对金属与酸反应问题考查的常见题型的分析
在对金属的化学性质考查中，其中金属与酸反应是中考的热点，但同时也是一个难点。现将中考化学中的这一知识点加以整理，供同学们参考。
金属与酸发生置换反应的条件：
（1）对金属的要求：必须是金属活动性顺序中排在氢以前的金属；
（2）对酸的要求：这里所指的酸并不是所有的酸，主要是指稀盐酸和稀硫酸。
金属与酸反应产生H2的规律：（1）质量为m，相对原子质量为M，化合价为+n（指在生成物中的化合价）的金属与足量酸反应，产生的氢气的质量x=nm／M
即：H2的质量=金属的质量×金属在化合物中的化合价／该金属的相对原子质量
（2）等质量的几种金属与足量酸反应产生的H2质量与该金属的 化合价／相对原子质量 的值成正比 ，该值越大，产生的H2质量越多，该值越小，产生的H2质量越小。
图表型综合题解题指要
漯河市2009年高中毕业班第一次适应性测试数学试题（理科）
本试卷分第Ⅰ卷（选择题共60分）和第Ⅱ卷（非选择题共90分），考试时间120分钟，满分150分。考试结束后，将本试卷和答题卡一并交回。
注意事项：
1．答题前，考生务必在答题卡上用黑色签字笔 将自己的姓名、准考证号填写清楚。请认真核对准考证号、姓名和科目。
2．选择题每小题选出答案后，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，在试题卷上作答无效。
参考公式：
如果事件A、B互斥，那么 P(A+B)=P(A)+P(B)
如果事件A、B相互独立，那么 P(A?B)=P(A)?P(B)
如果事件A在一次试验中发生的概率是P，那么n次独立重复试验中恰好发生k次的概率
球的表面积公式 
其中R表示球的半径
球的体积公式 
其中R表示球的半径
第Ⅰ卷（选择题 共50分）
江苏省扬州中学2008―2009学年第一学期期中考试
高 一 英 语 试 卷 08、11
考试时间120分钟，满分120分
第Ⅰ卷（选择题 共85分）
第一部分：听力（共两节，满分20分）
第一节（共5小题，每小题1分，满分5分）
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。
1．Why couldn’t the man come earlier?
A．Because he didn’t catch the school bus.
B．Because he couldn’t get on a public bus.
C．Because he had to wait twenty minutes for the school bus.
2．What did the man think he should do first?
A．Go to the drug store. B．Go to see a dentist. C．Take some medicine.
3．Which language of the following is the woman NOT able to speak?
A．Spanish. B．French. C．Italian.
4．Where are they talking?
A．In a post office. B．Through telephone. C．In Mary’s home.
5．What is the man asking the woman to do?
A．To tell him Jane’s telephone number. B．To get Jane on the phone for him.
C．To tell him Jane’s address.
第二节（共15小题，每小题1分，满分15分）
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。听每段对话或独白前，你将有时间阅读各个小题，每小题5秒钟；听完后，各小题将给出5秒钟的作答时间。每段对话或独白读两遍。
听第6段材料，回答第6、7题。
6．At what time does the flight from New York arrive in Beijing?
A．15：22 B．22：35 C．12：35
7．For how long does the flight stop over at Shanghai?
A．Fifty-five minutes. B．Forty-six minutes.
C．One hour and five minutes.
听第7段材料，回答第8、9题。
8．Where did Simon get to know Jo?
A．In a cinema. B．In a supermarket. C．In a party.
9．Why will Jo go to downtown this time?
A．Because she has to go to a party. B．Because she likes to see the movie.
C．Because she wants to buy something.
听第8段材料，回答第10至12题。
10．When will they go to Xi’an?
A．About June 16th. B．About July 16th. C．About June 6th.
11．For how long will they stay in Xi’an?
A．Less than one week. B．More than two weeks. C．Just one week.
12．Why is Monica going to Harbin again?
A．Because her parents live there. B．Because she does not like Xi’an.
C．Because she wants to visit her friends.
听第9段材料，回答第13至16题。
13．When does the writer always listen to the radio?
