最新情态动词中考经典题型带答案
中考情态动词基础单选40题
中考情态动词基础单选40题1.You finish your homework before you watch TV.A.mustB.canC.mayD.could答案：A。
“must”表示必须，在这里强调在看电视之前必须完成作业，是一种强烈的要求。
“can”表示能够，“may”表示可能，“could”表示过去的能够或委婉的请求，这三个选项都没有“必须”的意思强烈。
2.We go to the park if it doesn't rain tomorrow.A.mustB.canC.willD.should答案：B。
“can”在这里表示可能性，即如果明天不下雨我们就能够去公园。
“must”表示必须，“will”表示将来会，“should”表示应该，都不符合此语境。
3.She speak three languages.A.canB.mayC.mustD.should答案：A。
“can”表示能力，她能够说三种语言。
“may”表示可能，“must”表示必须，“should”表示应该，都不能表达她具有说三种语言的能力。
4.You borrow books from the library.A.canB.mustC.shouldD.need答案：A。
“can”表示可以，即你可以从图书馆借书。
“must”表示必须，“should”表示应该，“need”表示需要，都不符合此语境。
5.I be late for school today. I got up late.A.mayB.mustC.canD.should答案：A。
“may”表示可能，因为起晚了所以可能会迟到。
“must”表示必须，“can”表示能够，“should”表示应该，都不太符合此语境。
6.We take an umbrella. It might rain later.A.mustB.canC.shouldD.may答案：C。
“should”在这里表示应该，因为可能会下雨所以应该带伞。
中考英语情态动词推测基础练习题40题
中考英语情态动词推测基础练习题40题1. Tom is not in the classroom. He ____ be in the library.A. mayB. mightC. mustD. can't答案解析：A。
may 和might 都表示可能性推测，may 的可能性比might 稍大一些。
在这个句子中，Tom 不在教室，有可能在图书馆，用may 更合适。
must 表示肯定的推测，不符合语境。
can't 表示否定的推测，也不符合这个语境。
2. There is a book on the desk. It ____ belong to Mary.A. mayB. mightC. mustD. can't答案解析：A。
may 和might 都可以表示不确定的推测。
这里说桌上有一本书，有可能是Mary 的，用may 更恰当。
must 表示肯定的推测，没有足够的证据。
can't 表示否定的推测，同样没有足够的依据。
3. My mother is not at home. She ____ be shopping.A. mayB. mightD. can't答案解析：A。
表示推测妈妈不在家可能去购物了，may 比might 可能性稍大一点，这里用may 更合适。
must 太肯定，can't 不符合妈妈不在家可能去购物的推测。
4. The boy looks happy. He ____ have got good grades.A. mayB. mightC. mustD. can't答案解析：A。
推测男孩看起来开心可能是得了好成绩，may 更符合。
must 太绝对，might 可能性又稍小，can't 与开心的样子不符。
5. I can't find my pen. It ____ be in my bag.A. mayB. mightC. mustD. can't答案解析：A。
中考英语情态动词练习题50题含答案解析
中考英语情态动词练习题50题含答案解析1.You study hard if you want to get good grades.A.canB.couldC.mayD.might答案解析：A。
“can”表示能力，在这里表示“能够”努力学习；“could”表示过去的能力或委婉语气；“may”表示可能性或允许；“might”表示可能性，语气比“may”更弱。
这里强调的是现在有能力努力学习，所以选A。
2.I borrow your pen?A.CanB.CouldC.MayD.Might答案解析：C。
“may”用于请求许可，语气比较正式；“can”更强调能力；“could”表示委婉请求；“might”可能性最小，这里是请求借用钢笔，用“may”更合适。
3.He finish the work on time.A.canB.couldC.may答案解析：A。
“can”表示能力，这里表示他有能力按时完成工作；“could”过去的能力或委婉语气；“may”表示可能性或允许；“might”可能性最小，这里强调能力，选A。
4. you help me with this problem?A.CanB.CouldC.MayD.Might答案解析：B。
“could”在这里表示委婉地请求帮助；“can”语气比较直接；“may”和“might”主要表示可能性和允许，不太符合语境。
5.She come to the party if she has time.A.canB.couldC.mayD.might答案解析：C。
“may”表示可能性，在这里表示她有可能来参加派对如果有时间；“can”表示能力；“could”过去的能力或委婉语气；“might”可能性比“may”更小。
6.We go to the park if it doesn't rain.A.canB.couldD.might答案解析：A。
“can”表示能够，这里表示如果不下雨我们能够去公园；“could”过去的能力或委婉语气；“may”表示可能性或允许；“might”可能性最小。
中考英语情态动词推测基础单选题40题
中考英语情态动词推测基础单选题40题1. Mary is not in the classroom. She ______ be in the library.A. mayB. mustC. can'tD. needn't答案：A。
本题中，Mary 不在教室，她有可能在图书馆，“may”表示可能性较小的推测，“must”表示肯定的推测，“can't”表示否定的推测，意思是“不可能”，“needn't”表示“不必”，根据语境，A 选项最合适。
2. The coat on the chair looks like yours. It ______ be yours.A. mightB. mustC. can'tD. should答案：A。
椅子上的外套看起来像你的，有较小的可能是你的。
“might”表示可能性较小，“must”是肯定推测，“can't”是否定推测，“should”表示“应该”，这里A 选项更符合。
3. There is someone knocking at the door. It ______ be Tom.A. mayB. mustC. can't答案：A。
有人敲门，有可能是Tom。
