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二次函数的基础训练题

二次函数的基础训练题

发表于2019-02-11 09:42 | 被阅读38次
内容关键词:二年级数学基础训练题,二年级语文基础训练题,三年级语文基础训练题,二次函数知识点,二次函数基础训练,四年级语文基础训练题,初一语文基础训练题,六年级数学基础训练题,七年级语文基础训练题。

1. 抛物线y=-x2+4x-3的开口向______,对称轴为__________,顶点p坐标为______________;与x 轴的交点是a 、b (a在b的左边),与y轴的交点是c ;当 时,随的增大而增大;△pab的面积= ;当满足 时,y>0.

2.已知二次函数y=x2-5x+1,当x=_______时,这个二次函数取得最_______值,为_________.

3.已知二次函数,当 时,这个二次函数的图像的对称轴为轴.

4.把抛物线y=ax2+bx+c先向左平移2个单位,再向下平移l个单位后,恰好与抛物线y=2x2+4x+1重合.请则a= ,b= ,c= .

5.直线y1=2x+3与抛物线y2=x2的交点坐标是_______,当满足 时,y1>y2.

6.已知二次函数,(1)若图像的对称轴是直线x=1, 那么它的顶点坐标是 ,

(2)若该函数有最小值为6,则m= ;(3)若图像与轴有2个交点,则m .

7.关于函数,下列判断中,正确的是 ( )

a、若、互为相反数,则与的函数值相等 b、对于同一个自变量,有两个函数值与它对应 c、对任一个实数,有两个与它对应 d、对任意实数,都有

8.设二次函数的图像的顶点在x轴上,则k的值为 ( )

a.-16 b.16 c.-8 d.8

▲9.已知二次函数y=ax2+bx+c(a<0)的图象如图,当-5≤x≤0时,下列说法正确的是( )

a.有最小值-5、最大值0 b. 有最小值-3、最大值6

第1篇:初二政治的基础训练题

  一、选择题:本大题共2小题,每小题分,共分。在备选答案中只有一项是符合题目要求的。请将你认为正确的答案的英文字母代号填入下面表格相应的方框中。

1、以下同学对于人生理想的认识错误的是()

A、小丽说:理想就是为自己设立的奋斗目标

B、小明说:人们的兴趣、爱好各有不同,应根据自己的实际情况,确立适合自己的理想

C、小亮:每个人都应该确立远大理想,争取当科学家

D、小娟说:做人应该脚踏实地,不应该过早地设计自己的人生

2、张艳今天学习弹琴,明天有想当作家,过了几天又想练体育,成为体育明星,结果什么也做不好。假如你是他的朋友,你最想对他说的是()

A、要立长志,切勿常立志

B、练体育是男孩子做的事,女孩子不适合

C、你只要管好自己的学习就行了,不要朝三暮四

D、你还是多学一点得好,这样你就会成为多才多艺的人

3、革命前辈周恩来,年少时就立下鸿鹄之志,一生献身革命、服务人民,成为让世人敬仰的国家总理。从周恩来人生的人生历程中我们得到的启示是()①我们要胸怀大志,严格要求自己,成为对社会有用的人②我们应追求崇高的人生理想,使自己变得更加高尚③我们要志存高远,争取当国家总理④周总理和我们生活的时代不同,志向也不应该一样

A、①②

B、①②④

C、①④

D、①③

4、在社会主义建设时期,雷锋、焦裕禄、王进喜、徐虎等英雄模范人物,之所以彪炳史册、光照千秋,根本原因是()

A、他们都是勤劳勇敢的人

B、他们都见义勇为、舍己救人

C、他们都有荣誉高于一切的思想

D、他们都树立了崇高的人生理想,并为之奋斗不息

5、一位中学生的“青春格言”是:所有成功的门都是须掩着的,不过这虚掩着的门不会自动打开,而是要靠你的双手才能把它推开。这句话给我们的启示是()①理想的实现需要靠艰苦奋斗②成才的关键在于自己的努力②只要付出就能成功④个人努力使获得成功的唯一条件

A、①②④

B、①②

C、②③④

D、①③

6、在人生发展的过程中,理想激励着我们不断超越自己,让我们充满了实现自身价值的喜悦,使我们的人生充满幸福。这段话说明()

A.理想必须立足我们的生活追求

B.理想总是指向我们人生的发展方向

C.理想表现为我们的奋斗目标

D.正确的理想是人生的动力

7、下列关于理想与现实的说法,不正确的是()

A.理想高于现实,总是指向未来,因此理想就是空想

B.由于外在环境的局限,理想与现实之间总会有些差距

C.由于自身条件的局限,理想与现实之间总会有些差距

D.理想的实现需要我们在现实中不断努力

8、每个人心中都有自己方方面面的理想,这些理想()①是我们在事业成就、未来职业、道德人格甚至家庭生活方面追求的目标②代表我们对生命的一种盼望③反映我们对生活的积极态度④就是现阶段我国各族人民的共同理想          A.①③④

B.①②③④

C.①②③

D.①②④

9、下列说法正确的是()①具体理想是可以发展变化的②具体理想可以有很多③要实现理想,必须不断增强自身能力,提高素质④正确的理想是青春的向导

A.①②

B.③④

C.①③④

D.①②③

第2篇:初一英语从句基础训练题

定语从句:

(一)基础:引导词---who, which, that, whom,

练习

I like cities___________are quiet and clean.

2.I prefer students _________are hard- working.

3.I hate TV shows _________ are noisy and boring.4.The music __________ is gentle and quiet attracts me a lot.

5.The food __________tastes delicious is not always healthy.

6.Those boys ___________ are playing basketballs over there are from Class Fifteen.

7.The books ____________ are written by Lu Xun are worth reading.

8.The town ___we visited last week is much larger than before.9.The book ___ he bought is very interesting.

(二)特例:只用that的情况

1先行词被___________或___________所修饰,或本身是______________________时,只能用 that,

2.被修饰的先行词为 ________________________________________________等不定代词时, 只能用 that.

3.先行词被 _____________________________________________等词修饰时,只能用 that,而不用 which。

4.先行词里同时含有______________________,如I can remember well the persons and some pictures that I saw in the room.

5. 以______________________引导的特殊疑问句,只能用that.如: Who is the girl that is crying?

练习

1. I am interested in everything___ is about the 2006 World Cup.

2. Is there anything___I can do for you? 3. This is the very bike ______I lost

4.To my surprise, he gave me nothing __ I need. 5.This is the best dictionary __ I have ever used.

6. He was the first person _______passed the exam.

7.He talked happily about the men and books________interested him greatly.

