岳阳市一中2009年高三第六次考试
英 语
时量:120分钟 分值:150分
命题人:高三英语备课组
第一部分:听力(共两节,满分30分)
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,选出最佳选项.
1. Why did the woman call the man?
A. She didn’t know how to use the new refrigerator.
B. She wanted her washing machine to be fixed.
C. There was something wrong with the refrigerator.
2. What kind of place are the speakers probably talking about?
A. A football field. B. An office building. C. A concert hall.
3. What does the woman mean?
A. She doesn’t feel like going out. B. She would like to go for a walk.
C. She is worried about the rainy weather.
4. What is the man doing?
A. Offering help. B. Giving permission. C. Asking for suggestion.
5. What can we learn from the conversation?
A. They are preparing for a party. B. The woman will buy more plates.
C. The man won’t go to the party.
第二节(共12小题; 每小题1.5分,满分18分)
听第6段对话,回答第6至8题。
6. When will the man come back from the trip?
A. December 22. B. January 3. C. January 13.
7. Which flights is the man going to take for his round trip?
A. Flight 414 and Flight 476. B. Flight 476 and Flight 220.
C. Flight 220 and Flight 414.
8. When
should the man arrive at the airport to take a plane for
A. By 2:00 p.m. B. By 6:30 p.m. C. At 3:00 p.m.
听第7段对话,回答第9至11题。
9. Where are they planning to go in the morning?
A. To a park. B. To an art museum. C. To a shopping centre.
10. Why does the man want to visit the zoo in the afternoon?
A. The zoo will be closed the rest of the week.
B. The zoo is free to visitors that day only.
C. There are unusual animals on display.
11. Why does the woman want to go shopping instead?
A. She wants to buy mementos(纪念品)of their visit.
B. She saw some great prices at a shopping centre.
C. She wanted to buy a gift for her friend.
听第8段对话,回答第12至14题。
12. What does the man usually do in the gym?
A. Swim. B. Play pingpong. C. Play tennis.
13. What’s the woman busy with?
A. Classes. B. Studying. C. Reading.
14. Why does the woman have no time to have exercise?
A. Because of great expectation. B. Because of some serious thought.
C. Because of tight schedule.
听第9段对话,回答第15至17题。
15. What does Simon think of the college?
A. He likes its small size. B. He likes the place where it is.
C. He likes the students of the college.
16. What do the students at the college do in their free time?
A. All kinds of things but going to the library to study.
B. Many things, including going to the library to study.
C. All the students go to the clubs to meet their friends.
17. How many students are there in the college Simon is visiting?
A. About 10,000. B. About 1,000. C. About 5,000.
第三节(共3小题;每小题1.5分,满分4.5分)
听下面一段材料,将第18至20三个小题的信息补充完整。每小题不超过三个单词。本段材料读两遍。
Nine O’clock News
News 1
Mr. Ben Kitson, who wrote 18._________and
plays for children, has died at his home in
News 2
Policemen in
News 3
It has been a good year on the farm. 20._______ will cost less in the shops this year.
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)
21. My neighbour asked me to go for _______ walk, but I don’t think I’ve got ______energy. w.w.w.k.s.5 u.c.o.m
A. a; 不填 B. the; the C. 不填; the D. a; the
22. It is said that the school will be built in _______is called a developing zone.
A. what B. that C. which D. where
23. The year 2005 was _____ ever recorded since scientists began keeping track of the numbers in the late 1800s.
A. the hotter B. hot C. hotter D. the hottest
24. English
lessons are in strong demand in the
A. have to B. may have to C. must D. may
25. Customs Service officials knew drug dealers_______ across the border, so the government asked the Indians there to help in the fight against the drug dealers.
A. were coming B. came
C. had come D. had been coming
26. Books are the important records we keep _____ man’s thought, ideas and feelings.
A. on B. up C. of D. for
27. Police agencies had all the modern technology ______ people who tried to sell illegal goods.
A. needing to help catch B. needed helping to catch
C. needed to help catch D. needed to helping to catch
28. Bryan Nez says ______ can be followed because his fellows leave such signs on the ground that people can easily find them.
