高中英语语法情态动词专项练习题一
高中英语情态动词专项练习题
高中英语情态动词专项练习题(1)(1)(总11页)--本页仅作为文档封面，使用时请直接删除即可----内页可以根据需求调整合适字体及大小--高中英语情态动词专项练习题一、单选.1.Just be patient .You _________ expect the world to change so soon.A. can’tB. needn’tC. maynot D. will not2. Teachers recommend parents ______ their children under 12 to ride bicycles to school for safety.A.(should) not allowB. do not allowC. mustn’t allowD. couldn’t allow3. I_______ have watched that movie —it’ll give me horrible dreams.A. couldn’tB. needn’tC. shouldn’tD. mustn’t4. —Are you coming to Jeff’s party?—I’m not sure. I ____go to the concert instead.A.mustB. wouldC. shouldD. might5.Mary __be in Paris, for I saw her in the town only a few minutes ago．6. A．mustn't B．can't C．shouldn't D．may not7.—_____the news be true?8.—No, it_____be true.9.A. Can, can’t B. May, can’t C. May, may not D. Must, mustn’t10.As you worked late yesterday, you ___ have come this morning.A. needn’tB. may notC. can’tD. mustn’t8. Mr. White_____ at 8:30 for the meeting, but he didn’t show up.A. should arrive have arrivedC. should had arrivedD. should be arriving9. —Catherine, I have cleaned the room for you.—Thanks. You ____ it. I could manage it myself.A. needn’t do ’t have doneC. mustn’t doD. shouldn’t have done10. He ______ have completed his work; otherwise, he wouldn’t be enjoying himself by the seaside.A. should C. wouldn’t D. can’t11.— Who did it—___________ you ask It was Joe, of course.A. MayB. MustC. ShouldD. Need12. —What’s wrong with you?—Oh, I am sick．I _____ so much ice cream just now．A.shouldn’t eat B．mustn’t eatC．couldn’t have eaten D．shouldn’t have eaten13. —Will it take me long to get to the Sunshine Hotel?—No, it _______ take you long. I t’s not the rus h hour now.A. shouldn’tB. sha n’tC. mustn’tD. needn’t14. —I failed to catch the early bus because I overslept thismorning．—You have stayed up too late last night．A．could B．would C．should D．must15．—What kind of car do you want to haveA large one?—Well，it_______ be large. T hat’s not important．A．mustn’t B．shouldn’t C．can’t D．needn’t 16. — I think I’ll give Bob a ring.—You _____. You haven’t been in touch with him for ages.A. willB. mayC. have to D．should17. 一Helen, will you be at the party tonight?一Yes，but I really ____________as I have so much homework to do．’t B．mustn’t C．shouldn’t D．won’t 18.—Can I have a word with you, mum?—Oh, dear, if you _______.A. can B．must C. may D. should19.—May I smoke here?—If you ____, choose a seat in the smoking section.A. shouldB. couldC. may D．must20. How _____ you say that you really understand the whole story if you have covered only part of the article.A. canB. mustC. needD. may21. Why _____ you always leave your dirty clothes in the bedroom?A. needB. canC. may D．must22. You ____ be tired — you’ve only been working for an hour.A. must notB. won’t ’t D. may not23. —Is Jack on duty today?—It ____ be him. It’s his turn tomorrow.A.mustn’tB. won’t ’t D. needn’t24.Tom, you ____ leave all your clothes on the floor like this!A.wouldn’tB. mustn’tC. needn’tD. maynot25.John, look at the you play the piano at such a late hour?26.A.MustB. CanC. MayD. Need27.There ____ be any difficulty about passing the road test since you have practiced a lot in the driving school.A.mustn’tB. shan’tC. shouldn’tD. needn’t28.—Lucy doesn’t mind lending you her dictionary.-She ____. I’ve already borrowed one.’t B. mustn’t C. needn’t D. shouldn’t 28. —I’ve taken someone else’s green sweater by mistake.—It ___ Harry’s. He always wears green.A.has to beB. will beC. mustn’t beD. could behurried. After driving at top speed ,he arrived half an hour early. A. needn’t B. wouldn’t C. mustn’t D. couldn’t30. ——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. couldB. shallC. mustD. may31. Jack described his father, who _____a brave boy many years ago, as a strong-willed man.A. would beB. would have beenC. must beD. must have been32. —Good morning. I've got an appointment with Miss Smith in thePersonnel Department.—Ah, good morning. You be Mrs. Peters.A. mightB. mustC. wouldD. can33. —May I take this book out of the reading room?—No, you . You read it in here.A. mightn’tB. won’tC. needn’tD. mustn’t34. —Sorry, Professor Smith. I didn't finish the assignmentyesterday.—Oh, you have done it as yesterday was the deadline.A. mustB. mustn’tC. shouldD. shouldn’t35. I have told you the truth . I keep repeating it?A. MustB. CanC. MayD. Will36. —I don’t care what people think.—Well, you_______.A. couldB. wouldC. shouldD. might37. The girl _________ out alone at night.A. dare not goB. dare not to goC. does not dare goD. dares not go38. —Hi, Tom. Any idea where Jane is?—She________ in the classroom. I saw her there just now.A. shall beB. should have beenC. must beD. might have been39. One of the few things you ________say about English people withcertainty is that they talk a lot about the weather.A. needB. mustC. shouldD. can40. Some people who don’t like to talk much are not necessarily shy;they ________just be quiet people.A. mustB. mayC. shouldD. would41. The traffic is heavy these days. I________ arrive a bit late, so could you save me a place?A. canB. mustC. needD. might42. He must be helping the old man to water the flowers, _______A. is heB. isn’t heC. must heD. mustn’t he43. —It’s the office! So you ______know eating is not allowed here.