(三)whose

1. The student ______father works in the factory is sitting there.

2. I like the rooms ______windows face south.

3. This is the desk ______legs were broken.

4The woman ___ umbrella you took is angry about it.

5.Here comes a girl ___ handwriting is the best .

6The banana __skin is green can’t be eaten.7That tall tree _ leaves are yellow is very old.

(四)从句谓语单复数由先行词确定,时态由从句时间状语决定,不必跟主句保持一致。

1-He is one of the boys who ____ (doesn’t, don’t) finish doing homework.

2-I like films which ____(be) exciting and interesting.

3-Children who often ____(eat) junk food are easy to become fat and unhealthy.

4-That boy who _____(run) fastest is from our class.

5Those boys who ____ playing the guitar are from our school. (be)

6The trees which _____ (be) watered yesterday belong to them. 7The man who ____ over there is our teacher.(stand) 8Those boys who ____ playing the guitar are from our school. (be)

9Mr. Brown is one of the foreign experts _______ _________ (work) in China.

10I’m one of the boys ______ ________(like) English best.

(五)“介词+关系代词”注意: 介词的选用要考虑:

A.与先行词的搭配关系

1)I will never forget the day __________ I joined the army.

2) I will never forget the days ______ I worked here.

3) I will never forget the year ____________ my son went to college.

B. 与谓语动词的搭配习惯

1)Have you found the book ________I paid 29 dollars?

2)Have you found the book ________I spent 29 dollars?

3) Have you found the book _____________we learnt a lot?

4) Have you found the book _______she often talks?

关系副词的用法

练习:

1. It must be a good place ________________we can do a lot of exercise.

2.This is the village _________________we visited last week.

3.The house _______ we live in is very big./ The house _______ we live is very big

4. The woman ___________ talked to you just now is a doctor. The woman ______ you talked to is my sister.

The woman to ___________ you talked is my sister.

5. This is the hospital ____________ I was born in.

This is the hospital in _________I was born. This is the hospital____________ I was born.

综合练习一. 用适当的关系代词或关系副词填空

1. The boy ______ is wearing the black jacket is very clever.

2. This is the present ____he gave me for my birthday.

3.The man _______ talked to you just now is an engineer.

4. He talked about the teachers and schools _______ he had visited.

5. There is nothing in the world ______can frighten him.

6. We visited a factory _______makes toys for children.

7. Is this the place _______ your father once lived

8. I’ll never forget the days _______ I joined the League.

9The car______my father bought last month is beautiful.

10The man______hair is white is his grandfather.

( )1.Rosa likes music ___ is quiet and gentle. A. when B. that C. where D. who

( )2.--Is the girl _ is interviewing the manager of that company your friend--Yes, she is a journalist from CCTV.

A. whom B. which C. who D. whose

( )3 Yao Ming is a famous basketball star ___ is playing in the NBA. A. whose B. who C. what D. which

( )4. The doctor ___I am waiting for is Mr. Smith. A. which B. whom C. whose D. why

( )5. --- Do you know Hong Zhanhui? ---Yes. He’s the college student ____ has moved Chinese people a lot.

A. who B. which C. what D. whom

( )6. In my family, my sister is the only person __ loves chocolate. A. which B. who C. whom D. she

( )7. This is the place ____ the old man lived last year. A. when B. where C. that D.which

( ) 8. The song ___ Jay Zhou sings are popular with students. A. why B. whom C. what D. which

( )9. The farmer was very thankful to the doctor ___ treated his son. A. what B. which C. who D. whose

( )10.I like to live in a house__ is big and bright. A. that B. who C. how D. why

( )11. The young lady ___ we met yesterday is our new math teacher. A. what B. whose C. whom D. which

( )12. --Can you introduce the town to me? --OK. This is the town in __ I was born. A. that B. who C. which

( )13. Miss green is the only person __ can help you with your English. A. she B. whom C. which D. who

( )14. I like the second football match ___was held last week. A. which B. who C. that D. /

( )15. Is there anything ____ to you? A. that is belonged B. that belongs C. that belong D. which belongs

( )16. I hate people ___ don’t help others when they are in trouble. A. who B. which C. they

( )17. This is the only book ___I am looking for. A. that B. which C. who D. whom

( )18 Her sister__ you met at my home was a teacher of English. A. whom B. that is C. which D. who is

( )19 The book__is sold out at the moment. A.you need Bwhat you need C.which you need it D that you need it

( )20 I'm one of the boys ______never late for school. A. that is B. who are C. who am D. who is

( )21.__cleans the classroom can go home first. A. Anyone B. Those who C. However D. The one who

( )22. The old man __yesterday is a scientist.A.I spoke B. I spoke to C. whom I spoke D. that I spoke to him

中考定语从句真题演练

1.--- Is the girl __ is interviewing the manager of that company your friend? --Yes, she is a journalist from CCTV. A. whom B. which C. who D. whose

2. Do you still remember the movie _____ we saw last weekend? A. who B. what C. that D. whom

3. ---Who is your new English teacher? ---Elena, the woman ____ is wearing a red T-shirt over there.

A. 不填 B. whom C. whose D. who

4. Is that the man _____ helped us a lot after the earthquake? A. whose B. which C. when D. who

5. ---What are you looking for? --- I’m looking for the pen ___ I bought yesterday. A. who B. which C. whose

6. This is the novel_____ written by Guo Jingming. A. who B. what C. that D. /

7. We should be ready to help the people ____ are in trouble. A. whose B. whom C. which D. who

8. Two years has passed, but Chinese people still remember those exciting days ____ they spent during the Beijing 2008 Olympic Games. A. that B. who C. when

9. The magician _____ played magic tricks in 2008 CCTV Spring Festival Gala is Liu Qian. He is popular in China now. A. whose B. who C. which

10. July likes music very much. She likes music ____ she can dance to. A. what B. who C. that

11. At school, you should do the things _____ are allowed by the teachers. A. that B. when C. what

12. Thought is the key _____ opens the doors of the world. A. why B. where C. which D. who

13. The gentlemen ___ are coming to my office tomorrow are my classmates many years ago.

A. whom B. who C. those D. which

14. That’s the man _____ house was destroyed in the storm. A. that B. whose C. who D. which

15. The girl ____ I just talked with is Ben’s sister. A. whom B. which C. she

16. I love people ____ are friendly to others. A. which B. whose C. what D. who

17. It’s time to say goodbye to my school. I’ll always remember the people _____ have helped me.

A. who B. what C. which D. where

18. I like the teacher ____ classes are very interesting and creative. A. which B. who C. what D. whose

19. Do you know the boy ____ is sitting next to Peter? ---Yes. He is Peter’s friend. They are celebrating his ____ birthday. A. who, ninth B. that, nineth C. /, nineth D. which, ninth

20.ShaolinTemple__lies in the west of Zhengzhou welcomes the visitors from abroad.A.where B.which C.who

二、宾语从句

1宾语从句的学习要注意三个方面

第一:语序:在宾语从句中,一律用___________。

如Where does she live? ( Do you know?) ----Do you know where she lives?