A. someone B. anyone C. none D. everyone
29. The boy ______ Steve, who is very good at the computer, ______ Bill Gates in our school.
A. with the name; is compared to B. who called; compared with
C. calling; is compared to B. whose name is; compared with
30. I don’t know whether it was lost or stolen; ______, it’s gone.
A. anyway B. but C. however D. though
31. Special English ______ English the way a foreign language program would.
A. didn’t teach B. doesn’t teach C. hasn’t taught D. isn’t taught
32. The police were ordered to look into the case _______ an actress was
murdered.
A. which B. in which C. during that D. that
33. The Shadow Wolves main task is _________ illegal car trade.
A. finding and stopping B. to find and stopping
C. finding to stop D. find and stop
34. If things are left ____they are, the problems will never be settled, I am afraid.
A. how B. as C. what D. where
35. ________ at the school gate were my classmates.
A. Stood B. Standing C. To stand D. Stand
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,从短文后所给A、B、C、D四个选项中选出能填入空白处的最佳选项。
Mark was seven when he joined his father and two other elder brothers at sunrise in the fields. __36__ the time he was eight he was helping Dad fix up old furniture. He was given a cent for every nail he __37__ out of old boards.
He got his first __38__ job at BT’s Restaurant in town, when he reached twelve. His main tasks were__39__tables and washing dishes, __40__sometimes he helped cook.
Every day after school he would __41__ to BT’s and work till ten. Even on Saturdays he __42__ from two till eleven. At that age it was difficult going to work and __43__ his friends run off to swim or play. He didn’t necessarily like work, but he loved what working __44__ him to have. Because of his __45__ he was always the one buying when his friends and he went to the local shop. That made him __46__.
Word that he was trustworthy and hard-working __47__ around the town. A local clothing shop offered him credit(赊帐)__48__ he was only in Grade 7. He immediately __49__ a $ 68 sports coats and a $ 22 pair of shoes. He was__50__ only 65 cents an hour, and he already owed the shopkeeper $ 90! So he learned __51__ the danger of easy credit. He paid it __52__ as soon as he could.
The first job taught him self-control, responsibility and brought him a __53__of personal satisfaction few of his friends had experienced. As his father, __54__worked three jobs, once told him, “If you__55__sacrifice and responsibility, there are not many things in life you cannot have.” How right he was!
36. A. Before B. Within C. From D. By
37. A. pulled B. put C. picked D. pressed
38. A. usual B. real C. main D. participate
39. A. sweeping B. packing C. clearing D. empting
40. A. or B. so C. but D. even
41. A. head B. turn C. change D. move
42. A. studied B. worked C. played D. slept
43. A. helping B. having C. watching D. letting
44. A. asked B. told C. promised D. allowed
45. A. study B. power C. age D. job
46. A. proud B. friendly C. lucky D. hopeful
47. A. ran B. got C. flew D. carried
48. A. although B. while C. if D. since
49. A. sold B. borrowed C. charged D. wore
50. A. keeping B. making C. paying D. taking
51. A. gradually B. greatly C. hardly D. early
52. A. out B. over C. away D. off
53. A. point B. level C. part D. sign
54. A. he B. that C. who D. whoever
55. A. understand B. demand C. offer D. fear
第三部分:阅读理解(共两节,满分40分)
第一节:选择题(共17小题;每小题2分,满分34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。
A
Children have their own rules in playing games. They seldom need a judge and rarely trouble to keep scores. They don’t care much about who wins or loses, and it doesn’t seem to worry them if the game is not finished. Yet, they like games that depend a lot on luck, so that their personal abilities cannot be directly compared. They also enjoy games that move in stages, in which each stage, the choosing of leaders, the picking-up of sides, or the determining of which side shall start, is almost a game in itself.
Grown-ups can hardly find children’s games exciting, and they often feel puzzled at why their kids play such simple games again and again. However, it is found that a child plays games for very important reasons. He can be a good player without having to think whether he is a popular person, and he can find himself being a useful partner to someone of whom he is ordinarily afraid. He becomes a leader when it comes to his turn. He can be confident, too, in particular games, that it is his place to give orders, to pretend to be dead, to throw a ball actually at someone, or to kiss someone he caught.
It appears to us that when children play a game they imagine a situation under their control. Everyone knows the rules, and more important, everyone plays according to the rules. Those rules may be childish, but they make sure that every child has a chance to win.
