【导语】“红旗哥哥”通过精心收集,向本站投稿了8篇初二英语单元考点测试及答案,下面是小编整理后的初二英语单元考点测试及答案,欢迎您阅读,希望对您有所帮助。
- 目录
篇1:初二英语单元考点测试及答案
初二英语单元考点测试及答案
Unit25 What do you like?单元考点测试
听力部分
I.选出你所听到的单词.(每小题1分,共5分)
( )1. A. book B. look C. good D. cook
( )2. A. light B. right C. kite D. high
( )3. A. think B. thank C. things D. same
( )4. A. say B. stay C. play D. today
( )5. A. their B. chair C. wear D. hair
Ⅱ.选出你所听到的.短语或短句.(每小题2分,共10分)
( )1. A. do the housework B. do my homework
( )2. A. I like it a little. B. I like it a lot.
( )3. A. a glass of water B. some water
( )4. A. He writes a lot. B. He likes it a lot.
( )5. A. Miss Wang B. Mrs Wang
笔试部分
Ⅲ.找出画线部分读音与其他三个不同的单词.(每小题1分,共10分)
( )1. A. teach B. machine C. child D. Chinese
( )2. A. nice B. find C. kind D. uncle
( )3. A. teach B. speak C. read D. bread
( )4. A. stay B. close C. stand D. books
( )5. A. come B. mother C. home D. colour
( )6. A. bag B. has C. thank D. want
( )7. A. those B. their C. three D. with
( )8. A. who B. we C. week D. window
( )9. A. row B. brown C. down D. how
( )10. A. pen B. women C. spell D. mend
Ⅳ.写出下列动词的第三人称单数及其现在分词形式.(每小题1.5分,共15分)
1. watch_________ __________ 2. put____________ ___________
3. have__________ __________ 4. sit ___________ ___________
5. write_________ __________ 6. study _________ ___________
7. make__________ __________ 8. borrow ________ ___________
9. do____________ __________ 10. get __________ ___________
Ⅴ.选择填空.每小题2分,共20分)
( ) 1. They are talking ______________ friends.
A. like B. likes C. look D. looks
( ) 2. We all like ______________ TV.
A. watch B. see C. watching D. seeing
( )3. My friend Mary ____________ like oranges.
A. do B. don't C. does D. doesn't
( )4.―Do you like tea?
―Yes, I____________.
A. do B. don't C. does D. doesn't
( )5.__________he __________ many book?
A. Does; have B. Does; has
C. Do; have D. Is; has
( )6. I ____________ it can __________.
A. think; flies B. am not think; fly
C. don't think; flying D. don't think; fly
( )7. Is that window _________ or __________ now?
A. open; close B. opening; closing
C. open; closed D. opening; closed
( ) 8. Tom speaks ___________ Chinese.
A. many B. a little C. a lot D. very
( )9. Let's ___________ and play basketball.
A. go B. to go C. goes D.going
( )10.______________open the window, please.
A. Don't B. Do C. No D. Doesn't
Ⅳ.按要求转换下列句型.(每空2分,共30分)
1.Mary likes English very much.(改为否定句)
Mary______ _________English very much.
2.Mother does some housework every day.(改为一般疑问句)
____________mother ___________ some housework every day?
3.Mary and Kate are watching TV over there.(就画线部分提问)
___________ ____________Mary and Kate __________ over there?
4.Meimei likes bananas a lot.(改为一般疑问句)
_____________Meimei _____________ bananas a lot?
5.Open the door,please.(改为否定句)
_________ ________the door,please.
6.Peter is from America.(改为同义句)
Peter________ ________America.
7.Does he have any paper?(改为肯定句)
He_________ ___________paper.
Ⅶ.阅读理解.(每小题2分,共10分)
Wang Ling has a good friend. Her name is Kate. She is from America. Wang Ling and Kate are in the same class. They go to school five days a week. They stay at home on Saturdays and Sundays. Kate likes China and Chinese food. Her favourite (喜爱的)food is chicken,meat.At school they play games after class.
根据短文内容,判断句子的正(√)误(×).
( )1.Kate is an American girl.
( )2.They go to school on Saturdays and Sundays.
( )3.Kate doesn't like Chinese food.
( )4.Kate doesn't like chicken.
( )5.They often play games after class.
参考答案
Ⅰ.1. D 2. B 3. C 4. A 5. A
Ⅱ.1. A 2. A 3. B 4. B 5. B
Ⅲ.1. B 2. D 3. D 4. B 5. C 6. D 7. C 8. A 9. A 10. B
Ⅳ. 1. watches,watching 2. puts,putting 3. has,having 4. sits,sitting
5. writes, writing 6. studies, studying 7. makes, making 8. borrows, borrowing 9. does,doing 10. gets,getting
Ⅴ. 1. A 2. C 3. D 4. A 5. A 6. D 7. C 8. B 9. A 10. A
Ⅵ. 1. doesn't,like 2. Does,do 3. What are,doing 4. Does,like
5. Don't open 6. comes from 7. has some
Ⅶ. 1. √ 2. × 3. × 4. × 5. √
篇2:英语单元考点测试题
英语单元考点测试题
Unit24 Where are you from?单元考点测试
听力部分
I.选出你所听到的单词.(每小题1分,共10分)
( )1. A. cat B. cup C. can D.can't
( )2. A. how B. house C. horse D.hour
( )3. A. we B. week C. wear D.white
( )4. A. I B. eyes C. my D.mine
( )5. A. writ B. white C. why D.kite
( )6. A. car B. park C. party D.far
( )7. A. hi B. five C. white D.my
( )8. A. father B. mother C. brother D.sister
( )9. A. work B. walk C. talk D.short
( )10. A. big B. pig C. sit D.keep
Ⅱ.选出你所听到的句子.(每小题1分,共5分)
( )1.A. It's Sunday. B. It's Monday.
C. It's Wednesday. D. It's Saturday.
( )2. A. He's from England. B. He's from Japan.
C. She's from England. D. She's from Japan.
( )3. A. She's at home. B. She's at work.
C. He's at home. D. He's at work.
( )4. A. Jack is reading. B. Kate is writing.
C. Kate is reading. D. Jack is writing.
( )5. A. They teach us English. B. They teach us Chinese.
C. They teach us Japanese. D. They teach us French.
Ⅲ.听短文,填入所缺的`词.(每空1分,共5分)
Lucy and Lily are twins.They come from____________. They are ______________.They come to _____________ to study ______________. They love the people here very much.They teach Li Lei and me English and we teach them______________.
