情态动词讲解-练习题和答案
情态动词主要用来表示说话人的看法、态度等,但不能单独作谓语,只能和其他动词原形构成谓语。
1. can (could)
1) 表示能力，could主要指过去时间。例如：
① Two eyes can see more than one. 两只眼比一只眼看得清。
② Could the girl read before she went to school? 这女孩上学前能识字吗？
因为can不能和其他助动词连用，所以表示将来式时用will be able to
例：You will be able to skate after you have practiced it two or three times.
注意：Can表示一贯的能力，be able to表示客观能力和通过努力可以达到的能力
I can’t swim. But I am sure I will be able to swim through more practicing.
The fire spread through the hotel, but everyone was able to get out
2) 表示允许。例如：
① Can I have a look at your new pen? 我可以看一看你的新钢笔吗？
② He asked whether he could take the book out of the reading—room. 他问他可不可以把书带出阅览室。
3) 表惊异、怀疑、不相信等态度。主要用于否定句、疑问句或感叹句中。例如：
① Where can (could) they have gone to? 他们会去哪儿了呢？
② How can you be so careless? 你怎么这么粗心？
could 加完成式还用于肯定句时一般表过去可能完成而却未完成的动作。
You could have completed the task a little earlier.
你本来能早点完成任务的。（但事实上并没有提前完成任务）
I could have passed my examination easily but I made too many stupid mistakes.
我本可以轻易通过考试，但我犯了太多不该犯的错误。
如表具体做某一件事的能力时，则须用be able to .
He was able to translate the article without a dictionary.
他可以不用词典翻译那篇文章。
2．may (might)
1) 表允许，might可以指过去时间，也可指现在时间，语气更委婉。例如：
① You may take whatever you like.你喜欢什么就拿什么。
② May (Might) I ask for a photo of your baby? 我可以要一张你宝宝的照片吗？
2)在回答以may引起的问句时，多避免用这个词，而用其它方式，如Yes, please. / Certainly. / Please don’t. / You’d better not. / No, you mustn’t.等，以免显得太严峻或不客气。
3)may /might 推测性用法可能
He may be right. He may not come today (可能不) He may /might come tomorrow.
注意: (1)只用于肯定和否定句中,不用于疑问句中。
(2) might 比may可能性更小
He might get a job. He may get a job.
(3) may not 可能不can not不可能
He may not come . He can’t come
4)表建议（可和as well 连用）
You may（might）as well stay where you are. 你还是原地待着好。
（may as well 有“还是……的好”的含义）
5)表祝愿
May you be happy!
6). might表过去的“可能”和“允许”多用于间接引语。
She said that he might take her dictionary. 她说他可以拿她的词典去用。
除在间接引语中外，might一般不表示过去的“可能”与“许可”。表过去的“可能”可用could，表过去的“许可”可用were (was) allowed to。
7)might表现在的“可能”，其可能性要比may小。
Electric irons could be dangerous; they might give you a severe shock.
8)may (might) + have +done 表示对过去发生行为的推测，含有“想必”、“也许是”的意思。
It may have been true. 这事也许是真的。He might not have settled the question. 他可能尚未解决那个问题。
3. must
1)表示义务。意为“必须”（主观意志）。例如：
We must do everything step by step .我们必须按部就班地做一切事情。
Why must you always bother me? 为什么你偏要打扰我呢。
2)must be + 表语的结构，通常表示猜测，含有“一定”之意。（只用在肯定句中）
He must be an honest boy.他一定是个诚实的男孩This must be your room.这一定是你的房间。
3)must 的否定式有两个：当回答由must引起的问题时，否定答复要用needn’t或don’t have to 表示“不必”、“无须”、“用不着”、“不一定”的意义。当表示“不应该”、“不许可”、“禁止”时，就用must not。
Must I go tomorrow?明天我必须去吗？Yes, please. No , you needn’t.
4)must +have +过去分词的结构，常用在肯定句中，表示对过去发生行为的推测，含有“一定”、“准是”的意思。否定和疑问句用can。
She must have studied English before.她以前一定学过英语。
5) 区别：have to的含义与must是很接近的,只是have to 比较强调客观需要，must着重说明主观看法。
I must clean the room.（主观想法）I have to clean the room.（客观需要）
另外，have to 能用于更多时态：
We had to be there at ten .我们得在十点钟到那里。We will have to reconsider the whole thing. have to 的否定式：don’t have to do 表示“不必做……”之意。
4.shall
1) 表征询意见，用于第一、第三人称疑问句。例如：
① Shall I get you some tea? 我给你点茶好吗？
② Shall the boy wait outside? 让那男孩在外面等吗？
2)表说话人的意愿，有“命令、允诺、警告、决心”等意思，用于第二、第三人称陈述句。
例如：
① You shall do as I say. 按我说的做。（命令）
② You shall have my answer tomorrow. 你明天可以得到我的答复。（允诺）
③ He shall be sorry for it one day, I tell you. 有一天他会后悔的，我告诉你。（警告）
④Nothing shall stop us from carrying out the plan. 什么也不能阻止我们执行这项计划。（决心）
5. should
1)用于第一人称疑问句中询问对方的意愿，但语气较委婉温和，如：
What should we do now? 我们现在该怎么办？
2)表示应该、必须，常与must 换用。例如：
We should (must) master a foreign language at least.