56. What is true about children when they play games?
A. They can stop playing any time they like.
B. They can test their personal abilities.
C. They want to pick a better team. D. They don’t need rules.
57. To become a leader in a game the child has to ______.
A. play well B. wait for his turn
C. be confident in himself D. be popular among his playmates
58. What do we know about grown-ups?
A. They are not interested in games.
B. They find children’s games too easy.
C. They don’t need a reason to play games.
D. They don’t understand children’s games.
59. The writer believes that _______.
A. children should make better rules for their games
B. children should invite grow-ups to play with them
C. children’s games can do them a lot of good
D. children play games without reasons
B
Beauty has always been regarded as something praiseworthy. Almost everyone thinks attractive people are happier and healthier, have better marriages and have more respectable jobs. Personal advisors give them better advice for finding jobs. Even judge are softer on attractive defendants(被告).But in the executive (主管的)circle, beauty can become a liability.
While attractiveness is a positive factor for a man on his way up the executive leader, it is harmful to a woman. Handsome male executives were considered as having more honesty than plainer men: effort and ability were thought to lead to their success.
Attractive female executives were considered to have less honesty than unattractive ones; their success was connected not with ability but with factors such as luck. All unattractive women executives were thought to have more honesty and to be more capable than the attractive female executives. Interestingly, though, the rise of the unattractive overnight successes was connected more to personal relationships and less to ability than that of the attractive overnight successes.
Why are attractive women not thought to be able? An attractive woman is considered to be more feminine and an attractive man more manly than the less attractive ones. Thus, an attractive woman has an advantage in traditionally female jobs, but an attractive woman in a traditionally manly position appears to lack the “manly” qualities required.
This is true even in politics. “When the only clue is how he or she looks, people treat men and women differently,” says Anne Brown, who recently published a study on the effects of attractiveness on political candidates. She asked 125 undergraduate students to rank two groups of photographs, one of men and one of women, in order of attractiveness. The students were told the photographs were of candidates for political offices. They were asked to rank them again, in the order they would vote for them.
The results showed that attractive males completely defeated unattractive men, but women who had ranked most attractive unchangeably received the fewest votes.
60. The underlined word “liability” (Para1) most probable means _______.
A. disadvantage B. advantage C. misfortune D. trouble
61. In traditionally female jobs, attractiveness_______.
A. makes women look more honest and capable
B. strengthens the feminine qualities required
C. is of great importance to women
D. often enables women to succeed quickly
62. Bowman’s experiment shows that when it comes to politics, attractiveness
________.
A. turns out to be a disadvantage to men
B. is more of a disadvantage than an advantage to woman
C. affects men and women alike
D. has as little effect on men as on women
63. It can be inferred from the passage that people’s views on beauty are often__.
A. practical B. supportive C. old-fashioned D. one-sided
64. The author writes this passage to ______.
A. give advice to job-seekers who are attractive
B. discuss the disadvantages of being attractive
C. demand equal rights for women D. state the importance of appearance
C
Congratulations, Mr. Jones, it’s a girl.
Fatherhood is going to have a different meaning and bring forth a different answer from every man who bears these words. Some feel proud when they receive the news, while others worry, wondering whether they will be good fathers. Although there are some men who like children and may have had considerable experience with them, others do not particularly care for children and spend little time with them. Many fathers and mothers have been planning and looking forward to children for some time. For other couples, pregnancy(怀孕)was an accident that both husband and wife have accepted willingly or unwillingly.
Whatever the reaction to the birth of a child, it is obvious that the change from the role of husband to that of father is a difficult task. Yet, unfortunately, few attempts have been made to educate fathers in this re-socialization process. Although many good books have been written about American mothers, only recently have some books discussed the role of a father.
It is argued by some writers that the transition to the father’s role, although difficult, is not nearly as great as the transition the wife must make to the mother’s role. The mother’s role seems to require a complete transformation of daily routine and adaptation to a new life, on the other hand, the father’s role is less demanding and immediate. However, even though we have mentioned the fact that growing numbers of women are working out of home, the father is still thought by many as the breadwinner in the household.
65. According to the author, being a father ________.
A. brings a feeling of excitement to some men
B. has a different meaning for those who have daughters
C. makes some men feel proud and others easy
D. means nothing but more responsibilities
66. It is stated in the passage that ________.
A. some parents are not prepared to have a child
B. young couples do not like children at all
C. working couples do not have much time to take care of their children
D. many parents look forward to having a boy as their first child
67. The transition to the mother’s role requires that the wife ______.
A. changes her life style in a quite different way
B. makes a complete change in her everyday life to deal with the new situation
C. stays at home to take care of the baby
D. helps her husband in his re-socialization process
68. Some writers argue that with respect to the change of roles, fathers, compared
with mothers, _________.