笔试部分
Ⅳ.找出下列单词中画线部分读音不同于其他三个的单词.(每小题1分,共10分)
( )1. A. near B. here C. where D. dear
( )2. A. down B. uncle C. under D. any
( )3. A. take B. name C. cake D. many
( )4. A. think B. father C. mother D. their
( )5. A. tea B. meat C. bread D. teacher
( )6. A. now B. how C. down D. borrow
( )7. A. Monday B. play C. say D. day
( )8. A. nice B. milk C. rice D. right
( )9. A. sure B. thanks C. glass D. see
( )10. A. comes B. goes C. does D. cakes
Ⅴ.按要求写出下列词的相应形式.(每小题1分,共10分)
1.American(复数)____________ 2.Japanese(国家名)___________
3.knife(复数)_____________ 4.says(音标)____________
5.watch(第三人称单数)____________ 6.teach(名词)____________
7.get(现在分词)_______________ 8.right(同音词)____________
9.friend(形容词)______________ 10.Australia(语言名)_____________
Ⅵ.选择填空.(每小题1分,共20分)
( ) 1. I often go to the park on ____________.
A. a Sunday B. Sunday C. this Sunday D. Sundays
( )2.—___________do you like the book?
—Very much.
A. What B. How C. What about D. How about
( )3. Here's a postcard ______________ Lily to her friend.
A. on B. to C. from D. for
( ) 4. Kate is ____________ Australian girl.
A. the B. a C. an D. from
( ) 5. Mr Green teaches ______________ English.
A. we B. his C. our D. us
( ) 6. The twins are __________ to us.
A. friend B. friends C. friendly D. great
( )7. Where ___________ he come from?
A. is B. do C. does D. be
( )8. Does your sister like_________?
A. American food B. America food
C. foods of America D. foods in America
( )9. My sister is studying _________ in _________.
A. Japan; Japan B. Japanese; Japanese
C. Japanese; Japan D. Japan; Japanese
( )10. I'd like some oranges. What __________ you?
A. about B. for C. to D. of
( )11. —Can you speak__________?
—Only _________________.
A. Japanese; little B. Japanese; a little
C. French; little D. England; a little
( )12. —__________do you like ___________ my new pencil?
—Its colour.
A. Why; about B. How; about
C. Where; for D. What; about
( ) 13. Can Lucy ____________ Chinese?
A. say B. speak C. tell D. talk
( )14.—Would you like some tea?
—_________________
A. Give me. B. Some water, please.
C. I do know. D. No, thanks.
( )15.—Is your friend a boy or a girl?
—_____________
A. Yes, he is. B. Yes, he is a boy.
C. He is a boy. D. Yes, she is a girl.
( ) 16. There are ___________ pears on the table.
A. some B. any C. much D. a little
( ) 17.___________ come from America.
A. American B. Americans C. English D. USA
( )18. Please _________ me how to write a postcard.
A. speak B. say C. talk D. tell
( )19. Your father is fine. Please _____________ worry.
A. don't B. isn't C. doesn't D. no
( )20. —___________do you go to see your parents?
—Two days a week.
A. How long B. How often C. How fast D.How soon
Ⅶ.按要求写句子.(每空2分,共30分)
1.Mary is from Australia.(同义句转换)
Mary_________ __________Australia.
2.Peter can speak a little Chinese.(就画线部分提问)
_____________ __________Chinese can Peter speak?
3.I like China very much.(就画线部分提问)
____________ _____________you like China?
4.I like the colour of your coat very much.(就画线部分提问)
_________ __________you like _____________ my coat?
5.Mr Wang is our English teacher?(同义句转换)
Mr Wang_________ ________English.
6.He goes to the park once a week.(同义句转换)
He goes to the park________ _________.
7、My mother is a doctor.(就画线部分提问)
____________ __________your mother?
Ⅷ.阅读理解.(每小题2分,共10分)
I am a middle school student. I have a friend Mary. She's thirteen. She comes from Canada. We are in the same class. She can speak Chinese, but only a little.Usually, she teaches me English, and I teach her Chinese. Her parents are both English teachers. My father is a Chinese teacher. My mother is a doctor.
根据短文内容,判断句子正(√)误(×).
( ) 1. Mary is a student.
( ) 2. Mary can speak Chinese very well.
( ) 3. We are in different classes.
( ) 4. Her father is a doctor.
( ) 5. My father is a teacher.
参考答案
Ⅰ. 1. B 2. A 3. B 4. B 5. C 6. B 7. D 8. C 9. C 10. D
Ⅱ. 1. B 2. A 3. B 4. C 5. B
Ⅲ. America,Americans,China,Chinese,Chinese
Ⅳ. 1. C 2. B 3. D 4. A 5. C 6. D 7. A 8. B 9. A 10. D
Ⅴ. 1. Americans 2. Japan 3. knives 4. [sez] 5. watches 6. teacher 7.getting 8. write 9. friendly 10. English
Ⅵ.1. D 2. B 3. C 4. C 5. D 6. C 7. C 8. A 9. C 10. A 11. B
12. D 13. B 14. D 15. C 16. A 17. B 18. D 19. A 20. B
Ⅶ.1.comes from 2. How much 3. How do 4. What do,about 5. teaches us
6. every week 7. What is
Ⅷ. 1. √ 2. × 3. × 4. × 5. √
篇3:九年级英语第1单元基础测试习题及答案
九年级英语第1单元基础测试习题及答案
一. 词组翻译(30分)
1.犯错,出错 ______________ 2. 结束 _____________ 3. 根本不 _____________ 4. 以后,随后 ____________ 5. 害怕去做 ______________
6. 嘲笑 _______________ 7. 做笔记 _______________ 8. 查阅 _____________ 9. 编造 ______________ 10. 处理 ______________ 11. 生?? 的气 __________ 12. (指时间)过去,消逝 ________________ 13. 尽力做?? _____________ 14. 突然中止,中断 _________________ 15. 没关系 ________________
二.单项选择(10分)
( )1.---- How do you study ______ a test? ---- I study ______ working with a group.
A: for by B: by in C: for from
( )2.Have you ever ______ with a group?
A: study B: studying C: studied
( )3.My sister said she studied by ________ English-language videos.
A: watch B: watching C: watched
( )4.What about _______ the textbook?
A: reading B: read C: to read
( )5.It improves my _______ skills
A: spoken B: speak C: speaking
( )6.I have trouble ________ the new words.
A: memorize B: memorizing C: to memorize
( )7.I don’t know how ________ commas.
A: use B: to used C: used
( )8.Miss Li regards all his students _______ his children.
A: as B: for C: to
( )9.If you don’t know how to spell new words, look them _____ in a dictionary.
A: up B: for C: after
( )10.The small boys decided ________ to each other.
A: not talk B: not talking C: not to talk
三.完形填空 (10分)
I like English very much. I think English is very important and . Here are my
opinions of English well.
I think there are many ways learn English. For example, asking the teacher help is very helpful. One of my good said he had trouble English. His English is very poor. So he reads aloud every morning. Now he can speak English very well. Watching English shows on TV can also be helpful. You can learn many words them. Remember “Where there is a , there is a way.” Believe you can do it .