—Oh, sorry.A. mustB. willC. mayD. need44. You and I could hardly work together,_______A. could youB. couldn’t IC. couldn’t weD. could we45. The doctor advised that you ______swim after eating a large meal.A. wouldn’tB. couldn’tC. needn’tD. shouldn’t46. I can’t leave. She told me that I_____ stay here until she comes back.A. canB. mustC. willD. may47. It _______have been Tom that parked the car here, as he is the only one with a car.A. mayB. canC. mustD. should48. Liza _________well not want to go on the trip — she hates traveling.A. willB. canC. mustD. may49. John promised his doctor he_______ not smoke, and he has never smoked ever since.A. mightB. shouldC. couldD. would50. She ________have left school, for her bike is still here.A. can’tB. wouldn’tC. shouldn’tD. needn’t51.—I can’t find my purse anywhere.—You _________have lost it while shopping.A. mayB. canC. shouldD. would52. —What_____________ I wear to the party, my dear?—Up to you!A. willB. can D. must53. She _______ you more help, even though she was very busy.A. might offerB. might have offeredC. may have offeredD.may offer54. —I’m sorry. I _______at you the other day.—Forget it. I was a bit out of control myself.A. shouldn’t shoutB. shouldn’t have shoutedC. mustn’t shoutD. mustn’t have shouted55. Peter _______be really difficult at times even though he’s a nice person in general.A. shallB. shouldC. canD. must56. —What sort of house do you want to have Something big—Well, it _________be big—that’s not important.A. mustn’tB. needn’tC. can’tD. won’t57.— A bike for meFather ________ have chosen a better gift for my birthday.— He _______ be very happy to know it.A. should; mustB. might; wouldn’tC. couldn’t; mustD. mustn’t; can‘t58. Although this ________sound like a simple task, great care is needed.A. mustB. mayC. shallD. should59. Don’t cry over your lost friendship any more. It _________be helped.A. mustn’tB. needn’tC. shouldn’tD. can’t60. —What does the sign over there read?—No person _________smoke or carry a lighted cigarette, cigar or pipe in this area.A. mustB. mayC. shallD. will二、用合适的情态动词或用括号内单词正确形式填空。
高中英语情态动词形式练习题40题(带答案)
高中英语情态动词形式练习题40题(带答案)1. In the school library, you ______ keep quiet so as not to disturb others.A. canB. mayC. mustD. might答案：C解析：must表示必须，在图书馆里必须保持安静以免打扰他人。
can表示能够，有能力做某事，这里不是强调能力，所以A选项错误。
may表示可能或许，也可表示许可，但语气不如must强烈，这里需要表达一种规定，所以B选项不合适。
might是may的过去式，同样表示可能性或更委婉的许可，不符合语境，D选项错误。
2. For the school sports meeting, students who are good at running ______ participate.A. canB. shouldC. mustD. would答案：A解析：can表示有能力做某事，这里是说擅长跑步的学生能够参加运动会。
should表示应该，侧重于责任或义务，这里没有这种意思，B选项错误。
must表示必须，参加运动会不是强制的，C选项不符合。
would是will的过去式，通常表示过去的意愿或者用于虚拟语气等，D选项不符合语境。
3. You ______ ask the teacher for help if you don't understand the homework.A. canB. mayC. needD. must答案：A解析：can表示可以，在这里是说如果不理解作业可以向老师寻求帮助。
may也有可以的意思，但can的语气更直接，这里用can更合适。
need作情态动词时主要用于否定句和疑问句，这里是肯定句，C选项错误。
must表示必须，这里不是必须要向老师求助，D选项错误。
4. When we have a school trip, we ______ bring our own lunch.A. canB. mayC. shouldD. could答案：B解析：may表示许可，在这里是说我们在学校旅行时可以带自己的午餐。
高中英语情态动词练习(附答案)
高中英语语法练习-情态动词一、基础练习1.He ___ have completed his work; otherwise, he wouldn't be enjoying himself by the seaside.A. shouldB. mustC. wouldn'tD. can't2. I _____ have been more than six years old when the accident happened.A. shouldn'tB. couldn'tC. mustn'tD. needn't3. This cake is very sweet. You ____ a lot of sugar in it.A. should putB. could have putC. might putD. must have put4. He paid for a seat, when he ____ have entered free.A. couldB. wouldC. mustD. need5. I was on the highway when his car went past followed by a police car. They ____ at least 150 kilometers an hour.A. should have been doingB. must have been doingC. could have doneD. would have done6. — Tom is never late for work. Why is he absent today?— Something __________ to him.A. must happenB. should have happenedC. could have happenedD. must have happened7. - Do you know where David is? I couldn't find him anywhere.- Well. He _______ have gone far-his coat is still here.A. shouldn'tB. mustn'tC. can'tD. wouldn't8. -Lucy doesn't mind lending you her dictionary.- She __________. I've already borrowed one.A. can'tB. mustn'tC. needn'tD. shouldn't9. - Catherine, I have cleaned the room for you.- Thanks. You _____ it. I could manage it myself.A. needn't doB. needn't have doneC. mustn't doD. shouldn't have done10. There________ be any difficulty in passing the road test since you have practised a lot in the driving school.A. mustn'tB. shan'tC. shouldn'tD. needn't11. - The woman biologist stayed in Africa studying wild animals for 13 years before she returned.-Oh, dear! She ________ a lot of difficulties!A. may go thoughB. might go throughC. ought to have gone throughD. must have gone though12. -I've taken someone else's green sweater by mistake.-It ______ Harry's. He always wears green.A. has to beB. will beC. mustn't beD. could be13. Helen _______ go on the trip with us, but she isn't quite sure yet.A. shallB. mustC. mayD. can14. If I ________ plan to do anything I wanted to, I'd like to go to Tibet and travelthrough as much of it as possible.A. wouldB. could C have to D. ought to15. You might just as well tell the manufacturer that male customers_____ not like the design of the furniture.A. mustB. shallC. mayD. need16. -Who is the girl standing over there?- Well, if you ______ know, her name is Mabel.A. mayB. canC. mustD. shall17. Children under 12 years of age in that country______ be under adult supervisionwhen in a public library.A. mustB. mayC. canD. need18. "The interest ______ be divided into five parts, according to the agreement madeby both sides," declared the judge.A. mayB. shouldC. mustD. shall19. -- I'll tell Mary about her new job tomorrow.