My little girl is delighted and simply loves him but he’s a bit rough when he gets excited. He’ll be safer for her to play with when you’ve dealt with him.”

I looked up in surprise and Maurice asked, ‘What do you mean by “dealt with him”?’

“Well, when you’ve filed down his teeth and taken out his claws.”Picking up the cub, the man held him out to Maurice. “The people I bought him from said this was the thing to do.”

“They did, did they?’”Maurice’s face was solemn as he rubbed the little animal under the chin. “And how long will you keep him? Nine months? A year?”

“Oh, when he gets too big for us he’ll have to go into a zoo. But we’ll give him a good time while he’s little and then, of course, he’ll want to be with his own kind. We’ll visit him regularly, though. We’re great animal lovers, you understand.”

Maurice nodded, put the cub on the floor, pulled up a chair for the man and sat down himself. “I think,”he said, “that you have been misled. I wouldn’t dream of hurting a wild animal like that and I don’t know any other vet who would do it either. You say you will give him to a zoo when he get too big but with no claws he couldn’t be put in with other lions--he’d have no means of self-defence and he’d be killed. So he would have to be kept on his own. So he wouldn’t have much of a life, would he? In fact, it would be very difficult to find a zoo--a good one anyway--that would take him.”

The man shook his head. “I never thought of it like that.” He paused, then, bending down, he pushed the cub away from his chair.

There was a tiny roar, the cub’s lips curled back and he stared up with angry eyes. His owner lifted him and held him tightly in his arms. Then he said helplessly, ‘But what on earth am I to do with him? What do you advise?’

“He obviously can’t play with your little daughter,”said Maurice. “He’s quite fierce already. And it won’t be easy to get a zoo to take him. Most of them have enough cubs as it is. They’re almost two a penny, but, if you like…”

“Two a penny? Good God! I paid a hundred pounds for him!”

There was a long silence. “So I’ve been “done”, have I?” The man stared down at his cub.

Maurice nodded. “I’m afraid so. Unfortunately there are lots of dishonest people about who are profiting from this fashion for exotic pets.”

The man frowned. “Exotic pets? Well, yes, I suppose you’re right. It’s rather nice to cause a bit of a sensation with something out of the ordinary.”

“If you like,” said Maurice slowly, “I’ll ask the manager of our local zoo if he can fit this little one in with some cubs who are being raised on the bottle. They’re roughly the same age and he would probably be accepted.”

And so it turned out.

68. Why did Maurice go to the zoo?

  A. to see the lion cub                              B. he wanted to take his friend

  C. to see the new surroundings                     D. he had work to do there

69. Why did Maurice refuse to take out the cub’s claws?

  A. The man wanted to give it to a zoo

  B. It could not protect itself against other lions

  C. He didn’t know how to do it

  D. It was too small to have its claws removed

70. Why did Maurice think it would be hard to find a zoo that would take the cub?

  A. The cub was too aggressive                      B. Most zoos are overcrowded

  C. Most zoos don’t need more lion cubs             D. The cub was not worth very much

71. The man was shocked and said “Good God!” because_____.

  A. he had thought he would easily be able to find a zoo

  B. Maurice had discovered his real reasons for buying the lion

  C. he realised he had been tricked into paying too much for the lion

  D. Maurice had explained that his daughter wouldn’t be able to play with the lion

E

One of India’s top engineering schools has restricted Internet access in its boarding houses,

saying addiction to surfing, gaming and blogging was affecting students’performance, making

them lonely and even suicidal.

Authorities at the best Indian Institute of Technology(IIT)in Mumbai said students had stopped socializing and many were late for morning classes or slept through them.”Now,a student doesn’t even know who lives two doors away from him because he is so busy on the Internet,”said Prakash Gopalan,dean of Student Affairs.”The old dormitory culture of companionship and socializing among students is gone .This is not healthy in our opinion.”

IIT--Mumbai,with about 5,000 students, is one of seven IITs across India which are considered to be among the finest engineering schools in the world. They are also a talent pool for global technology giants.But their hard courses , tough competition and lonely campus lifestyle have taken an effect on students.Depressive and dysfunctional(不正常的) lifestyles are known to be commom among IIT students,and at least nine have committed suicide in the past five years .Students have unlimited free Internet access in their boarding houses to help them in their studies, but many also use it to surf, chat, download movies and music, blog and for gaming.

“Starting Monday,Interent access will be banned between 11 p.m. and 12:30 p.m. at IIT-Mumbai’s 13 boarding buildings to encourage students to sleep early and to try and force them out of their shells,” Gopalan said. But the move has not gone down well with students who say they hate their lives being regulated. “Now they will say we need to listen to a lullaby (摇篮曲) to go to sleep ,”said Rajiv, an electronics student.

72.which of the following is not the possible effect of free Internet access on students ?

A.There has been a decline in students’lessons.

B.Participation in social activities has gone down.

C.Some students feel lonely and even suicidal.

D.Students don’t even know his classmates.

73.What measures have been taken in IIT ?Mumbai?

A.Students have unlimited free Internet access in their dorm otproes.S

B.Students are forbidden to surf the Internet

C.Internet access is unavailable in deep night .

D.Students must go to bed before 11 pm.

74.In the passage the students are told to______.

A.sleep through their lessons                  B.break away from the Internet

C.go to sleep along with music                    D.stop surfing and make friends

75.We may infer from the last paragraph that ______.

A.the banning order causes some complaints among the students

B.all electronics students hate the banning order

C.more students prefer listening to music to surfing the Internet

D.there is no Internet access on the IIT campus even since.

 

第二卷(非选择题共35分)

第四部分:写作(共两节,满分35分)

第一节    对话填空(共10小题,每小题1分,满分10分)

      请认真阅读下列对话,并根据各题所给的首字母的提示,在答题卡右栏中标有题目的横线上,写出一个英语单词的完整、正确的形式,使对话通顺。

H: Harry   L: Lisa

(Harry met Lisa for the first time at their friend, Jean’s birthday party. Harry is a diplomat.)

L: Have you been to Arab countries?

H: Well, yes, I have been to different countries (76)q______ a lot.

L: And what have you noticed there in (77)p______?

H: You must never embarrass the other person or put him in a situation which (78)m______ him lose honor. They must respect and trust you before they will do business with you.

L: Where do you travel to in (79)E______?

H: I go to the UK a lot, and to France, Germany and Spain. In the UK you shouldn’t (80)e______ people to shake hands with you when they see you regularly. But in France in the (81)s______ situation, you must shake hands.

L: Do you work much with North Americans?

H: Well, I occasionally go to the States. It’s (82)s______that the first time you go there your host may use your first name right from the start. You should use his or her first name in (83)r______.

L: What differences do you see (84)b______ the States and Europe?

H: In the States people can ask personal questions about your family, for example, even if they don’t particularly know you. You shouldn’t do that in Europe in particular. Well, Lisa, Jean told me you’ve been to China, did you have any sort of culture shock after  you first came to China?

L: Yes, actually, although at the beginning. I was (85)d______ with the bicycles and the bustle(喧闹), the long history and the wonderful tradition.