A．Every morning. B．At noon every day. C．Every evening.
14．How many wavelengths does the speaker’s radio have?
A．One. B．Two. C．Three.
15．Which of the following does the speaker tune to if he wants to listen to German?
A．Austria. B．Spain. C．Italy.
16．How many countries and languages does the speaker name in the text?
A．Seven and seven. B．Eight and seven. C．Eight and eight.
听第10段材料，回答第17至20题。
17．For what do the children in school learn their own language?
A．For their society.
B．For benefiting from what people in other countries have written and said.
C．For telling others clearly what they want and what they know.
18．Why do the children learn geography in school?
A．To be able to measure and count things in their daily life.
B．To know something about the world around them.
C．To understand what others tell them.
19．According to the speaker, what is the most important aim of going to school?
A．To learn how to learn. B．To learn facts.
C．To learn to do something new.
20．What is the best title for this talk?
A．The Purpose of Schools. B．School and Education.
C．The Importance to School.
第二部分：英语知识运用（共两节，满分35分）
第一节 单项选择题（共15小题，每小题1分，满分15分）
请认真阅读下面各小题，从题中所给的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． _____ Wednesday’s presidential debate (辩论) was _____ third and last between Democrat Barack Obama and Republican John McCain.
A． The; the B．The; a C．/; the D． A; /
22．If WGA decides your copy of XP or Vista is pirated(盗版的)， it paints your computer background black and warns you that your software is _____ to be an illegal(非法的) copy.
A．probable B．possible D．possibly C．likely
23． _____, I lost heart in English leaning, but my teacher often said to me, “Keep on working; you’ll succeed _____.”
A．At a time; in time B．At one time; in time
C．At a time; on time D．At one time; on time
24．We didn’t plan our art exhibition like that, but it _____ very well.
A．worked out B．tried out C．went on D．carried on
25．The manager says he needs an assistant that he can _____ to deal with the problems that may occur in his absence.
A．depend B．turn up C．count up D．count on
26．Why don’t you put the meat in the fridge? It will _____ fresh for several days.
A．be stayed B．stay C．be staying D．have stayed
27．_____ that evening was due to his ill health.
A．He failed to come B．That he failed to coming
C．His failure to come D．His failure in coming
28．Charles Babbage is generally considered _____ the first computer.
A． to invent B．inventing C．to have invented D． having invented
29．Police are now searching for a woman who is reported to _____ since the flood hit the area last Friday.
A．have been missing B．have got lost C．be missing D．get lost
30．He isn’t a diligent(勤奋的) student, for it is the third time that he has been late for school, ___?
A．is he B．hasn’t he C．has he D．isn’t it
31．Last summer they visited the Slender West Lake, _____ Yangzhou is famous in the world.
A．in which B．which C．for which D．what
32．The doctor advised Vera strongly that she should take a holiday, but _____ didn’t help.
A．it B．she C．which D．he
33．――How was the televised debate last night?
――Super! Seldom _____ so much media attention.
A．a debate attracted B．did a debate attract
C．a debate did attract D．attracted a debate
34． _____ be sent to work there?
A．Who do you suggest B．Who do you suggest that should
C．Do you suggest who should D．Do you suggest whom should
35．―― I’m thinking of the test tomorrow. I’m afraid I can’t pass this time.
――_____.
A．Go ahead B．Good luck C．No problem D．Cheer up
第二节 完形填空（共20小题；每小题1分，满分20分）
请认真阅读下面短文，从短文后各题所给的A、B、C、D四个选项中，选出最佳选项，并在答题卡上将该项涂黑。
One day, Raul was miles away from the small ranch（牧场）house in a large valley. 36 seemed to be all right, yet he felt strange and somewhat uneasy. The wind had picked up, and angry, dark clouds 37 across the sky. He could smell the rain coming. And it did. 38 , the lightning flashed through the clouds, nearly 39 Raul. The thunder（雷声）was so loud that he buried his 40 in his hands and rubbed his eyes. Then he heard it. Hoofbeats（蹄声）. He 41 . There before him stood a tall, white 42 . An old man stared down at him from its back.