--You _______ her last week.A. ought to tellB. would have toldC. must tellD. should have told20. I ______ pay Tom a visit, but I'm not sure whether I will have time this Sunday.A. shouldB. mightC. wouldD. could21. --I don't mind telling you what I know.--You ________. I'm not asking you for it.A. mustn'tB. may notC. can'tD. needn't22. --Excuse me, but I want to use your computer to type a report.--You________ have my computer if you don't take care of it.A. shan'tB. might notC. needn'tD. shouldn't23. --Excuse me. Is that the right way to the Summer Palace?--Sorry, I'm not sure, but it ______ be.A. mightB. willC. mustD. can24. --Mum, I've been studying English since 8 o'clock. ________ I go out and playwith Tom for a while?--No, I'm afraid not. Besides, it's raining outside now.A. can'tB. wouldn'tC. may notD. won't25. I often see lights in that empty house. Do you think I _____report it to the police?A. shouldB. mayC. willD. can26. Mr. White_______ at 8:30 for the meeting, but he didn't show up.A. should have arrivedB. should arriveC. should have had arrivedD. should be arriving27. You ________ be tired-you've only been working for an hour.A. must notB. won'tC. can'tD. may not二、提高练习1．--- Shall I tell John about it?--- No, you ______. I’ve told him already.A. needn’ｔB. wouldn’ｔC. mustn’ｔD. shouldn’ｔ2. --- There were already five people in the car, but they managed to take me as well.--- It ______ a comfortable journey.A. can’t beB. shouldn’t beC. mustn’t have beenD. couldn’t have been3. --- Why didn’t you come to see me?--- I ______, but I was too busy yesterday.A. like toB. should like toC. would like to haveD. am going to-behaved gentleman ______ be so rude to a lady.4. You can’t imagine that a wellA. mightB. needC. shouldD. would5. There was plenty of time; she ______.A. mustn’t have hurriedB. needn’t have hurriedC. may not have hurriedD. wouldn’t have hurried6. --- Is John coming by air?--- He should, but ______ not. He likes taking trains.A. mustB. canC. needD. may7. --- ______ it be Li Ping who broke the glass?--- No. It ______ be Wang Hai who did it.A. Could; mayB. Can; canC. May; mustD. Can; must8. When the old man was alive, he ______ sit for hours at the door.A. wouldB. couldC. mustD. might9. Jack, you ______ play with the knife; you ______ hurt yourself.A. won’t; can’ｔB. mustn’t; mayC. shouldn’t; mustD. can’t; should10. I’ve decided to take the job and I ______ change my mind.A. mustn’ｔB. can’ｔC. won’ｔD. may not11. She ______ into the thick forest alone on such a dark night.A. dares not goB. dares not to goC. dare not to goD. doesn’t dare to go12. My parents never remember my telephone number, and they always ______ look it up.A. mustB. canC. shouldD. have to13. --- Where is Jack? I can’t find him anywhere.--- He ______ his homework upstairs.A. might have doneB. must have doneC. might be doingD. must do14. He ______ you more help, even though he was very busy.A. might have givenB. might giveC. may have givenD. may give15. --- If he ______, he ______ that food.--- Luckily he was sent to the hospital immediately.A. was warned; would not takeB. had been warned; would not have takenC. would be warned; had not takenD. would have been warned; had not taken16. --- I hear you've got a set of valuable Australian coins. ____I have a look ?--- Yes, certainly.A. DoB. MayC. ShallD. Should17. — When can I come for the photos? I need them tomorrow afternoon.。
高中英语情态动词形式练习题40题带答案解析
高中英语情态动词形式练习题40题带答案解析1.She ______ play the piano beautifully when she was only seven.A.canB.couldC.mayD.might答案解析：B。
“could”表示过去的能力，句中“when she was only seven”表明是过去的时间，所以用“could”。
“can”表示现在的能力；“may”和“might”表示可能性较小的推测，不符合题意。
2.You ______ borrow my book if you promise to return it on time.A.canB.mayC.mustD.should答案解析：A。
“can”在这里表示许可，“如果你承诺按时归还，你可以借我的书”。
“may”也有许可的意思，但语气比“can”弱；“must”表示必须；“should”表示应该，都不符合许可的意思。
3.He said he ______ speak three languages.A.canB.couldC.mayD.might答案解析：B。
“could”表示过去的能力，“said”表明是过去时态。
“can”是现在的能力；“may”和“might”表示可能性较小的推测。
4.Mom said I ______ go to the party if I finish my homework.A.canB.mayC.mustD.should答案解析：A。
“can”表示许可，“如果我完成作业，妈妈说我可以去参加聚会”。
“may”语气较弱；“must”是必须；“should”是应该。
5.She ______ swim very well last summer.A.canB.couldC.mayD.might答案解析：B。
“last summer”是过去的时间，“could”表示过去的能力。
“can”是现在的能力；“may”和“might”表示可能性较小的推测。
高中英语情态动词形式练习题40题(答案解析)
高中英语情态动词形式练习题40题(答案解析)1.She ____ know the answer.She always gets good grades.A.mustB.can'tC.mayD.might答案解析：A。
“She always gets good grades.”表明她总是取得好成绩，所以“一定”知道答案，must 符合语境。
can't 表示不可能；may 和might 表示可能，语气较弱，不符合此处语境。
2.____ I borrow your pen?A.MustB.CouldC.WouldD.Shall答案解析：B。
“borrow your pen”是请求，could 用于委婉地请求许可，符合语境。
must 表示必须；would 表示意愿或过去习惯；shall 用于第一人称征求对方意见，均不符合此处借笔的请求语境。
3.You ____ be careful when crossing the road.A.mustB.canC.mayD.could答案解析：A。
过马路时“一定”要小心，must 表示必须，符合语境。
can 表示能够；may 表示可能；could 表示能够（ 语气更委婉），均不如must 强烈。
4.He ____ come to the party if he finishes his homework.A.mayB.mustC.can'tD.would答案解析：A。
“if he finishes his homework”表示一种可能性，may 表示可能，符合语境。
must 表示必须；can't 表示不可能；would 表示意愿或过去习惯，均不符合。
5.They ____ have gone on vacation.They haven't been at school for days.A.mustB.mayC.can'tD.could答案解析：A。
高中英语情态动词形式练习题40题含答案解析
高中英语情态动词形式练习题40题含答案解析1.She is very quiet. She ____ be shy.A.mustB.canC.mightD.should答案解析：C。
must 表示肯定的推测，语气非常强；can 表示可能性，但在这个语境中不太符合；might 表示可能性较小，符合“她很安静”这个描述推测她可能害羞；should 表示应该，不符合推测的意思。