A. have to do more in the household
B. have to make more difficult adaptations
C. have an easier job to do
D. can usually do a better job
D
Dr. Wiseman started the “laugh lab” project in September 2001. It is the largest study of humour. Participants are invited to log(登录)on to the laugh lab website, give a few personal details, tell their favourite jokes and judge the jokes told by other people.
The project will last for a year, and the organizers hope to finally discover the world’s funniest joke. But there is also a serious purpose. The researchers want to know what make people from different nations and cultures find funny. And they want to find out the differences between the male’s and female’s sense of humour. The idea is that we want to understand each other, we have to find out what makes us laugh.
This is a subject that has long interested psychologists and philosophers. Most of the time, people are not completely honest. We do things that society expects us to and say things that help us get what we want. But laughing cannot be controlled. When we laugh, we tell the truth about ourselves. By December 2001 over 10,000 jokes had been submitted. This gave the scientists enough evidence to make early conclusions. It seems that men and women do have different senses of humour, for instance.
“Our findings show the major differences in the ways in which males and females use humour,” said Dr. Wiseman. “Males use humour to appear superior to others, while women are more skilled in languages and prefer word play.”
Researchers also found that there really is such a thing as a national sense of humour. The British enjoy what is usually called “toilet humour”. But the French like their jokes short and sharp: “You’re a high priced lawyer. Will you answer two questions for 500?” “Yes. What’s the second question?” The Germans are famous for not having a sense of humour. But the survey found that German participants were more likely to find submitted jokes funny than any other nationality. Perhaps that proves the point. Is this joke funny? I don’t know, but let’s say yes, just to be safe.
Dr. Wiseman and his workmates also submitted jokes created by computer. But none of those who took part in the survey found any of them amusing. Perhaps this is relief. Computers already seem like they can do everything. At least they should leave the funny stuff to us.
69. We can infer from the passage that ________.
A. most of the people all over the world are completely honest
B. psychologists and philosophers take interest in the “laugh lab” project
C. ordinary people are not interested in the “laugh lab” project at all
D. people tell the truth about themselves only when they laugh
70. What is the main idea of the 4th and 5th paragraph?
A. Man and woman have different senses of humour.
B. Male and female have similar senses of humour.
C. About 10,000 jokes have been submitted from September 2001 to December 2001.
D. Scientists have collected enough evidence to make conclusions.
71. The writer gave the examples of the British, the French and the Germans _________.
A. to show that people from different nations have different senses of humour
B. to prove the British people have a sense of “toilet humour”
C. to show French people have a better sense of humour
D. to prove that the Germans have no sense of humour
72. Which statements is TURE according to the passage?
A. The jokes created by computer are less funny than those by humans.
B. The Germans cannot find the submitted jokes amusing.
C. Males are better at word play compared with women.
D. Female like to use humour to show that they are superior.
第二节:简答题(共3小题;每小题2分,满分6分)
阅读下面短文,根据第73至第75小题的具体要求,简要回答问题。
So long as teachers fail to
distinguish between teaching and learning, they will continue to undertake to
do for children that which only children can do for themselves. Teaching
children to read is not passing reading on to them. It is certainly not endless
hours spent in activities about reading.
Teaching and learning are two different processes. They differ in kind and function. The function of teaching is to create the conditions and the climate that will make it possible for children to devise the most efficient system for teaching themselves to read. Teaching is also public activity. It can be seen and observed.
Learning to read involves all that each individual does to make sense of the world of printed language. Almost all of it is private, for learning is an occupation of the mind, and that process is not open to public scrutiny.
If teacher and learner roles are not interchangeable, what then can be done through teaching that will aid the child in exploring knowledge? Smith has one principal rule for all teaching instructions. “Make learning to read easy, which means making reading a meaningful, enjoyable and frequent experience for children.”
When the roles of teacher and learner are seen for what they are, and when both teachers fulfill them appropriately, then much of the pressure and feeling of failure for both is eliminated. Learning to read is made easier when teachers create an environment where children are given the opportunity to solve the problem of learning to read by reading.