 

 

 

 

76.___________

77.___________

 

78.___________

 

79.___________

 

80.___________

81.___________

 

 

82.___________

 

83.___________

84.___________

 

 

 

 

85.___________

 

 

第二节    书面表达(满分25分)

北师大教授顾明远对“三好学生”评比叫停,引起了很大反响。请根据下表给 “Teens”写一篇120字左右的文章并表明你对三好学生评比的看法。标题和首句已给出。

反对叫停

支持叫停

1.青少年需要榜样

2.学生应以学习为主,成绩第一

1.有碍学生个性发展

2.与提倡创新精神相背

参考单词:merit students

Should the System be changed?

In response to the proposal of cancelling the merit students selection,

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

八校联考英语答案

听力材料:

(Text 1)

W: I heard you got full marks in math exam. Congrtatulations!

M: Thanks! I’m sure you also did a good job indeed.

 

(Text 2)

M: The view is fantastic! Can you take a picture of me with the mountains in the background?

W: I’m afraid I just ran out of film.

 

(Text 3)

M: Do you think I could borrow your dictionary this weekend?

W: Sorry, normally I’d say yes, but I’m going to use it myself.

 

(Text 4)

M: Two hours ago, I saw Jim in his office. Is he home yet?

W: No, he said he would be back at 4, but it’s already 5 o’clock.

 

(Text 5)

W: I thought I heard someone at the door.

M: Just the delivery boy with a parcel from our neighbor. She and her husband are visiting their daughter in Canada, so I’ll keep it until they get back.

 

(Text 6)

W: You don’t look happy. What seems to be the problem?

M: I’ve got to write a long composition for my English class and I just can’t come up with any idea, and it’s due tomorrow.

W: That shouldn’t be too difficult. Remember those pictures you were showing me last week?

M: Sure.

W: Why don’t you write about your impression of the Great Wall of China?

M: That sounds like a good idea. I can also write about our visit to Xi’an.

W: Well, now that you’re feeling better about this, I think I’ll be on my way. I’ve got to finish my composition, too.

 

(Text 7)

M: May I help you?

W: Yes, my nephew is graduating from college next week and I’d like to get him a nice gift.

M: What price range are you interested in? we’ll need to know that before we begin looking.

W: Well, I usually spend about twenty dollars for a gift. Do you have anything nice for that price?

M: How about a pencil-box?

W: No, my sister gave him that for his birthday last year.

M: Well, then, would he enjoy a chess set?

W: No, he doesn’t go in much for chess but he is quite athletic.

M: Then you can give him a hand ball set.

W: That’s a good idea. I’ll take it.

 

(Text 8)

M: Any messages, Miss Grey?

W: Just one, Mr. Banks. You had a telephone call from someone called Brown…David Brown.

M: Brown? I don’t know anyone called Brown. What did he want?

W: He didn’t say. But it sounded important. I told him you’d phone him as soon as you got back.

M: Well, I’d better do it then, I suppose. Er…you’ve got his telephone number, haven’t you?

W: Yes, it’s 633201

M: 622301.

W: No, 633201

M: Oh, you’d better write it down, Miss Grey. I’ll probably forget it.

W: I’ve already done it, Mr. Banks. It’s on your desk.

(Text 9)

W: Did you read the article about the spoonbills in the newspaper?

M: Yes. The picture was interesting as well.

W: I know. They looked splendid in their white feathers.

M: Our teacher showed us a VCD about them. They use the “spoon” on the end of their bills to search for food.

W: I heard that in 2002 seventy-three spoonbills died because of bad water in Chiku! The poor birds are really at our mercy!

M: I agree! But 223 spoonbills returned to Chiku last October. That’s 45 more than the year before!

W: That’s because the water around Chiku is clean now.

M: Thanks to all the hard work of our bird scientists, the spoonbills have a healthy place to spend the winter.

 

(Text 10)

W: The story of the English language is a story of change. The old English language is different from Modern English. If We do not study Old English, we cannot understand it. Some of the words are the same, but many are not used now. the story of English language began some time after the year 400 A. D. At that time people came to England from Northwest Europe. There are many groups of people. They were called Angles, Saxons and Jutes. Their language, old English, is like some of the Modern language of Northwest Europe. In old English the endings had many meanings. They showed past time and present time and many other things.

In Modern English most of these endings are gone. This is the biggest difference between Old English and Modern English.

 

 

 

 

听力:1―5:A B C A B           6―10:C A B B A

      11―15:B C A B B        16―20:A C B C A

单项选择:21―25:A C A D B              26―30:A D D C C          31―35:A D C B D

完形填空:36―40:B D A C C              41―45:A D C C A         

46―50:B A C B D        51―55:B A D B C

阅读理解:56―60:B D A D B        61―65:C D A B C

          66―70:C A D B C              71―75:C D C D A

对话填空:76: quite          77: particular            78: makes           79: Europe

          80: expect             81: same                    82: surprising              83: return

          84: between          85: delighted

书面表达:

Should the system be changed?

In response to the proposal of cancelling the merit students selection, people’s opinions differ.

Some people think that with the increasingly fierce competition, more and more talented youths are needed. Only one single standard for judging good students may discourage the students from growing in different ways. It is also against the advocation of pioneering spirit. Others, however, say adolencents can’t grow up without models, and merit students represent diligence and adolescents excellence. To the students academic excellence comes first.

In my view, times are different and the criteria should be changed to a degree because the job market demands large numbers of personnel with practical ability and skills. As a standard, it will encourage students to explore their potentials and develep their ability to think and solve problems independently, which is the basis of education.

 

 

 

 

 

试题详情

抚州一中    赣州一中

吉安一中    九江一中

萍乡中学    新余一中

宜春中学    上饶县中

高三理综试卷(2009.4)

命题学校:宜春中学     审题学校:新余一中

 

可能用到的相对原子质量:O―16,H―1,Cu―64,S―32,C―12,Br―80

第Ⅰ卷(选择题  共126分)

试题详情

抚州一中    赣州一中

2009年江西省 吉安一中    九江一中     联 合 考 试

萍乡一中    新余一中

宜春中学    上饶县中

 

高三文综试卷(2009.4)

命题学校:赣州一中   吉安一中     审题学校:吉安一中   赣州一中

本试卷分第Ⅰ卷(选择题)和第Ⅱ卷(非选择题)两部分。全卷共300分,考试用时150分。

第Ⅰ卷(选择题  共140分)

试题详情

抚州一中    赣州一中

吉安一中    九江一中

萍乡中学    新余一中

宜春中学    上饶县中

 

高三数学试卷(理)(2009.4)

命题学校:九江一中 邵学兵 邵继享          审题学校:邹小浩 许忠华

 

试题详情

 

抚州一中    赣州一中

吉安一中    九江一中

萍乡中学    新余一中

宜春中学    上饶县中

 

高三数学试卷(文)(2009.4)

命题学校:九江一中 邵学兵 邵继享          审题学校:邹小浩 许忠华

本试卷分第I卷(选择题)和第II卷(非选择题)两部分.第I卷1至2页,第II卷3至4页,共150分.

第Ⅰ卷(选择题,共60分)

考生注意:

       1.答题前,考生务必将自己的准考证号、姓名填写在答题卡上.