***几个特殊的特殊疑问句

Which is the way to the nearest shop?/ What’s wrong with you?/ What’s up?/ What’s the matter?

这几个特殊疑问句本身就是陈述语序,在宾语从句中不需调整语序。

第二:时态; 1)如果主句是___________,宾语从句时态根据实际情况而定.

如:1. It’s going to rain. I think. ---I think it’s going to rain.

2. “I will go with you .” he says. ---He says he will go with me.

3. He studied English ten years ago. I know. I know he studied English ten years ago.

2)主句是___________,宾语从句要用___________。

如:It’s going to rain. I thought. ---I thought it was going to rain.

“I will go with you.” he said. ---He said he would go with me.

3). 若从句表达的是___________,规律,不管主句是什么时态,从句都用___________。

如1 The earth turns round the sun. The teacher told us---The teacher told us that the earth turns round the sun.

2 Light travels much faster than sound. She said … ---She said that light travels much faster than sound.

第三:连接词1)如果被连接的句子是___________,那么连接词用___________, (也可省)

如1. He’ll be back in a month. ( I hear…) I hear ( that ) he will be back in a month.

2. I have been to the Great Wall once. ( He tells me…) He tells me ( that ) he has been to the Great Wall once.

2.)如果被连接的句子是___________,则用连接词___________

如:*Does he live in that house? ( She asked me …) She asked me if/ whether he lived in that house.

*Have you finished your homework? ( I want to know…) I want to know if you have finished your homework.

3) ___________句,用原句中的特殊疑问词引导:what, who, where, when, which, why, how (many/ much/ often/ long/ old).如: Who are you waiting for? Can you tell me? --- Can you tell me who you are waiting for?

What did he do yesterday? I don’t know. ---I don’t know what he did yesterday.

***其中 以wh- 疑问词或how 引导的宾语从句与动词不定式可相互转换

如I don’t know what I can do.可以说成 I don’t know what to do.

The policeman showed me where I could get books. 可以说成The policeman showed me where to get books.

Can you tell me how I can make a kite?可以说成 Can you tell me how to make a kite?

4).宾语从句___________。在_________________________________等动词所跟的宾语中,如果从句谓语是否定的,一般要将否定词not转移至主句谓语上去,而将从句谓语改为肯定形式。如:I don’t think he has time to play with the girl.

二.综合练习

1.I want to know __

A. whom is she looking after B. whom she is looking C.whom is she looking D.whom she is looking after

2.I don't know _________ the day after tomorrow.

A.when does he come B.how will he come C.if he comes D.whether he'll come

3.Could you tell me _________ the nearest hospital is?A.what B.how C.whether D.where

4.Could you tell me _________ the radio without any help?

A.how did he mend B.what did he mend C.how he mended D.what he mended

5.I don't know if he____ tomorrow. If he _____,I'll tell you.

A.comes, comes B.will come, will come C. will come, comes D. comes, will come

6.Do you know where _________ now?A.he lives B.does he live C.he lived D.did he live

7.Do you know what time ___?A.the train leave B.does the train leave C.will the train leave Dthe train leaves

8.I don't know _________ .Can you tell me,please? A.how the two players are old

B.how old are the two players C.the two players are how old D.how old the two players are

9.The small children don't know _________ . A.what is their stockings in

B.what is in their stockings C.where is their stockings in D.what in their stockings

10.I can't understand _________ . A.what does Christmas mean B.what Christmas does mean

C.what mean Christmas does D.what Christmas means

11 . When the job______, let me know. A .do B .done C .is done D .finished

12 .She asked me if I knew__ .A .whose pen is it B .whose pen it was C whose pen it is D .whose pen was it 13 .Miss Li wants to know _____________next week . A .when my uncle leaves

B .when will my uncle leave C .where my uncle will stay D .where does my uncle stay

14 .Could you tell me ________________with the money ? A .how to do B .what should I do C .how I should do D .what I should do

中考宾语从句真题演练

( )1. Everyone can play an important role in the society.As members,we should try our best to do__.

A. what we should do B. what should we do C. how we should do

( )2. --I really hope to keep in touch with Lily. --Sorry. I don't know __.

A. what her name is B. what her job is C. what her number is D. when she left

( )3 —Can you tell me ______? —By doing more speaking. A how I will improve my English

B. which way can I choose C. how do I deal with my English D. what’s wrong with my English

( )4. How lovely the dog is ! Can you tell me _____?

A. where did you get it B. where will you get it C. where you got it

( )5.. --Excuse me, could you tell me ____ the book about aliens? --Sure, take the escalator to the second floor.

A. where I can buy B. where can I buy C. when can I buy D. when I can buy

( )6-“Do you know_ have our summer holiday?”-“Next week.”A.when will we B.when are weC. when we will

( )7 ---Do you know ____ the MP4 yesterday? -- Sorry, I’ve no idea about it.

A. how much did he pay for B. how much he paid for C. he paid for how much D. he paid how much for

( )8--What time will Mr. Brown be back to China? -- Sorry. I don’t know ___.

A. when did he go abroad B.why he is going abroad C.how soon will he be back Dhow long he will stay abroad

( )9. You can’t image ___ when the pupils received these nice presents on Children’s Day.

A. how they were excited B. how excited they were C. how excited were they D. they were how excited

( )10. –Can you tell me ______?–She is in the computer lab.

A. where Linda was B. where is Linda C. where was Linda D. where Linda

( )11. –Do you know _______ the Capital Museum? –Next Friday.

A. when will they visit B. when they will visit C. when did they visit D. when they visited

( )12. He wanted to know____the English party.

A. when will we have B. when we will have C. when would we have D. when we would have

( )13. I want to know_______.

A. when we should arrive at the airport B. when should we arrive at the airport

C. when the airport we should arrive at D. when the airport should we arrive at

( )14. –David, look at the man in white over there. Can you tell me_______? –He is a doctor.

A. who is he B. who he is C. what is he D. what he is

( )15. –Do you know___the girl in red is? –I’m not sure. Maybe a teacher. A. when B. how C. where D. what

( )16. Your T-shirt is so cool. Could you tell me ________?