“may”表示可能性不大的猜测，“must”是很肯定的猜测，“can't”是不可能，“could”也可以表示可能性，但语气比“may”稍弱，综合语境选A。
4. Jack isn't at home. He ______ be playing football outside.A. mayB. mustC. can'tD. ought to答案：A。
Jack 不在家，他可能在外面踢足球。
“may”表示不太确定的推测，“must”是非常确定，“can't”是不可能，“ought to”是应该，这里 A 选项更恰当。
5. The girl has a smile on her face. She ______ be very happy.A. mayB. mustC. can'tD. would答案：A。
中考英语情态动词单选题30题
中考英语情态动词单选题30题1.John is very strong. He _____ lift the heavy box.A.canB.mustC.shouldD.need答案：A。
can 表示能力，意为“能够”；must 表示必须；should 表示应该；need 表示需要。
这里根据语境，John 很强壮，所以他能够举起重箱子。
2.Mom said I _____ watch TV after I finish my homework.A.canB.mustC.shouldD.need答案：A。
can 表示许可，意为“可以”；must 表示必须；should 表示应该；need 表示需要。
这里妈妈说完成作业后可以看电视。
3.The book _____ be Tom's. His name is on it.A.canB.mustC.shouldD.need答案：B。
must 表示肯定的推测，意为“一定”；can 表示可能性，但语气较弱；should 表示应该；need 表示需要。
这里因为书上有Tom 的名字，所以一定是他的。
4.You _____ be careful when crossing the road.A.canB.mustC.shouldD.need答案：B。
must 表示必须，强调必要性；can 表示能力或可能性；should 表示应该；need 表示需要。
过马路时必须小心。
5.We _____ talk loudly in the library.A.can'tB.mustn'tC.shouldn'tD.needn't答案：B。
mustn't 表示禁止，语气最强；can't 表示不能；shouldn't 表示不应该；needn't 表示不必。
在图书馆禁止大声说话。
6.She _____ play the piano very well when she was young.A.canB.couldC.shouldD.would答案：B。
初三英语情态动词试题答案及解析
初三英语情态动词试题答案及解析1. Finish your homework first, then you'll surf the Internet for half an hour.A．can B．needC．be able to D．may【答案】C【解析】句意：先完成作业，然后你可以上网半小时。
从句意看表允许，所以排除B，又由于是一般将来时，will后面接动词原形，can和may没有将来时，故选C。
【考点】考查情态动词。
2.— Must I hand in my homework today?— No, you . You can hand it in tomorrow.A．shouldn’t B．can’tC．needn’t D．may not【答案】C【解析】句意：我今天必须交上我的作业吗？不你不必，你可以明天交上。
Must I do…?否定回答,No,you needn’t.根据句意及结构，故选C。
【考点】考查情态动词的用法。
3. Mobile phones and electronic calculators _______ be brought in the test rooms at exam times.A．couldn’t B．needn’tC．don’t have to D．mustn’t【答案】D【解析】句意：手机和一些电子计算设备禁止在考试期间被带入考场内。
A. couldn’t“不能”；B. needn’t“不必”；C. don’t have to“不必”；D. mustn’t“禁止”。
电子设备带进考场是决定禁止的，故选D。
【考点】考查情态动词的辨析。
4. Five-star hotels provide better services than some small hotels. You _______ even use free WIFI there.A．must B．canC．ought to D．used to【答案】B【解析】句意：五星级旅馆比一些小旅客提供更好的服务。
中考情态动词专题练习带答案
中考情态动词专题练习（带答案）1．May I stop my car here?No, you_＿＿＿.A. can'tB. mustn'tC. needn'tD. don't have to2. Must we clean the house now?No, you _______.A. needn'tB. may notC. mustn'tD. can't3. John his father about his failure in the exam.A. dares not tellB. dares not tellingC. dare not tellD. dares not to tell4. You return the book now. You can keep it next week if you like.A. can'tB. mustn'tC. needn'tD. may not5. Johnny, you play with the knife, you hurt yourself.A. won't...can'tB. mustn't...mayC. shouldn't, mustD. can't...shouldn't6. The fire spread through the hotel very quickly but everyone get out.A. had toB. wouldC. couldD. was able to7. Would you go out for a walk with me?No, I . My girl friend is coming.A. wouldn'tB. shall notC. won'tD. shouldn't8. Man die without water.A. willB. canC. needD. shall9. If he started at 9 0'clock, he be there by now.A. needB. shallC. ought toD. must10. I mailed the letter two weeks ago. She_____it.A. must receiveB. can't receiveC. might receiveD. must have received11.The professor gave orders that the experiment