( )1.A: useful B: use C: used
( )2.A: learn B: learns C: learning
( )3.A: to B: for C: of
( )4.A: to B: for C: of
( )5.A: friend B: a friend C: friends
( )6.A: learn B: learning C: to learn
( )7.A: speak B: spoken C: speaking
( )8.A: by B: in C: from
( )9.A: shall B: can C: will
( )10.A: well B: good C: bad
四.阅读理解(20分)
This week we asked students at New Star High School about the best ways to learn more English. Many said they learnt by using English. Some students had more specific suggestions. Lillian Li, for example, said the best way to learn new words was by reading English magazines. She said that memorizing the words of pop songs also helped a little. When we asked about studying grammar, she said, “I never study grammar. It’s too boring.”
Wei Ming feels differently. He’s been learning English for six years and really loves it. He thinks studying grammar is a great way to learn a language. He also thinks that watching English movies isn’t a bad way because he can watch the actors say the words. Sometimes, however, he finds watching movies frustrating because the people speak too quickly.
Liu Chang said that joining the English club at school was the best way to improve her English. Students get lots of practice and they also have fun. She added that having conversations with friends was not helpful at all. “We get excited about something and then end up speaking in Chinese,” she said.
A) 阅读文章,判断下列句子是否正确,正确的写 “T”,错误的写 “F”
( )1.Lilian Li thought the best way to learn new words was by memorizing them.
( )2.Lilian Li never studied grammar.
( )3.Wei Ming has learned English for seventy-two months.
( )4.Joining the English club at school was Liu Chang’s best way to improve her English.
( )5.Liu Chang thought having conversations with friends was helpful.
B) 根据日历选择正确答案
( )1. What activity does the Community Center have on Tuesday?
A: Chess Club Meeting B: Bing go C: Movie
( )2. When is the sewing class?
A: on Monday B: On Friday C: On Wednesday
( )3. What time does the movie start on January 9?
A: 9 pm B: 8 pm C. 10-11 pm
( )4. If you want to go to Shopping Trip, when can you go?
A: On Jan 11 B: On Tuesday 7-9 pm C. On Jan 27
( )5. What is happening on Jan 20?
A: Dance Class B: Dinner and Dancing C: Shopping Trip
五.翻译句子(10分)
1.I study by reading the textbook.
______________________________________________________________.
2.I can’t pronounce some of the new words.
_______________________________________________________________.
3.It wasn’t easy for me to understand the teacher when she talked.
_______________________________________________________________.
4.He thinks making flashcards is a good way to learn English.
_______________________________________________________________.
5.Tom said studying grammar is not helpful at all.
________________________________________________________________.
六.根据中文完成句子(10分)
1.我的叔叔经常询问我的`学习情况。
My uncle often ________ me _________ my study.
2.他说最好的学习新单词的方法是通过看英语杂志。
He said the best _______ _______ learn the new words was _______ reading English magazines.
3.听磁带是一种好的学习英语的方法。
________ _______ _________ is a good way to study English.
4.他们以中文结束了对话。
They ______ ______ ________ in Chinese.
七.写作(10分)
以“How do I study English?”为题写一篇小短文。可以写你学习英语的困难以及学习方法。
要求:不少于30单词;字迹工整;
How do I study English?
_____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
答案
一.词组翻译(30分)
1. make mistakes 2. end up 3. not at all 4. later on 5. be afraid to 6. laugh at 7. take notes 8. look up 9. make up 10. deal with 11. be angry with 12. go by 13. try one’s best 14. break off 15. it doesn’t matter 二.二.单项选择(10分)
1---5 A C B A C 6—10 B B A A C
三.完形填空 (10分)
1—5 A C A B C 6—10 B B C C A
四.阅读理解(20分)
1----5 F T T T F 1---5 B C B C B
五.翻译句子(10分) (略)
六.根据中文完成句子(10分)
1. asks about 2. way to 3. listening to tapes 4. end up
七.写作(10分) (略)
篇4:英语单元测试题及答案
英语单元测试题及答案
一、语音知识 (5%)
从A、B、C、D 中找出其划线部分与所给单词的划线部分读音相同的选项,What a good, kind girl! 单元测试(A卷)。
[ ]1. cool A. look B. cook C. football D. soon
[ ]2. brother A. fifth B. weather C. thank D. throw
[ ]3. wear A. near B. pear C. hear D. dear
[ ]4. really A. idea B. great C. bread D. breakfast
[ ]5. cloudy A. country B. house C. young D. enough
二、单词读音 (10%)
找出每组单词中划线部分的读音含有所给音标的`单词。
[ ]6. [z] A. horses B. west C. houses D. sure
[ ]7. [i] A. cabbage B. again C. wife D. pea
[ ]8. [ ] A. pleasure B. sugar C. sir D. south
[ ]9. [i:] A. before B. below C. maybe D. busy
[ ]10. [d ] A. watch B. which C. match D. sandwich
三、词组英译 (10%)
将下列词组翻译成英语。
11. 最好干什么事 ______ 12. 沿着这条街走 _________
13. 让我想想 __________ 14. 去某地的路 ___________
15. 在路边 ____________
四、句型转换 (15%)
根据括号内的要求,改写句子,每个空格内只填一个单词,使句子意思完整与正确。
16. You can take a No. 72 bus. (对划线部分提问)
______ bus ______ you ______?
17. You'd better ask the policeman. (改为否定句)
You'd ______ ______ ask the policeman.
18. My address may be in one of my pockets. (对划线部分提问)
______ ______ your address ______?
19. He knows the way to North Street Hospital. (改为一般疑问句)
______ he ______ the way to North Street Hospital?
20. They went swimming with their friends. (对划线部分提问)
______ ______ they ______ swimming with?
五、单项选择 (30%)
从A、B、C、D 四个选项中,选出可以填入空白处的正确答案。
[ ]21. Sorry, I don't know the way to ______.
A. North Street Hospital B. north street hospital
C. Street North Hospital D. Hospital North Street
[ ]22. ______ matter, Tom?
A. What is B. What is a
C. What's the D. How is the
[ ]23. ______ bus shall we take?
A. What a B. Where C. Which a D. Which
[ ]24. The little girl is ill ______.
A. in a hospital B. in the hospital
C. in hospital D. in hospitals
[ ]25. ______ the end of the road you can find the post office.
A. On B. At C. By D. In
[ ]26. Go down this road and ______ the first ______ on the right.
A. take...turn B. take...turning
C. taking...turn D. taking...turning
[ ]27. The No. 1 bus ______ you to the shoe factory.
A. will take B. take C. catch D. bring
[ ]28. Granny is very happy ______ her son.
A. find B. to look C. seeing D. to see
[ ]29. I don't know how ______ the bus station.
A. reach to B. reach
C. to reach D. to reach to
[ ]30. Next Sunday I may go ______ my friends.
A. swimming with B. swim and
C. skate with D. shating and
六、阅读理解 (30%)
先阅读下列短文,然后根据文章内容判断正 (T),误 (F),英语试题《What a good, kind girl! 单元测试(A卷)》。
Jack went to school to study history (历史), but when he finished his first year, he didn't pass the exam (考试及格) and the teacher said to him, “You have to leave school.”