       2.第I卷每小题选出答案后,用2B铅笔把答题卡上对应题目的答案标号涂黑,如需改动,用橡皮擦干净后,再选涂其他答案标号.第II卷用黑色墨水签字笔在答题卡上书写作答.若在试题卷上作答,答案无效.

       3.考试结束,监考员答题卡收回.

参考公式:

       如果事件互斥,那么                                    球的表面积公式

                                                  

       如果事件相互独立,那么                             其中表示球的半径

                                               球的体积公式

       如果事件在一次试验中发生的概率是,那么         

       次独立重复试验中恰好发生次的概率               其中表示球的半径

                  

试题详情

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

试题详情

高中化学所有知识点整理

 

  1高中化学所有知识点整理

 

  一.中学化学实验操作中的七原则

 

  掌握下列七个有关操作顺序的原则,就可以正确解答"实验程序判断题"。

 

  1."从下往上"原则。以Cl2实验室制法为例,装配发生装置顺序是:放好铁架台→摆好酒精灯→根据酒精灯位置固定好铁圈→石棉网→固定好圆底烧瓶。

 

  2."从左到右"原则。装配复杂装置应遵循从左到右顺序。如上装置装配顺序为:发生装置→集气瓶→烧杯。

 

  3.先"塞"后"定"原则。带导管的塞子在烧瓶固定前塞好,以免烧瓶固定后因不宜用力而塞不紧或因用力过猛而损坏仪器。

 

  4."固体先放"原则。上例中,烧瓶内试剂MnO2应在烧瓶固定前装入,以免固体放入时损坏烧瓶。总之固体试剂应在固定前加入相应容器中。

 

  5."液体后加"原则。液体药品在烧瓶固定后加入。如上例中浓盐酸应在烧瓶固定后在分液漏斗中缓慢加入。

 

  6.先验气密性(装入药口前进行)原则。

 

  7.后点酒精灯(所有装置装完后再点酒精灯)原则。

 

  二.中学化学实验中温度计的使用分哪三种情况以及哪些实验需要温度计

 

  1.测反应混合物的温度:这种类型的实验需要测出反应混合物的准确温度,因此,应将温度计插入混合物中间。

 

  ①测物质溶解度。②实验室制乙烯。

 

  2.测蒸气的温度:这种类型的实验,多用于测量物质的沸点,由于液体在沸腾时,液体和蒸气的温度相同,所以只要测蒸气的温度。①实验室蒸馏石油。②测定乙醇的沸点。

 

  3.测水浴温度:这种类型的实验,往往只要使反应物的温度保持相对稳定,所以利用水浴加热,温度计则插入水浴中。①温度对反应速率影响的反应。②苯的硝化反应。

 

  三.常见的需要塞入棉花的实验有哪些

 

  需要塞入少量棉花的实验:

 

  热KMnO4制氧气

 

  制乙炔和收集NH3

 

  其作用分别是:防止KMnO4粉末进入导管;防止实验中产生的泡沫涌入导管;防止氨气与空气对流,以缩短收集NH3的时间。

 

  四.常见物质分离提纯的10种方法

 

  1.结晶和重结晶:利用物质在溶液中溶解度随温度变化较大,如NaCl,KNO3。

 

  2.蒸馏冷却法:在沸点上差值大。乙醇中(水):加入新制的CaO吸收大部分水再蒸馏。

 

  3.过滤法:溶与不溶。

 

  4.升华法:SiO2(I2)。

 

  5.萃取法:如用CCl4来萃取I2水中的I2。

 

  6.溶解法:Fe粉(A1粉):溶解在过量的NaOH溶液里过滤分离。

 

  7.增加法:把杂质转化成所需要的物质:CO2(CO):通过热的CuO;CO2(SO2):通过NaHCO3溶液。

 

  8.吸收法:用做除去混合气体中的气体杂质,气体杂质必须被药品吸收:N2(O2):将混合气体通过铜网吸收O2。

 

  9.转化法:两种物质难以直接分离,加药品变得容易分离,然后再还原回去:Al(OH)3,Fe(OH)3:先加NaOH溶液把Al(OH)3溶解,过滤,除去Fe(OH)3,再加酸让NaAlO2转化成A1(OH)3。

 

  10.纸上层析(不作要求)

 

  五.常用的去除杂质的方法10种

 

  1.杂质转化法:欲除去苯中的苯酚,可加入氢氧化钠,使苯酚转化为酚钠,利用酚钠易溶于水,使之与苯分开。欲除去Na2CO3中的NaHCO3可用加热的方法。

 

  2.吸收洗涤法:欲除去二氧化碳中混有的少量氯化氢和水,可使混合气体先通过饱和碳酸氢钠的溶液后,再通过浓硫酸。

 

  3.沉淀过滤法:欲除去硫酸亚铁溶液中混有的少量硫酸铜,加入过量铁粉,待充分反应后,过滤除去不溶物,达到目的。

 

  4.加热升华法:欲除去碘中的沙子,可采用此法。

 

  5.溶剂萃取法:欲除去水中含有的少量溴,可采用此法。

 

  6.溶液结晶法(结晶和重结晶):欲除去硝酸钠溶液中少量的氯化钠,可利用二者的溶解度不同,降低溶液温度,使硝酸钠结晶析出,得到硝酸钠纯晶。

 

  7.分馏蒸馏法:欲除去乙醚中少量的酒精,可采用多次蒸馏的方法。

 

  8.分液法:欲将密度不同且又互不相溶的液体混合物分离,可采用此法,如将苯和水分离。

 

  9.渗析法:欲除去胶体中的离子,可采用此法。如除去氢氧化铁胶体中的氯离子。

 

  10.综合法:欲除去某物质中的杂质,可采用以上各种方法或多种方法综合运用。

 

  六.化学实验基本操作中的"不"15例

 

  1.实验室里的药品,不能用手接触;不要鼻子凑到容器口去闻气体的气味,更不能尝结晶的味道。

 

  2.做完实验,用剩的药品不得抛弃,也不要放回原瓶(活泼金属钠、钾等例外)。

 

  3.取用液体药品时,把瓶塞打开不要正放在桌面上;瓶上的标签应向着手心,不应向下;放回原处时标签不应向里。

 

  4.如果皮肤上不慎洒上浓H2SO4,不得先用水洗,应根据情况迅速用布擦去,再用水冲洗;若眼睛里溅进了酸或碱,切不可用手揉眼,应及时想办法处理。

 

  5.称量药品时,不能把称量物直接放在托盘上;也不能把称量物放在右盘上;加法码时不要用手去拿。

 

  6.用滴管添加液体时,不要把滴管伸入量筒(试管)或接触筒壁(试管壁)。

 

  7.向酒精灯里添加酒精时,不得超过酒精灯容积的2/3,也不得少于容积的1/3。

 

  8.不得用燃着的酒精灯去对点另一只酒精灯;熄灭时不得用嘴去吹。

 

  9.给物质加热时不得用酒精灯的内焰和焰心。

 

  10.给试管加热时,不要把拇指按在短柄上;切不可使试管口对着自己或旁人;液体的体积一般不要超过试管容积的1/3。

 

  11.给烧瓶加热时不要忘了垫上石棉网。

 

  12.用坩埚或蒸发皿加热完后,不要直接用手拿回,应用坩埚钳夹取。

 