before 5:30p.m.A. be finishedB. will finishC. must be finishedD. would be finished12. There was plenty of time. You_____.A. mustn't hurryB. mustn't have hurriedC. needn't hurryD. needn't have hurried13. Tom was a diligent boy. He go to school though it was raining hard.A.was able toB. couldC. couldn'tD. wasn't able to14. ______I go back before lunch?No, I don't think you________.A. Need...mustB. Do...need toC. Must...have toD. May .... ought to15. The teacher do all the exercises, but a pupil_______.A. needn't....mustB. may not...mustC. needn't....needn'tD. can't....must16. Would you open the window please ?Yes, I______.A. willB. wouldC. doD. can17. A lion only attacks a human being when it is hungry.A. shouldB. canC. willD. shall18. ____Must I finish this novel this morning ?____No, you_____.A. mustn'tB. might notC. don't have toD. can't19. The taxi ____ only hold six passengers. It is full. You take the next one.A. may...mayB. can...mayC. may...canD. must...can20. I a little earlier, but I met a friend of mine on the way.A. may comeB. may have comeC. could have comeD. must have come21. I wish to go home now, I?A. mayB. can'tC. mustD. do22. He must have finished his homework, he?A. mustn'tB. didn'tC. needn'tD. hasn't23. This pen looks like mine, yet it isn't. Whose it be?A. mustB. canC. mayD. might24. He didn't do well in the exam. He hard at his lessons.A. must have workedB. ought to have workedC. would have workedD. has worked25. I wonder how he that to the teacher.A. dare to sayB. dare sayingC. not dare sayD. dared say26. Mr Baker, a number of students want to see you. _____ they wait here or outside?A. ShouldB. WillC. ShallD. Are27. You the trees. Look, it is raining now.A. mustn't have wateredB. needn't have wateredC. could have wateredD. might have watered28. I give you an answer tomorrow. I promise!A. mustB. willC. mayD. shall29. As a soldier, you do as the head tells you.A. willB. shallC. mayD. ought30. The streets are all dry. It_____ during the night.A. can't have rainedB. must have rainedC. couldn't rainD. shouldn't have rained31. "When _____ he leave the hospital?" I asked the doctor.A. willB. shallC. canD. may32. They have not finish the work up to now.____Well, they ______A. should haveB. shouldC. ought toD. ought have33. Since it is already midnight, we______.A. had better leavingB. ought to have leaveC. should take our leaveD. might as well leave34. you be happy!A. MayB. CanC. MustD. Would35. Must we come tomorrow?A. No, you can'tB. No, you needn'tC. No, you mustn'tD. No, you may not36. You miss the lesson, though we have it on Thursday.A. mustn't...needn'tB. needn't....mustn'tC. mustn't...mustn'tD. needn't...needn't37. To succeed in a difficult task,_____.A. one needs to work hardB. to work hard is neededC. you need be a hard working personD. to work hard is what one needs38. In case I______, I would try again.A. will failB. would missC. should failD. shall miss39. Some people feel that handguns______.A. should controlB. should be controlledC. must be controllingD. can be control40. ______ open the door for you ?A. Would you like that IB. Do you want that IC. Will ID. Shall I41. My son ____ the examination, but