一、单选题
1．—Must I hand in the homework right now?
—That's the rule.
A．Yes, you can. B．No, you can't.
C．Yes, you must. D．No, you mustn't.
2．You don't look well, you __________ see the doctor.
A．ought to B．may C．can D．might
3．What a beautiful day! You ______ take your umbrella at all.
A．needn't B．mustn't C．can't D．may not
4．—I saw Susan in the library just now.
—No, it ________ be her. She went to Shanghai this morning.
A．mustn't B．can't C．shouldn't D．needn't
5．——Where is Miss Li?
——She______get home because there is no light in her house.
A．must B．mustn't C．can't D．may
6．Despite the fact that Lucy is a lovely girl, she _____ be extremely difficult to work with sometimes.
A．must B．should C．would D．can
7．It is usually warm in my hometown in March, but it ______ be rather cold sometimes.
A．must B．can C．should D．would
8．—Mom, who won the first place in the TV show I' m a singer?
—It ________ be Han Hong, but I' m not sure. Last Friday I missed it.
A．might B．must C．should
9．It _____ have rained last night, because the ground is wet now.
A．could B．should C．must D．need
10．I can't find my purse. I___________ it in the supermarket yesterday, but I'm not sure.
A．should leave B．must have left
C．might leave D．could have left
11．—You look so tired. You________ late last night.
—Yes. I had to do an important report and stayed up till I completed it.
A．should sleep B．must sleep
C．should have slept D．must have slept
12．I in the exam, but I was too careless.
A．should have been careful B．must have been careful
C．should be careful D．must be careful
13．Someone is knocking at the door. it be Tom?
A．Must B．Should C．Can D．May
14．I love the weekend, because I ________ get up early on Saturdays and Sundays.
A．mustn't B．needn't C．wouldn't D．shouldn't
15．— Many boats near the seaside were destroyed by the wind.
— Well, the wind _______ very strong.
A．can be B．should be C．must have been D．need have been
16．According to the air traffic rules, you ______ switch off your mobile phone before boarding.
A．ought to B．may C．can D．would
二、选词填空
17．Anita (could /would) speak three languages before she was six.
18．It (must have been/must be) raining when you arrived there.
19．You (must /can) be careful with the camera. It will cost you much money.
20．She (can't/ shouldn't) have left school, for her bike is still here.
21．You (mustn't/ needn't) put everything on the shelves until the glue has set hard.
22．—When did you go to Beijing?
—I (might have been/must have been)there in 1994, but I can't remember it clearly.
23．Nobody knows where the jewels have gone and they (might/should) have been stolen.
24．I've ordered some pizza, so we (wouldn't/needn't) worry about cooking when we get home, tired from work.
三、语法填空
25． you please switch off the radio? The baby is sleeping.
26．You be Carol. You haven't changed a bit after all these years.
27．You (not) play with the knife; you hurt yourself.
28．The missing children haven't been found yet. Something terrible have happened to them.
29．Tom, you have a bicycle as your your birthday gift if you are good enough.
30．Teachers ought be honored.
31．Cyclists wear helmets (头盔) while riding bikes in the US. If not, they'll be punished.
32．—Is the letter from your mother?
—Yes. But she have written the letter herself, because she doesn't even know one word.
33．— I take the book out?
—I'm afraid not.
34．—Where on earth did you get the book?
—It's from Mary, if you know.
35．I have watched that movie—it'll give me horrible dreams.
36．You not to watch TV now; you have a lot of homework to do.
37．—I have taken someone else's coat by mistake.
—It be Joan's. I heard that she had lost her coat just now.