  13.使用玻璃容器加热时,不要使玻璃容器的底部跟灯芯接触,以免容器破裂。烧得很热的玻璃容器,不要用冷水冲洗或放在桌面上,以免破裂。

 

  14.过滤液体时,漏斗里的液体的液面不要高于滤纸的边缘,以免杂质进入滤液。

 

  15.在烧瓶口塞橡皮塞时,切不可把烧瓶放在桌上再使劲塞进塞子,以免压破烧瓶。

 

  七.化学实验中的先与后22例

 

  1.加热试管时,应先均匀加热后局部加热。

 

  2.用排水法收集气体时,先拿出导管后撤酒精灯。

 

  3.制取气体时,先检验气密性后装药品。

 

  4.收集气体时,先排净装置中的空气后再收集。

 

  5.稀释浓硫酸时,烧杯中先装一定量蒸馏水后再沿器壁缓慢注入浓硫酸。

 

  6.点燃H2、CH4、C2H4、C2H2等可燃气体时,先检验纯度再点燃。

 

  7.检验卤化烃分子的卤元素时,在水解后的溶液中先加稀HNO3再加AgNO3溶液。

 

  8.检验NH3(用红色石蕊试纸)、Cl2(用淀粉KI试纸)、H2S[用Pb(Ac)2试纸]等气体时,先用蒸馏水润湿试纸后再与气体接触。

 

  9.做固体药品之间的反应实验时,先单独研碎后再混合。

 

  10.配制FeCl3,SnCl2等易水解的盐溶液时,先溶于少量浓盐酸中,再稀释。

 

  11.中和滴定实验时,用蒸馏水洗过的滴定管先用标准液润洗后再装标准掖;先用待测液润洗后再移取液体;滴定管读数时先等一二分钟后再读数;观察锥形瓶中溶液颜色的改变时,先等半分钟颜色不变后即为滴定终点。

 

  12.焰色反应实验时,每做一次,铂丝应先沾上稀盐酸放在火焰上灼烧到无色时,再做下一次实验。

 

  13.用H2还原CuO时,先通H2流,后加热CuO,反应完毕后先撤酒精灯,冷却后再停止通H2。

 

  14.配制物质的量浓度溶液时,先用烧杯加蒸馏水至容量瓶刻度线1cm2cm后,再改用胶头滴管加水至刻度线。

 

  15.安装发生装置时,遵循的原则是:自下而上,先左后右或先下后上,先左后右。

 

  16.浓H2SO4不慎洒到皮肤上,先迅速用布擦干,再用水冲洗,最后再涂上3%一5%的NaHCO3溶液。沾上其他酸时,先水洗,后涂NaHCO3溶液。

 

  17.碱液沾到皮肤上,先水洗后涂硼酸溶液。

 

  18.酸(或碱)流到桌子上,先加NaHCO3溶液(或醋酸)中和,再水洗,最后用布擦。

 

  19.检验蔗糖、淀粉、纤维素是否水解时,先在水解后的溶液中加NaOH溶液中和H2SO4,再加银氨溶液或Cu(OH)2悬浊液。

 

  20.用pH试纸时,先用玻璃棒沾取待测溶液涂到试纸上,再把试纸显示的颜色跟标准比色卡对比,定出pH。

 

  21.配制和保存Fe2+,Sn2+等易水解、易被空气氧化的盐溶液时;先把蒸馏水煮沸赶走O2,再溶解,并加入少量的相应金属粉末和相应酸。

 

  22.称量药品时,先在盘上各放二张大小,重量相等的纸(腐蚀药品放在烧杯等玻璃器皿),再放药品。加热后的药品,先冷却,后称量。

 

  八.实验中导管和漏斗的位置的放置方法

 

  在许多化学实验中都要用到导管和漏斗,因此,它们在实验装置中的位置正确与否均直接影响到实验的效果,而且在不同的实验中具体要求也不尽相同。下面拟结合实验和化学课本中的实验图,作一简要的分析和归纳。

 

  1.气体发生装置中的导管;在容器内的部分都只能露出橡皮塞少许或与其平行,不然将不利于排气。

 

  2.用排空气法(包括向上和向下)收集气体时,导管都必领伸到集气瓶或试管的底部附近。这样利于排尽集气瓶或试管内的空气,而收集到较纯净的气体。

 

  3.用排水法收集气体时,导管只需要伸到集气瓶或试管的口部。原因是"导管伸入集气瓶和试管的多少都不影响气体的收集",但两者比较,前者操作方便。

 

  4.进行气体与溶液反应的实验时,导管应伸到所盛溶液容器的中下部。这样利于两者接触,充分发生反应。

 

  5.点燃H2、CH4等并证明有水生成时,不仅要用大而冷的烧杯,而且导管以伸入烧杯的1/3为宜。若导管伸入烧杯过多,产生的雾滴则会很快气化,结果观察不到水滴。

 

  6.进行一种气体在另一种气体中燃烧的实验时,被点燃的气体的导管应放在盛有另一种气体的集气瓶的中央。不然,若与瓶壁相碰或离得太近,燃烧产生的高温会使集气瓶炸裂。

 

  7.用加热方法制得的物质蒸气,在试管中冷凝并收集时,导管口都必须与试管中液体的液面始终保持一定的距离,以防止液体经导管倒吸到反应器中。

 

  8.若需将HCl、NH3等易溶于水的气体直接通入水中溶解,都必须在导管上倒接一漏斗并使漏斗边沿稍许浸入水面,以避免水被吸入反应器而导致实验失败。

 

  9.洗气瓶中供进气的导管务必插到所盛溶液的中下部,以利杂质气体与溶液充分反应而除尽。供出气的导管则又务必与塞子齐平或稍长一点,以利排气。

 

  11.制H2、CO2、H2S和C2H2等气体时,为方便添加酸液或水,可在容器的塞子上装一长颈漏斗,且务必使漏斗颈插到液面以下,以免漏气。

 

  12.制Cl2、HCl、C2H4气体时,为方便添加酸液,也可以在反应器的塞子上装一漏斗。但由于这些反应都需要加热,所以漏斗颈都必须置于反应液之上,因而都选用分液漏斗。

 

  九.特殊试剂的存放和取用10例

 

  1.Na、K:隔绝空气;防氧化,保存在煤油中(或液态烷烃中),(Li用石蜡密封保存)。用镊子取,玻片上切,滤纸吸煤油,剩余部分随即放人煤油中。

 

  2.白磷:保存在水中,防氧化,放冷暗处。镊子取,并立即放入水中用长柄小刀切取,滤纸吸干水分。

 

  3.液Br2:有毒易挥发,盛于磨口的细口瓶中,并用水封。瓶盖严密。

 

  4.I2:易升华,且具有强烈刺激性气味,应保存在用蜡封好的瓶中,放置低温处。

 

  5.浓HNO3,AgNO3:见光易分解,应保存在棕色瓶中,放在低温避光处。

 

  6.固体烧碱:易潮解,应用易于密封的干燥大口瓶保存。瓶口用橡胶塞塞严或用塑料盖盖紧。

 

  7.NH3oH2O:易挥发,应密封放低温处。

 

