2015-2016(上)九年级9月份英语题集
1.John often asks his teacher _________ help.
A: to B. with C.for D.on
2.--Could you go shopping _______me now?
--Sorry, I have to visit my grandparents.
A.on
B.with
C.in
D.of
3.--What about ________ a rest?
--OK. Let’s go for a walk.
A.to take
B.take
C.taking
4.It takes me half an hour ________ the piano every day.
A.play
B.playing
C.to play
5.--Remember this, children. _______ careful you are, _______mistakes you will take.
A.The more; the more
B.The fewer; the more
C.The more; the fewer
D.The less; the less
6.--_______can you tell whether a foreigner is English or American?
--Maybe by the way he speaks.
A. Why
B. When
C. Where
D. How
7.--Tommy, you can never let others know what I have told you today.
--Don’t worry. I will keep the ________.
A.secret
B.money
C.address
D.grade
8.Kimi _______ ______ ______(害怕) go out and finish the task by himself at first.
9.He didn’t go to school yesterday _______he was ill.
A.because
B.because of
C.if
D.so
10._______ we don’t save water, we will have no water to drink one day.
A.Until
B.When
C.Although
D.If
11.It is polite ________ a gift when you visit somebody for the first time.
A.take
B.taking
C.to take
12.I find _______ _______ ______ to do housework.(我发现做家务很容易。)
13.The price of oil ________. 石油价格上涨了。
Please add the butter on the bread. 请把黄油抹在面包上。
14.The train can run at a top s______ of 500 kilometers per hour. 15.He never tries because he is afraid of ______________(犯错误)
16.Her mother goes to work _______bus every morning.
A.by
B.at
C.on
D.in
17.--How do you learn English words? --_____ making flashcards.
A.To
B.By
C.For
D.With
18.--Kelly,who’s the girl _____glasses in the photo?
--It’s me. I used to wear glasses and have long hair.
A.by
B.of
C.on
D.with
19.--_______do you improve your listening? --I improve it_____listening to tapes.
A. What; by
B. How; by
C. What; with
D. How; with
20Most of my classmates were born_________June,1998.
A.in
B.on
C.at
D.of
21.--Shall we go for a picnic tomorrow? --Well, it all_______the weather.
A.belongs to
B.happens to
C.depends on
D.concentrates on
22.We need to connect the printer _______ the computer.
A.to
B.of
C.for
D.by
23.When you visit a museum you should ______the instructions and don’t be against them. https://www.wendangku.net/doc/1b16253888.html,pare with B.look forward to C.pay attention to D.try out
24.The rivers will become dirtier and dirtier _______we take action to protect them.
A.since
B.if
C.until
D.unless
25.If we have no k_______(知识), we can’t succeed in doing any work.
26.He lost his key. It made him _____in the cold wind to wait for his wife’s return.
A.to stay
B.stayed
C.stays
D.stay
27.The good news made everyone in our class _______.
A.sad
B.happy
C.to be happy
D.felt happy
28.Remember_______off the lights when you leave the room, please.
A.to turn
B.turning
C.turn
29.What a nice day! We should go sightseeing ________watching TV in the hotel.
A.because of
B.instead of
C.together with
D.out of
30.We’ve got no coffee. Let’s have tea _________.
A.either
B.however
C.yet
D.instead
31.--It’s too late. I have to go now. --Oh, it’s raining outside. Don’t leave _____it stops. A.since B.until C.while
32.You need to take notes at the meeting so make sure _____a pen and some paper with you. A.bring B.bringing C.to bring D.not bring
33.My mother told me ______she would go to the shop.
A.that
B.which
C.what
D.who
34.I don’t know_______they have passed the exam.
A.what
B.if
C.who
D.where
35.--Is your friend Michel still in Australia?
--I don’t know. I have _____information about him because we haven’t seen each other for______years.
A.a little; a few
B.little; a few
C.a few; a little
D.few; a little
36.______your sunglasses, Sally. The sun is so bright.
A.Put down
B.Put up
C.Put away
D.Put on
37.--Mum, where are my socks?
--Under your bed. You should _____your things.
A.put on
B.put down
C.put away
38.--______can you finish this English exam? --In about one and a half hours.
A.How far
B.How often
C.How soon
D.How long
39.--I didn’t hear you come in just now.
--That’s good. We tried ______any noise, for you were sleeping.
A.not make
B.not to make
C.to make
D.making
40.Many children are left alone in the countryside. Let’s try our best _____them.
A.help
B.helping
C.to help
D.helps
41.She is new here. She is a _________(strange) to everyone.
42.My mother often helps me __________(study) math at home.
43.I refused _________(play) soccer with them yesterday.
44.It was such a funny show that people couldn’t help________again and again.
https://www.wendangku.net/doc/1b16253888.html,ugh
B.to laugh
https://www.wendangku.net/doc/1b16253888.html,ughing
45._______clever the boy is ! A.How B.What C.What a
46.Mary is always careful. She often looks over her homework _____before she hands it in. A.some times B.sometime C.sometimes 47.用what或how填空
_______clever girls they are! ________clever the girls are!
48.选词填空:How, What , What a
(1)______cool he is !
(2)_______wonderful garden it is !
(3)_______tall buildings they are !
(4)_______happy the boy is !
(5)_______sunny weather it is !
49.Look! Laura is getting the first place. ______fast runner she is !
A.How
B.What
C.How a
D.What a
50.Thanks for your invitation, but I’m so sorry I can’t go. I need to __my baby at home
51.The old man ______for years. A.died B.dies C.has died D.has been dead
52.--You look sad. What has happened?
--Everyone_____us to win the match, but we lost.
A.expects
B.expected
C.hopes
D.hoped
53.The story _____me ______an experience I once had.
A.took; to
B.woke; up
C.gave; to
D.remind; of
54.If he goes on drinking wine like that, he’ll _________(最后) dead.
55.The students are_______the leaflets to people over there to ask them to protect our earth. A.printing out B.giving out C.selling out D.putting out
56.He _____plenty of money to the people in the earthquake area.