答案解析部分
1．答案C
解析句意：—我必须现在交作业吗？—这是规则。是的,，你必须。A. Yes,you can.“是的,你能”；B. No,you can't.“不,你不能”；C. Yes,you must.“是的,你必须”；D. No,you mustn't.“不,你禁止”。回答must引导的一般疑问句，肯定用must，表示"必须"。故选C。
点评考查情态动词引导的一般疑问句的回答，掌握情态动词must的用法。
2．答案A
解析句意：你看起来不好，你应该去看看医生。根据“看起来不好”可以得知是应该去。A. ought to “应该”；B. may “可能”；C. can“ 会”；D. might“可能”。故选A。
点评考查情态动词，区分 ought to；may ；can和might的含义和应用。
3．答案A
解析句意：多好的天气啊!你根本不需要带伞。A. needn't “不必”；B. mustn't“禁止”；C. can't“不可能”；D. may not“或许不会”。结合句意答案为A。
点评考查情态动词辨析，区分needn't ；mustn't；can't和may not的含义和应用。
4．答案B
解析句意：——刚才我在图书馆里看见Susan了。——不，不可能是她。她具体早晨去了上海。情态动词mustn't意为“禁止，千万不能”，不表示推测，CD项与句意不符。can't表示有把握的否定推测，故选B。
点评考查情态动词表推测，区分 mustn't；can't；shouldn't和 needn't的含义和应用。
5．答案C
解析考查情态动词表猜测。句意：——李小姐在哪里？——她不可能回家，因为她家里没有灯光。can't表推测，用于表示否定句和疑问句中，故选C。
点评本题要求考生在理解句义的基础上，进一步牢固掌握各个情态动词的含义和用法。
6．答案D
解析考查情态动词。A必须，一定；B应该；C会，过去常常；D能够，可能；有时可能；句意：尽管Lucy是一个可爱的女孩，但是有时她也可能很难相处。故D正确。
7．答案B
解析A. must一定；B. can 可能；有时会；C. should应该；D. would将会。句意：在我的家乡，3月通常天气温暖，但是有时也可能很冷。根据句意选B。
8．答案A
解析句意：—妈妈，谁在《我是歌手》获得了第一名？—可能是韩红，我也不确定。上周我错过了这个节目。A. might可能；B. must一定；C. should应该。此处表示不太肯定的推测，故选might。must表示非常肯定的猜测；should应该。故选A。
点评考查情态动词辨析
9．答案C
解析句意：昨晚一定下雨了，因为现在地面是湿的。A. could have done“本来能做成的（却没做成）”；B. should have done“本应该做，却没做”；C. must have done“必定做了”；D. need have done“本来需要做的，但没做”。根据下文“because the ground is wet now”可知，地是湿的，说明昨晚肯定下雨了，对过去的肯定猜测，应用must have done。故选C。
点评考查情态动词，掌握must have done的用法。
10．答案D
解析句意：句意：我不能找到我的钱包了，昨天我有可能把它落到超市了，但我不确定。根据句中时间状语yesterday可知，是对过去事情的推测，故用情态动词+ have done，再根据后句but I’m not sure.可知，此推测为不能肯定的推测，故用情态动词could，表示“可能”。选D。
点评考查情态动词辨析，掌握could have left的用法。
11．答案D
解析句意：——你看起来很累。你昨晚一定睡得很晚。——是的。我必须完成一份重要的报告，而且要熬夜完成。根据回答“yes”以及后面的具体解释可知，第二个人肯定了第一个人的推测。表肯定推测，应用must。且根据last night可知，这是对过去的推测，应用must have done。故选D。
点评考查情态动词，掌握must have done的应用。
12．答案A
解析句意：我本应该在考试时仔细点，但是我太粗心了。结合语境可知，此处是虚拟语气，should have done“本该做某事（事实上没做）”，故选A。
点评考查情态动词，掌握should have done的用法。
13．答案C
解析句意：有人在敲门，可能是Tom吗？此处用情态动词表示猜测，must猜测的可能性最大，表示“一定”，should表示推测时，表示确定或可能有的未来的期望，can表示推测常用于否定句和疑问句，may表示可能想很小的猜测，多用于肯定句中，结合句意，这里猜测的可能性不大，且用于疑问句，故用can。因此，故选C。
点评考查情态动词辨析，区分must ；should ；can 和may 的含义和应用。
14．答案B
解析句意：v句意：我喜欢周末，因为周六和周日我不需要早起。A. mustn’t“禁止”；B.needn’t“不需要，没必要；C. wouldn’t“不愿”；D. shouldn’t“不应该”。根据句意可知，周六、周日不用早起，故选B。
点评考查情态动词辨析，区分 mustn't；needn't；wouldn't和 shouldn't的含义。
15．答案C
解析考查情态动词和时态。Can表示泛指的可能，理论上的可能性；should表示应当；must表示肯定，根据句意可知是现在已经发生的事，应用现在完成时。句意：许多临海的船只都被风摧毁了。——哇哦，那风一定是非常强劲。根据句意可判断其它3项与题意不符，故选C。
16．答案A
解析句意：根据空中交通规则的要求,你应该在登机前关掉你的手机。ought to应该,应当。故选A。
17．答案could
解析句意：Anita 六岁前就会说三种语言了。could表示能力，“能”；would表示意愿，故填could。
点评考查情态动词辨析，区分could 和would的含义和用法。
18．答案must have been
解析句意：你到那儿的时候一定在下雨。must have done 是对过去的情况的推测；must be是对现在情况的推测。根据时间状语when you arrived there，可知是对过去事情的推测，故填must have been。