  8.C6H6、、C6H5-CH3、CH3CH2OH、CH3CH2OCH2CH3:易挥发、易燃,应密封存放低温处,并远离火源。

 

  9.Fe2+盐溶液、H2SO3及其盐溶液、氢硫酸及其盐溶液:因易被空气氧化,不宜长期放置,应现用现配。

 

  10.卤水、石灰水、银氨溶液、Cu(OH)2悬浊液等,都要随配随用,不能长时间放置。

 

  十.中学化学中与"0"有关的实验问题4例

 

  1.滴定管最上面的刻度是0。

 

  2.量筒最下面的刻度是0。

 

  3.温度计中间刻度是0。

 

  4.托盘天平的标尺中央数值是0。

 

  十一.能够做喷泉实验的气体

 

  NH3、HCl、HBr、HI等极易溶于水的气体均可做喷泉实验。其它气体若能极易溶于某液体中时(如CO2易溶于烧碱溶液中),亦可做喷泉实验。

 

  十二.主要实验操作和实验现象的具体实验80例

 

  1.镁条在空气中燃烧:发出耀眼强光,放出大量的热,生成白烟同时生成一种白色物质。

 

  2.木炭在氧气中燃烧:发出白光,放出热量。

 

  3.硫在氧气中燃烧:发出明亮的蓝紫色火焰,放出热量,生成一种有刺激性气味的气体。

 

  4.铁丝在氧气中燃烧:剧烈燃烧,火星四射,放出热量,生成黑色固体物质。

 

  5.加热试管中碳酸氢铵:有刺激性气味气体生成,试管上有液滴生成。

 

  6.氢气在空气中燃烧:火焰呈现淡蓝色。

 

  7.氢气在氯气中燃烧:发出苍白色火焰,产生大量的热。

 

  8.在试管中用氢气还原氧化铜:黑色氧化铜变为红色物质,试管口有液滴生成。

 

  9.用木炭粉还原氧化铜粉末,使生成气体通入澄清石灰水,黑色氧化铜变为有光泽的金属颗粒,石灰水变浑浊。

 

  10.一氧化碳在空气中燃烧:发出蓝色的火焰,放出热量。

 

  11.向盛有少量碳酸钾固体的试管中滴加盐酸:有气体生成。

 

  12.加热试管中的硫酸铜晶体:蓝色晶体逐渐变为白色粉末,且试管口有液滴生成。

 

  13.钠在氯气中燃烧:剧烈燃烧,生成白色固体。

 

  14.点燃纯净的氯气,用干冷烧杯罩在火焰上:发出淡蓝色火焰,烧杯内壁有液滴生成。

 

  15.向含有C1-的溶液中滴加用硝酸酸化的硝酸银溶液,有白色沉淀生成。

 

  16.向含有SO42-的溶液中滴加用硝酸酸化的氯化钡溶液,有白色沉淀生成。

 

  17.一带锈铁钉投入盛稀硫酸的试管中并加热:铁锈逐渐溶解,溶液呈浅黄色,并有气体生成。

 

  18.在硫酸铜溶液中滴加氢氧化钠溶液:有蓝色絮状沉淀生成。

 

  19.将Cl2通入无色KI溶液中,溶液中有褐色的物质产生。

 

  20.在三氯化铁溶液中滴加氢氧化钠溶液:有红褐色沉淀生成。

 

  21.盛有生石灰的试管里加少量水:反应剧烈,发出大量热。

 

  22.将一洁净铁钉浸入硫酸铜溶液中:铁钉表面有红色物质附着,溶液颜色逐渐变浅。

 

  23.将铜片插入硝酸汞溶液中:铜片表面有银白色物质附着。

 

  24.向盛有石灰水的试管里,注入浓的碳酸钠溶液:有白色沉淀生成。

 

  25.细铜丝在氯气中燃烧后加入水:有棕色的烟生成,加水后生成绿色的溶液。

 

  26.强光照射氢气、氯气的混合气体:迅速反应发生爆炸。

 

  27.红磷在氯气中燃烧:有白色烟雾生成。

 

  28.氯气遇到湿的有色布条:有色布条的颜色退去。w.w.w.k.s.5.u.c.o.m

 

  29.加热浓盐酸与二氧化锰的混合物:有黄绿色刺激性气味气体生成。

 

  30.给氯化钠(固)与硫酸(浓)的混合物加热:有雾生成且有刺激性的气味生成。

 

  31.在溴化钠溶液中滴加硝酸银溶液后再加稀硝酸:有浅黄色沉淀生成。

 

  32.在碘化钾溶液中滴加硝酸银溶液后再加稀硝酸:有黄色沉淀生成。

 

  33.I2遇淀粉,生成蓝色溶液。

 

  34.细铜丝在硫蒸气中燃烧:细铜丝发红后生成黑色物质。

 

  35.铁粉与硫粉混合后加热到红热:反应继续进行,放出大量热,生成黑色物质。

 

  36.硫化氢气体不完全燃烧(在火焰上罩上蒸发皿):火焰呈淡蓝色(蒸发皿底部有黄色的粉末)。

 

  37.硫化氢气体完全燃烧(在火焰上罩上干冷烧杯):火焰呈淡蓝色,生成有刺激性气味的气体(烧杯内壁有液滴生成)。

 

  38.在集气瓶中混合硫化氢和二氧化硫:瓶内壁有黄色粉末生成。

 

  39.二氧化硫气体通入品红溶液后再加热:红色退去,加热后又恢复原来颜色。

 

  40.过量的铜投入盛有浓硫酸的试管,并加热,反应毕,待溶液冷却后加水:有刺激性气味的气体生成,加水后溶液呈天蓝色。

 

  41.加热盛有浓硫酸和木炭的试管:有气体生成,且气体有刺激性的气味。

 

  42.钠在空气中燃烧:火焰呈黄色,生成淡黄色物质。

 

  43.钠投入水中:反应激烈,钠浮于水面,放出大量的热使钠溶成小球在水面上游动,有"嗤嗤"声。

 

  44.把水滴入盛有过氧化钠固体的试管里,将带火星木条伸入试管口:木条复燃。

 

  45.加热碳酸氢钠固体,使生成气体通入澄清石灰水:澄清石灰水变浑浊。

 

  46.氨气与氯化氢相遇:有大量的白烟产生。

 

  47.加热氯化铵与氢氧化钙的混合物:有刺激性气味的气体产生。

 

  48.加热盛有固体氯化铵的试管:在试管口有白色晶体产生。

 

  49.无色试剂瓶内的浓硝酸受到阳光照射:瓶中空间部分显棕色,硝酸呈黄色。

 

  50.铜片与浓硝酸反应:反应激烈,有红棕色气体产生。

 

  51.铜片与稀硝酸反应:试管下端产生无色气体,气体上升逐渐变成红棕色。

 

  52.在硅酸钠溶液中加入稀盐酸,有白色胶状沉淀产生。

 

  53.在氢氧化铁胶体中加硫酸镁溶液:胶体变浑浊。

 

  54.加热氢氧化铁胶体:胶体变浑浊。

 

  55.将点燃的镁条伸入盛有二氧化碳的集气瓶中:剧烈燃烧,有黑色物质附着于集气瓶内壁。

 