2.The book is missing. Someone ____ have taken it.A.mustB.canC.mightD.should答案解析：A。
书不见了，一定是有人拿走了，must 表示肯定的推测，语气很强。
can 和might 语气较弱；should 表示应该，不符合语境。
3.He is always late. He ____ be very disorganized.A.mustB.canC.might答案解析：A。
他总是迟到，肯定是非常没有条理，must 表示肯定的推测，语气强。
can 和might 可能性较小；should 表示应该，不合适。
4.The lights are on. Someone ____ be at home.A.mustB.canC.mightD.should答案解析：A。
灯亮着，肯定有人在家，must 表示肯定的推测，语气强。
can 和might 可能性较小；should 表示应该，不符合语境。
5.The test was very difficult. She ____ have passed it.A.mustB.canC.mightD.should答案解析：C。
考试很难，她可能通过了，might 表示可能性较小。
must 语气太强；can 表示可能性，但不太符合这个语境；should 表示应该，不符合推测的意思。
6.He looks very tired. He ____ have worked hard.A.mustB.canD.should答案解析：A。
高中英语情态动词专题练习(含答案)
高中英语情态动词专题练习(含答案)1.---- Look。
it could be Lao Wang.No。
it can't be him。
He has gone abroad.2.---- I’ve XXX XXX.It could be Harry’s。
He always wears green.3.Where could that noise be coming from?4.If it is the best thing to do。
it cannot be done too soon.5.I XXX.6.I really XXX.7.You can walk for miles and miles among the XXX.8.---- Excuse me。
Is this the right way to the Summer Palace? Sorry。
I am not sure。
But it may be.13.XXX。
14.Since the XXX due to bad weather。
we should go by train。
15.The boss said to the secretary。
“If you work well。
you shall have a rise.”16.This is an XXX。
We must not let it pass。
17.“I hope Josh is OK at that summer camp。
He might be homesick”Don’t worry about him。
He will be having a great time.”18.If you could take a seat for a moment。
Mr。
Franks willbe with you soon。
19.As teenagers grow older。
高中英语情态动词专项练习200题(含答案)
高中情态动词专项练习200题Ⅰ．情态动词的特征：①本身有词义；②不能独立作谓语；③后接动词原形一起构成谓语；④不随人称和数的变化。
Ⅱ．情态动词各自的基本意义及用法：1．can 与could用法2．may与might用法3．must与have to用法4．need与dare用法5．should与ought to用法6．shall与will用法7．used to与would用法Ⅲ．情态动词表推测：1．大多数情态动词（除表‘能力、许可、意志’外），都可以表示推测，其程度有差异。
按可能性程度的高低排列为：must﹥will ﹥would ﹥ought to ﹥should完全肯定完全可能很可能﹥can ﹥could﹥may ﹥might可能有可能2．区分情态动词的否定含义：may not或许不、可能不might not可能不can’t 不可能mustn’t不许、禁止shouldn’t不应该needn’t 不必3．情态动词表推测具体运用：情态动词可以对现在、进行、过去推测。
4．表示反劝的特殊的表推测形式5．注意：Ⅳ．情态动词表推测的反意疑问句1．情态动词表推测的反意疑问句，简单来说，就是以情态动词后的时态为淮，如句子里有明确的时间状语，则以其为准。
2．以must 为例：e.g.: 1．You must be hungry now, aren’t you?2．He must be watching TV , isn’t he ?3．Tom must have lived her for a long time, hasn’t he ?4．She must have arrived yesterday, didn’t she?注：如选择题中（以She must have arrived yesterday, didn’t she？为例）既有didn’t she又有hasn’t she 则以didn’t she？为最佳答案。
高中英语情态动词形式练习题40题含答案解析
高中英语情态动词形式练习题40题含答案解析1. I'm not sure if I can finish this assignment on time. It's very difficult.A. mustB. canC. shouldD. need答案解析：B。
A 选项“must”表示必须，与题意不符；C 选项“should”表示应该，也不符合语境；D 选项“need”表示需要，在这里不合适。
而题干中表达不确定能否按时完成作业，“can”表示能够，符合题意。
2. She may come to the party tonight, but I'm not sure.A. mustB. mayC. shouldD. need答案解析：B。
A 选项“must”表示肯定的推测，与题干中不确定不符；C 选项“should”表示应该，不合适；D 选项“need”表示需要，不恰当。
题干中说不确定她今晚是否会来派对，“may”表示可能，符合语境。
3. He could have done better in the exam if he had studied harder.A. mustB. couldC. shouldD. need答案解析：B。
A 选项“must”表示必须，与题意不符；C 选项“should”表示应该，也不合适；D 选项“need”表示需要，在这里不恰当。
题干中说如果他学习更努力，他本可以在考试中做得更好，“could”表示能够，符合语境。
4. We might go on a picnic this weekend if the weather is nice.A. mustB. mightC. shouldD. need答案解析：B。
A 选项“must”表示肯定的推测，与题干中不确定不符；C 选项“should”表示应该，不合适；D 选项“need”表示需要，不恰当。
高考(完整版)情态动词专题(练习题含答案)
高考(完整版)情态动词专题(练习题含答案)一、选择题1．A lot of online resources ________ be used either by teachers at school or parents at home. A．can B．should C．need D．must2．Don’t cross the road until the traffic lights turn green. A car_______hit you.A．need B．may C．should D．must3．Hurry up, or we ________ miss the beginning of the film.A．should B．must C．may D．have to4．—I must go to school today, ________?—No, you ________.You can go as soon as you get well.A．mustn’t I;needn’t B．needn’t I;needn’tC．mustn’t I;mustn’t D．need n’t I;mustn’t5．— Excuse me, could you tell me where the Nanjing Brocade Museum is?—Go along this road for five minutes. You ________ miss it. It’s a huge building. A．mustn’t B．can’t C．needn’t D．shouldn’t 6．—Will my car be ready by the end of the day?—I t ________ be, sir. I’ll call if there’s any problem.A．must B．could C．shall D．should7．— Is Lang Lang going to perform at Art Center this Friday?— Yes. It ________ be him. He has been here for three days.A．might B．must C．mustn’t D．may8．When you visit a museum, some instructions should ________ and we’d better not ________ them.A．pay attention to; be against B．be paid attention; againstC．be paid attention to; against D．be paid attention to; be against9．You ________ be careful with the camera. It costs!A．can B．will C．should D．may10．— Mom, must I clean my room now?— No, you ________. You can do it after dinner.A．needn’t B．mustn’t C．shouldn’t D．can’t11．We teenagers ________ have dreams. With dreams and hard work, anything amazing________ be created.A．may; can B．might; should C．should; can D．must; has to 12．—Have you decided to take up teaching as career after graduation?—I ________ go abroad for further education instead. But it depends.A．must B．should C．may D．shall 13．Please don't make so much noise. I ________ hear the speaker very well.A．needn't B．can't C．shouldn't D．mustn't 14．—The high school entrance examination is coming!—Yes, our teacher tells us we _______ be too careful while taking exams．A．mustn't B．shouldn't C．needn't D．can't15．You ______ pay too much attention to your pronunciation, as it is so important in the oral （口头的） test.A．shouldn’t B．mustn’t C．can’t D．needn’t 16．—Would you please________in that way? That’s not safe!