点评考查情态动词辨析，区分must have done和must be的应用。
19．答案must
解析你一定要小心照相机，会花很多钱的。must"必须，肯定，一定"；can"能够，有时会"；根据"It will cost you much money."可知填must。
点评考查情态动词辨析，区分must和can的应用。
20．答案can't
解析句意：她不可能离开学校了，因为她的自行车还在这里。根据后句her bike is still here可知此处是有把握的判断，can’t have done “不可能做过某事”；shouldn’t have done “本不应该做某事（其实做了）”，故填can’t 。
点评考查情态动词辨析，区分can’t have done和shouldn’t have done的用法。
21．答案mustn't
解析句意：在胶水凝固之前，你不能把所有东西都放在架子上。mustn't表示“禁止”；needn't表示必要性，“没必要”，故填mustn't。
点评考查情态动词辨析，区分mustn't和needn't的用法。
22．答案might have been
解析句意：——你什么时候去的北京？——我可能在1994年去过那里，但我记不清了。might have been“可能”；must have been“肯定.....”。根据“but I can't remember it clearly.”可知不确定，因此填might have been。
点评考查情态动词辨析，区分might have been和must have been的含义和应用。
23．答案might
解析句意：没人知道珠宝去了哪里，可能被偷了。might have been 表示“可能”；should have been“本应该做（其实没做）”，此表示推测，不是虚拟，故填might。
点评考查情态动词辨析，区分might have been和should have been的应用。
24．答案needn't
解析句意：我点了披萨，所以我们回家后不用担心做饭，工作累了。need表示必要性，而would表示意愿，故填needn't。
点评考查情态动词辨析，区分needn't 和wouldn't的应用。
25．答案Could/Would
解析句意：你能把收音机关了吗? 孩子在睡觉。could/would用于一般疑问句，表示征求对方意见，故填Could/Would。
点评考查情态动词，本题涉及could/would的应用。
26．答案must
解析句意：你一定是Carol，这些年你一点没变。根据"You haven't changed a bit after all these years"这些年你一点没变，可知可以很肯定的知道是Carol，must表示推测，故填must。
点评考查情态动词，本题涉及must的应用。
27．答案mustn't/shouldn't；may
解析句意：你不能玩刀子，会伤到自己的。mustn't表示“不准，不得”等禁止的意思，表示“不可，不能，一定不要”等劝告的意思；shouldn't通常用来表示现在或将来的责任或义务，译作“应该”、“应当”，都符合第一空语境；第二空中用may，表示“可能性”的推测，故答案为：mustn't/shouldn't; may。
点评考查情态动词，掌握 mustn't/shouldn't和may的应用。
28．答案might
解析句意：那些失踪的孩子还没有找到。一些可怕的事情可能在他们身上发生了。此处表示对过去可能性的推测，肯定句，应用might have done，故填might。
点评考查情态动词，本题涉及might have done的应用。
29．答案shall
解析句意：汤姆，如果你够好的话，你会得到一辆自行车作为你的生日礼物。shall用于第二、三人称,表示意志、允诺、命令、威胁、警告等。此句表示允诺，故填shall。
点评考查情态动词，本题涉及shall的应用。
30．答案to
解析句意：教师应该受到尊敬。ought to固定短语，”应该"，是情态动词，相当于should，故填to。
点评考查情态动词，掌握ought to的应用。
31．答案must
解析句意：在美国，骑自行车的人在骑车时必须戴上头盔，否则，就会受到惩罚。根据句意可知，此处戴头盔是必须的，因此需在谓语wear前加情态动词must，故填must。
点评考查情态动词，掌握must应用。
32．答案can't
解析句意：——这是你妈妈的信吗？——是的，但她不可能是自己写的信，因为她一个字都不知道。can't have done“不可能做”，表示对过去事情的推测，故填can't。
点评考查情态动词，掌握can't have done的应用。
33．答案May/Can
解析句意：——我可以把这本书带出去吗？——恐怕不能。此处may/can 表示请求许可，意为“可以”，故填May/Can。
点评考查情态动词，掌握may/can的应用。
34．答案must
解析句意：——你到底从哪儿弄到这本书的？——如果你一定要知道的话，是玛丽送的。此处must表示“偏要，非要”之意，故填must。
点评考查情态动词，掌握must的应用。
35．答案shouldn't
解析句意：我不应该看那部电影的，那会让我做噩梦的。shouldn't have done固定短语，“本不应该做......，其实做了”，故填shouldn't。
点评考查情态动词，掌握shouldn't have done的应用。
36．答案ought
解析句意：你现在不应该看电视，你有很多家庭作业要做。ought not to“不应该”；根据句意，你有很多家庭作业，因此你现在"不应该"看电视，故填ought。
点评考查情态动词，本题涉及ought的应用。
37．答案could
解析句意：——我错拿了别人的外套。——可能是Joan 的，我听说她刚丢了外套。could“可能”，表示推测，故填could。
点评考查情态动词，本题涉及could的应用。
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