When the boy's father heard this news, he was very worried. He came to the school to see the teacher. He found the teacher in the office and asked the teacher to let Jack go on with his studies the next year.
“He is a good boy. He always does well in history.” said Jack's father,“ and if you let him pass the exam this time, he'll do better next year and pass the exam. ”Oh, no, that's not right!“ answered the teacher, ”Do you know, last month I asked him when Napoleon (拿破仑) died (死), and he did not know.“
”Please sir, give him another chance (机会),“ said Jack's father, ”You know we don't have any newspapers in our house, so nobody in our family knew that Napoleon was ill.“
[ ]31. The boy in this story was good at history.
[ ]32. The boy's father went to the teacher's office and talked with him about his son.
[ ]33. The teacher let all his students pass the exam.
[ ]34. After that, the teacher let the boy pass the exam.
[ ]35. The boy's father was even poorer (弱、差) than his son in history.
参 考 答 案
一、1. D 2. B 3. B 4. A 5. B
二、6. C 7. A 8. B 9. C 10. D
三、11. had better do something 12. go along this street 13. let me see 14. the way to some place 15. at the side of the road
四、16. Which...can...take 17. better not 18. Where may...be 19. Does...know 20. Whom did...go
五、21. A 22. C 23. D 24. C 25. B 26. B 27. A 28. D 29. C 30. A
六、31. F 32. T 33. F 34. F 35. T
篇5:初二英语测试题及其答案
初二英语测试题及其答案
一. 听力(20分)(略)
二. 单项选择(20分)
21. ——Are you going to Beijing by ______ train?
——No. I’m taking ______ car.
A. /; a B. a; the C. /; / D. the; a
22. My best friend Wang Ying said she would come ______ Saturday morning.
A. in B. to C. on D. at
23. This physics problem is kind of difficult. Not______can work it out.
A. everybody B. anybody C. somebody D. nobody
24. Jack and his friends often play sports or watch movies for ______ on weekends.
A. exercise B. wishes C. hobbies D. fun
25. ——We are going to the beach next month.
——That______great.
A. hears B. listens C. sees D. sounds
26. ——Gina is ill in hospital. She can’t come to school today.
——________.
A. I don’t think so
B. It doesn’t matter
C. I’m sorry to hear that
D. That’s not a good idea
27. I have ______ things to do. I can’t spend ______ time playing computer games.
A. too much; too many
B. too much; too much
C. too many; too much
D. too many; too many
28. I feel very ______. Please give me some water.
A. thirsty B. relaxed C. sad D. angry
29. He doesn’t feel well, so he ______ stop smoking.
A. has to B. doesn’t C. likes to D. have to
30. Thanks a lot for______ me ______ my English.
A. help; on B. helping; with
C. to help; about D. helping; to
31. I didn’t know your sister came back_____I met her in the street.
A. ago B. when C. until D. after
32. ——Would you like to visit the museum this Saturday? ——________.
A. Yes, please B. Sure, I’d love to
C. Yes, I would D. No, I wouldn’t
33. His mother often makes him ______ TV after supper.
A. watch B. watching C. to watch D. watches
34. ——How are you feeling today?
——Much ______. I think I can go to school tomorrow.
A. good B. well C. better D. best
35. There ______ rainy and windy in Yuncheng tomorrow.
A. will have B. will has C. is having D. will be
36. ——Did you go to the beach with them yesterday?
——No. I ______ go there. You know, I can’t swim.
A. sometimes B. often C. never D. usually
37. ——Tomorrow is Sunday. Are you going swimming?
——I’m not sure. It ______ the weather.
A. looks like B. waits for
C. looks after D. depends on
38. ——______ do you have a speech contest?
——Twice a year.
A. How long B. How much
C. How many D. How often
39. It’s very kind of you to ______ so much time showing me around your school.
A. spend B. take C. cost D. have
40. ——Tina, you didn’t come to school yesterday. ______? ——I had a high fever.
A. How about you
B. What was the matter
C. Where did you go
D. What do you do
三. 完形填空(10分)
Jack planned to celebrate (庆祝) his birthday in the afternoon. He would like to celebrate his birthday party in his 41 . As a middle school student, it was his first time to do so. He wanted 42 to know that he was a middle school student! Mike invited (邀请) his classmates to his party. His classmates 43 him many birthday presents (礼物). His mother made a big birthday cake and a lot of delicious food, and Jack 44 them to school. Some of Jack’s classmates played games and some ate food. Jack 45 very happy.
When the party was nearly (几乎) over, Mrs White, Jack’s teacher, came to the classroom 46 a small beautiful box in her hand. Jack was very 47 . “Happy Birthday, Jack.” Jack was so happy that he 48 know what to say. Mrs White said, “ 49 didn’t you tell me? I’d like to come here to celebrate the first birthday party in 50 class. Here’s my present for you.”
41. A. home B. office C. classroom D. restaurant
42. A. others B. another C. other D. they
43. A. thanked B. watched C. liked D. gave
44. A. took B. bought C. taught D. stopped
45. A. improved B. felt C. practiced D. talked
46. A. with B. on C. to D. in
47. A. opposite B. early C. boring D. surprised
48. A. doesn’t B. can’t C. didn’t D. isn’t
49. A. What B. Why C. Where D. When
50. A. his B. her C. their D. our
四. 阅读理解(20分)
A
Mr White works in an office. He’s very busy and has no time to have a good rest. Every evening, when he comes back from his office, he’s always tired and wants to go to bed early. But his wife often has a lot of interesting things to tell him after dinner. She doesn’t stop talking until she falls asleep (入睡). But it’s usually too late and Mr White has to get up early in the morning when she is still sleeping.
One day Mr White felt terrible and couldn’t go to work. He decided to go to see a doctor. Mrs White went to the hospital with him. Before her husband said what was the matter with him, the woman told the doctor all. The doctor wrote out a prescription (处方). When Mrs White took the medicine to the doctor’s room, the doctor said to her, “The bottle of medicine is for your husband and the pills (药片) are for you.”
“For me?” the woman said in surprise. “I’m fine. I don’t need any medicine!”
“I don’t think so, madam,” said the doctor. “They are sleeping pills. Your husband will be all right soon if you take them.”
51. Mr White ______.
A. has time to have a good sleep
B. is busy but he can have a good sleep
C. isn’t tired and doesn’t like to go to bed early
D. can’t have a good rest because he’s too busy
52. Mr White’s wife ______ every evening.
A. works late B. writes things
C. keeps talking late D. watches TV late
53. Mr White has to get up when his wife is sleeping in the morning because ______.
A. he can’t fall asleep
B. he has to go to work
C. he doesn’t want to sleep
D. his wife asks him to get up
54. One day Mr White couldn’t go to work because ______.
A. he was ill
B. his wife was ill
C. his wife didn’t let him go
D. he didn’t want to go to work
55. The sentence “Your husband will be all right soon if you take them.” means Mr White will soon be all right if ______.