—Sorry. I won’t do it any more.A．not driving B．not to drive C．no driving D．not drive 17．Dr. Zhong Nanshan once said, "To prevent the spread of this disease, we________never be too careful."A．can B．may C．must D．should18．—Will your mother be at home this Saturday?—Hard to say. She _______go to the countryside to see my grandparents.A．must B．may C．can D．would19．Think twice before making a decision, or you __________ get into trouble.A．may B．can't C．shouldn't D．mustn't20．I ________ hear you clearly. Would you please repeat it?A．mustn’t B．can’t C．needn’t D．shou ldn’t 21．Look at the floor, Tom! ________ you watch TV while having a meal?A．Should B．Could C．Must D．May22．You _________ smoke here! Look at the sign. It says "No smoking".A．needn't B．mustn't C．can D．may23．— Listen! Tom ________ be listening to the music while doing his homework.—Let’s go upstairs to remind him to turn it off.A．should B．could C．would D．must24．—Will Jim come to Yangzhou for a holiday?—He ________come and it depends on how much homework he will have.A．may B．should C．must D．need25．—In China, many parents complain that their children have to stay up late to do the homework.—Don’t worry. The government has realized the problem. I’m sure there ________ be good news soon.A．can B．should C．need D．must26．I think all the students love the weekends because, to them, they ________ get up early on Saturdays or Sundays.A．mustn’t B．don’t need C．needn’t D．can’t27．When people are waiting at the zebra crossing, cars and buses ________ wait and let them go first.A．must B．may C．can D．need28．—Shall I tell him the change of the time right now?—I’m afraid you ________, otherwise he will be late for the meeting.A．can B．may C．must D．need29．It’s of great importance to protect the environment. Each of us ________ take an active part in it.A．can B．may C．would D．should 30．—Must we stop the Japanese government discharging nuclear waste water (排放核污水) into the Pacific Ocean?—________. Because everyone should protect our earth and it is bad ________ us to eat the polluted seafood and drink the waste water.A．Yes, we can; of B．No, we mustn’t; of C．Yes, we must; for D．No, we needn’t; for 31．According to the rule, used batteries ________ be dropped in the red bin for harmful wastes. A．may B．would C．should D．might32．Cars ________ give way to walkers on some roads in Binhai, or the drivers will be fined. A．may B．will C．can D．must33．Mr. Black ________ be at home now. He went abroad on vacation last Friday.A．can’t B．mustn’t C．needn’t D．shouldn’t 34．—How beautiful the winter jasmines (迎春花) are!—Yes. These golden-yellow flowers ________ be widely seen in my city in March.A．must B．can C．would D．should35．— What do you think of the show yesterday?— Some of them were really good but others ________ be better.A．will B．must C．need D．can 36．—Who’s the man over ther e? Is that Mr. Black?—It ________ be him. Mr. Black is much taller than that man.A．may B．must C．can’t D．mustn’t37．—________ I see your ID card? We have to check your personal information.—Sure. Here you are.A．May B．Need C．Should D．Must38．—I don’t care what people think.—Well, you _______ . Some opinions are worth weighing.A．should B．might C．could D．would39．—I think they are enough. We ________ make so many chairs.—I don’t think so. Because nearly a quarter of them need ________.A．don’t need to; mending B．needed; to be mendedC．don’t need; mend D．need; to mend40．—Seventy dollars for such a dress! You ________ be joking!—I’m serious. It’s made of silk from Hangzhou.A．must B．need C．will D．can【参考答案】一、选择题1．A解析：A【详解】句意：很多在线资源既可以供学校的老师使用，也可以供家长在家使用。
高中英语情态动词形式练习题40题含答案解析
高中英语情态动词形式练习题40题含答案解析1.You come to the party tonight if you finish your homework.A.canB.couldC.mayD.might答案解析：A。
“can”表示有能力或有机会做某事，在这里表示如果你完成作业就有机会来参加今晚的派对。
“could”和“might”语气较委婉，“may”通常表示可能性。
在这个语境中，强调有能力和机会，用“can”最合适。
2.She pass the exam if she studies hard.A.canB.couldC.mayD.might答案解析：A。
同样，这里强调如果她努力学习就有能力通过考试，“can”表示能力。
“could”“might”语气委婉，“may”表示可能性，这里突出能力，所以选“can”。
3. you help me with this math problem?A.CanB.CouldC.May答案解析：B。
这里用“could”表示委婉地请求，“can”语气较直接，“may”和“might”在这个语境中不太符合请求的语气。
4.I ask you a question?A.CanB.CouldC.MayD.Might答案解析：C。
“may”用于请求许可比较正式，“can”也可以用于请求但相对不那么正式，“could”和“might”语气委婉但在这里不太符合直接请求的语境。
5. he come to school late today?A.CanB.CouldC.MayD.Might答案解析：D。
“might”在这里表示对可能性的较小推测，他今天有可能会迟到吗？“can”和“could”通常不用于这种较小可能性的推测，“may”也不太符合这个语境。
6. you lend me your pen?A.CanB.CouldD.Might答案解析：B。
“could”表示委婉地请求借笔，“can”语气较直接，“may”和“might”不太符合请求借东西的语境。
【英语】高考英语情态动词题20套(带答案)及解析
【英语】高考英语情态动词题20套(带答案)及解析一、单项选择情态动词1．—Can I pay the bill by check?—Sorry，sir．But it is the management rules of our hotel that payment _____ be made in cash．A．shall B．needC．will D．can【答案】A【解析】【详解】考察情态动词用法。
句意：——我能用支票付账吗?——对不起,先生。
但这是我们酒店的管理规定,支付要用现金。
shall可以表示命令，警告，强制，或者指规则和法律要求做的事情。
本题正是考察了shall表示按照规则和法律要求做的事情。
故A正确。
2．Ann said whenever her father was unhappy he ________ go out and buy something, usually something large and useless.A．should B．couldC．would D．might【答案】C【解析】【详解】考查情态动词。
句意：安说无论什么时候她父亲不高兴的时候，他就会出去买些东西，通常是一些又大又没用的东西。
A. should应该；B. could能；C. would总是，愿意；D. might 可能。
此处表示过去经常习惯做某事，故选C。
3．The accident which left 15 people on board dead ________ if both the angry female passenger and the bus driver had kept calm.A．should have avoided B．should be avoidedC．could have avoided D．could have been avoided【答案】D【解析】【详解】考查“情态动词+完成式”。
(完整版)高中英语情态动词练习题(情态动词表推测专练)带答案