he wasn't careful enough.A. might be able to passB. must have passedC. could have passedD. were able to pass42. Isn't it strange that the lazy boy pass the exam?A. shouldB. hasC. mightD. would43. We the work so early without your help.A. couldn't finishB. can't finishC. couldn't have finishedD. can't have finished44. We the manager, but no one _____ his telephone number.A. could have called, knewB. could have called, had knownC. could call, had knownD. could call, knew45. "Would you come and join them?""I wish I . But I am busy at this moment.A. can'tB. couldn'tC. couldD. can46. If Alice this afternoon, the meeting should be put off.A. would not comeB. might not comeC. should not comeD. could not come47. I didn't see her in the meeting room this morning. She at the meeting.A. mustn't have spokenB. shouldn't have spokenC. needn't have spokenD. couldn't have spoken48. With so much work on hand, you to see the game last night.A. mustn't goB. shouldn't goC. couldn't have goneD. shouldn't have gone49. I thought you like something to read, so I have brought you some books.A. mayB. mightC. couldD. must50. There was plenty of time. She______.A. mustn't have hurriedB. couldn't have hurriedC. must not hurryD. needn't have hurried51. It's still early, you______.A. mustn't hurryB. wouldn't hurryC. may not hurryD. don't have to hurry52. Please open the window,________?A. can't youB. aren't youC. do youD. will you53. We for her because she never came.A. mustn't have waitedB. shouldn't have waitedC. mustn't waitD. needn't wait54. May I stop here?No, you ____.A. mustn'tB. might notC. needn'tD. won't55. He _____ you more help, even though he was very busy.A. might have givenB. might giveC. may have givenD. may give56. I didn't see her in the meeting room this morning.She at the meeting.A. mustn't have spokenB. shouldn't have spokenC: needn't have spoken D. couldn't have spoken57. Could I borrow your dictionary?Yes, of course you______.A. mightB. willC. canD. should58. Please don't make a noise.. I'll be as quiet as a mouse.A. Yes, I won'tB. No, I won'tC. No, I willD. Yes, I will59. The young man has made so much noise that he not have been allowed to attend theconcert.A. couldB. mustC. wouldD. should60. One ought for what one has done.A. not to be punishedB. to not be punishedC. to not punishedD. not be punished61. If you really want yourself to be in good health, you must always so much..A. not, be smokingB. not, have smokedC. not, to smokeD. be not, smoking62. Where is Mary?She isn't here. I think she_____.A. may have gone homeB. must have gone homeC. might have gone homeD. All the above63. I think Helen is at home.No, she be at home, for she phoned me from the airport just five minutes ago.A. mustn'tB. needn'tC. can'tD. dared not64. She is already two hours late. What to her?A. can have happenedB. may have happenedC. should have happenedD. must happen65. “he be watching TV now?”"Yes, he be watching TV now?""No, he be watching TV now."A. Must, can, mustn'tB. Can ,must, can'tC. Can, can, mustn'tD. May, must, needn't66. You must be a writer, ______?A. mustn't youB. are youC. must youD. aren't you67. You must have seen him last night, ?A. haven't