报纸答案--高一广东(第19期)(B版)

报纸答案--高一广东(第19期)(B版)
报纸答案--高一广东(第19期)(B版)

2010-2011学年高一配合外研新标准版广东专版第19期测试题答案解析

B版

B1版Keys:(One possible version选择题除外)词语专练

一、1. anxious 2. normal

3. overweight

4. nearby.

5. connection

6. likely

7. realize 8. distraction

9. lose 10. complex

11. contemporary 12. aspects

13. autograph 14. poster

15. drama

二、a. rare b. breathe

c. ban

d. reduce

e. mix

f. alive

g. adopt h. exhibition

i. replace j. argue

1. alive

2. arguing

3. breathe

4. rarely

5. adopt

6. mixture

7. banned 8. exhibition

9. reduce 10. replace

三、1-5 DDACA

6-10 ABAAC

词组专练

一、1. had broken into

2. in total

3. taking exercise

4. every now and then

5. give up

6. care about

7. be crazy about

8. are similar to

9. put off

10. were impressed with

二、1. had a temperature

2. lie down

3. begin with

4. belong to

5. be addicted to

6. had taken your advice

7. In order to

8. make a note of

9. take turns

10. To our surprise

B2 版Keys:

阅读训练营1-3 CAD

新题型聚焦1-5 DCEBF

完形专练

1-5 DADCA

6-10 BBCAD

15-20 CBABA

B3版Keys: (One possible version)

阅读方略

1.shopping carts

2.It was to make shopping easier and attract more business.

3.Because few customers used his carts

4.Because he wanted to promote his shopping carts.

5.He was a smart businessman was getting

anxious.

写作一招鲜

1.With no plan in mind, the lazy man was getting

anxious.

2.On hearing his mother’s voice, the boy calmed

down.

3.He is the last person I want to share a room with.

4.I can’t enjoy the service of your company more.

5.Looking out of the hotel window, he saw

somebody singing in the yard.

B4版Keys: (One possible version)

语法小测

I. 1. since 2. As

3. Since

4. when

5. While

6. when

7. until 8. as soon as

9. because 10. for

II. 1. to do; to help 2. to persuade

3. to bring

4. repairing; to go

5. Seeing; to see

6. keeping

7. drawing; collecting

8. Having passed

9. meeting 10. living

III. 1. will 2. will

3. will

4. is going to

5. am going to

6. will

7. will; will 8. will

9. will 10. is going to IV. 1. had visited 2. had been

3. had covered

4. had searched; found

5. had hoped; forgot

6. had done

7. finished; paid; left

8. had stayed

9. got; had lift

10. reached; had cooked

二、 1. called 2. had Seen

3. got

4. had been

5. suggested

6. agreed

7. had planned 8. left

9. had expected 10. had

V. 1. It; keeping 2. In order to

3. so interesting a

4. From time to time

5. does he talk

6. Having found

7. Turn

VI. 1. returned; had he been

2. It is no use arguing

3. what to do; what not to do

4. ran the bad man

5. such rapid progress that it may make you

feel sleepy.

句型专练

一、1. While crossing

2. so clever that

3. Put your heart; and

4. as a result of

5. It wasn't until; that; took up m et each other

6. With; to meet

7. to send

8. It seemed that; was thinking about

二、

1. If you are seen smoking in public, you’ll be fined.

2. The teacher entered the classroom with a book in

his hand.

3. The money is enough for me to buy a new

computer

4. Eat less fatty food,or you' II be overweight.

5. The biggest side effect of the medicine is that it

may make you feel sleepy.

6. I was so nervous that I didn't know what to say.

7. It was at a New Year party that we first met

each other.

8. He lives in a house as far away as 1,000

kilometers from here.