3）（表示不确定）万一。例如：
① If I should see him, I'll tell him. 万一我见到他，我就告诉他。
② If it should rain tomorrow, the sports meeting would be postponed. 万一明天下雨。。。
4)“should+be+表语”的结构，表示推测或惊奇。例如：
They should be back by now. 他们现在应该回来了吧。
I am sorry that she should be so careless. 我感到遗憾她竟会那样粗心。
5)“should+have+过去分词”的结构，表示过去该做而实际上尚未做的动作或行为；其否定则表示发生了不应该发生的行为。其同义结构“ought to have +过去分词”,表示过去“早应该”、“本当”之意，语气较强。例如：
I should have thought of that. 这一点我是应当想到的。（但没想到）
They should not have left so soon.他们不应当走得这么早。（但已走了）
6) 在“It is natural (strange, natural, necessary, surprised, impossible, important ) that……”句型中，主语从句中的谓语动词要用should +动词原形”表示“理所当然”、“奇怪”、“必要”、“惊异”等的意思。在lest（以免）、for fear (that) (以防)、in case（以备万一）等之后也要用should+动词原形;在advise, sugest, order, demand, request 等的从句中should+do”例如：
It is necessary that he(should) be sent there at once.
It is strange that he should say so. 他会说这样的话真是奇怪。
6.will和would的用法
1）表示意志，决心或愿望。例如：
Surely we will support all the people in the world in their struggle for peace.
He would not let me try it . 他不肯让我去试。
2）will表示经常性、习惯性、倾向性，would表示过去的习惯行为。
He will sit there hour after hour looking at the traffic go by.
He would come to see me when he was in Beijing.
3）用于第二人称作主语的疑问句中，表示对对方的请求，would的语气比will委碗Would/will you kindly tell me the way to the station? 请问到火车站怎么走？
4）表可能性
This will be the book you are looking for. 这可能就是你要找的书。She would be about 60 when she died.
7.ought to
表义务，意为“应该”（因责任、义务等该做），口气比should稍轻。例如：
① You are his father. You ought to take care of him.你是他父亲，应当管他。
② You oughtn’t to smoke so much. 你不应该抽这么多烟。
8. used to
1）表示过去的习惯动作或状态，现在不复发生或存在。疑问式和否定式有两种。例如：
① There used to be a building at the street corner, but it has been pulled down.
② I usedn’t (didn’t use) to smoke. 我过去不抽烟。
③ Used you (Did you use) to go to school on foot? 你过去常步行去学校吗？
2）used to +v, be used to +v-ing和be used to +v
used to +v意为“过去常常”，“过去一直”；be used to +v-ing / n（名词）意为“习惯于”；be used to +v意为“被用来（做某事）”。
例：He used to smoke. Now he doesn’t. He’s quite used to hard work / working hard.
The knife is used to cut bread.
9.特殊情态动词need和dare的用法：
need和dare既可用作情态动词，也可用作实义动词。用作情态动词时，主要用于否定句和
1) 用作情态动词。例如：
You needn’t telephone him now. She dare not go out alone at night. 她晚上不敢一个人出去。
2) 用作实义动词。例如：
You don’t need to do it yourself. I dare say he’ll come again.我想他会再来（I dare say…为固定
二、情态动词表推测：
1.can 表示可能（理论上或是逻辑判断上）。例如：
① He can’t (couldn’t) have enough money for a new car. 他不可能有足够的钱买新车。
② You mustn’t smoke while you’re walking around in the wood. You could start a fire. 在林子里走时勿吸烟，那样可能会引起火灾。
2.may 表可能（事实上）。可以指过去时间，也可以指现在时间，但语气更加不肯定。
① He may be at home. 他可能在家。② She may not know about it.
3. must 表示揣测。意为“想必、准是、一定”等，只用于肯定句。
① He must be ill. He looks so pale. 他准是病了。他的脸色苍白。
② She’s wearing a diamond necklace. She must have a lot of money.
4. should 表推测，意为“想必一定、照说应该、估计”等。例如：
① The film should be very good as it is starring first-class actors. 这部新电影是一流演员主演的，估计拍得很好。
② They should be home by now. 照说他们现在应当已经到家了。
5. ought to 表推测，暗含很大的可能，语气较弱。例如：
① Han Mei ought to know his telephone number. 韩梅该知道他的电话号码。
② There’s a fine sunset; it ought to be a fine day tomorrow. 今天有晚霞，明天应该是个好天。
6. could可能性不大，语气较弱。7 might 可能性最小，语气最弱。
表示可能性大小的顺序为：must > will > would > ought to > should > can > could> may> might
7.would rather, would sooner, would (just) as soon, had rather, had better, had sooner, can not but, may (just) as well等可用作情态动词。例如：
1）The soldier would sooner die than surrender. The brave soldier would as soon die as yield to
such an enemy. I’d rather walk than take a bus.
If you don’t like to swim, you may just as well stay at home.