A. where you buy it B. where do you buy it C. where you bought it D. where did you buy it is

( )17. I really want to know ____ . A. what is wrong with my brother

B. how will he go to Beijing tomorrow C. if had he bought that car D. where did he go yesterday

( )18. Excuse me, sir. Could you tell me ?

A.where is the bank nearestB. where is the nearest bankC.where the nearest bank isD. the nearest bank is where

( )19.Lily’s mother looked for her for half an hour, but couldn’t find ____.

A. What Lily was. B. What was Lily C. Where Lily was D. Where was Lily

( )20--Could you tell me___? He is wanted by the head teacher.--Sorry, I’ve no idea.But he _ here just now.

A. where Tim was, was B. where is Tim,was C. where Tim is,was D.where Tim is,is

三、状语从句:

一).条件状语从句:引导词为:if, unless。

形式:

主句_______________, 从句______________.

练习:

1.I am waiting for my friend.____________, I’ll do shopping alone.

A.If she comes B.If she will come C.If she doesn’t come D.If she didn’t come

2.I am sure I can make it better, if our teacher _________me a second chance.A.give B.gave C.gives D.will give

3.The art club is for members only. You can’t go in___you are a member. A.unless B.Because C.if D.though

4.I ________the CDs to you if I have time tomorrow. A.will return B.returned C.have returned D.return

5. 1)You won’t pass the final exam ___________(除非)you work hard.

2) The children __________ climb the mountain if it __________________(不下雨)

3) _______________________if he comes. (给我打电话)

二)时间状语从句:(常见从属连词有when,before, after, until, as soon as, while…)

1)As soon as he _____in Paris, he will call you. A.arrive B.arrived C.arrives

2)Don’t leave until the rain_______.A.stopped B.stops C.stopping D.stop

3)You can go skating after you ____A.finish the job B.finished the job C.finishing the job

4) I’ll tell her the good news when he _____ back. A.came B.comes C.come

5)Father was watching TV ________ Mum was washing dishes. A.before B. while C.after D.until

6)I was watching TV ____ you called me last night. A.when B.while C.until D.after

7) I ______ here since I came to China. A.lived B.have lived C.am living D. had living

8).My grandma didn’t go to sleep______ I got back home. A.till B.until C.since D.when

三)原因状语从句: (常用连词有because, since, as)

1. Tom is ill at home, _____he can’t come here. A.so B.if C.because D.and

2.—Why did you come to school late this morning?--___I watched the Football World Cup until 12:00 last night. A.If B.Because C.Since D.Though

3.I hope to go to France some day__there are many museums there.A.though B. unless C. because D. where

四)结果状语从句:由so… that…/such…that/so that引导的从句(so后接形、副原级)

1)与too…to…句型的转换:

He ran so fast that I couldn’t catch up with him. =______________________________________________

The box is so heavy that I can’t carry it= ___________________________________________________

2)“so… that +从句”与“enough to”的替换

He’s so strong that he can carry the box.=___________________________________________________

He is not old enough to go to school.=________________________________________________________

3)so that…/ so…that…/such…that ____________________________________________________________

如:He got up early in the morning so that he could catch the early bus.

The boy is so strong that he can lift up the heavy stone. He is such a clever boy that all of us like him.

练习:

1.--He was _______tired ______he fell asleep as soon as he lay down. -- Oh, we can go out and let him have a good rest..A.too;to B.so; that C.enough; to D.such; that

2.There were _______many people ____I couldn’t find where she is. A.so;that B.so;as C.such;that D.as;that

3. He ran as fast as possible__he could reach school on time. A.in order to B so as to C such that D so that

4. They are ___interesting books __ I want to read them once more.A.so that B.such…that C.too…to D.so…that

综合练习

1.You may leave the classroom when you__writing.A.will finish Bare finishing C have finished Dhad finished

2. Would you give Johnny this letter if you ________ to see him this week.

A. will happen B. happen C. are happened D. happened

3. She was busy, ____she couldn’t go to your birthday party last night. A. and B. so C. or D. but

4. English is ________ a useful language ________ it is spoken in many countries of the world.

A. so…that B. such…that C. so…because D. such…because

5. Don’t cross the street __ the traffic lights are green. A. after B. until C. while D. since

6. Your dream won’t come true__ you know what your dream is. A. after B. unless C. while D. since

7. --Could you ask him if he __to my birthday party next Sunday? –I will, if I __ him this afternoon.

A. comes, meet B. will come, will meet C. comes, will meet D. will come, meet

8. Sarah is ______ a hard-working girl ______ she often works late into night.

A. so; that B. too; to C. such; that D. not only; but also

状语从句真题练习

1.—Where was your brother at this time last night?—He was writing an e-mail ___I was watching TV at home.

A.as soon as B.after C.until D.while

2.The film “Kung Fu Panda” is___interesting__I would like to see it again. A.such,that B.too,to C.as,as D.so that

3.Tom will call me as soon as he ___home. A.gets B.has got C.got D.will get

4. We will have no water to drink___we don’t protect the earth. A.until B.before C.though D.if

5.We won’t start the meeting ___our teacher arrives. A.though B.until C.while D.or

6.Bob promises to join in the football match____he has to help his parents on the farm..

A. if B.as C. unless D. when

7.___it’s difficult to make her dream come ture, she never gives up. A.Though B.Unless C.Because D.If

8.---Could you tell me when Mr. Li___in Huanggang?---Sure. When he ___, I’ll call you.

A.arrives; will arrive B.will arrive; arrives C.arrives; arrives D.will arrive; will arrive

9.In summer, food goes bad easily__it is put in the refrigerator. A.until B.if C.unless

10.A moment, please. I’m checking if Mr. Smith__free tomorrow. A.is B.being C.to be D.will be

11.I didn’t go to bed __my mother came back late last night.A.so; B.until C.though

12.Hurry up,___you will miss the early train. A. or B.and C.if D.unless

13.---Tommy, do you know if Frank___to the theatre with us this Sunday if it ___?---Sorry, I have no idea.

A.will go, is fine; B.goes, is fine C.will go, is going to be fine D.goes; will be fine

14.What a beautiful painting it is! I’ve never seen ___painting. A.such a B.a C.such D.this better

15.I don’t know __he will come tomorrow.___he comes, I’ll tell you.