高一英语测试卷含答案

第二部分:英语知识运用(共二节,满分45分) 第一节:单项填空(共15小题,每小题2分,满分30分) 从A、B、C、D四个选项中,选出一个可以填入空白处的最佳选项。 21. ── Do you need a ride? —— No, thanks. I ____ walking. A.prefer B. want C. used to D. take 22. He _____ one day _____ a famous NBA player. A. thinks of , being B. dreams of , being C. dreams about, to be D. make up , being 23. Your parents may be angry with you for a little while, but____ , they love you. A. above all B. in all C. at all D. after all 24. ——What about having a drink? —— ____________. A. Good idea B. Help yourself C. Go ahead, please D. Me, too 25. In most of the western countries, English is spoken ____ the first language. A. as B. like C. with D. for 26. Football is played all over the world, so it is considered a _____ game. A. usual B. healthy C. common D. universal 27. The man ___ killed two policemen will be sentenced to death. A. which B. whom C. who D. whose 28. There is no doubt ______ our life will be better and better. A. if B. when C. whether D. that 29. In his talk, he gave us _____ on how to improve our reading. A. news B. advice C. messages D. notes 30. Mr Green, with his wife and kids, ____ to China next Sunday. A. come B. is coming C. are coming D. comes 31.Great changes ____ in the countryside, and a lot of new houses ___________ . A. have been happened; have set up B. have taken place; have been set up C. have taken place; have built D. were taken place; were built

人教版高一数学必修1测试题(含答案)

人教版数学必修I 测试题(含答案) 一、选择题 1、设集合{}{}{}1,2,3,4,5,1,2,3,2,5U A B ===,则()U A C B =( ) A 、{}2 B 、{}2,3 C 、{}3 D 、{}1,3 2、已知集合{}{}0,1,2,2,M N x x a a M ===∈,则集合 M N ( ) A 、{}0 B 、{}0,1 C 、{}1,2 D 、{}0,2 3、函数()21log ,4y x x =+≥的值域是 ( ) A 、[)2,+∞ B 、()3,+∞ C 、[)3,+∞ D 、(),-∞+∞ 4、关于A 到B 的一一映射,下列叙述正确的是 ( ) ① 一一映射又叫一一对应 ② A 中不同元素的像不同 ③ B 中每个元素都有原像 ④ 像的集合就是集合B A 、①② B 、①②③ C 、②③④ D 、①②③④ 5、在221 ,2,,y y x y x x y x ===+=,幂函数有 ( ) A 、1个 B 、2个 C 、3个 D 、4个 6、已知函数()213f x x x +=-+,那么()1f x -的表达式是 ( ) A 、259x x -+ B 、23x x -- C 、259x x +- D 、21x x -+ 7、若方程0x a x a --=有两个解,则a 的取值范围是 ( ) A 、()0,+∞ B 、()1,+∞ C 、()0,1 D 、? 8、若21025x =,则10x -等于 ( ) A 、15- B 、15 C 、150 D 、 1 625 9、若()2log 1log 20a a a a +<<,则a 的取值范围是 ( )

高一英语试卷及答案.docx

高一英语试题 (命题;张华荣) 说明: 1.本试题测试内容为牛津高中英语(模块一)第一单元内容。 2. 本试题分卷一和卷二两部分。共七大题,86 小题, 7 页。试题满分150 分,考试时间100 分钟。 3.卷一选择题用 2B 铅笔填涂在答案纸上,卷二非选择题答案直接写在试题上。 卷一(选择题,三大题,共 75 分) 一.单项填空(共15 小题,每小题 1 分,计 15 分)。 从 A、 B 、 C、 D 四个选项中,选出可以填入空白处的最佳选项。 1.“ I am sorry I broke your mirror .” “ Oh, really ____B____. ” A. It s’ok with me. B. It doesn ’tmatter . C. Don ’tbe sorry. D. I don ’tcare. it is to jump into a river on a hot summer day ! A.what fun B. how fun C. what a fun D. what funny 3. After ____B__ , he realized that he was wrong in doing that . A. sometimes B. some time C. sometime D. some times 4. I, ___D____your good friend , will try my best to help you out . A. who ,is B. which ,is C. that ,is D. who , am 5. Who can think of a situation___C_____ this word can be used A. which B. that C. where D. in that 6. The doctor advised Tom strongly that he should take a holiday ,but ___A____ didn ’thelp. A. it B. who C. which D. he you believe that in___B___ a rich country there should be ______ many poor people A. such ,such B. such ,so C. so ,so D. so ,such way you thought of ___B______ the work is very good . A. doing B. to do C.that do D. which to do ’ll remember the time ___C____ we spent together in the country . A. when B. at which C. that D. during which I bought an ancient vase , ____B___was very reasonable. A. which price B. the price of which C. its price D. the price of that ’s a long trip and we ’ll have to___A____ early tomorrow morning . A. start off B. go off C. take off D. put off ____D___ the office as he was passing ,but Mary was out . A. called for B. called up C. called on D. called at can ___A___ us in the discussion if you ______. A. join ,wish to B. join in ,want to C. attend , don ’twant to D. take part in , hope so the internet is bridging the distance between people ,it may also be breaking some homes or will cause other family problems.while 引步状 从句,意思是然。。。但是,尽管?? 但是多放于句首 A. when B. while C. as D. if

