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高一数学必修一课课练答案
一、选择题
1．已知f(x)＝x－1x＋1，则f(2)＝()
A．1B.12C.13D.14
【解析】 f(2)＝2－12＋1＝13.X
【答案】 C
2．下列各组函数中，表示同一个函数的是()
A．y＝x－1和y＝x2－1x＋1
B．y＝x0和y＝1
C．y＝x2和y＝(x＋1)2
D．f(x)＝x2x和g(x)＝xx2
【解析】 A中y＝x－1定义域为R，而y＝x2－1x＋1定义域为{x|x≠1}；
B中函数y＝x0定义域{x|x≠0}，而y＝1定义域为R；
C中两函数的解析式不同；
D中f(x)与g(x)定义域都为(0，＋∞)，化简后f(x)＝1，g(x)＝1，所以是同一个函数．
【答案】 D
3．用固定的速度向如图2－2－1所示形状的瓶子中注水，则水面的高度h和时间t之间的关系是()
图2－2－1
【解析】 水面的高度h随时间t的增加而增加，而且增加的速度越来越快．
【答案】 B
4．函数f(x)＝x－1x－2的定义域为()
A．[1,2)∪(2，＋∞)
B．(1，＋∞)
C．[1,2]
D．[1，＋∞)
【解析】 要使函数有意义，需
x－1≥0，x－2≠0，解得x≥1且x≠2，
所以函数的定义域是{x|x≥1且x≠2}．
【答案】 A
5．函数f(x)＝1x2＋1(x∈R)的值域是()
A．(0,1)
B．(0,1]
C．[0,1)
D．[0,1]
【解析】 由于x∈R，所以x2＋1≥1,01x2＋1≤1，
即0y≤1.
【答案】 B
二、填空题
6．集合{x|－1≤x0或1x≤2}用区间表示为________．
【解析】 结合区间的定义知，
用区间表示为[－1,0)∪(1,2]．
【答案】 [－1,0)∪(1,2]
7．函数y＝31－x－1的定义域为________．
【解析】 要使函数有意义，自变量x须满足
x－1≥01－x－1≠0
解得：x≥1且x≠2.
∴函数的定义域为[1,2)∪(2，＋∞)．
【答案】 [1,2)∪(2，＋∞)
8．设函数f(x)＝41－x，若f(a)＝2，则实数a＝________.
【解析】 由f(a)＝2，得41－a＝2，解得a＝－1.
【答案】 －1
三、解答题
9．已知函数f(x)＝x＋1x，
求：(1)函数f(x)的定义域；
(2)f(4)的值．
【解】 (1)由x≥0，x≠0，得x0，所以函数f(x)的定义域为(0，＋∞)．
(2)f(4)＝4＋14＝2＋14＝94.
10．求下列函数的定义域：
(1)y＝－x2x2－3x－2；(2)y＝34x＋83x－2.
【解】 (1)要使y＝－x2x2－3x－2有意义，则必须－x≥0，2x2－3x－2≠0，解得x≤0且x≠－12，
故所求函数的定义域为{x|x≤0，且x≠－12}．
(2)要使y＝34x＋83x－2有意义，
则必须3x－20，即x23，
故所求函数的定义域为{x|x23}．
11．已知f(x)＝x21＋x2，x∈R，
(1)计算f(a)＋f(1a)的值；
(2)计算f(1)＋f(2)＋f(12)＋f(3)＋f(13)＋f(4)＋f(14)的值．
【解】 (1)由于f(a)＝a21＋a2，f(1a)＝11＋a2，
所以f(a)＋f(1a)＝1.
(2)法一 因为f(1)＝121＋12＝12，f(2)＝221＋22＝45，f(12)＝1221＋122＝15，f(3)＝321＋32＝910，f(13)＝1321＋132＝110，f(4)＝421＋42＝1617，f(14)＝1421＋142＝117，
所以f(1)＋f(2)＋f(12)＋f(3)＋f(13)＋f(4)＋f(14)＝12＋45＋15＋910＋110＋1617＋117＝72.
法二 由(1)知，f(a)＋f(1a)＝1，则f(2)＋f(12)＝f(3)＋f(13)＝f(4)＋f(14)＝1，即[f(2)＋f(12)]＋[f(3)＋f(13)]＋[f(4)＋f(14)]＝3，
而f(1)＝12，所以f(1)＋f(2)＋f(12)＋f(3)＋f(13)＋f(4)＋f(14)＝72.