A.if, Whether B.whether, Whether C.if, That D.if, If

复合句综合检测

( )1.Is this museum_ they visited last month? A. that B. where C. which D. the one

( )2. Is that book ____ he borrowed on Friday? A. that B. which C. who D. the one

( )3 The second book__I want to read is Business at the Speed of Thought. A. which B. what C. that D. as

( )4 –Do you know the man __is running along the street? A who B which C whom

( )5. Without friendship, one can’t be happy although he is rich enough. As for me, I will never forget the days ___I spent with my dearest friend. A that B when C who

( )6 This is the best TV play __we have seen this year. A when B what C who D that

( )7--Have you found the information about famous people ____you can use for report?

--Not yet. I’ll search some on the Internet. A which B who C what D whom

( )8--Have you been to the Sports Center___ is just opened in town? - -No, no yet.

A where B who C that D when

( )9 --Bob, where do you work?--I work for a company ___sells cars. A which B where C what

( )10____ have finished the work can leave. A. Those who B. Anyone C. The one who

( )11. The building that ___new is our school. A. is B. are C. was D. were

( )12. The pandas that we saved ____better now. A. are B. were C. is D. was

( )13 This is the only thing _________ I have lost.A.which B.that C.where

( )14.--Could you tell me____?--Sorry, I don’t know. I was not at the meeting. A. what does he say at the meeting. B what did he say at the meeting. C. what he says at the meeting D. what he said at the meeting

( )15. No one can be sure____ in a million years.

A. what man looks like B. what will man look like C. man will look like what D. what man will look like

( )16. -- Could you tell me ____?-- She is a student in Eton School.

A. where Kate is studying B. how Kate studies C .why Kate was studying D. when Kate studied

( )17.-- Could you tell me___ yesterday?-- About two hours. A. How long it takes to fly to Guilin B. How long it took to fly to Guilin C.How long does it take to fly to Guiln D. How long did it take to fly to Guilin

( )18. Please tell me____.A. what is wrong with the boy B. what is the boy wrong C. what wrong the boy is

( )19. She will hate him when she _more about him .A.knowsB .know C.will know Dis going to know

( )20. --Excuse me. Do you know_____?--Sorry, I don’t know. A. where is No. 1 Middle School

B. where No. 1 Middle School is C. No. 1 Middle School is where D. No. 1 Middle School where is

( )21. At the science museum,the boys and girls get to know__________. A. what is the spaceship like

B. what the spaceship looks like C. how the spaceship looks 1ike D. how does the spaceship1ook like

( )22. He didn’t tell me ____.

A. which floor did he live on B. which floor he lived on C. which floor he lived D. he lived on which floor

( )23. I’m new here. Could you tell me__, please?A. when does the first bus arrive B. when the first bus arrives

C. when did the first bus arrive D.when will the first bus arrive

( )24. I wonder how long_______school?

A. has he been away from B. he has been away C. he has left D. he has been away from

( )25. ---We can use MSN to talk with each other on the Internet. ---Really? Will you please show ____it? ‘

A. what to use B. how to use C. how can I use D. where can I use

( )26. The teacher asked the students . A. if they were interested in chatting online

B. when was Albert Einstein born C. what they will do with the computers D. how often they go to movies

( )27---Could you tell me how long __the book?--Three days.

A.I can keep B.can I borrow C.I can borrow D. can I keep

( )28.I can’t understand ___the boy alone at home.

A.why she left B.did she leave C.why had she left D.why she leave

( )29. You will not succeeded if you ______ harder. A. will work B. won’t work C. work D. don’t work

( )30.Write clearly __your teacher can understand you correctly. A.since B.for C.because Dso that

( )31.______he failed , he went on doing the experiment .A. Even B. Yet C. Although D. in spite of

( )32.The dog went out while we __ supper. A. had B. had had C. were having D. would have

( )33.His brother has worked there ________ he left schoo A.when B. after C. since D. until

( )34.The boy didn’t stop talking ____the second bell rang. A.when B. until C. after D. because

( )35. __I came into the office, the teacher were having a meeting.A.While B. When C. Once D. Since

( )36.I was about to leave my house __ the telephone rang. A.while B. as C. when D. since

第3篇:2017最新基础训练题

A级基础训练:课内巩固与强化(时间30分钟,满分50分)

一、一锤定音(在正确的读音下面 )(8分)

仓(cāng lūn) 储(chǔ zhǔ) 烹(pēng hēng) 判(bàn pàn)

综(zōng zhōng) 宅(zǎi zhái) 浴(sú yù) 盗(dào tāo)

二、火眼金睛,辨字组词(16分)

脑( ) 温( ) 仓( ) 浴( )

恼( ) 湿( ) 苍( ) 俗( )

密( ) 输( ) 盗( ) 伏( )

蜜( ) 愉( ) 盈( ) 状( )

三、词语巧搭配(在括号里填上合适的词语)(12分)

( ) 的乐曲 ( ) 的环境 ( ) 的生活

( ) ( ) ( )

( ) ( ) ( )

四、填量词(8分)

一( )住宅 一( )电脑 一( )竖杆 一( )手机

一( )家具 一( )仓库 一( )装置 一( )文章

五、选词填空(6分)

既又 只有才 只要就 如果就

1、浴室:( )想一回家( )能洗上热水澡,要先发指令。

2、大门外:电脑会根据气象资料,为主人提供一个( )节能( )舒适的环境。

3、卧室:睡觉前,( )按一下开关,整栋房子( )会进入休息状态。

4、进入:( )主人下达同意入内指令后,大门( )会打开。

B级智能训练:课外复习与拓展(30分钟内完成,满分50分)

六、啄木鸟门诊(请你改病句)(12分)

1、在某城市的中心,有一座实验性。

____________________________

2、我们即将终于进入电脑时代。

____________________________

3、电脑为主人提出了舒适的生活条件。

____________________________

4、我们学校全体师生和我们班同学都参加了电脑培训。

____________________________

七、阅读大舞台(23分)

太好啦 太好啦 听妈妈说 我家的电脑跨上了信息高速路 我情不自禁地欢呼起来 电脑网络这个新鲜玩意儿到底是什么呢 爸爸告诉我:它就像一个遍布全球的巨大蜘蛛网,把每一个国家,每一个城市,甚至每一个家庭连接到一起。在互联网里,可以查阅信息,便捷地了解周围的世界;可以用自己的电子邮箱和全世界的小朋友建立联系;还可以参加网络上的购物、拍卖等各种活动。有了网络,咱们的地球就变成一个小村庄,五湖四海的人们可以随时进行交流。

1、在文中缺标点符号的地方补上标点符号。(5分)

2、写近义词(4分)

欢呼──( ) 便捷──( )

3、回答问题(10分)