高一情态动词练习题（情态动词表推测）1. “I thought you wouldn’t mind.”“Well, as a matter of fact I don’t, but you _____ me first.”A. should askB. should have askedC. must askD. must have asked2.“I called you yesterday. A woman answered, but I didn’t recognize her voice.”“Oh, it _____ my aunt Jean.”A. must beB. must have beenC. might beD. can have been3. That car nearly hit me; I ______.A. might be killedB. might have been killedC. may be killedD. may been killed4. It’s a very kind offer, but I really _____ ac cept it.A. mustn’tB. needn’tC. can’tD. don’t5. The police still haven’t found her, but they’re doing all they _____.A. mayB. canC. MustD. will6. You _____ practice the drums while the baby is sleeping.A. needn’tB. mightn’tC. mustn’tD. won’t7. You _____ him the news; he knew it already.A. needn’t tellB. needn’t have toldC. mightn’t tellD. mightn’t have told8. — I saw Mr. Sun at Tongyu Station this morning.—You ______. He’s still on holiday in Hawaii.A. c ouldn’t haveB. mustn’t haveC. shouldn’tD. needn’t9. Are you still here? You ______ home hours ago.A. should goB. should have goneC. might goD. may have gone10. “Look at these tracks. It _______ be a wolf.” “Don’t be so sure. I think it _______ be a fox.”A. must; mayB. may; mightC. need; mustD. could; need11. “Did Jim come?” “I don’t know. He _______ while I was out.”A. might have comeB. might comeC. mush have comeD. should have come12. I _______ have met him a long time ago. Both his name and face are very familiar.A. mayB. canC. wouldD. should13. “Shall we go shopping?” “Sorry, we _______ buy anything now because none of the shops are open.”A. mustn’tB. needn’tC. can’tD. shouldn’t14. They often go to the restaurants for meals. They _____ be very poor.A. mustn’tB. can’tC. may notD. needn’t15. I didn’t see her in the meeting room this morning. She ______ have spoken at the meeting.A. mustn’tB. shouldn’tC. needn’tD. couldn’t16. “Show me your permit, please.” “Oh, it’s not in my pocket. It ______.”A. might fall outB. could fall outC. should have fallen outD. must have fallen out17. — Has Li Lin started? He said he would join in the party.— He ______. He is a man of keeping his word.A. must have leftB. could have leftC. can’t comeD. won’t be coming18. “Why didn’t she come to the meeting yesterday?” “I’m not so sure. She ______ ill.”A. should beB. should have beenC. must beD. might have been19. Why did you just sit and watch? You _______ me.A. could helpB. should helpC. could have helpedD. must have helped20. “You ______ your teacher for help. He is kind-hearted.” “Yes. A whole day _______.”A. can ask, will wasteB. must have asked, had wastedC. could have asked, was wastedD. shouldn’t have asked, would be wasted21. “Is there a flight to London this evening?” “There _______ be. I’ll phone the airport and find it out.”A. mustB. mightC. wouldD. can22. Her brother be at home now, because he was seen playing basketball in the stadium just now.A. mustn’tB. needn’tC. can’tD. shouldn't23. —I can’t understand why our boss is late.—He the early bus.A. could missB. may have missedC. can have missedD. might miss24. — Excuse me, could you tell me where the Yajia Supermarket is?—It’s two blocks straight ahead. You ______ miss it.A. mustn’tB. can’tC. needn’tD. shouldn’t25. ______ Mr. Black _______ go to work by ferry before the bridge was built?A. Did; used toB. Use; toC. Did; use toD. Does; use to26. My English-Chinese dictionary has disappeared. Who _____ have taken it?A. shouldB. mustC. couldD. would27. See who is there! ______it be May?A. MayB. MustC. CanD. Will28. He must be in the classroom, _______ he?A. mustn’tB. can’tC. isn’tD. can29. He________ be in the garden. He must be in the room.A. can’tB. mustn’tC. will notD. may not30. John______ be a basketball player. He is much too short.A. mayB. mustn’tC. shouldD. can’t.答案：1-10 BBBCB CBABA 11-20 AACBD DADCC21-30 BCBBC CCCAD。
高中情态动词语法练习题
情态动词练习题Ⅰ. 单项选择(45%)1.I thought you _________like something to read, so I have brought you some books.__________ to the meeting this afternoon if you have something important to do.A. needn't to comeB. don't need comeC. don't need comingD. needn't come3. He__________you more help, even though he was very busy.A. might have givenB. might giveC. may have givenD. may give4.---________I help you with some shoes, madam?--- Yes, I would like to try on those brown ones.A. WillB. ShouldC. MayD. Must5. The reason why they _______leave wasn't explained to us.A. hadB. had toC. mustD. might6. I searched for my wallet and it wasn't there. I thought I______it at home.A. leftB. have leftC. might have leftD. could have left7. I _____asleep because it took me a long time to realize that the telephone was ringing.A. could have fallenB. should have fallenC. must have fallenD. mustn't have fallen8. The only thing that really matters to the children is how soon they ______return to their school.A. canB. mustC. have toD. ought to9. I want to go to the chemist's, but you______go with me.. need not B. must not C. need D. must10. I thought it over, but______come to no conclusion.A. canB. couldC. shouldD. would11. What we _____get seems better than what we have.A. canB. couldC. can'tD. couldn't12.─My goodness! I've just missed th e train.─That's too bad. I am sure you ______it, if you had hurried.A. could have caughtB. had caughtC. would catchD. could catch13. Look! What you've done! You _____more careful.A. may beB. had toC. should have beenD. would be14. ______I repeat the question?A. ShallB. WillC. Do you want thatD. Do15. Professor Li, many students want to see you.