A.put out; to work out well
B.handed out; help them out
C.gave out; work out well
D.gave away; to help them out
57.The people in Ya’an have met lots of difficulties, but they haven’t ____hope.
A.picked up
B.given up
C.looked for
D.waited for
58.The fire last night destroyed many buildings. _____, no one was killed.
A.Actually
B.Simply
C.Luckily
D.Immediately
59.--Do you enjoy_____a volunteer?
--If you want_______this, you’d better join us.
A.being; knowing
B.to be; knowing
C.being; to know
D.to be; to know
60..My teacher told me Sunday ___________(be) the first day of a week.
61..He said he __(do)his homework then. 3.Our teacher told us that where there _(be) a will,there is a way.
62.I know when the meeting will begin.(not)_____________________________
2015-2016(上)九年级10月份英语题集
1.What ______Mr Wei ________?
A.is; like
B. does; be like
C.is; look like
D.is; likes
2.We felt strange about his________(silent) at the party as he used to be very outgoing.
3.It’s not _________(有帮助的)to be worried now.
4.It’s been twenty-two years since I ________(work) here.
5.It’s important _________people ________learn team spirit.
A.of; of
B.of; to
C.for; to
D.to; to
6.Miss Wang used to be heavy,________she?
A.is
B.isn’t
C.didn’t
D.did
7.They used to ______up early.
A.get
B.gets
C.getting
D.got
8.--My brother _____like English. But now he is interested in it.
--People sure change.
https://www.wendangku.net/doc/1b16253888.html,ed to
B.didn’t use to
C.didn’t used to
D.was used to
9.His father used to be love going fishing. (改为一般疑问句并作否定回答)
(1)--________his father to love going fishing?
--________, he _______.
(2)--_______his father _____to love going fishing?
--_______, he_______.
11.Mr Man_______early. Now he _____late.
https://www.wendangku.net/doc/1b16253888.html,ed to sleep; used to sleeping
https://www.wendangku.net/doc/1b16253888.html,ed to sleep; is used to sleeping
C.is used to sleep; used to sleeping
https://www.wendangku.net/doc/1b16253888.html,ed to sleeping; used to sleep
12.The winner of the singing competition was a ____girl named Zhang Mei form China.
A. 19-years-old
B.19-year-old
C.19-year-olds
13.--I don’t know how to ______with this math problem.
--You can solve this problem ______listening carefully in class.
A.do; by
B.deal; by
C.do; in
D.deal; with
14.She thought that ______with Englishmen was more helpful than with friends.
A.having conversations
B.had conversations
C.have conversations
15.That girl didn’t dare_____(go) out at night when she was young.
16.There is _____snow on the road. It’s ______difficult for the drivers to drive.
A.too many; too much
B.much too; many too
C.much too; too many
D.too much; much too
17.Zhu Di dared to dance in public. (否定)
Zhu Di _____ ______ to dance in public.
18.Linda used to be nervous _____tests all the time.
A.about
B.on
C.at
D.for
19.The girl used to be ______the school tennis team.
A.to
B.of
C.on
D.at
20.Shi Li is a girl. She is twelve years old. (合并为一句)
Shi Li is a ________________ _________.
21.那位母亲过去常担心她儿子。
That mother ________ _______ ________ ________ her son.
22.--You didn’t use to play tennis,________?
--Yes. I still like playing tennis now.
A.didn’t you
B.did you
C.weren’t you
D.were you
23. In the _______(absent) of the manager, I shall be in charge.
24. The father was _______(pride) of his son’s efforts(努力) at school.
25. China is becoming stronger and stronger. We _______(为…而自豪) our country.
26. My ______sister will go to school this September.
A. five year old
B. five-years-old
C. five years’ old
D. five-year-old
27. Jay Chou’s mother had a great ______(influence) on him when he was very young.
28.My life ________ a lot in the past few years.
A. change
B. changed
C. has changed
D. have changed
29.老师亲自教孩子洗衣服。
The teacher taught the children to wash their clothes ________ _______.
30.一直照顾好她的孩子是必要的。
It’s necessary ______ ______ ______ her child well _______ _____ _____.
31.She is _______ cats, so she never keeps them at home.
A. interested in
B. afraid of
C. worried about
D. afraid to
32.—How far is it from Tianjin to Changsha?
--It is a ______ flight from Tianjin to Changsha.
A. 2-hour-long
B.2-hours-long
C.2 hour’s long
D.2 hour long
33.--Your coat looks nice .Is it ________ cotton?
--Yes, and it’s ________Inner Mongolia.
A: made of; made by B. made of; made in
C. made by; made for
D. made by; made from
34. Sanya is famous _______its beautiful beaches.
A.of
B. for
C.as
35.Yaoming is famous ________ playing basketball
A.to
B.as
C. for
D. between
36.____Rita ____her mother know my address. They often drop by my home.
A.Not; but
B. Both; and
C. Either; or
D. Not only ;but also
37.Practising in groups is good _______us to learn English
A.at
B.in
C. for
38._______ _______ happens , I won’t change my mind.
(不论发生什么,我都不会改变心意)
39.We find ___ impossible that we can learn a foreign language well in a short time.
A. that
B. this
C. one
D.it
40. He found that many _______things in America were made in China.
A. every day
B. everyday
C. each day
D. every
41.It is polite ________ a gift when you visit somebody for the first time.
A. take
B. taking
C.to take
42. He can hardly _______ _______ ______ computer games all day.
(他几乎不可避免的整天玩电脑游戏。)
43.—Excuse me .Could you please tell me ______my car.
--Sure. Park it right. Here’ll help you.
A. how to stop
B. where to park
C. where to stop
D. when to park
44.—Excuse me, sir, smoking______in the gas station.
--Oh , I’m really sorry.
A. doesn’t know
B. isn’t allowed
C. aren’t allowed
45.A lot of trees ____around here every year ,and we can enjoy fresher air now.
A.were planted
B. are planted
C. will plant
D. are planting
46.My room _____ _________ every day. (我每天打扫我的房间)
47.The blackboard ____ ______ ________by Kate (凯特没有擦黑板)
48.That hero was burned to death _________a very high heat.