高一数学试题及参考答案

高一数学试题及参考答案 时量:120分钟分值:150分 参考公式:球的表面积,球的体积,圆锥侧面积 一、选择题:本大题共12小题,每小题5分,满分60分.在每小题给出的四个选项中,只有一项是符合题目要求的.请在答题卡上填涂相应选项. 1.(集合的运算)集合,,则() A.B.C.D. 2.(函数的概念)下列四个函数中,与表示同一函数的是() A. B. C. D. 3.(直线的截距)直线在轴上的截距为,则() A. B. C. D. 4.(函数的单调性)下列函数中,在区间上是增函数的是() A.B.C.D. 5.(直线平行)已知直线和直线,它们的交点坐标是() A.(0,1)B.(1,0)C.(-1,0)D.(-2,-1) 6.(函数的图像)当时,在同一坐标系中,函数与的图象是() (A) (B) (C) (D) 7.(异面直线所成的角)在右图的正方体中,分别为棱和棱的中点,则异面直线和所成的角为() A.B.C.D. 8.(函数的零点)已知函数的图像是连续不断的,有如下,对应值表: 1 2 3 4 5 6 132.5 210.5 -7.56 11.5 -53.76 -126.8 函数在区间上有零点至少有() A.2个 B. 3个 C .4个 D. 5个 9.(球的体积与表面积)已知正方体的内切球(球与正方体的六个面都相切)的体积是,那么球的表面积等于() A. B. C. D. 10.(函数的奇偶性和单调性)若偶函数在上是增函数,则下列关系式中成立的是()A.B. C.D. 11.(指对数的综合)三个数的大小关系为() A. B. C. D. 12.(函数综合) 对于函数定义域中任意的有如下结论 ①② ③④ 当时,上述结论中正确的序号是() A. ①② B. ②④ C. ①③ D. ③④

高一数学函数试卷及答案

高一数学函数试卷及答 案 SANY GROUP system office room 【SANYUA16H-

函数测试题 班级 姓名 学号 成绩 一、选择题:(本题共8小题,每小题4分,共32分,在每小题给出的四个选项中,只有一项是符合题目要求的) 1.函数y = ) A )4 3 ,21(- B ]4 3,21[- C ),4 3[]2 1,(+∞?-∞ D ),0()0,2 1(+∞?- 2.下列对应关系f 中,不是从集合A 到集合B 的映射的是( ) A A=}{是锐角x x ,B=(0,1),f :求正弦; B A=R ,B=R ,f :取绝对值 C A=+R ,B=R ,f :求平方; D A=R ,B=R ,f :取倒数 3二次函数245y x mx =-+的对称轴为2x =-,则当1x =时,y 的值为 ( ) A 7- B 1 C 17 D 25 4.已知???<+≥-=)6()2()6(5 )(x x f x x x f ,则f(3)为( ) A 2 B 3 C 4 D 5 5.二次函数2y ax bx c =++中,0a c ?<,则函数的零点个数是( ) A 0个 B 1个 C 2个 D 无法确定 6.如果函数2()2(1)2f x x a x =+-+在区间(],4-∞上是减少的,那么实数a 的取值范围是( ) A 3-≤a B 3-≥a C 5≤a D 5≥a 7.若132 log

最新高一英语上学期期末测试题(含答案)