A. Mr White takes the pills
B. Mr White takes the bottle of medicine
C. Mrs White takes the bottle of medicine
D. Mrs White stops talking too much at night
B
Some people like to have friends who are different from them. Others like to have friends who are similar to them. What kind of friends do you want for yourself?
Kate
Join Date: March, 2011
Location: the United Kingdom
I like to have friends who are like me. Both my best friend Vades and I like traveling. We went to Italy last month and stayed there for a week. Next month we want to go to Paris. However, Vades is more athletic than me.
Ditlady
Join Date: April, 2011
Location: Canada
I like to have friends who are like me. It can be very helpful. I’m a little quiet and my good friend Libby is quiet, too. Sometimes I don’t know what to do with my problems and she can tell me what I should do, because she knows about me better than people who are different from me.
Harbinger
Join Date: May, 2011
Hi, everyone! I had a cold last week and just got here. In my opinion, it is important to have both kinds of friends. That makes your life more interesting.
56. Where is Kate going next month?
A. To the USA. B. To the UK.
C. To Italy. D. To France.
57. What’s Libby like?
A. She’s as beautiful as Ditlady.
B. She’s more outgoing than Ditlady.
C. She’s as quiet as Ditlady.
D. She’s more athletic than Ditlady.
58. What was the matter with Harbinger last week?
A. He had a cold. B. He had a headache.
C. He had a fever. D. He had a toothache.
59. What kind of friends does Harbinger like to have?
A. Those who are different from him.
B. Those who are the same as him.
C. He doesn’t like to make friends.
D. He likes to have different kinds of friends.
60. What does the underlined word “similar” mean?
A. 一致的 B. 相似的 C. 友好的 D. 简单的
篇6:初二英语下册练习Unit 10单元附答案
初二英语下册练习Unit 10单元(附答案)
Unit10口语会话场
根据对话内容,填适当的句子补全对话。
A:Goodmorning.
B:Goodmorning.
A:(1)________
B:Yes,itis.Peoplealwaysfeelcomfortableonafineday.
A:(2)________
B:Yes,Ihavebeentoaconcertbefore.
A:Bytheway,(3)________?
B:Ilikeclassicalmusicbest.Whataboutyou?
A:Ipreferpopmusicbecauseitmakesmeenergetic.(4)________
B:Well,Ilikepopmusic,too.ButIhaterockmusic.Itistoonoisy.
A:(5)________Itisexciting.
参考答案:
1.It is a fineday,isn’t it?/What a fineday,isn’t it?
2.Have you ever been to a concert before?3.what is your favorite music4.What do you think of other kinds of music?5.I don’t think so./Idon’t agree with you.
篇7:初二物理单元测试题附带答案
第I卷物理(选择题 共39分)
1.小明身高175 cm,质量65 kg,针对他的身体条件,下列估测最接近实际的是( ).
A.他的体积约为65 dm3
B.他的正常步幅约为2m(步幅:走路时,两脚尖之间的距离)
c.他的“1柞”约为40 cm(柞:念zha,张开手,拇指尖到中指尖之间的距离)
D.他的“1庹”约为3 m(庹:念tu6,两臂左右平伸时,两手中指尖之间的距离)
2.测量紧密排绕在铅笔上的细铜丝的直径,如图所示。以下说法中正确的是( )。
A.所用刻度尺的分度值为l cm
B.读取图中刻度尺的示数时,视线应与尺面平行
C.测得图中线圈的总长度为15 cm
D.实验中需要数所绕铜丝的圈数
3.在学校“运用物理技术破案”趣味游戏活动中,小明根据“通常情况下,人站立时身高大约是脚长的7倍”这一常识,可知留下图中脚印的“犯罪嫌疑人”的身高约为( )
A.1. 65 m B.1.75 m
C.1. 85 m D.1.95 m
4.校园安全问题一直是社会关注的热点问题,交警部门在校园和校园附近安放了如图所示的四个标志,其中表示“限速5公里”的是( )
5.如图所示为A、B两小车向右运动过程的频闪照片.它表示两个小球在相等的时间间隔所在的位置,则对A、B两小车的运动情况判断正确的是( ).
A.小车A做变速运动,小车B做匀速运动
B.小车A做匀速运动,小车B做变速运动
C.小车A、B都做匀速运动
D.小车A、B都做变速运动
6.如图是推出的铅球在空中运动过程中速度”随着时间t变化的图象,正确的是( )
7.宋代诗人陈与义有诗“枫花两岸照船红,百里榆堤半日风,卧看满天云不动,不知云与我俱东”.诗中所涉及的“卧看满天云不动”是因为( )
A.诗人以自己为参照物看云 B.诗人的浪漫情怀所致
C.云本来就不动 D.云向西运动
8.一列队伍长40m,经过全长为80m的桥,队伍过桥共用了1min,若队伍前进可看作是匀速直线运动,则这支队伍行进速度为( )
A.2m/s B.1.3m/s D. 0.67m/s D.2.3m/s
9.下列长度单位换算正确的是( )
A.18cm=18cm÷100=0.18m B.18cm=18cmx =18m
C.18cm=18÷(100m)=0.18m D.18cm=18x =0?18m
10. 某物体第1S运动1m,第2秒运动2米,第3秒运动3米,则 ( )
A、物体做匀速运动 B、物体作加速运动
C、物体第2秒的速度是1.5米/秒 D、物体3秒的速度是3米/秒
11.物理学中将物体在单位时间内速度的增加量定义为加速度。依据该定义,若某物体在t时间内速度从v1增加到v2,则加速度为(V1 – V2)/t。现有一小球从静止开始以3m/s2的加速度加速运动2s,则2s末小球的速度为( )新课标 第一网
A. O B.2 m/s C.3 m/s D.6 m/s
12.如图所示,关于长度的测量,下列说法正确的是( )
A.两个人测量方法都正确,他们测同一物体的长度,测得的数值一定相同
B.两个人测同一物体的长度,测得的数值不同,其中有一人测量方法是错误的
C.两个人测同一物体的长度,测得的数值不同,两个人的测量方法都正确
D.一个人测量方法正确,读数是2.2cm;多次测同一物体的长度,测得的数值不一定相同
13.下列关于误差的说法中正确的是 ( )
A.测量时出现误差,则说明一定是出了差错
B.在测量时,多测量几次,取平均值可以减小误差
C.误差是难以避免的,所以减小误差是不可能的
D.改进实验方法和采用精密的测量工具
第Ⅱ卷物理(非选择题,共61分)
一、填空题:每空2分,共22分
14.如图所示,兔子和乌龟在全程为s的赛跑中,兔子跑到树下用时t1,树下睡觉用时t2,醒后跑完剩卞的路程用时t3,小兔子跑完全程的平均速度是 ,团体赛中,乌龟驮着兔子水中游,兔子背着乌龟地上跑,实现了双赢。兔子在乌龟背上说:“我是静止的,又可以悠闲的睡觉了!”兔子说自己是静止的是以 为参照物的。
15.物体做直线运动,前一半路程的平均速度是30m/s,后一半路程的平均速度是60m/s,则物体在整个运动过程中的平均速度是 m/s
16.(1)为了规范交通,在很多重要的路段都安装了超速自动抓拍装置.如图所示,在车道上相隔一定距离的路面下分别安装一个矩形线圈,线圈和拍摄装置的控制电路相连接,汽车通过线圈上方的路面时,由于电磁感应会引起控制电路的电流变化;从而实现自动抓拍,如果某一路段要求时速不超过50km/h,当汽车先后通过两个线圈上方的时间间隔小于0.5s时,拍摄系统就会被激活而拍下超速汽车的照片,否则将不会激活拍摄系统.根据这一要求,两个线圈的距离应设计为 m(结果取整数).(2)双休日自驾车外出郊游,在行驶的过程中,善于观察的小唐同学看到汽车上有一个速度和路程的表盘,示数如图甲所示,该车匀速行驶了一段时间后,表盘示数变为图乙所示,那么这段时间为 h.