2)would (had) rather, would (had) sooner, would (just) as soon后可跟that 引导的从句，that 常省去，从句要用虚拟语气。对现在和将来的假设用过去时，对过去的假设用过去完成时。例如：
I would rather you came on Sunday. I would sooner you hadn’t asked me to speak yesterday.
8.表推测的情态动词句子的反意疑问句
He must/may be in the r oom, isn’t he? He can’t be in the room, is he？
He must have finished the work, hasn’t he? He may have done the work last night, didn’t he?
结构：
1情态动词+ 动词原形（对现在和将来的动作进行推测）
He must understand that we mean business.
2情态动词+ be +doing (对正在发生的动作进行推测)
---Where is LiLei ? ---- He may be studying at school.
3.情态动词+ have +done ( 对过去的动作进行推测)
must have done 一定干了某事could have done 可能干了某是或本可以干了某事
may/might have done 也许已经干了某事should/ ought to have done 本应该做了某事可是没有做
need not have done 本不必干了某事表示过去做了某事，但没有做的必要，意为“本没必要…” You needn’t have waken me up; I don’t have to go to work today
had better have done 最好干了某事would rather have done 宁愿干了某事
would like / love have done 本想干了某事其实未干Since the road is wet, it must have rained last night.
备注：态动词+ have +done 反义问句的结构由有无时间状语来决定。
Lucy must have worked last night, didn’t she?
Lucy must have worked , hasn’t she?
4.情态动词+ have been + v-ing形式（表示推测或评论过去某动作是否正在进行或一直在进行）
They should have been meeting to discuss the problem.
三、情态动词其它用法
1. cannot but do sth. 表示不得不，只好I cannot but choose to go.
2. may well +动词原形完全能，很可能He may well be proud of his son.
3. may as well 最好……We may as well stay where we are.
4 cannot ( 或never 等否定词)与enough 表示再……也不为过You cannot be careful enough.
情态动词练习题
1. 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
2.You_______ buy a gift, but you can if you want to.
A. must
B. mustn't
C. have to
D. don't have to
3. I have told you the truth. ______ I keep repeating it?
A Must
B Can
C May
D Will
4. I_______ have watched that movie —it’ll give me horrible dreams.
A. shouldn’t
B. needn’t
C. couldn’t
D. mustn’t
5. 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
6. _______ I take the book out?
—I'm afraid not.
A. Will
B. May
C. Must
D. Need
7.Just be patient .You ______ expect the world to change so soon .
A. can’t
B. needn’t
C. may not
D. whether
8.—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
9.May I take this book out of the reading room?
No, you______ . You read it in here.
A. mightn’t
B. won’t
C. needn’t
D. mustn’t
10.Doctors say that exercise is important for health, but it _______ be regular exercise.
A．can B．will C．must D．may
11.---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
12.“You ____ have a wrong number,” she said. “There’s no one of that name here.”
A. need
B. can
C. must
D. would
13.---Sorry, Professor Smith. I didn't finish the assignment yesterday.
---Oh, you ____ have done it as yesterday was the deadline.
A.must
B. mustn't
C. should
D. shouldn't
14. Bob would have helped us yesterday, but he-_______
A. was busy
B. is busy
C. had been busy.
D. will be busy
15. John went to the hospital alone. If he_______ me about it, I would have gone with him.
A. should tell
B. tells
C. told
D. had told
16. George is going to talk about the geography of his country, but I’d rathe r he_______ more on its culture.
A. focus
B. focused
C. would focus
D. had focused
17.If we ___ the other road, we might have arrived here in time for the meeting.
A. take
B. had taken
C. took
D. have taken
18.--The weather has been very hot and dry.
--Yes. If it had rained even a drop, things would be much better now! And my vegetables .
A. wouldn't die
B. didn't die
C. hadn't died
D. wouldn't have died 19．Had I known about this computer program, a huge amount of time and energy . A．would have been saved B．had been saved C.will be saved D．was saved
20. It’s the office! So you___ know eating is not allowed here. —Oh, sorry.
A. must
B. will
C. may
D. need
21. What do you mean, there are only ten tickets? There___ be twelve.
A. should
B. would
C. will
D. shall
22. —I don’t care what people think.—Well, you _______
A. could
B. would
C. should
D. might
23.I can’t find my purse anywhere.—You have lost it while shopping.
A.may
B.can
C.should
D.would
24.It is usually warm in my hometown in March，but it be rather cold sometimes.
A.must
B.can
C.should
D.would
25.—How’s your tour around the North Lake? Is it beautiful?
—It____ be，but it is now heavily polluted.
A.will
B.would
C.should
D.must
26.What’s the name?Khulaifi. ____ I spell that for you?
A.Shall
B.Would
C.Can
D.Might
27.John，look at the time. ____ you play the piano at such a late hour?
A.Must
B.Can
C.May
D.Need
28.Catherine，I have cleaned the room for you.—Thanks. You____ it.I could manage it myself.
A. needn’t do
B. needn’t have done
C.mustn’t do
D.shouldn’t have done
29.I’ll tell Mary about her new job tomorrow.—You____ her last week.