11-12学年高一上学期期末考试 英语 本试卷分第Ⅰ卷(选择题) 和第II卷(非选择题) 两部分,共120分。考试时间120分钟。 第I卷(选择题三部分共85分) 第二部分英语知识运用(共两节, 满分35分) 第一节单项填空(共15小题;每小题1分,满分15分) 请认真阅读下面各题,从题中所给的A、B、C、D四个选项中,选出最佳选项,并在答题卡上将该项涂黑。 21. Such ________ medical equipment is in ________ danger of breaking down, if not take n good care of. A. a; the B. a; / C. /; the D. /; / 22. Let’s paint one side of the paper red, and _______ side black. A. the other B. another C. the others D. one another 23. Last week, only two people came to look at the house, _______ wanted to buy it. A. none of them B. both of them C. none of whom D. neither of whom 24. _______ the Internet is of great help, I don’t think it’s a good idea to spend too much time on it. A. If B. Because C. Although D. As 25. The manager of the company told us that very little _______ was made of the waste material in the past. A. cost B. value C. use D. matter 26. If you aren’t interested in the subjects your teachers suggest, you can ______ some of them. A. enjoy B. drop C. leave D. prove 27. His movie won several awards at the film festival, _______ was beyond his wildest dream. A. which B. that C. that D. it 28.—The window is dirty. —I know. It _______ for weeks. A. hasn’t cleaned B. didn’t clean C. wasn’t cleaned D. hasn’t been cleaned 29. You can’t imagine ______ when they received these nice Christmas presents. A. how they were excited B. how excited were they C. how excited they were D. they were how excited 30. The under-water meeting in Maldives has been put off _______ the bad weather. A. in charge of B. in search of C. instead of D. because of 31.—What about going to the cinema this evening? —Oh, I don’t know. I’ve got a bit of a headache. _______, John’s coming to see me, so I ought to stay in. A. However B. In other words C. What’s more D. Though 32.—Cathy, the door bell is ringing! I’m doing the dishes. —Mum, I see who it is. A. would B. will C. am about to D. am going to 33. The hotel wasn’t perfectly good, but I ________ in many worse hotels.

2018高一数学上学期期末考试试题及答案

2018第一学期期末考试 高一数学试题 第Ⅰ卷(选择题 共48分) 参考公式: 1.锥体的体积公式1 ,,.3 V Sh S h =其中是锥体的底面积是锥体的高 2.球的表面积公式2 4S R π=,球的体积公式3 43 R V π=,其中R 为球的半径. 一、选择题:本大题共12小题,每小题4分,共48分,在每小题给出的四个选项中,只有一项 是符合题目要求的. 1.已知全集{0,1,2,3},{1,3}U A ==,则集合U C A = ( ) A .{}0 B .{}1,2 C .{}0,2 D .{}0,1,2 2.空间中,垂直于同一直线的两条直线 ( ) A .平行 B .相交 C .异面 D .以上均有可能 3.已知幂函数()α x x f =的图象经过点? ?? ?? 2, 22,则()4f 的值等于 ( ) A .16 B.116 C .2 D.1 2 4. 函数()lg(2)f x x =+的定义域为 ( ) A.(-2,1) B.[-2,1] C.()+∞-,2 D. (]1,2- 5.动点P 在直线x+y-4=0上,O 为原点,则|OP|的最小值为 ( ) A B .C D .2 6.设m 、n 是两条不同的直线,α、β是两个不同的平面,则下列命题中正确的是 ( ) A .若m ∥n ,m ∥α,则n ∥α B .若α⊥β,m ∥α,则m ⊥β C .若α⊥β,m ⊥β,则m ∥α D .若m ⊥n ,m ⊥α, n ⊥β,则α⊥β 7.设()x f 是定义在R 上的奇函数,当0≤x 时,()x x x f -=2 2,则()1f 等于 ( ) A .-3 B .-1 C .1 D .3