17.如图所示,请你写出圆柱体的直径是 cm。张阳同学跑1000米的成绩如图,则该同学的成绩为 。
18.“逆水行舟,不进则退”这句俗语中“进”是以 为参照物,“退”又是以 为参物.
19.一列车正以18 km/h的速度由北向南在雨中行驶,坐在窗口的乘客看到雨正好竖直下落至地面。这个现象说明车窗外刮的是 风,风速是 m/s。
二、解答与探究题
(一)作图题:每小题2分,共6分
20.如图所示,在图中作出以2m/s作匀速运动物体的路程一时间图象。
21. 在图中画出物体以3m/s作匀速运动时的速度一时间图象。
22.汽车追尾是高速公路上常发生的交通事故,其重要原因遇到意外情况时不能立即停下来,研究发现,司机从看到情况到踩刹车需要一段时间,这段时间叫反应时间,在反映时间内汽车要保持原速前进一段距离,这段距离叫反应距离,从踩刹车到车停止汽车还要前进一段距离,这段距离叫制动距离如图4所示,下表是一个机警的司机驾驶一辆保养得很好的汽车,在于燥的水平公路上以不同的速度行驶时,测得的反应距离和制动距离
原行驶速度v/km?h-1 反应距离s1/m 制动距离s2/m
60 11 20
80 15 34
100 19 54
请在图中画出从司机看到情况开始计时,到汽车停止的这段时间内,汽车运动的v一t图像.(不需准确描点)
(二)计算题:每小题6分,共12分
23.小李开车时看到如图甲所示的交通标志牌,此时汽车内的速度计如图乙所示。
(1)你能从交通标志牌上了觯哪些信息?
(2)若小李此时汽车的速度大小如图乙速度计所示,汽车此时是否超速?若以这样的车速行驶,再经过多长时间能到达香山出口?
(3)在遵守交通规则的前提下,此汽车到香山出口至少需多长时间?
(4)你对小李有什么忠告?
24.一名同学骑自行车从家路过书店到学校上学,家到书店的路程为1 800 m,书店到学校的路程为3 600 m当他从家出发到书店用时5 min,在书店等同学用了1 min,然后二人一起又经过了12 min到达学校。求:
(1)骑车从家到达书店这段路程中的平均速度是多少?
(2)这位同学从家出发到学校的全过程中的平均速度是多大?
(三)实验探究题:第25题9分,第26题8分,第27题4分,共21分
25.小明在“测小车的平均速度”的实验中,设计了如图所示的实验装置:小车从带刻度(分度值为1 cm)的斜面顶端由静止下滑,图中的圆圈是小车到达A、B、C三处时电子表的显示(数字分别表示“小时:分:秒”)
(1)该实验是根据公式____进行速度计算的。
(2)实验中为了方便计时,应使斜面的坡度较 (填“大”或“小”)。
(3)请根据图中信息回答SAB____cm tBC= s;
VAB=_ m/s; VBC____ m/s。
(4)由实验看出,小车在下滑过程速度越来越 ,是在做____运动。
(5)实验前必须学会熟练使用电子表,如果让小车过了A点后才开始计时,则会使所测AC段的平均速度vAC(偏 (选填“大”或“小”)。
26.小刚是班上有名的短跑运动员。有一天,大家为小刚跑步的速度是否比小玲骑自行车速度更快的事争论起来,大家吵着要在操场上进行比赛。正在这时,小玲说,如果比赛时间足够长,我的速度肯定比小刚快;如果比赛的距离太短,我的速度可能比他的慢。
(1)小玲所指的速度是什么速度?
(2)请你设计一个比赛方案,来证明小玲判断的对错;
(3)如果小刚与小玲因故不能同时到达比赛场地进行比赛,这场速度的比较还能进行吗?
(4)以下两表是体育老师为小刚、小玲测试的成绩表,请你分析表中的数据,回答以下问题:
表1:小刚跑步的成绩表
路程/m 10 20 50 80 120 160 200 240 300 400
时间/s 2.8 5.1 8.6 11.5 18.8 30.3 45.2 58.5 82.5 122.5
表2:小玲骑自行车的成绩表
路程/m 10 20 50 80 120 160 200 240 300 400
时间/s 5.0 7.5 10.0 15.0 26.0 34.2 42.0 50.0 62.0 82.0
①在400 m全程中,小刚和小玲的平均速度分别是多少?
②从表中可以看出,至少在多少路程内,小刚的平均速度比小玲的平均速度大?
③从表中可以看出.至少在多少秒以后,小玲的平均速度比小刚的平均速度大’
④我们把表格中两个相邻的数据之间的路程称为一个阶段。问:从起点开始,在哪一个
路段小玲的速度第一次超过小刚在这个路段的速度?
27.测火车速度
提出问题 国庆节期间,小芳和同学们乘火车从襄樊回重庆,当火车行至襄渝铁路大巴山冷水隧道前一段平直轨道时,小芳对其他同学说:“我们能否用手边的器材估测火车的速度?”