youB. didn't youC. don't youD. must you68. I got up early this morning, but I _______so because I had no work to do.A. mustn't have doneB. didn't need to doC. needn't have doneD. can't have done69. Let's say that you could go there again, how feel?A. will youB. should youC. would youD. do you70. I daren't tell you what he did for fear that he angry with.A. will beB. isC. wasD. should be71. Without the leadership of the Party, there no New China.A. would beB. has beenC. wasD. should be72. It is necessary that we a foreign language.A. must masterB. ought to masterC. masterD. should master73. Most of the students felt rather disappointed at theEnglish party. They say that it ___ better organized.A. had beenB. had to beC. must have beenD. could have been74. I am surprised that he to help me when I needed it most.A. should refuseB. would have refusedC. should have refused toD. may have refused75. Look! Tom is too sleepy to work .He __ up watching TV.A. mustn't have stayedB. shouldn't have stayedC. mustn't stayD. ought not to say.练习题答案1－10 BACCB DCADD11－20 ADACA ACCBC21－30 ADBBD CBBBA31－40 BADAB AACBD41－50 CACAC CDDBD51－60 DDBAA DCBDA61－70 ADCAB DBCCB71－75 ADDCB。
中考情态动词基础单选20题(答案解析)
中考情态动词基础单选20题(答案解析)1. You _____ finish your homework before you watch TV.A.mustB.shouldC.canD.may答案：A。
must 表示“必须”，在这里强调看电视之前必须先完成作业。
should 表示“应该”，语气没有must 强烈。
can 表示“能够”，may 表示“可能”，这两个选项不符合语境。
2. —May I use your pen?—Sure. Here you are. But you _____ return it after class.A.mustB.canC.mayD.should答案：A。
must 在这里表示“必须”，借了东西后必须在课后归还。
can 表示“能够”，may 表示“可能”，should 表示“应该”，这三个选项不如must 更能体现必须归还的意思。
3. You _____ be careful when you cross the road.A.mustB.shouldC.canD.may答案：A。
must 表示“必须”，过马路时必须小心。
should 表示“应该”，语气不如must 强烈。
can 表示“能够”，may 表示“可能”，不符合语境。
4. —Could I borrow your dictionary?—Yes, you _____. But you must return it on time.A.canB.shouldC.mustD.may答案：A。
could 表示委婉的请求，回答用can。
should 表示“应该”，must 表示“必须”，may 表示“可能”，不符合语境。
5. We _____ respect our teachers and parents.A.mustB.shouldC.canD.may答案：A。
must 表示“必须”，我们必须尊重老师和父母。
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最新情态动词中考经典题型带答案一、初中英语情态动词1．Rock music ______ sound popular with the young, but it's not the favor of the aged people.A. mustB. needC. shouldD. may【答案】 D【解析】【分析】句意：摇滚音乐在年轻人中听起来受欢迎，但是它不受上了年龄的人的赞同。
must, 表示猜测时，指把握比较大的肯定猜测，肯定……；need需要；should,应该；may，表示把握比较小的肯定猜测，可能，也许。
结合句意，故选D。
【点评】考查情态动词辨析，注意几个常见情态动词的意思和用法。
2．—Where is Monica? I can't find her anywhere.—She be in the library. She loves reading books when she is free.A. mustB. needC. can't【答案】 A【解析】【分析】句意：——莫妮卡在哪？我到处都找不到她。
——她肯定在图书馆，她喜欢空闲时看书。
A肯定，肯定句中表示推测，B需要，C不可能，否定句中表示推测，根据 She loves reading books when she is free ，可知是肯定句表示推测，故选A。
【点评】考查情态动词，注意情态动词表推测的用法。
3．A hard-working man ______ become a great scientist, but a great scientist _______ be a hard-working man.A. can't; canB. may not; mustC. can't; mustD. may not; can【答案】 B【解析】【分析】句意：一个勤奋的人可能不会成为一位伟大的科学家，但是一位伟大的科学家一定是一个勤奋的人。
can't不可能，不会；can可能，能，会；may not 可能不；must 必须，一定；结合句意，可知，第一个空为“可能不”，第二个空为“一定”，故答案为B。
【点评】考查情态动词。
掌握情态动词表推测时的意义和用法。
4．Look at the sign! It say s “No Smoking!” You ________ smoke here. It's dangerous.A. mustn'tB. ought not toC. needn'tD. don't have to【答案】 A【解析】【分析】句意：看这个标志！上面写道“禁止吸烟！“你不能抽烟。