最新高一英语试题及答案

单项选择(20分) 16. He bought a knife and fork ________. A. to eat B. to eat with C. for eating D. to eat by 17. The little village which lies __________ the railway for 20 miles is ___________ the great man was born. A. off; where B. at; when C. to; how D. by; why 18. The window which hasn’t been cleaned for at least 3 weeks requires ____. Who’d like to take the job? A. to clean B. cleaning C. cleaned D. being cleaned 19. Everyone present at the meeting agreed to stick to the _____ that everyone should be treated fairly. A. purpose B. ambition C. principle D. level 20. After the war, that country _______ their defense works in case of the next unexpected attack. A. raised B. strengthened C. increased D. powered 21. Great efforts have been ____to improve people’s living conditions in China in the past two years. A. got B. won C. made D. did 22. When he came back with plenty of money, his father ______ three days before. A. had died B. was dead C. died D. had been dead 23. The fire was finally ______ after the building had ______ for two hours. A. put off; caught fire B. put away; been on fire C. put out; caught fire D. put out; been on fire 24. He did everything he could _______ the old man. A. to save B. save C. saving D saved 25.—Shall I give you a hand with this as you are so busy now? —Thank you.__________ A. Of course you can B. If you like C. it’s up to you D. It couldn’t be better 26. Everyone has periods in their lives _____ everything seems very hard. A. when B. where C. which D. that 27. When he heard the news, he hurried home,______ the book ______ on the desk. A. leaving; lying open B. to leave; lying open C. left; lying open D. leaving; lying opened 28. Who do you think he would _____ a letter of congratulation to our monitor? A. have written B. have to write C. have write D. have been writing 29. Taiyuan, _____ in the centre of Shanxi province is a most beautiful city. A. located B. to locate C. locate D. locating 30. I was told that there were about 50 foreign students _____Chinese in the school, most____were from Germany. A. study, of whom B. study, of them C. studying, of them D. studying, of whom 31. Hurricane brought down a great number of houses, _____ thousands of people homeless. A. to make B. making C. made D. having made

高一数学试题及答案解析

高一数学 试卷 本试卷分第Ⅰ卷(选择题)和第Ⅱ卷(非选择题)两部分.满分150分.考试时间120分钟. 第Ⅰ卷(选择题,满分 50分) 一、选择题(本大题共10小题,每小题5分,共50分.在每小题给出的四个选项中,只有一项 是符合题目要求的,把正确的答案填在指定位置上.) 1. 若角αβ、满足9090αβ-<< B .cos2cos αα< C .tan 2tan αα> D .cot 2cot αα< 7. ABC ?中,若cot cot 1A B >,则ABC ?一定是( ) A .钝角三角形 B . 直角三角形 C .锐角三角形 D .以上均有可能 8. 发电厂发出的电是三相交流电,它的三根导线上的电流分别是关于时间t 的函数: 2sin sin()sin()3 A B C I I t I I t I I t πωωω?==+ =+且 0,02A B C I I I ?π++=≤<, 则? =( ) A .3π B .23π C .43π D .2 π 9. 当(0,)x π∈时,函数21cos 23sin ()sin x x f x x ++=的最小值为( )

(完整版)高一数学函数试题及答案

(数学1必修)函数及其表示 一、选择题 1.判断下列各组中的两个函数是同一函数的为( ) ⑴3 ) 5)(3(1+-+= x x x y ,52-=x y ; ⑵111-+=x x y ,)1)(1(2-+=x x y ; ⑶x x f =)(,2)(x x g =; ⑷()f x ()F x = ⑸21)52()(-=x x f ,52)(2-=x x f 。 A .⑴、⑵ B .⑵、⑶ C .⑷ D .⑶、⑸ 2.函数()y f x =的图象与直线1x =的公共点数目是( ) A .1 B .0 C .0或1 D .1或2 3.已知集合{}{} 421,2,3,,4,7,,3A k B a a a ==+,且* ,,a N x A y B ∈∈∈ 使B 中元素31y x =+和A 中的元素x 对应,则,a k 的值分别为( ) A .2,3 B .3,4 C .3,5 D .2,5 4.已知2 2(1)()(12)2(2)x x f x x x x x +≤-??=-<

人教新课标高一上学期英语期末试卷(含答案)