  56.向硫酸铝溶液中滴加氨水:生成蓬松的白色絮状物质。

 

  57.向硫酸亚铁溶液中滴加氢氧化钠溶液:有白色絮状沉淀生成,立即转变为灰绿色,一会儿又转变为红褐色沉淀。

 

  58.向含Fe3+的溶液中滴入KSCN溶液:溶液呈血红色。

 

  59.向硫化钠水溶液中滴加氯水:溶液变浑浊。S2-+Cl2=2Cl2-+S↓

 

  60.向天然水中加入少量肥皂液:泡沫逐渐减少,且有沉淀产生。

 

  61.在空气中点燃甲烷,并在火焰上放干冷烧杯:火焰呈淡蓝色,烧杯内壁有液滴产生。

 

  62.光照甲烷与氯气的混合气体:黄绿色逐渐变浅,时间较长,(容器内壁有液滴生成)。

 

  63.加热(170℃)乙醇与浓硫酸的混合物,并使产生的气体通入溴水,通入酸性高锰酸钾溶液:有气体产生,溴水褪色,紫色逐渐变浅。w.w.w.k.s.5.u.c.o.m

 

  64.在空气中点燃乙烯:火焰明亮,有黑烟产生,放出热量。

 

  65.在空气中点燃乙炔:火焰明亮,有浓烟产生,放出热量。

 

  66.苯在空气中燃烧:火焰明亮,并带有黑烟。

 

  67.乙醇在空气中燃烧:火焰呈现淡蓝色。

 

  68.将乙炔通入溴水:溴水褪去颜色。

 

  69.将乙炔通入酸性高锰酸钾溶液:紫色逐渐变浅,直至褪去。

 

  70.苯与溴在有铁粉做催化剂的条件下反应:有白雾产生,生成物油状且带有褐色。

 

  71.将少量甲苯倒入适量的高锰酸钾溶液中,振荡:紫色褪色。

 

  72.将金属钠投入到盛有乙醇的试管中:有气体放出。

 

  73.在盛有少量苯酚的试管中滴入过量的浓溴水:有白色沉淀生成。

 

  74.在盛有苯酚的试管中滴入几滴三氯化铁溶液,振荡:溶液显紫色。

 

  75.乙醛与银氨溶液在试管中反应:洁净的试管内壁附着一层光亮如镜的物质。

 

  76.在加热至沸腾的情况下乙醛与新制的氢氧化铜反应:有红色沉淀生成。

 

  77.在适宜条件下乙醇和乙酸反应:有透明的带香味的油状液体生成。

 

  78.蛋白质遇到浓HNO3溶液:变成黄色。

 

  79.紫色的石蕊试液遇碱:变成蓝色。

 

  80.无色酚酞试液遇碱:变成红色。

 

  十三.有机实验的八项注意

 

  有机实验是中学化学教学的重要内容,是高考会考的常考内容。对于有机实验的操作及复习必须注意以下八点内容。

 

  1.注意加热方式

 

  有机实验往往需要加热,而不同的实验其加热方式可能不一样。

 

  ⑴酒精灯加热。酒精灯的火焰温度一般在400~500℃,所以需要温度不太高的实验都可用酒精灯加热。教材中用酒精灯加热的有机实验是:"乙烯的制备实验"、"乙酸乙酯的制取实验""蒸馏石油实验"和"石蜡的催化裂化实验"。w.w.w.k.s.5.u.c.o.m

 

  ⑵酒精喷灯加热。酒精喷灯的火焰温度比酒精灯的火焰温度要高得多,所以需要较高温度的有机实验可采用酒精喷灯加热。教材中用酒精喷灯加热的有机实验是:"煤的干馏实验"。

 

  ⑶水浴加热。水浴加热的温度不超过100℃。教材中用水浴加热的有机实验有:"银镜实验(包括醛类、糖类等的所有的银镜实验)"、"硝基苯的制取实验(水浴温度为60℃)"、"酚醛树酯的制取实验(沸水浴)"、"乙酸乙酯的水解实验(水浴温度为70℃~80℃)"和"糖类(包括二糖、淀粉和纤维素等)水解实验(热水浴)"。

 

  ⑷用温度计测温的有机实验有:"硝基苯的制取实验"、"乙酸乙酯的制取实验"(以上两个实验中的温度计水银球都是插在反应液外的水浴液中,测定水浴的温度)、"乙烯的实验室制取实验"(温度计水银球插入反应液中,测定反应液的温度)和"石油的蒸馏实验"(温度计水银球应插在具支烧瓶支管口处,测定馏出物的温度)。

 

  2、注意催化剂的使用

 

  ⑴硫酸做催化剂的实验有:"乙烯的制取实验"、"硝基苯的制取实验"、"乙酸乙酯的制取实验"、"纤维素硝酸酯的制取实验"、"糖类(包括二糖、淀粉和纤维素)水解实验"和"乙酸乙酯的水解实验"。

 

  其中前四个实验的催化剂为浓硫酸,后两个实验的催化剂为稀硫酸,其中最后一个实验也可以用氢氧化钠溶液做催化剂

 

  ⑵铁做催化剂的实验有:溴苯的制取实验(实际上起催化作用的是溴与铁反应后生成的溴化铁)。

 

  ⑶氧化铝做催化剂的实验有:石蜡的催化裂化实验。

 

  3、注意反应物的量

 

  有机实验要注意严格控制反应物的量及各反应物的比例,如"乙烯的制备实验"必须注意乙醇和浓硫酸的比例为1:3,且需要的量不要太多,否则反应物升温太慢,副反应较多,从而影响了乙烯的产率。

 

  4、注意冷却

 

  有机实验中的反应物和产物多为挥发性的有害物质,所以必须注意对挥发出的反应物和产物进行冷却。

 

  ⑴需要冷水(用冷凝管盛装)冷却的实验:"蒸馏水的制取实验"和"石油的蒸馏实验"。

 

  ⑵用空气冷却(用长玻璃管连接反应装置)的实验:"硝基苯的制取实验"、"酚醛树酯的制取实验"、"乙酸乙酯的制取实验"、"石蜡的催化裂化实验"和"溴苯的制取实验"。

 

  这些实验需要冷却的目的是减少反应物或生成物的挥发,既保证了实验的顺利进行,又减少了这些挥发物对人的危害和对环境的污染。

 

  5、注意除杂

 

  有机物的实验往往副反应较多,导致产物中的杂质也多,为了保证产物的纯净,必须注意对产物进行净化除杂。如"乙烯的制备实验"中乙烯中常含有CO2和SO2等杂质气体,可将这种混合气体通入到浓碱液中除去酸性气体;再如"溴苯的制备实验"和"硝基苯的制备实验",产物溴苯和硝基苯中分别含有溴和NO2,因此,产物可用浓碱液洗涤。

 

  6、注意搅拌

 

  注意不断搅拌也是有机实验的一个注意条件。如"浓硫酸使蔗糖脱水实验"(也称"黑面包"实验)(目的是使浓硫酸与蔗糖迅速混合,在短时间内急剧反应,以便反应放出的气体和大量的热使蔗糖炭化生成的炭等固体物质快速膨胀)、"乙烯制备实验"中醇酸混合液的配制。