[img]高一下册英语课课练检测试题及答案
在备考英语的过程中，一定少不了一些试题卷的题海战术。所以，认真地对待每一份试题吧!你真的可以从中收获不少呢!以下是由我收集整理的高一下册英语课课练检测试题，欢迎阅读!
高一下册英语课课练检测试题
1.--- Shall I tell John about it?--- No, you ______. I’ve told him already.
A. needn’t B. wouldn’t C. mustn’t D. shouldn’t
2. --- Why didn’t you come to see me?
--- I ______, but I was too busy yesterday.
A. like to B. should like to C. would like to have D. am going to
3. You can’t imagine that a well-behaved gentleman ______ be so rude to a lady.
A. might B. need C. should D. would
4. There was plenty of time; she ______.
A. mustn’t have hurried B. needn’t have hurried
C. may not have hurried D. wouldn’t have hurried
5. ---_____ it be Li Ping who broke the glass? --- No. It ____ be Wang Hai who did it.
A. Could; may B. Can; can C. May; must D. Can; must
6. When the old man was alive, he ______ sit for hours at the door.
A. would B. could C. must D. might
7. I’ve decided to take the job and I ______ change my mind.
A. mustn’t B. can’t C. won’t D. may not
8. She ______ into the thick forest alone on such a dark night.
A. dares not go B. dares not to go C. dare not to go D. doesn’t dare to go
9. My parents never remember my telephone number, and they always ______ look it up. A. must B. can C. should D. have to
10.-- Where is Jack? I can’t find him anywhere.-- He ___ his homework upstairs.
A. might have done B. must have done C. might be doing D. must do
11. I didn’t hear the phone. I ________ asleep.
A. must be B. must have been C. should be D. should have been
12. — When can I come for the photos? I need them tomorrow afternoon.
— They_________ be ready by 12:00.
A. can B. should C. might D. need
13. I___ such a mistake again.
A. will never make B. shall never make C. can never do D. need never do
14. He began to write two hours ago. He ______ have finished the article now.
A. must B. ought C. would D. had to
15. Looking at my determined face, the big boy ______ pick up the fight.
A. dares not B. dare not C. doesn't dare D. dares not to
16. — You know that you were driving 100 km an hour, don't you?
— No officer, I ____. This car doesn't do more than 80.
A. may not have been B. couldn't have been
C. mustn't have been D. shouldn't have been
17. I think he could have joined us, but he ____
A. doesn't B. did C. didn't D. couldn't
18. — You must phone us every week. — Yes, I _____.
A. must B. have to C. will D. should
19. Don't throw the bottles away. They ____ in the future.
A. may need B. are needed C. can be needing D. might be needed
20. — I wonder why Mr. Wang didn't attend the lecture. — He ____ another one.
A. could have B. must have C. might have had D. should have had
21. He was taken away by the police. He ___ for a robber.
A. must be mistaken B. was being mistaken
C. must mistake D. must have been mistaken
22. — I haven't seen Mr. White for weeks. — What _____ to him?
A. must have happened B. may have happened
C. can have happened D. may happen
23. — I didn't go to work yesterday afternoon because my car broke down.
— You ________ mine. I wasn't using it.
A. might borrow B. could have borrowed
C. can have borrowed D. ought to borrow
24. — A man answered the phone. I suppose it was her husband.
— It ___ her husband. He has been dead for ages.
A. mustn't be B. couldn't have beenC. may not have been D. mustn't have been
25. She ___ the hospital so soon, for she has not yet recovered.
A. wouldn't have left B. shouldn't have left
C. mustn't have left D. didn't have to leave
26. — I promise her daughter ____ get a nice present on her birthday.
— Will it be a big surprise to her?
A. should B. must C. would D. shall
27. — What's wrong with your pen'? — The ink ____ come out.
A. can't B. doesn't C. hasn't D. won' t
28. Tom, you are so lazy! This work ___ hours ago.
A. should finish B. must have finished
C. should have been finished D. might have finished
29.Since it is already midnight, we______.
A. had better leaving B. ought to have leave
C. should take our leave D. might as well leave
30.—Shall I turn on the television?
—No，I ________ watch it now. I want to go to bed.
A. shouldn’t B. couldn’t C. would rather not D. might not
31.— ________ you make so much noise? —Sorry. I’ll take care not to.
A. Can B. Must C. May D. Would
32.— Will you stay for lunch?
—Sorry, ________. My brother is coming to see me.