人教新课标高一上学期英语期末试卷 满分:150分考试时间:120分钟 第Ⅰ卷 第一部分听力(共两节,满分30分) 第一节(共5小题;每小题1.5分,满分7.5分) 听下面5段对话。每段对话后有一个小题,从题中所给的A,B,C三个选项中选出最佳选项,并标在试卷的相应位置。听完每段对话后,你有10秒钟的时间来回答有关小题和阅读下一小题。每段对话仅读一遍。 1.How d oes the man usually go to work? A.By subway. B.By bus. C.By car. 2.What kind of reading materials does the woman like best? A.Various newspapers. B.Science fiction. C.Magazines and periodicals. 3.What d oes the teacher think of the man's paper? A.Poorly written. B.Fairly good. C.Just so-so. 4.How many correct answers will the man have to get to pass the test? A.10. B.16. C.80. 5.What will Johnny do next? A.Go back home. B.Visit the doctor. C.Report to his mother. 第二节(共15小题;每小题1.5分,满分22.5分) 听下面5段对话或独白。每段对话或独白后有几个小题,从题中所给的A.B.C三个选项中选出最佳 选项。听每段对话或独白前,你将有时间阅读各个小题,每小题5秒钟;听完后,各小题将给出5秒钟的作 答时间。每段对话或独白读两遍。 听第6段材料,回答第6和第7两个小题。 6.Where does the conversation probably take place? A.At home. B.In a restaurant.

高中数学必修1课后习题答案完整版

高中数学必修1课后习题答案 第一章 集合与函数概念 1.1集合 1.1.1集合的含义与表示 练习(第5页) 1.用符号“∈”或“?”填空: (1)设A 为所有亚洲国家组成的集合,则:中国_______A ,美国_______A , 印度_______A ,英国_______A ; (2)若2 {|}A x x x ==,则1-_______A ; (3)若2{|60}B x x x =+-=,则3_______B ; (4)若{|110}C x N x =∈≤≤,则8_______C ,9.1_______C . 1.(1)中国∈A ,美国?A ,印度∈A ,英国?A ; 中国和印度是属于亚洲的国家,美国在北美洲,英国在欧洲. (2)1-?A 2 {|}{0,1}A x x x ===. (3)3?B 2 {|60}{3,2} B x x x =+-==-. (4)8∈ C ,9.1?C 9.1N ?. 2.试选择适当的方法表示下列集合: (1)由方程2 90x -=的所有实数根组成的集合; (2)由小于8的所有素数组成的集合; (3)一次函数3y x =+与26y x =-+的图象的交点组成的集合; (4)不等式453x -<的解集. 2.解:(1)因为方程2 90x -=的实数根为123,3x x =-=, 所以由方程2 90x -=的所有实数根组成的集合为{3,3}-; (2)因为小于8的素数为2,3,5,7, 所以由小于8的所有素数组成的集合为{2,3,5,7}; (3)由326y x y x =+??=-+?,得14x y =??=? , 即一次函数3y x =+与26y x =-+的图象的交点为(1,4),

高一数学必修1试题附答案详解

1.已知全集I ={0,1,2},且满足C I (A ∪B )={2}的A 、B 共有组数 2.如果集合A ={x |x =2k π+π,k ∈Z},B ={x |x =4k π+π,k ∈Z},则集合A ,B 的关系 3.设A ={x ∈Z||x |≤2},B ={y |y =x 2 +1,x ∈A },则B 的元素个数是 4.若集合P ={x |30,则a 的取值范围是

第一学期期末高一英语试卷及答案

盐城市第一中学2006-2007学年度第一学期期末考 试 高一年级英语试卷 卷面总分:150分考试时间:120分钟 友情提醒:第1至75题答案请用2B铅笔统一涂卡(机读卡),填涂在答题卡上。考试结束后只收第二卷和答题卡。 第一部分:客观题 一、听力:(共两节,满分30分) 第一节(共5小题;每小题分,满分分) 听下面5段对话。每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题。每段对话仅读一遍。 does the woman mean wants to meet the man tomorrow night. will be busy every day this week. will be able to see him on another day. program is the man going to watch first movie. soccer game. evening news. is the man doing now is a novelist. ’s doing nothing. is a reporter. does the man finish his speech something funny. laughing. being easy. are the two speakers a birthday party. the woman’s home. the hospital. 第二节(共15小题;每小题,满分分) 听下面5段对话或独白。每段对话或独白后有几个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。听每段对话或独白前,你将有时间阅读各个