“Wh-wh-who are y-y-you?” asked Raul. “My name is Gray Cloud,” the old man answered
43 .“Come with me.”
“Can’t say I…wait. I 54 my great-grandfather used to tell stories about a man called Gray Cloud. He died a long time ago. They say he was 55 by lightning during a terrible thunderstorm. Why do you ask?”
36．A．Something B．Everything C．Anything D．Nothing
37．A．dropped B．fell C．rolled D．covered
38．A．Suddenly B．Strongly C．Quickly D．Hardly
39．A．beating B．blinding C．burning D．touching
40．A．nose B．hair C．neck D．head
41．A．looked up B．woke up C．lay down D．sat down
42．A．tiger B．horse C．lion D．elephant
43．A．lazily B．angrily C．coldly D．slowly
44．A．natural B．common C．strange D．bad
45．A．around B．beside C．through D．above
46．A．yet B．for C．so D．or
47．A．walking B．leading C．heading D．returning
48．A．them B．themselves C．him D．himself
49．A．shook B．waved C．held D．took
50．A．gone B．left C．followed D．lost
51．A．see B．meet C．beat D．ask
52．A．waited B．thought C．worried D．excited
53．A．yard B．wind C．grass D．rain
54．A．believe B．consider C．doubt D．forget
55．A．defeated B．caught C．damaged D．struck
第三部分：阅读理解（共15小题；每小题2分，满分30分）
请认真阅读下列短文，从短文后各题所给的A、B、C、D四个选项中，选出最佳选项，并在答题卡上将该项涂黑。
A
There was a story many years ago of a school teacher―Mrs. Thompson. She told the children on the first day that she loved them all the same. But that was a lie. There in the front row was a little boy named Teddy Stoddard. He didn’t play well with the other children and he always needed a bath. She did not like him.
Then Mrs. Thompson got to know that Teddy was actually a very good boy before the death of his mother. Mrs. Thompson was ashamed of herself. She felt even worse when, like all her other students, Teddy brought her a Christmas present too. It was his mother’s perfume（香水）.
Teddy said, “Mrs. Thompson, today you smell just like my Mom used to.” After the children left she cried for at least an hour. On that very day, she stopped teaching reading, writing and math. Instead, she began to teach children.
Mrs. Thompson paid particular attention to Teddy. The boy’s mind seemed to come alive. The more she encouraged him, the faster he improved. By the end of the sixth grade, Teddy had become one of the smartest children in the class.
Six years went by before she got a mote from Teddy. He wrote that he had finished high school, third in his class, and she was still the best teacher he ever had in his whole life. He went to college. Mrs. Thompson got two more letters from him with the last one signed, Theodore F. Stoddard, M. D.（医学博士）.
The story doesn’t end there. On his wedding day, Dr. Stoddard whispered in Mrs. Thompson’s ear, “Thank you, Mrs. Thompson, for believing in me. You made me feel important and showed me that I could make a difference.”
Mrs. Thompson, with tears in her eyes, whispered back, “Teddy, you have it all wrong. You were the one who taught me that I could make a difference. I didn’t know how to teach until I met you.”
56．What did Mrs. Thompson find out about Teddy？
A．He often told lies. B．He was good at math.
C．He needed motherly care. D．He enjoyed playing with others.
57．In what way did Mrs. Thompson change?
A．She taught fewer school subjects.
B．She became stricter with her students.
C．She no longer liked her job as a teacher.
D．She cared more about educating students.
58．Why did Teddy thank Mrs. Thompson at his wedding?
A．She had kept in touch with him. B．She had given him encouragement.
C．She had sent him Christmas presents. D．She had taught him how to judge people.
B
Opening week specials at Munchies Food Hall
At the corner of Green and Brown Streets in the city
Monday 7th of January until Sunday, 13th of January 2008
Feast until you’re full ! Come down to Munchies this week to enjoy the special dishes on offer at all of our food outlets. Order from the following:
?Succulent chicken rice ?Spicy satay beef
?Delicious noodle dishes ?Plump park chops
|
Title: One’s weakness can become his (71) ▲