A.ought to tell
B.would have told
C.must tell
D.should have told
30.—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
1. D. 考查情态动词推测用法。句意为“杰克把他的父亲描述为一个意志坚强的人，他的
父亲多年前肯定很勇敢。”用must have been表示对过去事情的肯定推测。
2. D情态动词don’t have to 意为“没有必要”，符合语境，句意为：“你没有必要买礼物，但如果你想买的话，你也可以买。”
3. A考察情态动词的用法。must 必须, 一定can 可以, 能够may 也许will 意愿, 倾向性动作, 前半句说我告诉你事实了, 这里用的是现在完成时, 表示过去的动作对现在造成了影响, 既然我已经说了, 我还必须重复一遍吗？
4.A本题考查情态动词的用法。句意应为“我本来不应该看那部电影的----它会使我做噩梦的。”表示“本来不应该做而做了某事”用shouldn’t have done, 所以A项正确。
5. A. 考查情态动词。迈克本来不必要那么忙的。这么高速驾驶之后，他早半个小时到达了。根据后面的语境，提前半个小时到达，说明Mark本来不必那么匆忙，所以用needn’t have done 结构，表示“本来不必要做某事的而实际上做了”。
6.B考查情态动词。表请求可用情态动词can, may, could, might ,表允许用can, may.
句意为：“我可以将这本书带出去吗？”“恐怕不行”。故应选表情请求的情态动词may。
7. A耐心一点儿，你不能期望世界变化如此快。通过选项此题考察情态动词，can't在否定句
中可以表示推测，译为不可能，，可以表示能力，译为不能够，也可以表示命令，不允许，但是语气比mustn't弱，具有劝慰的意思，根据句意此题中选择A，can't表示劝慰。
8. B，shall在第二人称中表示允诺，还可以表示强制，命令，威胁，警告。还有在法律条
文中的要求或规定。
9. D情态动词。英语中用could，might表示询问或征求意见的问句中，肯定性应答
要用can或may来代替could或might，而may或might征求意见的问句否定应答时要用mustn’t，故本题选D。
10C句意：医生说锻炼对身体重要，但是必须是有规律的锻炼。考查情态动词。Can一般表示“可能，或能力”；will表示“意志”；may表示“许可，可能”；must表示“必须”。
11. B本题考查情态动词在语境中的运用。第一个说话人说和史密斯小姐有约，那下面的人就回应说，"那您一定就是Mrs. Peters了"因此排除A,C.D
12. C情态动词
13. C本题考查的是虚拟语气此处表示和过去事实相反的情况，应该用should + have + 过去分词。本来应该做，而未做
14. A. 本题考查虚拟语气与时态。前句表示对过去的虚拟，而but之后表示过去的客观事实，故用一般过去时态。
15. D. 考查虚拟语气。约翰独自去了医院。如果他告诉我的话，我会跟他一起去的。
解析：前一句是陈述语气，说明动发生在过去，而且后一句的主句已经是would have gone 说明是与过去事实相反的虚拟语气。与之对应的从句结构，应该用had +过去分词。
16 B 解析：would rather后应用虚拟语气，表示与现在时间相反，用动词的过去式
17. B.考查虚拟语气。所填词做虚拟语气中条件状语从句的谓语，根据主句的谓语动词
形式might have arrived可知题干是与过去事实相反，故所填部分用had+过去分词形式
18. D本题考查虚拟语气中对过去的虚拟。第二个说话人的If条件句是我们选择正确答案的关键。要是当时下雨了，现在的情况就好的多了！我的蔬菜也就不会死了。过去没有下雨，所以我的蔬菜干死了也是发生在过去。而将句子还原则为If it had rained even a drop, my vegetables wouldn't have died.If+ had done,主句为couldn’t/ shouldn't/ wouldn't have done.