____ they wait here or outside!A. DoB. WillC. ShallD. Are16. You read that book if you don't want to. A. haven't B. can't C. mustn't D. needn't17. Johnny, you play with the knife; you____hurt yourselfA. won't; can'tB. can't; shouldn'tC. shouldn't; mustD. mustn't; may18. It's nearly seven o'clock. Jack______be here at any moment.A. mustB. needC. canD. should19. ─ There were already 5 people in the car, but they managed to take me as well. ─It ____a comfortable journey.A. can't beB. shouldn't beC. couldn't have beenD. mustn't have been20. Tom ought not to_____me your secret, but he meant no harm.A. have toldB. tellC. be telling C. having told21. Everyone is here.______ we start the meeting?A. CanB. MustC. ShouldD. Shall22. I parked my car right here but now it's gone. It _______.A. must be stolenB. may be stolenC. must have stolenD. must have been stolen23. He______the work yesterday, but he didn't.A. must have finishedB. need have finishedC. finishedD. should have finished24. He did not pass the examination. As a good student, he______A. mustn't have failedB. may not have failedC. needn't have failedD. shouldn't have failed25. ______it be true that Albert passed the test in geography?A. MayB. shouldC. CouldD. would26. You_____lead a horse to the water but you not make it drink.A. will; canB. may; canC. may; dareD. dare; can27. ─Must we finish the composition in class? ─No, you_____A. needn'tB. mustn'tC. won'tD. shouldn't28. Her eyes were red. She ______A. must cryB. must be criedC. must have been cryingD. may cry29. Mary ________his letter, otherwise she would have replied before now.A. has receivedB. must receiveC. couldn't have receivedD. shouldn't have received30. I told Sally how to get here, but perhaps I________ for her.A. had to write it outB. must have written it outC. should have written it outD. ought to write it outⅡ. 用所给动词的适当形式填空(10%)─Hello. Gerry speaking.─Hello, Gerry. It's me John here. Why aren't you here at the meeting?─Well, I'm terribly sorry, but I'm not feeling very well.─Is that all? We thought you might (have) an accident or (forget) the day or something.─No, I'm sorry. I was sick all night. I think it must(be) the fish I ate last night.─Well, I think you should at least (phone) Kate and (tell) her you weren't coming to the meeting.─Yes, I suppose I should (do) so. I'm sorry about that. Anyway, I think I'll be able to get in to work tomorrow.─OK, Take care and don't eat any more fish.─I won't. Thanks for calling.─That's all right.Ⅲ. 用would, should, must , have to 填空(20%)1.─ I have not a raincoat with me.─That's why I _______wait until the rain stops.2._______ you be so kind as to keep an eye on my house while I am away?3. It is important that I ______see him at once.4._______ the pain return，take one of these pills.5. They didn't dare to leave the train lest they________be attacked by wolves.6. He ordered that Tom______leave the house at once.7. The last bus has left. We _____walk home.8. The weather was bad. We______wait for two hours at the airport before we took off.9. You______come and see us sometime.Ⅳ. 把以下句子译成英语(25%)1.她一定把钥匙丢了.2.他们一定走了,可是应当给我留一个条子呀!3.你本不必要把整个课文都译成汉语.4.我是可能早一些来的,可是我在路上碰到一个朋友.答案ⅠⅡ. have had; forgotten; be; hav；honed; told;have done;Ⅲ. 1. have to 2. Would 3. should 4. Should5. should 6. should7. have to/will have to 8. had to 9. must 10. mustⅣ.1. She must have lost her key.2. The must have left, but they should have left us a note.3. You needn't have translated the whole text into Chinese.4. I could have arrived a little earlier, but I met a friend of mine on the way.5. You should be more careful next time.1．(2009年辽宁卷)The traffic is heavy these days.I______arrive a bit late，so could you save me a place? A．can B．mustC．need D．might【解析】句意为：最近这些天交通拥挤。
高考情态动词练习20题
高考情态动词练习20题1. Tom be at home. I just saw him go out.A.mustn'tB.can'tC.needn'tD.shouldn't答案解析：B。
“can't”表示“不可能”，符合语境，因为刚刚看到汤姆出去了，所以他不可能在家。
“mustn't”表示“禁止”；“needn't”表示“不必”；“shouldn't”表示“不应该”，这三个选项都不符合题意。
2. You have finished your homework before you watch TV.A.mustB.canC.mayD.need答案解析：A。
“must”表示“必须”，符合题意，即你必须先完成作业才能看电视。
“can”表示“能够”；“may”表示“可以”；“need”表示“需要”，这三个选项都不能准确表达该语境下的义务。
3. She speak three languages fluently.A.mustB.canC.shouldD.need答案解析：B。
“can”表示“能够”，在这里表示她能够流利地说三种语言。
“must”表示“必须”，不符合语境；“should”表示“应该”；“need”表示“需要”，这两个选项也不合适。
4. I be wrong, but I think he is from Canada.A.mayB.mustC.shouldD.need答案解析：A。
“may”表示“可能”，符合语境，即我可能是错的。
“must”表示“一定”，语气太肯定；“should”表示“应该”；“need”表示“需要”，都不符合该语境。
5. You go to school on foot. It's not far.A.mustB.canC.shouldD.need答案解析：B。
“can”表示“可以”，在这里表示你可以步行去上学，因为不远。
高考英语情态动词练习题50题(带答案)
高考英语情态动词练习题50题(带答案)1. You ______ be tired after working for eight hours without a break.A. canB. mayC. mustD. should答案解析：C。
must表示肯定的推测，根据题意，连续工作八小时不休息肯定会累，所以这里用must。
A选项can表示能力或可能性，通常用于否定句和疑问句中表示推测，这里不符合语境。
B选项may表示可能，可能性较弱，没有must肯定。
D选项should表示应该，与题意推测累不累不相关。
2. - ______ I use your pen? - Sure. Here you are.A. MustB. MayC. NeedD. Should答案解析：B。
May用于征求对方许可，在这个句子中是询问是否可以使用对方的笔，符合语境。
A选项Must表示必须，C选项Need 表示需要，D选项Should表示应该，都不符合这个征求许可的语境。
3. He ______ speak English when he was five years old.A. couldB. canC. mayD. must答案解析：A。
could是can的过去式，表示过去的能力，句中提到他五岁的时候，是过去的时间，所以用could表示过去能说英语。
B选项can表示现在的能力。
C选项may表示可能，D选项must表示肯定的推测，都不符合这里表示过去能力的语境。
4. - Where is Tom? - He ______ be in the library. I'm not sure.A. canB. mayC. mustD. should答案解析：B。
may表示可能性，根据I'm not sure可知说话者不确定，只是一种可能，所以用may。
A选项can用于否定句和疑问句中表示推测，这里是肯定句。