A. of
B.as
C. for
D. at
49.—What a nice model car! --Thanks a lot ,It____ me the whole day to make it
A.spent
B. took
C. cost
D. paid
50.The Greens used to live in London and now they_______ in Beijing.
A. used to live
B. are used to live
C. are used to living
D.are used for living
51.English is ______ a second language in some countries.
A. used for
B. used to
C. used as
D. used by
52._______English well ,one must have a lot of practice.
A. Speaks B,To speak C. Spoken D.Speak
53.Liu Peng saw many kinds of kites _______ the festival last month.
A.by
B.at
C.to
D.off
54.The sky lanterns were first used ____Zhuge Kongming according to Chinese history.
A.for
B.as
C.to
D.by
55. The international kite festival _________in Weifang every year.
A.held
B. holds
C.is held
D. was hold
56.—Look! What a nice toy! ----Yes, it _____by hand
A.is making
B. has made
C. is made
D. made
57. Alice interviewed some people and asked them about _____on Father’s Day.
. A. what they do B. what they did C. what they will do
58. Edison had a lot of ______ (invent) in his life .
59. ―Tom, which is your father in the picture ‖‖The man ___a hat standing on the right of me ‖ A with B on C at D of
60. Annie ___to the party .she had a wonderful time with us.
A invites
B is invited
C was invited
D has invited
61.The room_____(clean) by my mother just now.
62.In the old days ,they___ in the factory from morning to evening.
A were made to work
B asked to work
C made to work
D were asked for work
63. Old people weren’t ___good ____ in the past.
A take; care of
B taken ;care
C took ; care
D taken ; care of
64. —Could you please help me carry the box? –_________
A Thank you
B My pleasure
C Not at all
D You’re welcome
65.Great changes have ____ _____(发生)in western Jinan in the last few years.
66.China is ______ _________ one of the largest countries around the world
(毫无疑问,中国是世界上最大的国家之一)
67.She ________ ________ ________ to look after the baby.她留在家里照顾婴儿
68.The accident ___on a rainy night .
A.was taken place
B. happened
C. was happened
D. took place
2015-2016(上)九年级11月份英语题集
1.There is ____waiting for you in the meeting room . Go and have a look please.
A.anybody
B. somebody
C. everybody
D. nobody
2.How many languages ________Mo Yan’s book ________ _________?
莫言的书被翻译成了多少种语言
3.All of a ________ (suddenly) , a big stone fell down from the mountain.
4.– Where is my book? – Oh, Sorry! I have taken yours ___mistake.
A.by
B. by a
C. with
D. with a
5. – Are you feeling better now? – Yes, I’m _____to go to school.
A. good enough
B. enough well
C. well enough
6.There are over twenty people in the room = There are ______ _______ twenty people in the room.
7.It ___ last week that the haze (雾霾) in Beijing caused many problems.
A. reports
B. reported
C. is reported
D. was reported.
8. The 30th Olympics ___in London in 2012.
A.held
B. was held
C. were held
D.has been held
9. My P.E teacher _______us ______ two teams and asked us to play games.
我的体育老师把我们分成两组并要求我们玩游戏。
10. Those basketball ________(hero) are usually looked up to by many young people.
11. He got to school late,_______ he got up late
12. This is because B. This is why C. Because of D. Why did 13. I hope you can ______ _______ ______ a better plan than this .
我希望你们能提出一个比这个更好的计划
14. The teacher ___ Tom ____ ____ talk in class.
老师要求Tom不要在教室里说话。
15. His bike is broken . _______ ________ _________ he comes to school on foot .
他的自行车坏了。那就是他步行来学校的主要原因。
17. It's _______ _______ ________ __________(很难交到朋友) if you stay at home alone all the time.
18. I ______ _______ _______ ________ my bicycle. 我忘了把自行车取回来。
19. Eating too much sugar can _______ _____ health problem.
食用过多的糖会引起健康问题。
21.--I think students should have mobile phones to call their parents.
--________. They often use them to play games instead.
A. I hope so.
B.I don’t agree.
C.No problem.
D.Good idea.
22.I don’t think the newly-directed film by Zhao Wei is as interesting as people say,
_____? A.do you B.isn’t it C.is it D.don’t you
23.I got my old bicycle _______(fix) up in order to give it away to charity.
24.She wants to get her hair ______(cut) in the barbershop.
The dinning hall is _____to hold 300 people.
A.enough big
B.enough small
C.small enough
D.big enough
25.While we were running on the playground, Jack suddenly stopped ______and lay on the ground. So we all stopped _______what was wrong with him.
A.to run; to see
B.running; seeing
C.running; to see
D.to run; seeing
26.He is too ______ to go any farther. He needs to have a good rest.
A.tire
B.tiring
C.tired
D.tires
27.Students should learn how______problems.
A.solve
B.solving
C.can solve
D.to solve
28.I regret _______my daughter to the shopping center. She is always running everywhere. A.take B.taking C.takes D.to take
29.You can’t sneeze and keep your eyes _____at the same time.
A.open
B.opens
C.opened
D.opening
30.--The summer holiday is on the way. We’ll have more freedom.
--_______. But we should learn to manage ourselves.
A.I’d love to
B.I agree with you
C.I’m afraid I won't
31.The people who are more confident have more______to make themselves successful.
https://www.wendangku.net/doc/1b16253888.html,cation
B.chances
https://www.wendangku.net/doc/1b16253888.html,cation
D.excuse
32.Our teacher _______very_______ ________ us. 我们的老师对我们要求严格。
33.You will be late for school______ you don’t get up early.
A.but
B.if
C.and
D.or
34.--The summer holiday is on the way. We’ll have more freedom.
--______. But we should learn to manage ourselves.
A.I’d love to
B.I agree with you
C.I’m afraid I won’t
35.___________should be_________ to go to the movies with friends at night.
16岁的孩子应该被允许晚上同朋友去看电影。
36.He is a basketball fan. He practices _____basketball after school every afternoon.
A.playing
B.play
C.to play
D.plays
37.As a professional basketball player, he is serious ______playing basketball.