73. Find in the passage a word closest in meaning and use its other form to explain the underlined word “occupation”.
74. What does it mean according to the author if teachers can enable students to develop their own way of reading?(回答词数不超过8个)
75. What is the main idea of the passage?(回答词数不超过8个)
第四部分:书面表达(共两节,满分35分)
第一节:填空(共10小题;每小题1分,满分10分)
阅读下面短文,根据所读内容在文后第76至第85小题的空格里填上适当的单词或词组。注意:每空不超过3个单词。
Do you think that daydreaming is a waste of time? Probably so.
“On the contrary,” says L.Giambra, an expert in psychology, “Daydreaming is quite necessary. Without it, the mind couldn’t get done all the thinking it has to do during a normal day…You can’t possibly do all your thinking with a consciousness. Instead, your unconscious mind is working out problems all the time. Daydreaming then may be one way that the unconscious and conscious states of mind have silent dialogues.”
Early psychology experts paid no
attention to the importance of daydreams or even considered them harmful. At
one time daydreaming was thought to be a cause of some mental illnesses. They
did not have a better understanding of daydreams until the late
Daydreams are usually very simple and direct, quite unlike sleep dreams, which may be hard to understand. It’s easier to gain a deep understanding of your life by paying close attention to your daydreams than by trying to examine your sleep dreams carefully. Daydreams help you recognize the difficult situations in our life and find out a possible way of dealing with them.
Daydreams cannot by predicted. They move off in unexpected directions which may be creative and full of ideas. For many famous artists and scientists, daydreams were and are a main source of creative energy.
Title: 76. _____________
Effects
77. __________in the day
Organizing our lives
78. ________________
79. ________________
80. ______________
Reasons
Simple and direct→
Helping gain a deep understanding of life
81. _______________in life
82. __________a possible way of dealing with difficulties
83. _______
Unconscious
→moving off in unexpected directions→
85. _____________
84. ________
第二节:书面表达(满分25分)
以下面的梗概为依据,写一篇书面表达。
1. 目前,父母和子女之间缺互理解导致代沟;
2. 分析代沟现象产生的原因;
3. 我对解决代沟的建议。
注意:
1. 可依据说明适当增加细节,使行文连贯;
2. 短文标题与开头已写好,不计入总词汇;
3. 词数:120左右。
Generation Gap
Nowadays there is often a lack of understanding between parents and children. This is called generation gap…
第六次质量检测英语答案
1-5 CABCA 6-10 BCABC 11-15ABACA 16-17 AB
18. stories 19. working long hours 20.Fruit and vegetables
21-25 DADBD 26-30 CCBAA 31-35 BBABB
36-40 DABCC 41-45 ABCDD 46-50 ABACB 51-55 DDBCA
56-59 ABBC 60-64 ADBDB 65-68 CABC 69-72 BAAA
73. Activity.
74. The teaching of reading will be successful./ The reading teaching will be a success.
75. Reading ability is something gained rather than taught. / Reading activity is
something gained by learning. w.w.w.k.s.5 u.c.o.m
76. Benefits of Daydreaming 77. Helping thinking
78. Learning from experiences 79. Planning for futures
80. A life window 81. Helping recognize difficulties
82. Helping find out 83. Features
84. Not predicted 85. improving creativities
Generation Gap
Nowadays there is often a lack of understanding between parents and children. This is called generation gap. Many parents say that their children are behaving unreasonably. Many a child complains that they can’t communicate with their parents. Their parents are unwilling to accept anything new.
I think the lack of communication between parents and children is the most obvious reason. As they grew up at different times, they have many different likes and dislikes. Besides, both of them are so busy with their work or study that they don’t spare enough time to exchange ideas. Therefore, misunderstanding arises between them.
To understand each other better, both parents and children need to make efforts. They should often communicate with each other and spend more time talking with each other. Only in this way will they bridge the generation gap.