进行实验 许多同学参加了测量,他们各自的做法如下:
(1)小芳听到列车上广播:“前方S=3 km便是大巴山冷水隧道。”恰好此时火车鸣笛,小芳测得经t秒后听到从大巴山反射来的回声后说:“我已能算出火车的速度。”
(2)坐在窗旁的小军不动声色,看着窗外每隔S=100 m的电线杆,并数着自己脉搏跳动的次数,数出每通过两根电线杆时自己脉搏跳动了N次,小军突然宣布:“我已测出火车的速度。”设小军自己平时每分钟脉搏跳动n次。
(3)小强跑到列车驾驶室,回来后笑着说:“我已知道了火车的速度。”
(4)小慧看着自己的手表,问了一下乘务员每根铁轨长L,数出t秒内铁轨响了N次,小慧说自己的方法可以测火车的速度。
实验方法交流
小芳测量速度的表达式: ;小军的测量速度的表达式: ;
小强测量方法是 ;小慧的测量方法是 ;
附加题:小明注意家里摆钟(图甲)的钟摆在有规律地摆动,经认真观察发现钟摆来回摆动一次的时间刚好是1秒,就想:是不是所有的摆来回摆动一次舳时间都是1秒呢?于是,他请教了物理老师,知道摆来回摆动一次的时间叫做周期,在老师的指导下他设计如图11乙所示的单摆(即细绳下系一小钢球)进行探究.实验数据记录如下表
实验次数 1 2 3 4 5 6 7 8
摆长L/m 0.30 0.40 0.50 0. 60 0.70 0 .80 0.90 1.00
周期T/s 1.1 1.3 1.4 1.5 1. 7 1.8 1.9 2.0
周期平方T2/s2 1.2 1.6 2.O 2.3 2.9 3.2 3.6 4.0
(1)从上表中数据可知,单摆的摆长L越长,周期,越 (选填“长”或“短”).
(2)请根据表中数据在图中作出单摆周期的平方T2与摆长L的关系图像.
(3)分析如图所示图象,可知实验中用的单摆T2与L成 关系.
(4)由表中实验数据可知,单摆来回摆动一次时间比较短,直接测量摆动一次的时间误差比较大,你认为小名为了减小误差是怎么办的? 。
(5)生活中若摆钟走慢了,应如何调整摆钟的长度? 。
参考答案:
1A2D3.B4.A5.A6.D7.C8.A9.D10.B11.D12.B13.B
14.s/(t1+t2+t3) 乌龟 15.40 16.7 0.5 17. 2.20 4min28.7s 18.水 岸19.北 5
23.(1)从交通标志牌上知:此位置距香山出口5 km;此段路程中行驶速度是100km/h或者是限速为80 km/h。
(2)汽车此时超速;以这样的车速行驶,再经过180 s到达香山出口。
(3)在遵守交通规则的前提下,此汽车到香山出口至少需225 s的时间。
(4)要遵守交通规则,安全行驶等。
24.(1)6 m/s (2)5 m/s
25.(l)v=s/t(2)小(3)40.0 1 0.2 0.5 (4)大 变速直线 (5)大
26.(1)平均速度(2)提示:人起跑速度快,如果比赛路程只有几米,自行车还没来得及加速,自行车的平均速度就更小,人骑白行车比跑步更轻松,比赛路程长时,跑步的人平均速度小(3)提示:分别记录两人运动的路程和所用的时间,求出平均速度(4)①3.3 m/s;
4.9 m/s;②160 m;③42 s;④200—240 m
27.根据v声t+v车t=2s得:v车=(2s-v声t)/t
脉搏跳动一次的时间为60/n S,则由v车.(N. 60/n)=s得v车=sn/60N
通过看驾驶室里的速度显示表的示数知道火车速度的
根据V车t=(N-1)L得V车=(N-1)L/t
附加题:(1)长 (2)答图所示 (3)正比 (4)可测出单摆来回摆动多次(如30次)的时间,再计算出来回摆动1次的时间 (5)将钟摆的长度调短
篇8:初二物理试题《压强》单元测试题及答案
物理试题一、选择题(每小题2分,共30分)
1、如图9.1-1所示的四个实例中,为了增大压强的是:( )
2、如图9.1-2所示,底面积不同的圆柱形容器A和B分别盛有甲、乙两种液体,两液面相平且甲的质量大于乙的质量。则此时液体对各自容器底部的压强PA、PB的压力FA、FB的关系是( )
A.PA FB C.PAPB FA=FB D.PAPB FB
3、如图9.1-3所示,装满水的密闭容器置于水平桌面上,其上下底面积之比为4:1,此时水对容器底部的压力为F,压强为P。当把容器倒置后放到水平桌面上,水对容器底部的压力和压强分别为:( )
A.F,P B.4F,P C.F,P D.F,4P
4、沙漠中有一个沙丘(如图9.1-4所示),当水平方向的风不断吹过沙丘时,沙丘会慢慢:( )
A.向左移动 B.向右移动 C.仍停原处 D.无法确定
5、如图9.1-5所示,甲、乙两个不同的实心圆柱体放在水平面上。其中甲的高度小于乙,甲的底面积大于乙,而它们对地面的压强正好相等,则下列判断正确的是:( )
A.甲的密度大,甲受到的重力大 B.甲的密度大,甲的质量小
C.甲的密度小,甲受到的重力小 D.甲的密度小,甲的质量大
6、连通器在日常生活和生产中有着广泛的应用,如图9.1-6所示事例中不是利用连通器原理工作的是:( )
7、下列哪一事例可以说明大气压的存在:( )
A.用吸管吸牛奶 B.棒冰融化
C.手握橡皮圈发生形变 D.水往低处流
8、下列有关液体压强的说法中,正确的是:( )
A.不同容器内液体对容器底的压强越大,说明容器内液体重力越大
B.相等质量的液体对不同容器底产生的压强可以是不相等的
C.密度较大的液体对容器底产生的压强肯定比较大
D.以上说法都正确
9、茶壶盖上开一个孔作用是:( )
A.好系绳子,防止打碎
B.让外面空气流进,不至于壶内空气压强减小使水流不出来
C.让热所冒出来,便于热茶冷却 D.让外面的空气流进,可保证茶水的新鲜
10、如图9.1-7所示是甲、乙两种物质的质量和体积的关系图象.若用质量相等的甲、乙两种物质分别制成实心正方体A、B,把它们平放在水平地面上,则两正方体A、B对水平地面的压强之比为:( )
A.8:1 B.4:3 C.1:2 D.4:1
11、在托里拆利实验中,测出的大气压小于实际气压的原因是:( )
A.往水银槽内多加一些水银 B.将玻璃管稍微倾斜一些
C.将玻璃管稍压下一些 D.在玻璃管中混进少许空气
12、下列现象及其原因分析,错误的是:( )
A.高压锅容易将食物煮熟----液体表面气压增大,液体沸点升高
B.台风掀开屋顶的瓦----屋内外空气的流速不同,压强不同
C.软包装饮料吸管一端做成尖形----减小受力面积,增大压强
D.铁路的钢轨铺在枕木好----增大受力面积,增大压强
13、小明在玻璃杯内盛满水,杯口盖上一张硬纸片(不留空气),然后托住纸片,将杯子倒置或倾斜,水都不流出,纸片也不掉下(如图9.1-8所示)。对整个探究活动的分析正确的是:( )
A.探究的问题:大气压强有多大 B.探究的目的:研究水的重力与大气压力的关系
C.探究的假设:大气对各个方向都有压强 D.探究的结论:大气向各个方向的压强相等