A.about
B.at
C.of
D.to
38.Some parents might worry that theirs children’s hobbies can____their schoolwork.
A.get the way of
B.get on the way of
C.get on well with
D.get in the way of
39.Mary said she had nothing _____her son’s decision,but she still wanted to persuade him. A.for B.at C.in D.against
40.I think the boy can to it as_________(careful) as his sister.
41.Seeing their teacher ______into the classroom, they stopped _____at once.
A.walk; telling
B.entering; to speak
C.enter; to tell
D.walking;talking
42.--Can I have some cookies,Mom? --_________I’ll get you some.
A.No way!
B.How come?
C.How can it be?
D.Why not?
43.He is very young,_______he knows a lot.
A.so
B.if
C.but
D.because
44.--You look happy. What’s wrong? --The exam is coming. I am _____it.
A.worry
B.worried
C.worried about
D.worrying
45.What _________(happen) if he doesn’t end up as a professional runner?
46.There is no doubt that the Diaoyu Island ___________(belong) to China.
47.--I didn’t fall asleep last night. So I am sleepy now.
--________________.
--I worried about the coming test.
A.How are you?
B.Are you OK?
C.What’s wrong?
D.When did you go to bed?
48.My host family tried to cook______for me when I studied in New Zealand.
A.different something
B.different anything
C.something different
D.anything different
49.The great reporter will offer much_______(有价值的)news to the TV station.
50.Mr. Green can’t be at home because he has gone to Shanghai to ______(参加) an important meeting.
51..Don’t make any _______(噪音) when you are in the library.
52.Three __________(policeman) arrived at once when the car accident happened.
53.Do you ___________(玩得高兴) helping your mother make cakes?
54.--Tom, supper is ready.
--I don’t want to eat__________, Mum. I’m not feeling well.
A.everything
B.nothing
C.something
D.anything
55.There are a lot of people __________(play) games there.
56.--Mum, I’m not feeling well.
--Oh, dear! ______________
A.What’s wrong?
B.Not at all.
C.All right.
57.--Let’s go climbing, shall we?
--You _____be joking! Don’t you know I’m afraid of high places?
A.may
B.can
C.must
D.should
58.--Bob, where is Linda?
--She_______be in the library, but I am not sure.
A.must
B.may
C.need
D.has to
59.--Look at the young lady in red. Is it Mrs. King?
--No, it ______be her. She is wearing a white dress today.
A.can
B.may
C.must
D.can’t 60.--What the weather be like tomorrow?
--It _____be rainy, cloudy or sunny. Who knows?
A.must
B.might
C.shall
D.should
61.I am greatly interested in this painting. It ______the painter’s love for nature.
A.expresses
B.discusses
C.expects
D.imagines
62.His family are worried about him because they haven’t _______letters from him for
a long time. A.accepted B.received C.written D.collected
63.They arrived _____Shanghai _______ a cold morning.
A.in; in
B.in; on
C.at; on
D.at; in
64.Plants prevent the sun form ________(make) the earth drier.