高二英语情态动词用法练习题30题
高二英语情态动词用法练习题30题1. Tom is not in his room. He _____ be in the library.A.mustB.canC.mayD.could答案：C。
“may”表示有可能，不太确定的推测。
“must”表示肯定的推测，语气很强，根据题干只是说汤姆不在房间，不能肯定他一定在图书馆。
“can”表示能力或者可能性，但这里表示推测不太合适。
“could”表示过去的可能性或者委婉的语气，这里不合适。
2. The ground is wet. It _____ have rained last night.A.mustB.canC.mayD.could答案：A。
“must”在这里表示肯定的推测，因为地面湿了，很有可能是昨晚下过雨了。
“can”和“could”一般不表示这么肯定的推测。
“may”表示有可能，但没有“must”肯定。
3. There is a lot of noise coming from the classroom. The students _____ be having a discussion.A.mustB.canD.could答案：C。
“may”表示有可能，因为有噪音不能肯定学生一定在讨论。
“must”太肯定，不太合适。
“can”和“could”也不太符合这里的推测。
4. She looks very tired. She _____ have stayed up late last night.A.mustB.canC.mayD.could答案：C。
“may”表示有可能，只是看起来累不能肯定一定是熬夜了。
“must”语气太强。
“can”和“could”在这里不太合适。
5. The book is missing. Someone _____ have taken it.A.mustB.canC.mayD.could答案：C。
“may”表示有可能，书不见了不能肯定一定是谁拿了。
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高中英语语法情态动词专项练习题一( ) 1. You _____ return the book now. You can keep it till next week if you like.A. can’tB. mustn’tC. needn’tD. may not( ) 2. Where is my pen? I _____ it.A. might loseB. would have lostC. should have lostD. must have lost ( ) 3. I wish I _____ you yesterday.A. seenB. did seeC. had seenD. were to see( ) 4. I didn’t hear the phone. I _____ asleep.A. must beB. must have beenC. should beD. should have been ( ) 5. If my lawyer _____ here last Saturday, he _____ me from going.A. had been; would have preventedB. had been; would preventC. were; would preventD. were; would have prevented( ) 6. He _____ you more help, even though he was very busy.A. might have givenB. might haveC. may have givenD. may give( ) 7. If it _____ for the snow, we _____ the mountain yesterday.A. were not; could have climbedB. were not; could climbC. had not been; could have climbedD. had not been; could climb( ) 8. Without electricity human life _____ quite difficult today.A. isB. will beC. would have beenD. would be( ) 9. A computer _____ think for itself, it must be told what to do.A. can’tB. couldn’tC. may notD. might not( ) 10. Jenny _____ have kept her word. I wonder why she changed her mind.A. mustB. shouldC. needD. would( )11. We _____ last night, but we went to the concert instead.A. must have studiedB. might studyC. should have studiedD. would study( ) 12. —Could I borrow your dictionary?—Yes, of course you _____.A. mightB. willC. canD. should( ) 13. Tom ought not to _____ me your secret, but he meant no harm.A. have toldB. tellC. be tellingD. having told( ) 14. —If he _____, he _____ that food.—Luckily he was sent to the hospital immediately.A. was warned; would not takeB. had been warned; would not have takenC. would be warned; had not takenD. would have been warned; had not taken( ) 15. Peter _____ come with us tonight, but he isn’t very sure yet.A. mustB. mayC. canD. will( ) 16. I told Sally how to get here, but perhaps I _____ for her.A. had to write it outB. must have written it outC. should have written it outD. ought to write it out( ) 17. I didn’t see your sister at the meeting. If she _____, she would have met my brother.A. has comeB. did comeC. cameD. had come( ) 18. —Shall I tell John about it?—No, you _____. I’ve told him already.A. needn’tB. wouldn’tC. mustn’tD. shouldn’t( ) 19. When a pencil is partly in a glass of water, it looks as if it _____.A. breaksB. has brokenC. were brokenD. had been broken ( ) 20. It’s nearly seven o’clock. Jack _____ be here at any moment.A. mustB. needC. shouldD. can( ) 21.—There were already five people in the car but they managed to take me as well.—It _____ a comfortable journey.A. can’t beB. shouldn’t beC. mustn’t have beenD. couldn’t have been ( ) 22. Johnny, you _____ play with the knife, you _____ hurt yourself.A. won’t; can’tB. mustn’t; mayC. shouldn’t; mustD. can’t; shouldn’t ( ) 23. The fire spread through the hotel very quickly but everyone _____ get out.A. had toB. wouldC. couldD. was able to ( ) 24. —When can I come for the photos? I need them tomorrow afternoon.—They _____ be ready by 12:00.A. canB. shouldC. mightD. need( ) 25. —I stayed at a hotel while in New York.—Oh, did you? You _____ with Barbara.A. could have stayedB. could stayC. would stayD. must have stayed ( ) 26. —Will you stay for lunch?—Sorry, _____. My brother is coming to see me.A. I mustn’tB. I can’tC. I needn’tD. I won’t( ) 27. —Are you coming to Jeff’s party?—I’m not sure. I _____ go to the concert instead.A. mustB. wouldC. shouldD. might( ) 28. —Write to me when you get home. —_____.A. I mustB. I shouldC. I willD. I can( ) 29. I was really anxious about you, you _____ home without a word.A. mustn’t leaveB. shouldn’t have leftC. couldn’t have leftD. needn’t leave ( ) 30. —Is John coming by train?—He should, but he _____ not. He likes driving his car.A. mustB. canC. needD. may[参考答案]http://1．C 从原题中You can keep it till next week if you like这一信息句可知，“你不必现在还”。
2．D 从原题中Where is my pen?这一信息句可告诉考生，“笔丢了”，丢的动作是过去发生的。
因此用must + have done表示对过去事实的肯定猜测。
3．C 原题中的yesterday这一信息词告诉考生，在wish后的宾语从句中，用过去完成时，表示与过去事实相反的愿望。
4．B 从原题中的I didn’t hear the phone.这一信息可以判断出，用must have done表示过去事实的准确的肯定猜测。
5．A 从原题中last Saturday这一信息词可知，条件句中用表示与过去事实相反的过去完成时，主句用would + have done。
6．A might have + 过去分词，在次是虚拟语气，表示“本来可以给你更多的帮助”，而事实则是帮助较少。
7．C 从原题中的yesterday这一信息词暗示考生，该句应选用与过去事实相反的过去完成时，If it had not been for …“要不是因为……”。
8．D 原题中的Without electricity相当于一个条件句：If there were no electricity,故主句用human life would be quite difficult today.9．A can可以表示一种客观上的能力，本句can’t，表示“不能，不会”。