14、如图9.1-9所示,小强同学在倒置的漏斗里放一个乒乓球,用手指托住乒乓球。然后从漏斗口向下用力吹气,并将手指移开,那么以下分析正确的是:( )
A.乒乓球不会下落,因为其上方气体流速增大,压强变大
B.乒乓球不会下落,因为其上方气体流速增大,压强变小
C.乒乓球会下落,因为其上方气体流速增大,压强变大
D.乒乓球会下落,因为其上方气体流速增大,压强变小
15、一只可口可乐瓶,其侧壁有a、b两个小孔并用塞子塞住,瓶内盛有一定质量的酒精,如图9.1-10所示,把可口可乐瓶放入水中,当瓶内、外液面相平时,拔出a、b两个小孔上的塞子,则:( )
A.a、b两个小孔均有水流入 B.a、b两个小孔均有酒精流出
C.酒精从a小孔流出,水从b小孔流入 D.水从a小孔流入,酒精从b小孔流出
二、填空题(每空1分,共26分)
16、压强是反映________的物理量。物理学在把____________定义为压强;压力作用的效果跟压力的大小、_______有关。
17、抽水机是利用_____的原理工作的;自来水笔吸墨水时,把笔的弹簧片按几下,墨水就进入橡皮管里去了,这是因为在按压弹簧片时排出了橡皮管里的大部分空气,使橡皮管里的气压____;管外的墨水在____作用下进入管内。
18、如图9.1-11所示,用两食指同时压铅笔两端,左手指受到铅笔的压力为F1、压强为P1;右手指受到铅笔的压力为F2、压强为P2。则F1___F2,P1___P2。(选填大于、等于或小于)
19、为了适应生存环境,老虎都长有尖尖的牙齿,如图9.1-12所示。当老虎用相同的力咬食食物时,受力的____越小,产生的____越大。
20、如图9.1-13所示,A、B为两个等高圆柱形容器,容器内部的底面积之比为2:1,都装满水,水对容器底部的压强之比为___,水对容器底部的压力之比为____。
21、如图9.1-14所示,长方体冰块熔化成水后,对容器底面的压强____,压力____。
22、小明将旅行包背在肩上,肩膀受到压力的施力物体是____,包的背带做得很宽是为了减小对肩膀的____。
23、甲、乙两物体,质量之比为3:5,放在水平桌面上,与桌面的 接触面积之比为1:2, 则甲、乙两物体对桌面的压力之比为____,压强之比为____。
24、如图9.1-15所示,某同学用弹簧测力计拉着放在水平桌面上的.木块匀速滑动,在木块前端离开桌面至一半移出桌面的过程中,弹簧测力计的示数____,木块对桌面的压力____,木块对桌面的压强____。 (均选填变大、变小或不变)
25、质量是300克的课本放在水平桌面上,课本受到的重力是____N,桌面受到的压力是____N,压力的施力物是____。
26、重8N的木块放在水平桌面上,用2N的水平拉力拉动时,木块做匀速直线运动,当水平拉力增加到3N时,木块受到的摩擦力为___N;若木块与桌面的接触面积为0.02m2,则木块对桌面的压强为___Pa.
三、作图题(每小是2分,共4分)
27、如图9.1-16所示,作出物体对平面的压力的示意图。
28、如图9.1-17所示, 物体A静止,作出A物体对水平面的压力的示意图。
四、实验题(每空2分,共20分)
29、小宇同学利用A、B两物体、砝码、泡沫等器材探究压力的作用效果与什么因素有关的实验。如图9.1-18所示。
(1)实验中小宇是通过观察___________来比较压力作用效果的。
(2)比较甲、乙两图所示实验,能够得到的结论是________________。
(3)若要探究压力的作用效果与受力面积大小的关系,应通过比较图___ 所示实验。
(4)此时实验中要控制:_______ 不变;
(5)小宇同学实验时将物体B沿竖直方向切成大小不同的两块,如图2-1-38丁所示。他发现它们对泡沫的压力作用效果相同,由此他得出的结论是:压力作用效果与受力面积无关。你认为他在探究过程中存在的问题是______________。
30、下表是小宇同学利用图9.1-19所示的实验装置探究液体压强规律时所测得的部分数据.
(1)实验所得的数据有一组是错误的,其实验序号为____ 。
(2)综合分析表中的实验数据,归纳可以得出液体压强的规律:①________ ,该结论是通过分析比较实验序号____ 的数据得出来的;.②_________ ,该结论是通过分析比较实验序号____ 的数据得出来的。.
五、计算题(第1小题6分,第2小题7分,第3小题7分,共20分)
31、小宇同学质量为60 kg,双手倒立在地面上,每只手掌与地面的接触面积是150cm2。
求:(1)小宇的重力。(2)小宇双手倒立时对地面的压强。
32、轮船舱底在水面下3 m,舱底穿了一个面积为0.02 m2的洞,要堵住这个洞,需要对挡板施加多大的力?
33、履带式拖拉机的质量是6000 kg,每条履带与地的接触面为第2.5,宽30 cm;如果河面冰层能承受的最大压强为1.0105Pa,这台拖拉机能否通过冰面?若能通过,最多能载多少kg的货物?
答案
一、选择题
1、C 2、D 3、B 4、A 5、A 6、C 7、A 8、B
9、B 10、D 11、D 12、D 13、C 14、B 15、A
二、填空题
1、压力作用的效果 单位面积上受到的压力 受力面积
2、大气压 减小(小于大气压) 大气压
3、等于 小于
4、面积 压强
5、1:1 2:1
6、变小 变小
7、旅行包(背带) 压强
8、3:5 6:5
9、不变 不变 变小
10、3 3 课本
11、1 400
三、作图题
四、实验题
1、(1)泡沫的凹陷程度不同
(2)受力面积一定时,压力越大,压力的作用效果越明显。
(3)甲和丙
(4)受力面积不变
(5)没有控制压力不变
2、(1)4
(2)液体的压强随深度的增加而增大确 1、2、3
在同一深度,液体向各个方向的压强都相等 3、5、6
五、计算题
1、解:(1)小宇的重力为:
G= mg=60 kg10 N/ kg=600N
(2)小宇双手倒立时跟地面接触面积为:
S =2ab =20. 015 m2 =0. 03 m2
小宇双手倒立时对地面的压强为:
P ===2.0104 Pa
2、解:挡板处受到水的压强为:
P =gh =1.0103 kg/m310 N/ kg3 m 0.02m2 =3.0104 Pa
需要对挡板施加的力为:
F = P S =3.0104Pa0.02m2=600 N
3、解:拖拉机对冰面的压力为:
F =G =mg =6000 kg10 N/ kg=6.0104 N
拖拉机与冰面的接触面积为:
S =2ab =22.5 m0.3 m=1.5 m2
拖拉机对冰面的压强为:
由于4.0104 Pa 1.0105Pa,所以拖拉机能通过面。
冰面能承受拖拉机的最大压力为:
F承= P承S =1.0105Pa1.5 m2 =1.5105 N
拖拉机最多能载的货物重为:
G =F承-F =1.5105 N-6.0104 N =9.0104 N
其质量为:
m = = =9.0103 kg
★ 国际智商测试答案
初二英语单元考点测试及答案(共8篇)