(完整版)高一英语试卷及答案.doc

高一英语试题 (命;荣) 明: 1.本内容牛津高中英(模一)第一元内容。 2. 本分卷一和卷二两部分。共七大,86 小, 7 。分150 分,考 100 分。 3.卷一用 2B 笔填涂在答案上,卷二非答案直接写在上。 卷一(,三大,共75 分) 一.填空(共15 小,每小 1 分, 15 分)。 从 A 、 B、 C、 D 四个中,出可以填入空白的最佳。 1.“ I am sorry I broke your mirror . ” “ Oh, really ? ____B____. ” A. It s’ok with me. B. It doesn ’tmatter . C. Don ’tbe sorry. D. I don ’tcare. 2.___A_____ it is to jump into a river on a hot summer day ! A. what fun B. how fun C. what a fun D. what funny 3. After ____B__ , he realized that he was wrong in doing that . A. sometimes B. some time C. sometime D. some times 4. I, ___D____ your good friend , will try my best to help you out . A. who ,is B. which ,is C. that ,is D. who , am 5. Who can think of a situation ___C_____this word can be used ? A. which B. that C. where D. in that 6. The doctor advised Tom strongly that he should take a holiday ,but ___A____ didn ’thelp. A. it B. who C. which D. he 7.Can you believe that in ___B___ a rich country there should be ______ many poor people ? A. such ,such B. such ,so C. so ,so D. so ,such 8.The way you thought of ___B______ the work is very good . A. doing B. to do C. that do D. which to do 9.I’ll remember the time ___C____ we spent together in the country . A. when B. at which C. that D. during which 10.Rencently I bought an ancient vase , ____B___ was very reasonable. A. which price B. the price of which C. its price D. the price of that 11.It’s a long trip and we ’ll have to ___A____ early tomorrow morning . A. start off B. go off C. take off D. put off 12.John ____D___ the office as he was passing ,but Mary was out . A. called for B. called up C. called on D. called at 13.You can ___A___ us in the discussion if you ______. A. join ,wish to B. join in ,want to C. attend , don’twant to D. take part in , hope so 14.____B___ the internet is bridging the distance between people ,it may also be breaking some homes or will cause other family problems. while引步状从句,意思是然。。。但是,尽管??但是多放于句首A. when B. while C. as D. if

高中数学必修一课后习题答案(人教版)

人教版高中数学必修1课后习题答案(第一章集合与函数概念)人教A版

习题1.2(第24页)

练习(第32页) 1.答:在一定的范围内,生产效率随着工人数量的增加而提高,当工人数量达到某个数量时,生产效率达到最大值, 而超过这个数量时,生产效率随着工人数量的增加而降低.由此可见,并非是工人越多,生产效率就越高. 2.解:图象如下 [8,12]是递增区间,[12,13]是递减区间,[13,18]是递增区间,[18,20]是递减区间. 3.解:该函数在[1,0]-上是减函数,在[0,2]上是增函数,在[2,4]上是减函数,在[4,5]上是增函数. 4.证明:设 12,x x R ∈,且12x x <, 因为 121221()()2()2() 0f x f x x x x x -=--=->, 即12()()f x f x >, 所以函数()21f x x =-+在R 上是减函数.

5.最小值. 练习(第36页) 1.解:(1)对于函数 42()23f x x x =+,其定义域为(,)-∞+∞,因为对定义域内 每一个x 都有4242()2()3()23()f x x x x x f x -=-+-=+=, 所以函数42()23f x x x =+为偶函数; (2)对于函数 3()2f x x x =-,其定义域为(,)-∞+∞,因为对定义域内 每一个x 都有33()()2()(2)()f x x x x x f x -=---=--=-, 所以函数 3()2f x x x =-为奇函数; (3)对于函数 21 ()x f x x +=,其定义域为(,0)(0,)-∞+∞ ,因为对定义域内 每一个x 都有 22()11 ()()x x f x f x x x -++-==-=--, 所以函数 21 ()x f x x +=为奇函数; (4)对于函数 2()1f x x =+,其定义域为(,)-∞+∞,因为对定义域内 每一个x 都有22()()11()f x x x f x -=-+=+=, 所以函数 2()1f x x =+为偶函数. 2.解:()f x 是偶函数,其图象是关于y 轴对称的; ()g x 是奇函数,其图象是关于原点对称的. 习题1.3(第39页) 1.解:(1)

相关文档
最新文档