 

  7、注意使用沸石(防止暴沸)

 

  需要使用沸石的有机实验:⑴实验室中制取乙烯的实验;⑵石油蒸馏实验。

 

  8、注意尾气的处理

 

  有机实验中往往挥发或产生有害气体,因此必须对这种有害气体的尾气进行无害化处理。

 

  ⑴如甲烷、乙烯、乙炔的制取实验中可将可燃性的尾气燃烧掉;⑵"溴苯的制取实验"和"硝基苯的制备实验"中可用冷却的方法将有害挥发物回流。

 

  十四.离子反应离子共存离子方程式

 

  电解质在溶液里所起的反应,实质上就是离子之间的相互反应。离子间的反应是趋向于降低离子浓度的方向进行。离子反应通常用离子方程式来表示。理解掌握离子反应发生的条件和正确书写离子方程式是学好离子反应的关键。溶液中离子共存的问题,取决于离子之间是否发生化学反应,如离子间能反应,这些离子就不能大量共存于同一溶液中。

 

试题详情

高考理综化学复习最后阶段的整理、纠错

­­

题首语:错解是成功之母,反思是成功之父,整理是成功之路,纠错是成功之行

在高三化学复习的最后阶段,如何提高复习的针对性;提高做题过程的时效性,达到查漏补缺,以不变应万变之目的。在有限的复习时间里,实现考试实力的最大提高。为此,在历年的高三高考备考的实践基础上,参考2008年高三阶段的实际复习知识体系,结合学生复习过程中出现的易混易错的知识点或试题,编制成系列问题,供学生自查、整理、纠错。

 “元素化合物”知识模块

1.碱金属元素原子半径越大,熔点也越高,单质的活泼性越大

2.硫与白磷皆易溶于二硫化碳、四氯化碳等有机溶剂,有机酸则较难溶于水

3.在硫酸铜饱和溶液中加入足量浓硫酸产生白色固体

4.能与冷水反应放出气体单质的只有是活泼的金属单质或活泼的非金属单质

5.将空气液化,然后逐渐升温,先制得氧气,余下氮气

6.把生铁冶炼成碳素钢要解决的主要问题是除去生铁中除Fe以外各种元素,把生铁提纯

7.虽然自然界含钾的物质均易溶于水,但土壤中K%不高,故需施钾肥满足植物生长需要

8.制取漂白粉、配制波尔多液以及改良酸性土壤时,都要用到熟石灰

9.二氧化硅是酸性氧化物,它不溶于酸溶液

10.铁屑溶于过量盐酸,再加入氯水或溴水或碘水或硝酸锌,皆会产生Fe3+

11.常温下,浓硝酸可以用铝罐贮存,说明铝与浓硝酸不反应

12.NaAlO2、Na2SiO3、Na2CO3、Ca(ClO)2、NaOH、C17H35COONa、C6H5ONa等饱和溶液中通入CO2

出现白色沉淀,继续通入CO2至过量,白色沉淀仍不消失

13.大气中大量二氧化硫来源于煤和石油的燃烧以及金属矿石的冶炼

14.某澄清溶液由NH4Cl、AgNO3、NaOH三种物质混合而成,若加入足量硝酸必产生白色沉淀

15.为了充分利用原料,硫酸工业中的尾气必须经净化、回收处理

16.用1molAl与足量NaOH溶液反应,共有3mol电子发生转移

17.硫化钠既不能与烧碱溶液反应,也不能与氢硫酸反应

18.在含有较高浓度的Fe3的溶液中,SCN、I、AlO2、S2、CO32-、HCO3-等不能大量共存

19.活性炭、二氧化硫、氯水等都能使品红褪色,但反应本质有所不同

20.乙酸乙酯、三溴苯酚、乙酸钠、液溴、玻璃、重晶石、重钙等都能与烧碱反应

21.在FeBr2溶液中通入一定量Cl2可得FeBr3、FeCl2、Br2

22.在NaAlO2、Na2SiO3、Na2CO3、Ca(ClO)2、NaOH、C17H35COONa、C6H5ONa等饱和溶液中通入

CO2气体,出现白色沉淀,继续通入CO2至过量,白色沉淀仍不消失

23.在次氯酸钠溶液中通入少量二氧化硫可得亚硫酸钠与次氯酸

24.有5.6g铁与足量酸反应转移电子数目为0.2NA

25.含有最高价元素的化合物不一定具有强氧化性

26.单质的还原性越弱,则其氧化性越强

27.下列物质与水反应能产生可燃性气体:电石、硫化铝、红热的炭、过氧化钠等

38.单质X能从盐的溶液中置换出单质Y,则单质X与Y的物质属性可以是:(1)金属和金属;(2)非金属和非金属;(3)金属和非金属;(4)非金属和金属;

29.H2S、HI、FeCl2、浓H2SO4、Na2SO3、苯酚等溶液在空气中久置因发生氧化还原反应而变质

30.浓硝酸、浓硫酸在常温下都能与铜、铁等发生反应

 “基本概念基础理论”知识模块

1.与水反应可生成酸的氧化物都是酸性氧化物

2.分子中键能越大,分子化学性质越稳定。

3.金属活动性顺序表中排在氢前面的金属都能从酸溶液中置换出氢

4.既能与酸反应又能与碱反应的物质是两性氧化物或两性氢氧化物

5.原子核外最外层e-≤2的一定是金属原子;目前金属原子核外最外层电子数可为1/2/3/4/5/6/7

6.非金属元素原子氧化性弱,其阴离子的还原性则较强。

7.质子总数相同、核外电子总数也相同的两种粒子可以是:(1)原子和原子;(2)原子和分子;(3)分子和分子;(4)原子和离子;(5)分子和离子;(6)阴离子和阳离子;(7)阳离子和阳离子;w.w.w.k.s.5.u.c.o.m

8.盐和碱反应一定生成新盐和新碱;酸和碱反应一定只生成盐和水

9.pH=2和pH=4的两种酸混合,其混合后溶液的pH值一定在2与4之间

10.强电解质在离子方程式中要写成离子的形式

11.电离出阳离子只有H的化合物一定能使紫色石蕊变红

12.甲酸电离方程式为:HCOOH=H++COOH-

13.离子晶体都是离子化合物,分子晶体不都是共价化合物

14.一般说来,金属氧化物,金属氢氧化物的胶体微粒带正电荷

15.元素周期表中,每一周期所具有的元素种数满足2n2(n是自然数)