⑴ 新鲜在字典里的意思有:A、食物没有变质;B、花朵没有枯萎;C、空气经常流通;D、事物出现不久,还不普遍。文中新鲜一词的含义应选( )。(2分)

⑵ 信息高速路是指_____,在互联网里可以_____,可以_____,还可以_____。(8分)

4、结合你平时的知识,把你知道的网络的用处写下来。(4分)

_________________________________

__________________________

八、小小设计师(15分)

如果由你设计电脑住宅,你打算怎样设计?请把你的设计写下来或者画下来。

第4篇:毕业班语文基础训练题

(一)填空题。(29分)

1、看拼音写汉字。(6分)

sǒng zhǒu kāng lǒng qì xiàn

( )立 扫( ) ( )慨 ( )断 哭( ) ( )慕

2、学校有“欧、孙、王、张、倪、胡、费、曹”几位老师,按音序表中的顺序排列,排在第三位的应是 老师。(1分)

3、选择恰当的成语填在下面一段话的括号里。(只填成语的编号)(4分)

①神通广大 ②高瞻远瞩 ③口若悬河 ④诡计多端

⑤ 好高骛远 ⑥神机妙算 ⑦夸夸其谈 ⑧阴谋诡计

诸葛亮( ),他断定刘备与孙权联合抵抗曹操,可以三分天下。诸葛亮亲自去东吴见孙权,在会谈中,他( )舌战群儒,终于促成了孙、刘联盟。周瑜嫉妒诸葛亮的才能,几次耍弄()要置诸葛亮于死地,但都没有得逞。诸葛亮( )使周瑜不得不佩服。

4、按要求写词语。(4分)

(1)写出表示非常害怕的四字词语:

(2)表示争论激烈的四字词语:

5、 则罔, 则殆。(2分)

6、回顾课内外读过的古诗词,其中有很多诗歌表达了朋友间依依惜别之情,请默写两句。

如:劝君更尽一杯酒,西出阳关无故人。(这两句除外)。(2分)

7、《孔子游春》:大自然多像一位 !广袤的大地是她 ,茂密的森林是她飘逸的长发, 是她明亮的眸子,和煦的轻风是她甜蜜的絮语……(3分)

8、从《莫泊桑拜师》这篇课文中,你悟到的写作方法是: 。(2分)

9、除了“三打白骨精”,你还喜欢《西游记》中“ ”这个故事,在你喜欢的这个故事中,唐僧师徒面对的妖精是“ ”。(2分)

10、读书要有选择,现在的你最适合选择哪些读物呢?为什么?请简要说说。 。(3分)

(二)选择题。(请将正确选项的序号填在括号里)(5分)

1、“青箬笠,绿蓑衣,斜风细雨不须归”中的“须”,当取( )这个意思。

A、胡须 B、等待、等到 C、应当、一定要

2、( )不是《西游记》中的故事。

A、三打白骨精 B、三借芭蕉扇 C、逼上梁山 D、大闹天宫

3、陈老师一向穿着整洁,不苟言笑,给人很严厉的印象。——这句话中的“穿着”读()

A、chuān zhe B、chuān zhuó C、chuān zháo

4、不是倒顺词的是( )

A、雪白——白雪 B、背包——包背 C、样式——式样

5、与做学问有关的诗句是( )

A、纸上得来终觉浅,绝知此事要躬行。

B、却看妻子愁何在,漫卷诗书喜欲狂。

C、粉骨碎身全不怕,要留清白在人间。

(三)判断题。(正确的请打“√”,错误的请打“×”)(5分)

1、“这是条地道。”和“他讲一口地道的北京话。”这两句话中的“地道”读音相同,意思不相同。()

2、“蔼”字用音序查字法应查“A”。()

3、詹天佑是“中国导弹之父”。( )

4、卢沟桥事变拉开了中华人民对日全面抗战的序幕。( )

5、《简·爱》是英国女作家夏洛蒂·勃朗特写的。( )

(四)仿写句子。(6分)

1、他跑得快。(改为比喻句)

2、一阵风吹来,柳条儿轻轻地摇摆。(改为拟人句)

3、肖邦深爱着自己的祖国和人民。(改为反问句)

第5篇:初一地球基础训练题

一、选择题

1.麦哲伦船队环球航行的成功说明了()

A.大陆漂移B.人类活动可以影响气候

C.地球是一个球体D.世界各国经济发展不均衡

2.读图1-1-11,甲点的位置是()

A.北半球、东半球B.北半球、西半球

C.南半球、东半球D.南半球、西半球

3.一架飞机从济南起飞,一直朝正东方向飞行,最终可以()

A.到达北极点B.到达南极点

C.回到济南D.不能回到济南

4.地球自转产生了()

A.极昼极夜现象B.五带的产生

C.昼夜交替D.季节的变化

读南极我国两个考察站分布图1-1-12,回答5~6题。

5.a、b是我国的两个南极科学考察站,b站在a站的什么方向()

A.东南方向B.西南方向C.东北方向D.西北方向

6.a、b两考察站所在的半球,叙述正确的是()

A.a站在西半球,b站在东半球B.a站在东半球,b站在西半球

C.两考察站都在西半球D.两考察站都在东半球

7.下列四幅图,哪一幅图中的P点位于东半球、北半球,并且与“坐地日行八万里”的诗句最吻合()

8.太阳直射北回归线时,我国正处在()

A.春分B.夏至C.秋分D.冬至

9.热带和温带的分界线是()

A.北极圈B.回归线C.南极圈D.赤道

10.北京市一年中,白昼最长的时间是()

A.春分B.夏至C.秋分D.冬至

二、综合题

11.读经纬网图1-1-13,分析回答问题。

(1)写出图中A点的经纬度_________,__________。

(2)图中A点位于B点的_________方向。

(3)当北京时间为6月15日5点时,B点的时刻应为__________。

(4)A点位于下列哪个国家()

A.中国B.巴西C.澳大利亚D.美国

12.读图1-1-14,回答下列问题。

(1)该图所示________日的光照分布,此时,太阳的直射点在_________。

(2)图中A、B、C、D四点中,处在高纬度地区的是_________,处在热带的是_________,四季变化最明显的是_________。

(3)A、B、C、D四点中,位于东半球的是_________。

(4)B点位于A点的___________方向,D位于C的_________方向。

(5)夏至日,白昼时间最长的地点是___________。

(6)国庆节期间昼夜长短如何?