19．A本题考查虚拟语气。根据句子的倒装特征判断此处是省略了if的虚拟语气，原形是：If I had known about this computer program, a huge amount of time and energy.句意为：如果我早知道这个电脑程序，就可以节省大量的时间和精力了
20. A 句意为这是办公室！因此你必须知道吃的不允许带到这里。must表示“绝不”的意思。
21.A 解析你这是什么意思，只有十张票吗?应该有十二人。should表示“应该，应当”。
22. C考查情态动词的用法。答话的人提了一个建议——你应该关注别人对你的评价的。should可以用来向别人提建议，所以答案为：C
23. A解析may表达推测之意，意为“可能……”。
24.B must必然，一定；can可能；should应该；would（过去）将，总会。本题提供的语境是“有时可能会……”。
25. C考查情态动词的区别。will可用来表示“意愿；客观必然性等”；would可表示“意愿；过去常常（现在也可能是那样的）”；should表示“应该，理应”；must表示“必然；一定，准是”。结合语境可知，此处用should表示虚拟。句意为：“这本来应该是美丽的，但是现在它被严重污染了。”
26.A shall在问句中征求对方意见，主要用于第一人称。答语句意为：“我给你拼写一下好吗？”
27. A解析must在此处显示出说话人的不快，有“难道非要”的意思。
28.B考查情态动词的完成式和一般式的区别。needn’t do不需要做……；mustn’t禁止做……，都用于现在的动作；needn’t have done表示做了本来不必去做的事；shouldn’t have done 是本不该做却做某事。
29. D “情态动词+have done”构成的虚拟语气用法。答语句意为：你本该上周就告诉她(其实没告诉她)。
30.A解析“I am not sure”说明说话者对情况没有把握，推测语气较弱，使用might。
【英语】情态动词练习题含答案及解析
【英语】情态动词练习题含答案及解析 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．need C．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．You _____ be right but I’m going back to check anyway. A．should B．must C．need D．might 【答案】D 【解析】 【详解】 考查情态动词。句意：你或许是对的，但我还是要回去核对一下。A. should应该；B. must 一定，必须；C. need需要；D. might或许。本题主要考查情态动词表示推测的用法，由I’m going back to check anyway可知，我对此不确定。由此可知，D项符合题意。故选D项。【点睛】 can / could用于表推测的用法 (1) 从使用句型上看，can 通常只用于否定句或疑问句，一般不用于肯定句，而could 可用于肯定句、否定句和疑问句。两者没有时间上的差别，只是could 比 can 更委婉，更不确定。 (2) 从时间关系看，对现在或将来情况作推测，后接动词原形；对正在进行的情况作推测，后接 be doing 结构；对过去情况作推测，后接动词完成式。 二、 may / might用于表推测的用法 表示推测，两者都可用，只是 might 比 may 语气更不确定，表示的可能性更小。如本题，根据I’m going back to check anyway可知，我对此不确定。由此可知，D项符合题意。(1) 在句型使用方面：两者均可用于肯定句和否定句，但用于疑问句时，may通常不用于句首，但可用于疑问句的句中（如特殊疑问句等），而might尽管可以用于疑问句的句首，但不算普通，通常会改用其他句式（如用could等）。 三、must表示推测的用法 must 表示很有把握的推测，其意为“一定会”“肯定会”，只用于肯定句，一般不用于否定句或疑问句。表示对现在或未来的情况作推测，后接动词原形；表示对过去情况的推测，接
(完整版)情态动词用法及其练习与答案
情态动词 情态动词有can (could), may (might), must, have to, shall (should, will (would), dare (dared), need (needed), ought to等。情态动词无人称和数的变化；不能单独使用，必须与其后的动词原形构成谓语。 一、can, could 1) 表示能力（体力、知识、技能）。 如：Can you lift this heavy box? （体力） Mary can speak three languages.（知识） Can you skate?（技能） 此时可用be able to代替。Can只有一般现在式和一般过去式；而be able to则有更多的时态。如：I’ll not be able to come this afternoon. 当表示“经过努力才得以做成功某事”时应用be able to，不能用Can。如： He was able to go to the party yesterday evening in spite of the heavy rain. 2) 表示请求和允许。 -----Can I go now? ----- Yes, you can. / No, you can’t. 此时可与may互换。在疑问句中还可用could, might代替，不是过去式，只是语气更委婉，不能用于肯定句和答语中。 ---- Could I come to see you tomorrow? ---- Yes, you can. ( No, I’m afraid not. ) 3) 表示客观可能性（客观原因形成的能力）。 They’ve changed the ti metable, so we can go by bus instead. This hall can hold 500 people at least. 4) 表示推测（惊讶、怀疑、不相信的态度），用于疑问句、否定句和感叹句中。 Can this be true? This can’t be done by him. How can this be true? 二、may, might 1) 表示请求和允许。might比may语气更委婉，而不是过去式。否定回答时可用can’t 或mu stn’t，表示“不可以，禁止”。 ----Might/ May I smoke in this room? ---- No, you mustn’t. ---- May/Might I take this book out of the room? ---- Yes, you can. (No, you can’t / mustn’t. ) 用May I...？征徇对方许可时比较正式和客气，而用Can I...？在口语中更常见。 2）用于祈使句，表示祝愿。May you succeed!