65.Trees can stop the wind _______the earth away.
A.blowing
B.to blow
C.blows
66.This kind of tea has a special ________(medicine) purpose.
67.Our math teacher often asks us to do more _________(exercise).
68.Can you make up sentences with these _____________(express)?
69.The girl can cook and do the dishes ______she is only eight years old.
A.though
B.unless
C.if
D.because
70.--Miss Lee, I didn’t catch what you said. Could you tell me ______again?
--OK.
A. what should we take
B.where shall we meet
C.when we would start
D.how we will get there
【例1】 物体重为0.5N ,把它放入盛有水的烧杯中,溢出重为0.3N 的水,则它受到的浮力( ) A.0.3N B. 0.5N C.可能为0.2N D.可能为0.4N 【例2】 与容器底部紧密接触的物体A 的体积为100cm 3 ,浸没在水中,如果往水 中加入一些食盐,请问物体A 受到的浮力如何变化( ) A.变大 B. 变小 C.不变 D.无法确 定 【例3】 小明从学校旁边的小商店买了瓶饮料,饮料瓶子的形状如图所示,开始满瓶的饮料给小明喝 了一些后,问剩余的饮料对瓶底的压力与剩余饮料自身的重力关系是( ) A .压力大于重力 B .压力小于重力 C .压力等于重力 D .无法确定 【例4】 如图所示的装置,已知物体A 重为60N ,在水平拉力F 的作用下,物体 以0.2m/s 的速度做匀速直线运动,物体与水平地面之间的摩擦力为 12N ,若滑轮组的机械效率为80%,则在4s 内拉力F 所做的功是 J 。 【例5】 如图,金属球A 下吊着一个金属球B ,恰好悬浮于水中.现沿杯壁往容器中 加入一定质量的水,结果金属球B ( ) A .上浮 B .下沉 C .悬浮 D .以上均不对 【例6】 如例五图所示,气球A 下吊着一个金属球B ,恰好悬浮于水中.现沿杯壁往 容器中加入一定质量的水,结果金属球B ( ) A .上浮 B .下沉 C .悬浮 D .以上均不对 【例7】 下列说法正确的是( ) A .受摩擦力的作用的两个表面一定受弹力作用 B .摩擦力一定与物体运动方向相反 C .真实值与测量值之间的差异叫做误差 D .在光的反射过程中,入射角等于反射角 E .在平面镜成像过程中,物距等于像距 F .导体电阻一定时,导体两端电压与通过该导体的电流成正比 G .把装在盆里的水泼出去,这是利用了盆的惯性 H .将锤柄在石墩上撞击几下,松动的锤头就紧套在锤柄上,这是利用了锤头的惯性 I .刘翔冲过终点线后,还得向前运动一段距离,这是由于刘翔受到了惯性的作用 J .某一物体温度降低的多,放出热量就多 K .温度高的物体比温度低的物体含有热量多 L .温度总是从物体热的部分传递至冷的部分 M .1牛的水可以产生100牛的压力 N .1牛的水可以产生100牛的浮力
O G F B D A C E 1.如图,矩形ABCD 中,3AB =cm ,6AD =cm ,点E 为AB 边上的任意一点,四边形EFGB 也是矩形,且2EF BE =,则AFC S =△ 2 cm . 2 .5月23日8时40分,哈尔滨铁路局一列满载着2400吨“爱心”大米的专列向四川灾区 进发,途中除3次因更换车头等原因必须停车外,一路快速行驶,经过80小时到达成都.描述上述过程的大致图象是( ) 3 如图,将沿DE 折叠,使点A 与BC 边的中点F 重合,下列结论中:①EF AB ∥且1 2 EF AB =;②BAF CAF ∠=∠; ③1 2 ADFE S AF DE =g 四边形; ④2BDF FEC BAC ∠+∠=∠,正确的个数是( ) A .1 B .2 C .3 D .4 4 如图,在四边形ABCD 中,动点P 从点A 开始沿A B C D 的路径匀速前进到D 为止。在这个过程中,△APD 的面积S 随时间t 的变 化关系用图象表示正确的是( ) 5如图,在正方形纸片ABCD 中,对角线AC 、BD 交于点O ABCD ,使AD 落在BD 上,点A 恰好与BD 上的点F 重合.别交AB 、AC 于点E 、G.连接GF.下列结论:①∠AGD=112.5°;②③S △AGD=S △OGD ;④四边形AEFG 是菱形;⑤BE=2OG.是 . 6 福娃们在一起探讨研究下面的题目: 参考下面福 娃们的讨 论,请你解该题,你选择的答案是( ) 贝 贝:我注意 s t O A s t O B s t O C s t O D A D C E F G B s 80 O v t 80 O v 80 O t v O A . B. C . D . 80 A D B F E 第20题图 D C B P A 函数2y x x m =-+(m 为常数)的图象如左图, 如果x a =时,0y <;那么1x a =-时, 函数值( ) A .0y < B .0y m << C .y m > D .y m = x y O x 1 x 2
人教版六年级数学上册易错题集锦 一、填空题。 1、一种盐水的含盐率是20%,盐与水的比是( ? ? ? ? ?)。 2、生产同样多的零件,小张用了4小时,小李用了6小时,小张和小李工作效率的最简比是( ? ? ? ? )。 3、从甲地到乙地,客车要行驶4时,货车要行驶5时,客车的速度与货车的速度比是( ? ? ? ?),货车的速度比客车慢( ? ? ?)%。 4、100克糖溶在水里,制成的糖水的含糖率为12.5%,如果再加200克水,这时糖与糖水的比是( ? ?)。 5、若从六(1)班调全班人数的1/10到六(2)班,则两班人数相等,原来六(1)班与六(2)班的人数比是( ? ? ? ? )。 6、把甲队人数的1/4调入乙队,这时两队人数相等,甲队与乙队原人数的比为( ? ? ? ?)。 7、六(1)班今天到校40人,请病假的5人,该班的出勤率是( ? ? ? )。 8、把一个半径是10cm的圆拼成接成一个近似的长方形后,长方形的周长是( ? ),面积是( ? ?)。 9、( ? ? ?)米比9米多40% , 9米比( ? ? )少55% ,200千克比160千克多( ? )%;160千克比200千克少( ? ?)%;16米比( ? ?)米多它的60%;( ? ?)比32少30% 。 10、钟面上时针的长1dm,一昼夜时针扫过的面积是( ? ? )。 11、一根水管,第一次截去全长的1/4,第二次截去余下的2/3,两次共截去全长的( ? ? )。 12、某种皮衣价格为1650元,打八折出售可盈利10%.那么若以1650元出售,可盈利()元。 13、正方形边长增加10%,它的面积增加( ? ?)% 。 二、判断题。 1、某商品先提价5%,后又降阶5%,这件商品的现价与原价相等。( ? ?) 2、在含盐20%的盐水中加入同样多的盐和水后,盐水的含盐率不变。( ? ?) 3、如果甲数比乙数多25%,那么乙数就比甲数少25%。 ? ? ?( ? ? ?) 4、半径是2厘米的圆,它的周长和面积相等。 ? ? ? ? ? ? ?( ? ? ) 5、直径相等的两个圆,面积不一定相等。 ? ? ? ? ? ? ? ( ? ? )