理科综合训练十一(物理部分)
14.一个不计重力的带电粒子在匀强磁场中做匀速圆周运动。当它运动到M点时,恰好与一个原来不带电的静止粒子碰撞,在瞬间合为一体。那么它们碰撞后的轨迹应该是下列四图中的哪一个(实线是碰前的轨迹,虚线是碰后的轨迹。)
A. B. C. D.
15.雷蒙德?戴维斯因研究来自太阳的电子中微子(νe )而获得2002年度诺贝尔物理学奖。电子中微子可以将一个氯核转变为一个氩核,其核反应方程式为。已知Cl核的质量为36.95658u,Ar核的质量为36.95691u,e的质量为0.00055u,lu质量对应的能量为931.5MeV。根据以上数据,可以判断参与上述反应的电子中微子的最小能量为A.0.82MeV B.0.31MeV C.1.33MeV D.0.51MeV
16.有一种手电筒和台式电子钟都是用一节干电池工作的。将新电池装在手电筒中,经过一段时间的使用,当手电筒的小灯泡只能发出微弱的光而不能正常使用时,把电池取出来,用电压表测其两端电压,电压表示数略小于1.5V,把这节旧电池装在台式电子钟上却仍能使电子钟正常工作很长时间。根据以上现象,可判断下列说法中正确的是
A.旧电池的电动势比新电池的电动势小得多,旧电池的内电阻比新电池的内电阻相差不多
B.旧电池的电动势比新电池的电动势小得多,旧电池的内电阻比新电池的内电阻大得多
C.台式电子钟额定电压一定比手电筒额定电压小得多
D.台式电子钟正常工作的等效电阻一定比手电筒正常工作时的电阻大得多
17.图中实线表示两种介质的界面。光从介质1进入介质2的光路如图所示,由图可知
A.光在介质1中的波长小于在介质2中的波长
B.在介质1中光子的能量等于在介质2中光子的能量
C.光从介质1射到界面上,只要入射角足够大,就可能发生全反射
D.光在介质1中的传播速度小于光在介质2中的传播速度
18.一理想变压器给负载供电,变压器输入电压u=Umsinωt,如图所示,若负载增大,关于图中所有理想交流电表的读数及输入功率P的变化情况的说法中正确的是
A.V1、V2不变,Al增大、A2减小,P增大
B.V1、V2不变,A1、A2减小,P减小
C.V1、V2不变,A1、A2增大,P增大
D.V1不变,V2增大,A1减小,A2增大,P减小
19.一列向右传播的横波在某一时刻的波形如图所示,其中质点P、Q到平衡位置的距离相等,波的周期为T。关于P、Q两质点,英才苑以下说法正确的是
A.从该时刻起,P较Q先回到平衡位置
B.再经过T/4,两质点到平衡位置的距离仍相等
C.该时刻两质点的动量相等
D.该时刻两质点的加速度相同
20.1.如果将两个分子看成质点,当这两个分子各处于平衡位置时,它们之间的距离为r0,则该分子力大小F及分子势能大小Ep随分子间距离r的变化而变化的情况一定是
A.当r>r0时,r变大,F变小,Ep变小 B.当r>r0时,r变大,F变大,Ep变小
C.当r<r0时,r变小,F变大,Ep变小 D.当r<r0时,r变小,F变大,Ep变大
21.足够长的水平传送带始终以速度v匀速运动。某时刻放上一个小物体,质量为m,初速大小也是v,但方向与传动带的运动方向相反。最后小物体的速度与传送带相同。在小物体与传送带间有相对运动的过程中,滑动摩擦力对小物体做的功为W,小物体与传送带间摩擦生热为Q,则下面的判断中正确的是
A.W=mv2/2,Q=mv2 B.W=mv2,Q=2mv2
C.W=0,Q=mv2 D.W=0,Q=2mv2
22.⑴在“双缝干涉测光的波长”的实验中,测量装置如左下图所示,调节分划板的位置,使分划板中心刻线对齐某亮条纹的中心,此螺旋测微器读数为 mm。转动手轮,使分划线向一侧移动。到另一条亮条纹的中心位置,由螺旋测微器再进行一次读数。若实验测得第一条到第四条亮条纹中心间的距离为△x=
⑵某示波器工作时,屏上显示出如右上图所示的波形,且亮度较弱。要将波形由A图位置调节到B图的位置和波形,示波器面板上的旋钮需要调节的是
A.辉度旋钮 B.聚焦旋钮
C.辅助聚焦旋钮 D.竖直位移旋钮
E.Y增益旋钮 F.X增益旋钮
G.水平位移旋钮 H.扫描微调旋钮
I.衰减旋钮 J.扫描范围旋钮 K.同步开关
23.一块足够长的木板C质量
24.如图所示,半径为R、内壁光滑、内径很小的绝缘半圆管ADB固定在竖直平面内,直径AB垂直于水平虚线MN,圆心O恰在MN的中点,矩形区域MNPQ内有水平向右的匀强电场。一质量为m,电荷为q,可视为质点的带正电的小球从A点由静止滑入管内,从B点穿出后,通过B点正下方的C点,小球在C点处的加速度大小为
25.如图所示,固定在竖直平面内的竖直平行导轨间距L=
理科综合训练(十五)(物理部分)
14.如图所示,物块M通过与斜面平行的细绳与小物块m相连,斜面的倾角α可以改变。讨论物块M对斜面的摩擦力的大小,则一定有( )
A.若物块M保持静止,则α角越大,摩擦力越大
B.若物块M保持静止,则α角越大,摩擦力越小
C.若物块M沿斜面下滑,则α角越大,摩擦力越大
D.若物块M沿斜面下滑,则α角越大,摩擦力越小
15.地球公转周期和公转半径分别为T和R;月球的公转周期和公转半径分别为t和r,则太阳质量与地球质量之比为( )