情态动词讲解及练习(含答案)
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初中英语情态动词讲解-练习及答案
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情态动词讲解及练习(有答案)
情态动词讲解及练习一、can和could
特别说明： （1）could用来表示请求时，语气委婉，主要用于疑问句，不能用于肯定句，答语应用can（即：could不能用于现在时态的简略答语中）。如： ——Could I use your dictionary? ——Yes, you can.(否定回答可用：No, I’m afraid not.) (2)can和be able to辨析 can(could)和be able to都可以表示能力，意思上没有区别。但can只有现在式和过去式，而be able to则有更多的形式。如：I’ve always wanted to able to speak fluent English. Those bags look really heavy, are you sure you’ll be able to carry them on your own? 但是，表示在过去某时的某一场合经过一番努力，终于做成了某事，通常不用could，而用was/were able to来表示。这时，was/were able to相当于managed to do或succeed in doing。如： After the accident it was a long time before she was able to walk again. The fire was very big, but most people were able to escape from the building. (3) 惯用形式“cannot …too…”表示“无论怎么……也不（过分）”。如：You cannot be too careful.你越小心越好。 惯用形式“cannot but+ 不定式（不带to）”表示“不得不，只好”。如： I cannot but admire her determination.我不得不钦佩你的决心。 二、may和might
情态动词专项练习及答案详解
情态动词专项练习及答案详解 一、单项选择情态动词 1．—Tony _______ what I did annoying though he didn’t say anything. —So you think you will have to make an apology? A．could find B．should have found C．might find D．must have found 【答案】D 【解析】 【详解】 考查情态动词+have done。句意：—Tony一定觉得我做的事很烦人，尽管他什么也没说。—所以你认为你得道歉吗?。由“what I did”可知，此处是对过去事情有把握的推测，must have done“一定是做某事了”。故选D项。 【点睛】 情态动词+ have done结构： 1.“must + have + 过去分词”表示对过去发生的事情或状态进行推测,语气比较坚定,通常只用于肯定句.如：It must have rained last night,for the ground is wet. 2.“can / could + have + 过去分词”表示对过去某种情况的怀疑或不确定.can和could一般用于否定句和疑问句,could的语气较can弱.如：He can't have finished the work so soon. 3.“may / might + have + 过去分词”表示对已发生的动作或存在的状态进行不肯定的推 测,might的语气比may弱一点.这种结构主要用于肯定句和否定句,疑问句改用can或could.如：They may not have known it beforehand. 4.“need + have + 过去分词”表示过去做了不必做或不需要做的事情,或过去做某事纯属多余.如：I needn't have bought so much wine—only five people came. 5.“should / ought to + have + 过去分词”表示过去本该做某事但没做,其否定式表示过去不该做某事但做了,这种句式含有不满或责备之意,ought to的语气比should强一些.如： You ought to / should have studied harder.你本应该更努力学习的.（但没有） He oughtn't to / shouldn't have done that.他本来就不该做那件事.（可是做了） 6.“would ＋ have ＋过去分词”表示对过去的某种情况进行猜测,或本来要做某事却因某种原因未做成,通常用来说明某一情况,但不像用should或ought to那样含有责备之意.如： I guess the poet would have been about twenty when she wrote her first poem. Another worker wouldn't have acted like that. 分析句子可知，由“what I did”可知，此处是对过去事情有把握的推测，must have done“一定是做某事了”。故选D项。 2．It is really cold and the ground is wet; it ________ have rained last night. A．might B．must C．can D．should 【答案】B 【解析】
情态动词详解(含练习题100道和答案)
情态动词的用法及专项练习 第1 & 2类:
第3类: 1.could have p.p. ①指过去某事有可能发生, 但并未．真的 ．．发生。 They could have won the race, but they didn't try hard enough. He could have studied harder, but he was too lazy and that's why he failed the exam. ②指过去有能力做某事, 但并未真的 ．．．做过。 I could have stayed up late, but I decided to go to bed early. Julie could have bought the book, but she borrowed it from the library instead. ③对过去的发生事情做出一种猜测，但实际上并不知道真假。仅仅是做一种观点上的表达。 He could have got stuck in traffic. He could have forgotten that we were meeting today. He could have overslept. 2. may / might have p.p.(用法与could have p.p.第③点相同) 对过去的发生事情做出一种猜测，但实际上并不知道真假。仅仅是做一种观点上的表达。 He might have got stuck in traffic. He might have forgotten that we were meeting today. He might have overslept. 3. couldn't have p.p. 渴望、期望做某事, 但由于外部原因不可能做成, 即便是很想做。是一种虚拟语气。 I couldn't have arrived any earlier. There was a terrible traffic jam (= it was impossible for me to have arrived any earlier). He couldn't have passed the exam, even if he had studied harder. It's a really, really difficult exam. 4. should / ought to have p.p. 有一个好主意，该做而没有做。为此感到遗憾或惋惜。 You should / ought to have warned me earlier. I should have studied harder! (= I didn't study very hard and so I failed the exam. I'm sorry about this now.) I should have gone to bed early (= I didn't go to bed early and now I'm tired). 5. shouldn't have p.p. 某事不该做、但是做了。对此进行批评。 I shouldn't have eaten so much cake! (= I did eat a lot of cake and now I don't feel good.) He shouldn’t have told them
英语情态动词讲解及练习（附答案）
英语情态动词讲解及练习（附答案） 情态动词讲解 定义：情态动词表示说话人对动作的态度，比如：需要，可能，意愿，猜测或者怀疑等等。 情态动词本身有一定意思，但不完全，不能单独作谓语，必须与动词原形连用。 否定句中，在情态动词后面加not。 情态动词有：must, shall, should, had better 词形无变化 can(could), may(might), will(would) 词形有变化 need既可以是情态动词，也可以是实义动词，具有双重性。 一、can 表示“能，会”，否定为：can’t = can not = cannot 其过去式为：could→couldn’t (1)表示会做某事，有能力做某事。意思= be able to e.g. He can speak English, but he can’t speak Japanese. = He is able to speak English, but he isn’t able to speak Japanese. I could smile but I couldn’t speak w hen I was 2 months old. = I was able to smile but I wans’t able to speak when I was 2 months old. 区别：① can只用于现在时和过去时(could), be able to 可用于各种时态。 e.g. They will be able to tell you the news soon. Mingming has been able to count numbers. ② be able to 不与can连用，但可以和其他情态动词或助动词连用。 e.g. He may be able to speak English very well some day in the future. He may can speak………………………………………………….. He can be able to speak……………………………………………..