2017年最新中考易错题专题训练 一、数与式 1.下列各数是无理数的 ( ) A .22 7 B .0 45tan C D .3.14. 错因分析: 2. ( ) A .4 B .4± C .2± D .2. 错因分析: 3. 12 1的负倒数的相反数是 ( ) A .-12 B .12 C .23 D .23 -. 错因分析: 4.下列根式是最简二次根式的是 ( ) A .a 8 B . 2 2b a + C .x 1.0 D . 5 a . 错因分析: 5.若a -= a= ( ) A .-2 B .4± C .2± D .2. 错因分析: 6.下列计算哪个是正确的 ( ) A .523=+ B .5252=+ C . b a b a +=+22 D 2 = 错因分析: 7.把- ( ) A .a B .a - C .-a D .-a -. 错因分析: 8.若a +|a |=0,则22)2(a a +-等于 ( ) A .2-2a B .2a -2 C .-2 D .2. 错因分析: 9.已知1 3 y =,则x+y= ( ) A .56 B .16- C .56或16 - D .-1 错因分析: 10.若一个数a 的两个平方根是3x-2和2x-8, a= ( ) A .2 B .4 C .-4 D .16
11._________的倒数是它本身;_________的立方是它本身._________的绝对值是它本身. 错因分析: 12. 化简: ?? ? ??---÷-+22526x 2x x x = . 错因分析: 13.若 b c c a a b k a b c +++===,则k =________. 错因分析: 14.已知1132a b +=,则代数式 436254ab a b a a b b ---+的值为 ________ 错因分析: 15.在实数范围内因式分解:428ma m -+= . 错因分析: 二、方程与不等式 16.不等式组2, .x x a >-?? >? 的解集是x a >,则a 的取值范围是 ( ) A .2a <- B .2a =- C .2a >- D .2a ≥-. 错因分析: 17.若关于x 的方程 21 =+-a x x 有解,则a 的取值范围是 ( ) A .a ≠1 B .a ≠-1 C .a ≠2 D .a ≠±1. 错因分析: 18.已知一元二次方程(m -1)x 2-4mx +4m -2=0有实数根,则m 的取值范围是( ) A .m ≤1 B .m ≥31且m ≠1 C .m ≥1 D .-1 数学九年级上册 圆 几何综合易错题(Word 版 含答案) 一、初三数学 圆易错题压轴题(难) 1.如图,二次函数y=x 2-2mx+8m 的图象与x 轴交于A 、B 两点(点A 在点B 的左边且OA≠OB ),交y 轴于点C ,且经过点(m ,9m ),⊙E 过A 、B 、C 三点。 (1)求这条抛物线的解析式; (2)求点E 的坐标; (3)过抛物线上一点P (点P 不与B 、C 重合)作PQ ⊥x 轴于点Q ,是否存在这样的点P 使△PBQ 和△BOC 相似?如果存在,求出点P 的坐标;如果不存在,说明理由 【答案】(1)y=x 2 +2x-8(2)(-1,- 72)(3)(-8,40),(-15 4,-1316),(-174 ,-25 16 ) 【解析】 分析:(1)把(),9m m 代入解析式,得:22289m m m m -+=,解这个方程可求出m 的值; (2)分别令y =0和x =0,求出OA ,OB ,O C 及AB 的长,过点E 作EG x ⊥轴于点 G ,EF y ⊥轴于点F ,连接CE ,AE ,设OF =GE =a ,根据AE CE = ,列方过程求出a 的值, 从而求出点E 的坐标; (3)设点P (a , a 2+2a -8), 则2 28,2PQ a a BQ a =+-=-,然后分PBQ ∽CBO 时 和PBQ ∽BCO 时两种情况,列比例式求出a 的值,从而求出点P 的坐标. 详解:(1)把(),9m m 代入解析式,得:22289m m m m -+= 解得:121,0m m =-=(舍去) ∴228y x x =+- (2)由(1)可得:2 28y x x =+-,当0y =时,124,2x x =-=; ∵点A 在点B 的左边 ∴42OA OB ,== , ∴6AB OA OB =+=, 当0x =时,8y =-, ∴8OC = 过点E 作EG x ⊥轴于点G ,EF y ⊥轴于点F ,连接CE ,, 则11 6322 AG AB = =?= , 设 ,则 , 在Rt AGE ?中,, 在 中, ()2 22218CE EF CF a =+=+-, ∵AE CE = , ∴()2 2918a a +=+- , 解得:7 2a = , ∴712E ? ?-- ?? ? , ; (3)设点()2,28a a a P +-, 则2 28,2PQ a a BQ a =+-=-, a.当PBQ ?∽CBO ?时, PQ CO BQ OB =,即228822 a a a +-=-, 解得:10a =(舍去); 【题目描述】0.03吨=3%吨() 【典型错例】0.03吨=3%吨(√) 【错因分析】百分数是“表示一个数是另一个数的百分之几的数。”它只能表示两数之间的倍数关系,不能表示某一具体数量。而学生正是由于对百分数的意义缺乏正确认识,所以导致这题判断错误。 【解决对策】 (1)明确百分数与分数的区别;理解百分数的意义。 (2)找一找生活中哪儿见到过用百分数来表示的,从而进一步理解百分数的意义。 正确解题过程 0.03吨=3%吨(× ) 【题目描述】10克盐放入100克水中,盐水的含盐率为10%.() 【典型错例】10克盐放入100克水中,盐水的含盐率为10%.