13.读地轴与地球公转轨道面的交角图1-1-15,回答问题。

(1)从北极上空看地球自转方向为___________。

(2)地球公转方向与地球自转方向___________。

(3)地球公转轨道形状为___________。

(4)地球公转过程中其地轴与地球公转轨道面夹角为__________。

(5)由于上述现象,地球上产生了__________变化。

(6)试着应用几何学解释北回归线度数与地轴和地球公转轨道面夹角的关系。

参考答案

1.C2.A3.C4.C5.A6.A7.D8.B9.B10.B

11.(1)120°E30°S(2)西南(3)6月15日6点(4)C

12.(1)夏至北回归线(23.5°N)(2)AB、CD(3)A、B、D(4)西南东南(5)A

(6)昼短夜长

13.(1)逆时针(2)一致(3)近似圆形的椭圆形(4)66.5°(5)四季(6)略

第6篇:世说新语基础训练题及答案

1、解释句中加点的字词:

A、陈太丘与友期行,期日中。

期:___________________ 行:___________________

B、过中不至,太丘舍去,去后乃至。

过:___________________ 乃:___________________

C、非人哉!与人期行,相委而去。

委:___________________ 去:___________________

D、友人惭,下车引之。元方入门不顾。

惭:_________ 引:_________ 顾:_________

2、补全下面句中的省略成分:

陈太丘与友期行,期日中。过中不至,太丘舍去,去后乃至。

_______________________________________________________________

3、《世说新语》是六朝志人小说的代表作,是________(朝代)人________(姓名)组织编写的。

4、“谢太傅寒雪日内集,与儿女讲论文义”这一句总述了谢太傅家人咏雪的背景,极精炼地交代了时间“________”、地点“________”人物________事件“_______”等要素。

5、下列说法不正确的一项是( )

A、“期日中,过中不至”这一句话点明了不守信用的人是客而不是陈太丘

B、“与儿女讲论文义”一句中“儿女”指的是谢太傅的儿子和女儿

C、“未若柳絮因风起”这句话的意思是:还不如化做风把柳絮吹得满天飞舞

D、“尊君”、“家君”,前者是敬词,对别人父亲的一种尊称;后者是谦词,是对人称自己的父亲

6、解释下列各句中加粗的词:

⑴ 与友期约________

⑵ 去后乃至________

⑶ 撒盐空中差可拟________

⑷ 俄而雪骤________

7、《咏雪》一文结尾谢太傅对两个人的回答的优劣未做评定,只是“大笑乐”,十分耐人寻味,请简要说说你对此的理解。

_______________________________________________________________

【参考答案】

1、A、约定时间 外出 B、超过 才 C、舍弃 离开 D、惭愧 拉 回头看

2、陈太丘与友期行,期日中。(友)过中不至,太丘舍(友)去,(太丘)去后(友)乃至。

3、南朝宋 刘义庆

4、时间寒雪日 地点内集 人物谢太傅与儿女 事件讲论文义

5、B

6、⑴ 约定 ⑵ 才 ⑶ 化 ⑷ 一会儿,不久

7、答:此题答案为开放性的。①对两个答案都表示满意 ②“笑”前喻,“乐”后喻 ③为“柳絮”一喻而“笑乐”。

第7篇:《济南的冬天》基础训练题及答案

1、下列画线的字注音全正确的一组是( )

A、济南(jǐ) 伦敦(lén) 看护(kān)

B、水藻(zhǎo) 垂柳(chuí) 着落(zhuó)

C、暖和(huo) 宽敞(chǎng) 澄清(chéng)

D、狭窄(zhái) 发髻(jié) 镶边(xiāng)

2、下列各组词书写全正确的一组是( )

A、贮蓄 唤醒 水藻 绿萍

B、括风 地毯 薄雪 慈善

C、摇蓝 响亮 境界 澄清

D、奇迹 邪射 狭窄 宽敞

3.下列句子中画线词语的解释没有结合句意的一项是( )

A、自然,在热带的地方,日光永远是那么毒,响亮的天气,反有点叫人害怕。(晴朗无云)

B、就是下点小雪吧,济南是受不住大雪的,那些小山太秀气!(娇柔而秀美)

《济南的冬天》基础训练题及答案

C、看吧,由澄清的河水慢慢向上看吧……(清澈明亮)

D、……自上向下全是那么清亮,那么蓝汪汪的,整个的是块空灵的蓝水晶。(灵活而不可捉摸)

4、阅读下面的句子,回答问题:

“请闭上眼睛想:一个老城,有山有水,全在天底下晒着阳光,暖和安适地睡着,只等春风来把它们唤醒,这是不是个理想的境界?”

⑴ “这”指的是( )

A、一个老城。

B、理想的境界。

C、晒着阳光,暖和安适地睡着。

D、一个老城,有山有水,全在天底下晒着阳光,暖和安适地睡着,只等春风来把它们唤醒。

⑵ “这是不是个理想的境界”这句话是( )

A、陈述句 B、反问句

C、设问句 D、一般疑问句

5、与例句修辞方法不同的一句是( )

例句:一个老城,有山有水,全在天底下晒着阳光,暖和安适地睡着。

A、空中,半空中,天上,自上而下全是那么清亮,那么蓝汪汪的,整个的是块空灵的蓝水晶。

B、就凭这些绿的精神,水也不忍得冻上。

C、它们安静不动地低声说:“你们放心吧,这儿准保暖和。”

D、这一圈小山在冬天特别可爱,好像是把济南放在一个小摇篮里。

【参考答案】

1、C

2、A

3、D

4、阅读下面的句子,回答问题:

⑴ D

⑵ B

5、A

第8篇:声音的产生与传播基础训练题

1.一切发声的物体都在 ,拨动的琴弦发声靠的是琴弦的 ,鼓发声时用手按住鼓面,鼓声就消失了,这是因为 .

2.如果将发声的 记录下来,需要时再让物体按照记录下来的 规律去 ,这样就会产生与原来一样的声音.早期的 就是利用这一原理记录声音的.随着科学技术的进步,人们还发明了用 和记录声音的方法.

3.声音的传播需要物质,物理学中把这样的物质叫做 ,其中 体、 体和 体都可以传播声音,它们都是介质.

4.在“神舟”五号载人飞船上,宇航员杨利伟只能用无线电交谈,因为太空中没有 ,说明 不能传播声音.

5.声音在空气中以 形式传播.

6.水中的鱼被岸边的脚步声吓跑了,说明了 能传播声音.

7.声音在不同介质中传播的速度是 的,在同一种介质中,温度不同,声音的传播速度也不同.在15℃时,声音在空气中传播速度是 m/s,声音在 体、 体中比在空气中传播得快.

8.物体发声的共同特征是 .