这是危险的。
A.mustn't 禁止，不允许；B.ought not to不应该，不应当；C.needn't不必；D.don't have to不必。
根据“No Smoking!”可知此处禁止吸烟，故答案为A。
【点评】考查情态动词。
掌握情态动词的意义和用法。
5．Teenagers allowed to drive .A. should not beB. should be notC. not should be【答案】A【解析】【分析】句意：年轻人不应该被允许驾车。
Should是情态动词，其否定表达一般在在后面加副词not，故选A。
【点评】此题考查含有情态动词的被动语态的否定形式。
平时注意记忆情态动词的记忆和用法。
6．You be tired after walking for such a long time. Sit down and have a rest.A. canB. can'tC. mustn'tD. must【答案】 D【解析】【分析】句意：走了这么长时间你一定很累了。
坐下休息一下吧。
can能，能够，can't不能，对事物进行否定推测；mustn't一定不是，禁止，must一定，对事物进行肯定推测，根据after walking for such a long time，可以肯定你一定很累，所以是进行肯定推测，情态动词使用must，故选D。
【点评】此题考查情态动词。
弄清每个情态动词的使用规则，根据句意确定所使用的情态动词。
7．—Where is Mom now?—I'm not sure. She _________ be in the kitchen.A. shallB. mayC. needD. must【答案】 B【解析】【分析】句意：—妈妈现在在哪里？—我不确定，她也许在厨房。
A. shall 将要； B. may 可以，可能； C. need 需要； D. must必须，一定；根据I'm not sure可知是不确定；故选B。
【点评】此题考查情态动词表推测的用法。
8．— Is this e-dictionary Jack's?— No, it_______ his. His is much newer.A. can't beB. mustn't beC. may beD. should be【答案】 A【解析】【分析】句意：-这个电子字典是杰克的吗？--不可能是他的，他的更新些。
must,can（could）,may（maight）可以表示猜测，must表示肯定猜测，用于肯定句，肯定……，一定……；can’t,表示否定猜测，肯定不……，另外can（could）,may（maight），表示可能性猜测，可能……。
根据后文的依据，可知是否定猜测，故选A9．—Who it be that is knocking at the door?—It be father, but I'm not sure.A. call; mustB. can; mayC. must; canD. may; must【答案】 B【解析】【分析】句意：——敲门的人可能是谁呢？——他可能是父亲，但是我不确定。
第一空，can可能，表猜测用语疑问句形式，may是表可能；第二空，根据后面的but I'm not sure，可知表示不确定的猜测，应填may，故选B。
【点评】此题考查情态动词辨析。
先弄清每个情态动词的使用规则。
根据上下文的联系确定情态动词的使用。
10．—I wonder if this smart phone is Mary's.—It _______ belong to her. _______ is totally different from this one.A. mustn't; HerB. can't; HerC. can't; HersD. may; Hers 【答案】C【解析】【分析】句意：――我想知道这个智能机是否是玛丽的。
――不可能属于她，她的和这个完全不同。
情态动词表示推测时，用must表示“一定”，用might, could表示“可能”，用can't表示“不可能”。
从句意看，这手机与她的完全不同，故不可能是她的，前面用can't。
形容词性的物主代词后一定有一个被修饰的名词，名词性的物主代词后没有被其修饰的词，本题后没有被修饰的词，用名词性的物主代词，“她的”：hers。
故选C。
11．We don't allow taking magazines out, but you ____________ copy the article you need on the machine over there.A. canB. mustC. shouldD. would【答案】 A【解析】【分析】句意：我们不允许把杂志带出去，但是你可以在那里抄下你需要的文章。
can能，能够，可以；must必须；should应该；would将；此处表示可以，允许，故选A。
【点评】此题考查情态动词辨析。
弄清每个情态动词的使用规则，根据上下文的联系确定所使用的情态动词。
12．— Sorry, I forgot to take money with me. Maybe I can't buy the book you like.— Mum, you ______ worry about it. We can pay by Alipay （支付宝）.A. can'tB. needn'tC. mustn'tD. shouldn't【答案】 B【解析】【分析】句意：——对不起，我忘记带钱了。
也许我不能买你喜欢的书。
——妈妈，你不用担心。
我们可以用支付宝支付。
A. can't不能，指不允许或否定推测；B. needn't不需，指没必要；C. mustn't不能，表禁止；D. shouldn't不应该，表建议。
根据句意语境，本句是说妈妈不需要担心，故答案为B。
【点评】考查情态动词。
理解句意并掌握情态动词的意义和用法区别。
13．—He be in the classroom,I think.—No, he be in the classroom. I saw him go home a minute ago.A. can； may notB. must； may notC. may； mustn'tD. may； can't【答案】 D【解析】【分析】句意:——我认为他可能在教室里。
——不，他肯定没有在教室里，我刚才看到他回家了。
must,can（could）,may（might）可以表示猜测，must表示肯定猜测，用于肯定句，肯定……一定……；can't表示否定猜测，肯定不……，另外can（could）,may （might）,表示可能性猜测，可能……根据I think,可知把握较小，根据I saw him go home a minute ago.可知第二句把握大，故选D。
14．You _____ walk too close to the edge of the path because you might fall and hurt yourself.A. mayB. mightC. needn'tD. musn't【答案】 D【解析】【分析】句意：你不能走得太靠近路的边缘，因为你可能跌倒伤害自己。
A. may可以，表允许；B. might可能，表推测；C. needn't不必，指没有必要；D. musn't不能，表示不允许或禁止。