(√) 【错因分析】一些学生是因为对“含盐率”这一概念的不理解,所以不知该如何计算,而导致做错。一些学生比较粗心,题目当中的10克盐和100克水这样的数字也很容易使那些粗心的学生马上得出10%这样的错误答案。 【解决对策】 (1)理解含盐率的意义。并结合合格率、成活率等类似概念进一步理解。 (2)结合求含糖率、合格率、出勤率等类似题目加强练习以达到目的。 (2)教育学生做题前要养成仔细审题、认真思考的习惯。 正确解题过程 10克盐放入100克水中,盐水的含盐率为10%.(×) 【题目描述】甲班人数比乙班多12%,乙班人数比甲班少( )。 【典型错例】甲班人数比乙班多 ,乙班人数比甲班少()。 23 23 【错因分析】学生把表示具体量与表示倍数的在意义上混同了。认为甲班人数比乙班人数多就是乙班人数比甲班少。对于数量与倍数不能区分。而且一会儿把甲班人数当成单位“1”,一会儿把乙班人数当成单位“1”,概念不清楚。 【解决对策】 (1)区分数量与倍数的不同, (2)画线段图,建立直观、形象的模型来帮助理解。 (2)明确把乙班人数看做单位“1"的量,后来又把甲班看做单位“1”的量。 (3)结合类似题目加强练习以达目的。 正确解题过程 甲班人数比乙班多(),乙班人数比甲班少()。 23 2 5 【题目描述】将一个底面积为50平方厘米的圆锥放入一个盛有水的圆柱型容器中,水面上升了2cm ,圆柱的底面积是100平方厘米,问圆锥的高是多少? 【典型错例】100÷(50×2)=1;100÷50=2 【错因分析】本道题目,通过询问发现部分学生将100看成是体积,认为体积除以底面积(100÷50)得到的就是高了;另一部分学生认为要将50与2进行乘法运算,利用底面积乘高得到体积,但是他们无法解释 100÷(50×2)的含义。这其中一方面的原因是学生没有理解圆锥圆柱的体积计算公式,另一方面学生忽视了题中隐藏的条件,题目分析的不到位。 【解决对策】放入的圆锥要占一定的体积,上升的水的体积就是圆锥的体积,明确这一点解题就很容易了;上升的水的体积是100×2,圆锥的高是100×2÷50。此外熟悉体积的 初中化学错题集 一、选择汇总 例1.1 gH 2和10 gO 2在一密闭容器内混合点燃,充分反应后生成水的质量为( ) A.1 g B.9 g C.11 g D.10 g [常见错误]由质量守恒定律知“参加化学反应的各种物质的质量总和与生成物的总质量相等”,1 g H 2 和10 gO 2的质量总和为11 g ,选C 。 [错因分析]理解错误:充分反应与恰好完全反应混淆。恰好完全反应是指各种反应物都正好用完,没 有剩余;充分反应是指某一种物质已经反应完了,化学反应不能继续,而其他参与反应的物质还可能有剩 余。在化学反应中参加反应的各物质的质量要满足一个确定的质量比,并不是提供的各物质都一定能恰好 完全反应,H 2与O 2反应时的质量比为1﹕8而不是1﹕10。 [教学对策]在一个化学反应中若有多种反应物,依据反应物的量求某种生成物的质量时,若提供多种 反应物的数据而题目又没有说恰好完全反应时,此类题目往往有陷阱,可能有物质剩余,解题要小心。解 题时要根据化学方程式的量的意义,根据消耗完的物质的质量进行计算。本题根据氢气燃烧的化学反应中 的质量关系,1 gH 2只能和8 gO 2反应,而提供的10 gO 2并没有全部参加反应,还剩余2 gO 2,所以生成水 的质量应该为9 g ,正确选项B 。 [变式练习]现有20 gH 2和O 2的混合气体在一密闭容器内引燃,充分反应后冷却至室温还有2 g 气体, 则原混合气体中O 2 的质量是( ) A.2 g B.16g C.18g D.16g 或18g 答案D 例2.经测定某物质中只含一种元素,该物质( ) A.一定是纯净物 B.一定是单质 C.不可能是化合物 D.不可能是纯净物 [常见错误]单质是由一种元素组成的,一种元素组成的物质一定是单质,单质也一定是纯净物,选A 、 B 或AB 。 [错因分析]记忆、理解错误:单质是由一种元素组成的纯净物,一种元素组成的物质不一定是纯净物, 如:碳元素可以组成金刚石、石墨等多种物质,含一种元素的物质中可能有多种单质,它就属于混合物(即 不是纯净物);化合物是由不同种元素组成的纯净物,化合物中一定含有多种元素,一种元素组成的物质 不可能是化合物。 [教学对策]本题只有真正理解单质、化合物的概念及物质的分类知识和同一种元素能形成多种不同的 单质的知识后,才能顺利解答,正确选项C 。 例3.某物质在空气中完全燃烧生成8.8 g 二氧化碳和5.4 g 水,则关于这种物质的组成描述正确的是 ( )A.该物质只含有碳元素和氢元素 B.该物质中碳元素与氢元素的质量比为12∶1 C.该物质一定含有碳元素和氢元素,可能含有氧元素 D.该物质的分子中碳原子与氢原子的个数比为1∶2 【常见错误】本题重点考查元素和化合物的相关知识以及与化学式相关的判断和计算,综合性强,得 分率不是太高,常会误选A 、B 、D 。 【错因分析】误选A 的原因是学生对质量守恒定律的实质没有真正把握,误选B 、D 的原因是对化学 相关知识的判断和计算欠缺。根据物质在空气中燃烧生成了二氧化碳和水可以推知该物质中一定含有碳元 素和氢元素,可能还含有氧元素。从生成物的质量可知:二氧化碳中碳元素的质量=8.8g × 4412=2.4g ;水中氢元素的质量=5.4g ×18 2=0.6g ,所以该物质中碳元素与氢元素的质量比=2.4g ∶0.6g =4∶1,该物质的分子中碳原子与氢原子的个数比=124.2∶1 6.0=1∶3。所以正确答案只有C 。 【教学对策】质量守恒定律是初中化学的一个重要化学规律,是分析物质在化学反应中的质量关系的 中考经典错题集 一、选择题 1、A 、B 是数轴上原点两旁的点,则它们表示的两个有理数是( ) A 、互为相反数 B 、绝对值相等 C 、是符号不同的数 D 、都是负数 2、有理数a 、b 在数轴上的位置如图所示,则化简|a-b|-|a+b|的结果是( ) A 、2a B 、2b C 、2a-2b D 、2a+b 3、轮船顺流航行时m 千米/小时,逆流航行时(m-6)千米/小时,则水流速度( ) A 、2千米/小时 B 、3千米/小时 C 、6千米/小时 D 、不能确定 4、方程2x+3y=20的正整数解有( ) A 、1个 B 、3个 C 、4个 D 、无数个 5、下列说法错误的是( ) A 、两点确定一条直线 B 、线段是直线的一部分 C 、一条直线不是平角 D 、把线段向两边延长即是直线 6、函数y=(m 2-1)x 2-(3m-1)x+2的图象与x 轴的交点情况是 ( ) A 、当m ≠3时,有一个交点 B 、1±≠m 时,有两个交点 C 、当1±=m 时,有一个交点 D 、不论m 为何值,均无交点 7、如果两圆的半径分别为R 和r (R>r ),圆心距为d ,且(d-r)2=R 2,则两圆的位置关系是( ) A 、内切 B 、外切 C 、内切或外切 D 、不能确定 8、在数轴上表示有理数a 、b 、c 的小点分别是A 、B 、C 且b 初三数学易错题 代数 第一章∶一元二次方程 1、解方程1112-=+-x m x x 的过程中若会产生增根,则m=____ 2.