9.将耳朵贴在长铁管的一端,让另外一个人敲一下铁管的另一端,你会听到 个敲打的声音.第一个声音是由 传播的,第二个声音是由 传播的,原因是 .

判断题(10~15)

10.一切发声的物体都在振动.( )

11.蝈蝈和蝉发声时,没有物体在振动.( )

12.振动停止以后,声音就消失了.( )

13.声音在每秒内传播的距离叫声速.( )

14.声音在空气中的传播速度为340m/s.( )

15.声音在固体中的传播速度一定比在液体中大.( )

16.下列关于声音传播的说法中,不正确的是( )

A.真空不能传声

B.声音在不同介质中的传播速度一般不同

C.学生听到教师的讲课声是靠空气传播的

D.在同中介质中声音传播速度是相同的

17.小华在钢水管的一头敲一下,小珍在另一头却听到三下声音,这三下声音依次是由下述哪种物质传播的( )

A.钢、空气、水 B.钢、水、空气

C.水、空气、钢 D.空气、水、钢

18.关于声音的下列说法正确的是( )

A. 发声的物质不一定在振动

B. 声音可以在真空中传播

C. 利用回声可以测海底深度

D. 声音在空气中比在水中传播得快

19.我们在研究声在空气中是怎样传播时,与水波的传播进行比较,这种研究物理问题的方法是( )

A.比较法 B.类比法

C.转换法 D.控制变量法

20.拿一把有弹性的真尺,一只手把真尺按在桌面上,使它的一半伸出桌面外,另一只手轻轻将伸出桌外的部分的直尺往下拉,如图1.1-1所示,然后放手,让它上下跳动,你看到了什么?你听到了什么?此实验说明了什么?

参考答案

1. 振动,振动,鼓面停止振动

2.振动,振动,振动,机械唱片,磁带,激光唱盘

3.介质,固,液,气

4.空气,真空

5.声波 6.液体 7.不同,340,固,液

8.发声体都在振动

9.2,铁管,空气,声音在固体铁管中传播速度比在空气中大

10.√ 11.× 12.× 13.√ 14.× 15.×

16.D 解析:声音的传播速度不仅跟介质有关,还跟温度有关.

17.B 解析:一般情况下声音在固体中的传播速度比在液体中快;在液体中的传播速度比在气体中快.

18.C 解析:发声的物体一定振动,A选项错;声音的传播需要介质,B错误;声音在气体中传播比在固体、液体中慢,D错;已知声音在海水中的传播速度,测出收到回声所用的时间,利用公式v= 即可求出海底的深度.

点拨:物体振动发声与听到声音是两回事,利用回声测距离时,要特别注意回声所用时间与通过距离的对应关系.

19.B 解析:类比法是物理学中常用的一种研究问题的方法,通过把两个相似的物理量进行类比,可使我们要学习的知识简单化.而比较法是把两个相近的物理量进行比较,找出它们的异同点,便于我们熟练地掌握知识.

20.看到了尺子在振动;听到了声音;说明了声音是由物体的振动产生的.

第9篇:《绿色蝈蝈》基础训练题

1、根据拼音写词语:

xī sū( ) shǔn xi( ) gōu huǒ( )

xuān xiāo( ) cuàn duó( ) shòu liè( )

2、解释下列句子画线词语的含义:

⑴ 能听到弱肉强食处四周的绿叶丛中,蝈蝈在窃窃自语。

弱肉强食:

⑵ 那是一只蝈蝈正啄着处于绝境的蝉的肚子。

绝境:

3、指出下列句子中运用了哪些修辞方法:

⑴ 时不时发出一阵非常尖锐而急促、近乎金属碰撞般的清脆响声,这便是蝈蝈的歌声和乐段,其余的则是伴唱。( )

⑵ 我从来没有见过像螳螂那样捕杀姊妹、吞吃丈夫的残暴行径。( )

4、判断下列句子是平实说明,还是生动说明:

A、计算机能用来计算,这只是它的一种功能,它还有其他多种功能。用作计算的工作量大约只占1/7,6/7的工作量作其他用途。

B、耳朵灵敏的人,能听到弱肉强食处四周的绿叶丛中,蝈蝈在窃窃自语。那像是滑轮的响声,很不引人注意,又像是干皱的薄膜隐隐约约的窸窣作响。

C、逗号表示句中内部的一般性停顿。例如:“据说苏州园林有一百多处,我到过的不过十多处。”

D、天上的云,真是姿态万千,变化无常。它们有的像羽毛,轻轻地飘在空中……

【参考答案】

1、窸窣 吮吸 篝火 喧嚣 篡夺 狩猎

2、解释下列句子画线词语的含义:

⑴ 指弱者被强者欺凌、吞并

⑵ 没有出路的境地

3、指出下列句子中运用了哪些修辞方法:

⑴ 比喻、拟人

⑵ 拟人

4、平实说明是用简洁的语言,不加任何修饰、描写、抒情和议论等。生动说明则借助描写和叙述等表达方式,运用比喻、拟人等修辞方法对事物进行具体形象的描写。因此

平实说明的有A、C,生动说明的有B、D。

第10篇:二次函数的基础训练题

1. 抛物线y=-x2+4x-3的开口向______,对称轴为__________,顶点p坐标为______________;与x 轴的交点是a 、b (a在b的左边),与y轴的交点是c ;当 时,随的增大而增大;△pab的面积= ;当满足 时,y>0.

2.已知二次函数y=x2-5x+1,当x=_______时,这个二次函数取得最_______值,为_________.

3.已知二次函数,当 时,这个二次函数的图像的对称轴为轴.

4.把抛物线y=ax2+bx+c先向左平移2个单位,再向下平移l个单位后,恰好与抛物线y=2x2+4x+1重合.请则a= ,b= ,c= .

5.直线y1=2x+3与抛物线y2=x2的交点坐标是_______,当满足 时,y1>y2.

6.已知二次函数,(1)若图像的对称轴是直线x=1, 那么它的顶点坐标是 ,

(2)若该函数有最小值为6,则m= ;(3)若图像与轴有2个交点,则m .

7.关于函数,下列判断中,正确的是 ( )

a、若、互为相反数,则与的函数值相等 b、对于同一个自变量,有两个函数值与它对应 c、对任一个实数,有两个与它对应 d、对任意实数,都有

8.设二次函数的图像的顶点在x轴上,则k的值为 ( )

a.-16 b.16 c.-8 d.8

▲9.已知二次函数y=ax2+bx+c(a<0)的图象如图,当-5≤x≤0时,下列说法正确的是( )

a.有最小值-5、最大值0 b. 有最小值-3、最大值6

本文标题:二次函数的基础训练题

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