情态动词讲解_练习题和答案
情态动词讲解_练习题和答案 情态动词主要用来表示说话人的看法、态度等,但不能单独作谓语,只能和其他动词原形构成谓语。 1. can (could) 1) 表示能力，could主要指过去时间。例如： ① Two eyes can see more than one. 两只眼比一只眼看得清。 ② Could the girl read before she went to school? 这女孩上学前能识字吗？ 因为can不能和其他助动词连用，所以表示将来式时用will be able to 例：You will be able to skate after you have practiced it two or three times. 注意：Can表示一贯的能力，be able to表示客观能力和通过努力可以达到的能力 I can’t swim. But I am sure I will be able to swim through more practicing. The fire spread through the hotel, but everyone was able to get out 2) 表示允许。例如： ① Can I have a look at your new pen? 我可以看一看你的新钢笔吗？ ② He asked whether he could take the book out of the reading—room. 他问他可不可以把书带出阅览室。 3) 表惊异、怀疑、不相信等态度。主要用于否定句、疑问句或感叹句中。例如： ① Where can (could) they have gone to? 他们会去哪儿了呢？ ② How can you be so careless? 你怎么这么粗心？ could 加完成式还用于肯定句时一般表过去可能完成而却未完成的动作。
情态动词专项练习题及答案
情态动词专项练习题及答案 一、初中英语情态动词 1．— I take the magazine out of the reading room? — I'm sorry you . A. Could; couldn't B. Must; couldn't C. Will; can't D. May; can't 【答案】 D 【解析】【分析】句意：——我可以把杂志带出阅览室吗？——对不起，你不能。could 能，可以；must必须；will将；may可以；can能，可以，can't不可以，不能。此处表示请求许可，用could或者may，由could或者may构成的一般疑问句，肯定回答用yes，主语+can，否定回答用sorry，主语+can't，结合选项，故答案选D。 【点评】考查情态动词的辨析。注意理解句意，理解选项，根据语境，选出正确的答案。2．— Shall I book some seats for the concert? —______. I've done that. A. Yes, you may B. No, you mustn't C. No, you needn't D. No, you can't 【答案】C 【解析】【分析】Yes, you may是的，你可以；No, you mustn't 不，你千万不要；No, you needn't不，你不必；No, you can't不，你不能。句意：我要预定一些音乐会的座位吗？根据下文，我已经办了。可知选C最符合语境。 【点评】考查交际用语 3．— _________ I take my cousin Shirley with us, Mr. Wu？ — Yes, but we'll get there by bike. ____________ she ride a bike? — Yes, and she ___________ ride a bike when she was only six years old. A. Could; can; could B. Can; can; can C. Can; could; could D. Could; could; can 【答案】 A 【解析】【分析】句意：-我能带我表弟雪莉和我们一起吗，吴先生？-是的，但我们将骑自行车去那儿。她会骑自行车吗？-是的，她在六岁时就能骑自行车了。can，能，会，它的过去式是could。在一般疑问句中could多表示委婉语气，而不是表过去。所以选A。4．——Shall we meet at the station at 7 am? ——In fact, we _______. The train _______ until 9 a. m. A. mustn't; doesn't leave B. mustn't; leaves C. needn't; won't leave D. needn't; will leave 【答案】 C 【解析】【分析】need，需要，否定式是needn't；must的含义是必须一定，其否定形式mustn't表示禁止的含义。句意：我们上午七点在车站见面好吗？——实际上，我们不必。火车到上午九点钟才出发。结合语境可知后一空描述的是将要发生的动作，故用一般将来时态。选C。 【点评】情态动词的考查是初中英语考查的重点，平时学习中一定要熟记这些词的基本词义及用法上的不同，注意其用法及在句子中表达语气的不同。考试中结合语境选择合适答案。 5．According to the law, traffic keep to the left in England.
情态动词专项练习(含答案和解析)
情态动词专项练习(含答案和解析) 1.Our XXX. 2.To my joy。we don't need to go to the bank。Mary has lent us some money. 3.- Do we have to finish this today? Yes。you must。Today is the last day. 4.Sorry。smoking is not allowed here。If you do。you will be fined according to the rules. 5.- Is it really necessary for me to wear a mask when shopping? I'm afraid you must in public。It is not only to XXX. 6.Hurry up。or we will miss the beginning of the film. 7.- How do you like my new dress? Well。if I must say。it is not suitable for you. 8.- Do the children have to leave at six tomorrow morning? 16."Please don't make so much noise。I can't hear the speaker very well."
17."We've discussed every detail of this plan and have got everything ready。But still something may go wrong。We still have to be very careful." 18."XXX。XXX." 19."I think we should be too careful." 20."Will my car be ready by the end of the day。It should be。sir。I'll call if there's any problem." 21."Will dad arrive home at 6 o'clock to have dinner with us this evening。I think he will。but he may not。Sometimes he works extra hours." 22."You mustn't smoke here。Look at the sign。It says 'No smoking'." 23."Must I XXX today。Mum。No。you needn't。my dear。You can XXX."