关于x 的方程m 2x 2+(2m +1)x +1=0有两个不相等的根,求m 的取值范围__ 3,若关于x 的方程ax 2-2x +1=0有实根,那a 范围____ 4,已知方程3x 2-4x -2=0,则x 1-x 2=___,大根减小根为____ 5,以251+ -和251--的一元二次方程是____ 6,若关于x 的方程(a+3)x 2-(a 2-a -6)x +a=0的两根互为相反数,则a=___ 7,已知a,b 为不相等的实数,且a 2-3a +1=0,b 2-3b+1=0则a b +b a =___ 8,方程ax 2+c=0(a ≠0)a,c 异号,则方程根为_____ 9,若方程3x 2+1=mx 的二次项为3x 2,则一次项系数为_____ 23,分解因式4x 2+8x +1=_____ 24,若方程2x 2+3x -5=0的两根为x 1 ,x 2 则x 12+x 22=_____ 25,方程组有两组相同的实数解,则k=___方程组的解为___ 43,若x 是锐角,cosA 是方程2x 2-5x +2=0的一个根,则∠A=___ 1、已知:Rt △ABC 中,∠C=900,斜边c 长为 5 ,两条直角边a,b 的长分别是 x 2-(2m-1)x+4(m-1)=0的两根,则m 的值等于 ( ) A. –1 B. 4 C.-4或1 D. –1或4. 2、已知关于x 的方程012)32(2=+--x m x m 有两个不相等的实数根,则m 的范围是:( ) A .m<3 B. 23 3≠ 赵集中学六年级下册数学易错题集(2017/4/24) 学校 班级 姓名 一、填空题 1、9÷( )= )) =( ):36 = 0.75=( )% =( )折 2.沿着圆柱的高剪,侧面展开得到一个( ),它的一条边就等于圆柱的( ),另一条边就等于圆柱的( )。如果沿着圆柱的高剪,展开得到正方形,那么正方形边长等于圆柱的( )和( )。 3、某种盐水的含盐率是9 ℅,也就是在( )克水中放入9克盐。 4、一根长3米的圆柱形木料,平均截成4段后,表面积增加了12平方分米,原来这根木料的体积是( )立方分米。 5、把4∶15的前项加上2.4,要使比值不变,比的后项应加上( )。在比例里两个内项互为倒数,那么两个外项也( )。 6.在比例式 4 1 :31=32:24中,如果一个外项改成3,要使比例式仍然成立,另一个外项应改成( )。 7、一张精密零件图纸的比例尺是40:1,在图纸上量得零件的长是15厘米。这个零件实际长 ( )厘米。 8、有一只酒瓶子里装有480毫升的白酒,正着放酒水高20厘米,倒着放, 空5厘米。这只瓶子的容积是( )毫升。 9、在一个圆柱形的水桶里,垂直放入一段半径是2厘米的圆钢,如果把它完全放入水中,桶里的水就上升10厘米,如果把水中的圆钢露出水面6厘米, 那么,这时桶里的水就下降3厘米。这根圆钢的高是( )厘米,体积是( )立方厘米 10、一幅地图的比例尺 ,把这个比例尺改写成数值比例尺是( )。 11、有一块长24厘米、宽18厘米的长方形硬纸板,小明横着卷成一个圆柱,得到圆柱的体积是( )立方厘米,小华竖着也卷成一个圆柱,得到圆柱的体积是( )立方厘米。(圆周率取3进行计算) 12、甲数的等于乙数的,甲数∶乙数=( )∶( )。 13.白兔的只数比黑兔少 6 1 ,白兔的只数是黑兔的),( )) ,黑兔的只数是白兔的),( )) , 黑兔的只数比白兔多),( )) ,黑兔的只数占兔子总数的),( )) 。 二、选择(共6分) 1、一张图纸长30厘米,张工程师打算把一个实际长度是2.1毫米的零件画到这张图纸上,可选用适当的比例尺是( )。 A 、1:150 B 、150 : 1 C 、100:1 D 、1:100 中考化学错题精选100题 吉安县教学研究室陈人昌 2014年10月 前言 从教初三化学十五年来,总有一个想法:将学生在平时考试或练习中的错题收集起来,整理成章,一是方便各位同行在命题时作个参考,二是便于自已对试题进行一些研究提供帮助,于是我将近几年来学生在平时考试或练习中的错题收集起来,整理如下,若有不当之处,请批评指正。 一、单项选择题 1.下列物质属于氧化物的是() A.熟石灰 B 干冰 C 小苏打 D 金刚石 2.下列符号既能表示一种元素又能表示一个原子,还能表示一种固体物质的是( ) A He B.C60 C. H D. Al 3.将等质量、等质量分数的氢氧化钠溶液和硫酸溶液混合,混合后的溶液与下列物质不能发生反应的是( ) A Mg B CuCl2 C Ba(OH)2 D HNO3 4.下列各种物质按单质、氧化物、混合物的顺序排列的是() A.冰、干冰、盐酸 B.红磷、纯碱、石油 C.水银、生石灰、天然气 D.金刚石、熟石灰、空气 5.下列说法中不正确的是() A.原子、分子、离子都可以直接构成物质 B.爆炸一定是化学变化 C.在复分解反应中,反应前后各元素的化合价都不发生变化 D生活垃圾分类处理后,可变废为宝,同时也减少了对环境的污染 6下列物质中,含有氧分子的是() A.O2 B.H2O2 C.CO2 D. SO2 7、预防“禽流感”可用O.5%的漂白粉溶液作为消毒剂。漂白粉的主要成分是次氯酸钙[Ca(ClO)2],次氯酸钙中氯元素的化合价是()A.+1价 B.+2价 C.+7价 D.-1价 8.分子模型可以直观的表示分子的微观结构(分子模型中,不同颜色、 示的分子是() A.HCHO B.CO2 C.NH3 D. CH4 9.下列分析判断正确的是( ) A.酸能够使紫色石蕊溶液变红,二氧化碳能使紫色石蕊溶液变红色,所以二氧化碳是酸 B.铁、铜都是金属单质,都能够置换出盐酸、稀硫酸中的氢 C.氧化物中含有氧元素,但是含有氧元素的化合物不一定是氧化物 D.点燃的木条伸入某无色气体中会熄灭,证明该无色气体一定是二氧化碳 10.下面是一些学生的认识,其中正确的是() A.在化学反应中加入催化剂一定能加快反应的速率 B.氧化反应就是物质与氧气发生的反应 C.在阴离子中,质子数一定少于核外电子 D.最外层电子数为8的粒子一定是稀有气体元素的原子 11.下列知识的归纳中,完全正确的一组是()数学九年级上册 圆 几何综合易错题(Word版 含答案)
六年级数学 错题集
初中化学常见错题集
中考经典错题集
最新初三数学易错题集锦
新苏教版小学六年级下册数学易错题集
中考化学错题精选100题
最新整理中考数学易错题集锦及答案