A. I mustn’t B. I can’t C. I needn’t D. I won’t
33.—Sara has just come back from New York and she looks very happy.
—She ________ her trip very much.
A. might enjoy B. should have enjoyed C. might have enjoyed D. must enjoy
34.You are doing in a wrong way. It ________ this way.
A. used to do B. is used to doing
C. used to be done D. was used to doing
35.— ________ Mary get disappointed if we tell her the news?
—I think she ________.
A. Will; may B. Will; shall C. Shall; will D. Shall; need
36. He _____ his parents about his failure in the exam.
A. dares not tell B. dares not telling C. dare not tell D. dares not to tell
37. --- Could I borrow your dictionary? --- Yes, of course you ____.
A. might B. will C. can D. should
38. I want to go to the chemist's, but you go with me.
A. need not B. must not C. need D. must
39. ─Must we finish the composition in class? ─No, you .
A. needn't B. mustn't C. won't D. shouldn't
40. --- _____ he start at once or wait for a while? --- Let him start at once.
A. Will B. Would C. Does D. Shall
41. --- Excuse me. Is this the right way to the Summer Palace?
--- Sorry, I am not sure. But it ______ be.
A. might B. will C. must D. can
42. --- I don’t mind telling you what I know.
--- You ______. I’m not asking you for it.
A. mustn’t B. may not C. can’t D. needn’t
43 --- Isn’t that Ann’s husband over there?
--- No. it _____ be him. I’m sure he doesn’t wear glasses.
A. can’t B. must not C. won’t D. may not
44. You _____ be tired – you’ve only been working for an hour.
A. mustn’t B. won’t C.can’t D. may not
45. Tom ought not to me your secret, but he meant no harm.
A. have told B. tell C. be telling C. having told
46. ---There was a lot of fun at yesterday’s party.
---You ____come, but why didn’t you?
A must have. B should. C need have. D ought to have
47---I heard they went skiing in the mountains last winter.
---It ____ true because there was little snow there.
A may not be B won’t be C couldn’t be D mustn’t be
(2010情态动词高考真题)
48. Jack described his father, who _a brave boy many years ago, as a strong–willed man
A. would be B. would have been C. must be D. must have been
49. You buy a gift, but you can if you want to.
A. must B. mustn't C. have to D. don't have to
50 I have told you the truth. ______ I keep repeating it?
A Must B Can C May D Will
51. I_______ have watched that movie —it’ll give me horrible dreams.
A. shouldn’t B. needn’t C. couldn’t D. mustn’t
52. Mark have hurried. After driving at top speed, he arrived half an hour early.
A. needn’t B. wouldn’t C. mustn’t D. couldn’t
53. — I take the book out? w_w w. km—I'm afraid not.
A. Will B. May C. Must D. Need
54 .Just be patient .You ______ expect the world to change so soon .
A. can’t B. needn’t C. may not D. whether
55. —I haven’t got the reference book yet, but I’ll have a test on the subject next month.
—Don’t worry. You______ have it by Friday.
A. could B. shall C. must D. may w_
56. May I take this book out of the reading room? No, you .
A. mightn’t B. won’t C. needn’t D. mustn’t
57.I’m afraid Mr. Harding _________see you now. He’s busy.
A. can’t B. mustn’t C. shouldn’t D .needn’t
58 .Doctors say that exercise is important for health, but it _______ be regular exercise
A.can B.will C.must D.may
59. ---Good morning. I've got an appointment with Miss Smith in the Personnel Department.
--Ah, good morning. You be Mrs. Peters.
A. might B. must C. would D. can
60. “You ____ have a wrong number,” she said. “There’s no one of that name here.”
A. need B. can C. must D. would
高一下册英语课课练检测试题答案
1—5 ACCBA 6---10 ACDDC 11___15 BBAAB
16__20 BCCDC 21___25 DCBBB 26—30 DDCDA
31—35 BBCCA 36—40 CCAAD 41—45 ADACA
46—50 DCDDA 51—55 AABAB 56—60 DACBC
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相关介绍：
作业，《辞海》解释：为完成学习方面的既定任务而进行的活动。
而《教育大辞典》则把完成学习任务的作业分为课堂作业和课外作业两大类。
课堂作业是教师在上课时布置学生当堂进行检测的各种练习，而课外作业是学生在课外时间独立进行的学习的活动，检测学生是否学会了课上的知识的一种方法，一般都是家庭作业。
智慧上进 高考总复习 单元滚动创新卷 地理第一单元的答案
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