A. B. C. D.
16.两上点电荷固定在A、B两点,它们带有等量正电荷,A、B连线的中点为O,如图所示。在这两个固定点电荷的电场中,在AO的中点C处有一个正点电荷P,由静止释放后沿直线AB运动,关于点电荷要的运动情况,有( )
A.P所受的电场力的合力方向总是指向O点
B.P沿直线AB做往复运动
C.从C到O点,P受到的电场力越来越小,电势能越来越小
D.从C到O点,P运动的加速度越来越小,动能越来越大
17. 如图,在倾角为α的固定光滑斜面上,有一用绳子拴着的长木板,木板上站着一个人,已知木板的质量是人的质量的2倍。当绳子突然断开时,人立即沿着板向上跑,以保持其相对斜面的位置不变,则此时木板沿斜面下滑的加速度为( )
A.sinα B.g sinα C.g sinα
D.
18.据报道,我国的“高温”下磁悬浮技术已取得较大突破,应用此技术所造的磁悬浮列车已进入试验阶段,走在世界前列。如图所示为磁悬浮的原理图,图中A是圆柱形磁铁,B是用“高温”超导材料制成的电阻率为零的超导圆环。将超导圆环B水平放在磁铁A上,它就能在磁力的作用下悬浮在A的上方空中。则以下判断正确的是( )
A.在B放入磁场的过程中,B将产生感应电流,当稳定后,电流消失
B.在B放入磁场的过程中,B将产生感应电流,当稳定后,电流仍存在
C.若A的N极朝上,则B中感应电流的方向为从下往上看的逆时针
D.若A的N极朝下,则B中感应电流的方向为从下往上看的逆时针
19.如图所示,M是一小型理想变压器,接线柱a、b接在电压u=311sin314t (V)的正弦交流电源上,变压器右侧部分为一火警报警系统原理图,其中R2为用半导体热敏材料制成的传感器,电流表A2为值班室的显示器,显示通过R1的电流,电压表V2显示加在报警器上的电压(报警器未画出),R3为一定值电阻。当传感器R2所在处出现火警时,以下说法中正确的是( )
A.A1的示数不变,A2的示数增大
B.V1的示数不变,V2的示数减小
C.V1的示数不变,V2的示数增大
D.A1的示数增大,A2的示数减小
20.如图所示,两只电流表A1、A2串联后连成图甲电路,调节R使A1满偏时,A2的示数为满偏的2/3,将A1和A2并联后连成图乙电路,重新调节R,当A2满偏时,A1的示数为满偏的1/3。已知A1的内阻为0.45Ω,那么A2的内阻为( )
A.0.1Ω B.0.3Ω
C.0.45Ω D.0.15Ω
21.民族运动会上有一个骑射项目,运运动员骑在奔驰的马背上,弯弓放箭射击侧向的固定目标。若运动员骑马奔驰的速度为,运动员静止时射出的弓箭速度为,直线跑道离固定目标的最近距离为d。要想在最短的时间内射中目标,则运动员放箭处离目标的距离应该为 ( )
A. B. C. D.
22、 (一)用螺旋测微器测圆柱体的直径时,示数如图甲所示,此示数为 mm。用分度为
(二)某兴趣小组为测一遥控电动小车的额定功率,进行了如下实验:
①用天平测出电动小车的质量为
②将电动小车、纸带和打点计时器按图甲所示安装;
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