16.强电解质的饱和溶液与弱电解质的浓溶液的导电性都比较强

17.标准状况下,22.4L以任意比例混合的CO与CO2中所含碳原子总数约为NA

18.同温同压,同质量的两种气体体积之比等于两种气体密度的反比

19.纳米材料中超细粉末粒子的直径(1-100nm)与胶体微粒的直径在同一数量级

20.1molOH-在电解过程中完全放电时电路中通过了NA个电子

21.同体积同物质的量浓度的Na2SO3、Na2S、NaHSO3、H2SO3溶液中离子数目依次减小

22.碳-12的相对原子质量为12,碳-12的摩尔质量为12g/mol

23.电解、电泳、电离、电化腐蚀均需在通电条件下才能进行,均为化学变化

24.油脂、淀粉、蛋白质、硝化甘油、苯酚钠、乙烯、明矾、Al2S3、Mg3N2、CaC2、等一定条件下皆能发生水解反应

25.氯化钾晶体中存在K+与Cl-;过氧化钠中存在Na+与O-为1:1;石英中只存在Si、O原子

26.将NA个NO2气体分子处于标准状况下,其体积约为22.4L

27.常温常压下,32g氧气中含有NA个氧气分子;60gSiO2中含有NA分子、3NA个原子

28.构成分子晶体的微粒中不一定含有共价键

29.胶体能产生电泳现象,故胶体带有电荷

30.溶液的pH值越小,则其中所含的氢离子浓度就越大

31.只有在离子化合物中才存在阴离子

32.原子晶体熔化需要破坏极性键或非极性键

33.液氨、液氯、液态二氧化硫等皆为非电解质

34.分子晶体的熔点不一定比金属晶体低

35.同一主族元素的单质的熔沸点从上到下不一定升高,但其氢化物的熔沸点一定升高

36.电解硫酸铜溶液或硝酸银溶液后,溶液的酸性必定增强

37.氯化钠晶体中,每个钠离子周围距离最近且相等的钠离子有6个

38.用1L 1mol/L FeCl3溶液完全水解制胶体,生成NA个胶体微粒

39.在HF、PCl3、P4、CO2、SF6等分子中,所有原子都满足最外层8e-结构

40.最外层电子数较少的金属元素,一定比最外层电子数较它多的金属元素活泼性强

“有机化学”知识模块w.w.w.k.s.5.u.c.o.m

1.羟基官能团可能发生反应类型:取代、消去、酯化、氧化、缩聚、中和反应

2.最简式为CH2O的有机物:甲酸甲酯、麦芽糖、纤维素

3.分子式为C5H12O2的二元醇,主链碳原子有3个的结构有2种

4.常温下,pH=11的溶液中水电离产生的c(H+)是纯水电离产生的c(H+)的104

5.甲烷与氯气在紫外线照射下的反应产物有4种

6.醇类在一定条件下均能氧化生成醛,醛类在一定条件下均能氧化生成羧酸

7.CH4O与C3H8O在浓硫酸作用下脱水,最多可得到7种有机产物

8.分子组成为C5H10的烯烃,其可能结构有5种

9.分子式为C8H14O2,且结构中含有六元碳环的酯类物质共有7种

10.等质量甲烷、乙烯、乙炔充分燃烧时,所耗用的氧气的量由多到少。

11.棉花和人造丝的主要成分都是纤维素

12.聚四氟乙烯的化学稳定性较好,其单体是不饱和烃,性质比较活泼

13.酯的水解产物只可能是酸和醇;四苯甲烷的一硝基取代物有3种

14.甲酸脱水可得CO,CO在一定条件下与NaOH反应得HCOONa,故CO是酸酐

15.应用水解、取代、加成、还原、氧化等反应类型均可能在有机物分子中引入羟基

16.由天然橡胶单体(2-甲基-1,3-丁二烯)与等物质的量溴单质加成反应,有三种可能生成物

17.苯中混有己烯,可在加入适量溴水后分液除去

18.由2-丙醇与溴化钠、硫酸混合加热,可制得丙烯

19.混在溴乙烷中的乙醇可加入适量氢溴酸除去

20.应用干馏方法可将煤焦油中的苯等芳香族化合物分离出来

21.甘氨酸与谷氨酸、苯与萘、丙烯酸与油酸、葡萄糖与麦芽糖皆不互为同系物

22.裂化汽油、裂解气、活性炭、粗氨水、石炭酸、CCl4、焦炉气等都能使溴水褪色

23.苯酚既能与烧碱反应,也能与硝酸反应

24.常温下,乙醇、乙二醇、丙三醇、苯酚都能以任意比例与水互溶

25.利用硝酸发生硝化反应的性质,可制得硝基苯、硝化甘油、硝酸纤维

26.分子式C8H16O2的有机物X,水解生成两种不含支链的直链产物,则符合题意的X有7种

27.1,2-二氯乙烷、1,1-二氯丙烷、一氯苯在NaOH醇溶液中加热分别生成乙炔、丙炔、苯炔

28.甲醛加聚生成聚甲醛,乙二醇消去生成环氧以醚,甲基丙烯酸甲酯缩聚生成有机玻璃

29.甲醛、乙醛、甲酸、甲酸酯、甲酸盐、葡萄糖、果糖、麦芽糖、蔗糖都能发生银镜反应

30.乙炔、聚乙炔、乙烯、聚乙烯、甲苯、乙醛、甲酸、乙酸都能使KMnO4(H+)(aq)褪色

“化学实验”知识模块w.w.w.k.s.5.u.c.o.m

1.银氨溶液、氢氧化铜悬浊液、氢硫酸等试剂不宜长期存放,应现配现用

2.实验室制取氧气完毕后,应先取出集气瓶,再取出导管,后停止加热

3.品红试纸、醋酸铅试纸、pH试纸、石蕊试纸在使用前必须先用蒸馏水润湿

4.用标准盐酸滴定未知NaOH溶液时,所用锥形瓶不能用未知NaOH溶液润洗

5.为防止挥发,浓氨水、氢氟酸、漂白粉、液溴、汽油、乙酸乙酯等均需密封保存

6.浓H2SO4沾到皮肤上,应立即用水冲洗,再用干燥布擦净,最后涂上NaHCO3溶液

7.一支25mL的滴定管中,液面所在刻度为12.00,则其中所盛液体体积大于13.00mL

8.准确量取25.00mL的KMnO4溶液,可用50mL碱式滴定管

9.分液时,分液漏斗中下层液体从下口放出,上层液体从上口倒出

10.蒸馏时,应使温度计水银球靠近蒸馏烧瓶支管口。分析下列实验温度计水银球位置。

(测定溶解度、制乙烯、硝基苯、苯磺酸、酚醛树脂、乙酸乙酯制备与水解、糖水解)

11.滴定时,左手控制滴定管活塞,右手握持锥形瓶,边滴边振荡,眼睛注视滴定管中的液面下降的速度

12.称量时,称量物放在称量纸上,置于托盘天平的右盘,砝码放在托盘天平的左盘中

13.试管中注入某无色溶液密封,加热试管,溶液变红色,冷却后又变无色。确定溶液成分

14.一种试剂可以鉴别甲苯、氯仿、己烯、酒精、苯酚水溶液、纯碱溶液

15.氢氧化钠溶液滴定醋酸时,通常选择甲基橙作指示剂,终点颜色由橙变黄

16.除去蛋白质溶液中的可溶性盐可通过盐析的方法

17.配制硫酸亚铁溶液所用的蒸馏水应预先煮沸,以除去溶解在水中的氧气

18.试管、蒸发皿、坩埚、锥形瓶等仪器均可直接在酒精灯火焰上加热

19.所谓硅胶,即硅酸胶体。硅胶变色为物理变化〔CoCl2?H2O(蓝色)CoCl2?6H2O(红色)〕

20.饱和纯碱溶液可除去乙酸乙酯中的乙酸;渗析法分离油脂皂化所得的混合液

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