情态动词详解、典型例题及模拟试题(含答案)
情态动词详解、典型例题及模拟试题〔含答案〕1．must、can、could、may、might、will / would、shall / should、need、dare △must的肯定式表示“必须”，否认式mustn’t表示“禁止，严禁”的意思。 如： You must come here ． You mustn’t take the book away from the library ． 同义词为have to do ，表示“不得不”一般表示客观原因造成的“不得不、被迫” 如：My car was broken ，so I had to walk home ． △can的肯定式表示“能、会”“可以”，否认式can’t表示“不能，不会，不可以”。 如：He can swim ．I can’t swim ．You can go now ． 同义词为be able to do ，也表示“能，会”一般表示经过努力才具有的能力与can 的区别，主要是它可有时态。 如： He was able to count to 10 ，000 when he was 3 ． He will be able to walk next month ． △may表示“可以”，否认式may not表示“不可以”表示经某人允许。 如：You may go home now ．You may not go home now ． △will表示“将要，打算”用于将来时，否认式will not / won’t表示“将不”“不打算”。 如：He will come here next week ．He won’t come home ． △shall用于第一人称后表示“将要”“打算”否认式shall not表示“将不，不打算”。 如：We shall go home together ．I shall go there first ． 用于其他人称后表示“必须，得”与must相近，但表示别人认为主语“应该，得” 如：He shall go and see his aunt ．Shall he open the door ? △need表示“需要”，否认式needn’t表示“不需要，不用” 如：He need do some washing ．You needn’t stay here any more ． △dare表示“敢于……”否认式dare not表示“不敢……” 如：He dare say no to wrong things ．He dare not go home alone at night ．注：need与dare除情态动词用法外还有实意动词用法，且意义不变。 如： He needs some water ． He doesn’t need to go home ． He needs to go to the hospital right now ． 2．could ，would ，should ，might 这四个词除了做过去式外，还表示委婉语，此时与时态无关。 △could表示“可以” 如： You could open the door ． Could you please give me the cup ?
情态动词专项练习题及答案详解
情态动词专项练习题及答案详解 一、单项选择情态动词 1．We ________ take clean drinking water for granted. One day we may run out of it. A．needn't B．can't C．won't D．shouldn't 【答案】D 【解析】 【详解】 考查情态动词。句意：我们不应该把拥有洁净的饮用水看作是理所当然的。也许有一天，我们会用完它。shouldn't“不应该”，符合句意。needn't不必；can't不可能；won't将不。故选D。 2．—I have something important to tell John. But I can’t find him. —His cell phone is here, so he ________ have gone too far. A．mustn’t B．needn’t C．wouldn’t D．can’t 【答案】D 【解析】 【详解】 考查情态动词。句意：——我有重要的事情要告诉John，但是我找不到他。——他的手机在这儿，所以他不可能走得太远。根据句意可知，此处是对过去的一种猜测，此处是表达不可能……，用can’t have done。故选D。 3．Paul did a great job in the speech contest. He many times last week. A．need have practised B．might practise C．must have practised D．could practise 【答案】C 【解析】 【详解】 考查情态动词。句意：保罗在演讲比赛中表现得很好。他上星期一定练习了很多次。must have done是对过去发生的动作最有把握的猜测，意思是“一定”。故C选项正确。 4．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 avoided C．could have avoided D．could have been avoided 【答案】D 【解析】
情态动词讲解和练习题(含答案)-
高中英语——情态动词 一、考点、热点回顾 情态动词的用法 1. can 用法 1表示能力,与be able to同义,但can只用于现在时和过去时,be able to可用于各种时态。Two eyes can see more than one. 注:Can you …? Yes, I can / No,I can’t. 2.表示允许、请求 用could比can 语气更加委婉客气,常用于could I /you …..?句型中,若表示同意时,用can回答而不用could . Could I borrow t he book ? No, you can’t . 3表示推测“可能”常用于否定句或疑问句中。(can’t表示一定不是 It can’t be true . Can it be true ? 2. may 用法 1表允许,请求= can 表示许可或征求对方的许可,常于第一人称连用。 注:May I ….? Yes ,you may No, you can’t / mustn’t . 在回答以may引起的问句时,多避免用这个词,而用其它方式,如Yes, please. / Certainly.
2表推测,可能、也许。常用于肯定句中。 Maybe he knows the news .= He _____ _____ the news. 3. must 1表示义务。意为“必须”(主观意志。 We must do everything step by step. 注:Must I ….? Yes, you must / No,you needn’t(don’t have to . --Must we hand in our exercise—books now? --No, you needn’t. / No, you don’t have to. 2mustn’t 表禁止、不允许。 You mustn’t talk to her like that. 3表示揣测。意为“想必、准是、一定”等,只用于肯定句。否定、疑问句中must改为can . He must be ill. He looks so pale. She’s wearing a diamond necklace. She must have a lot of money. 注:must表推测时,其反义疑问句与must后面的动词一致。 There must be something wrong ,____ ____? 4.need的用法
(完整版)情态动词专题(练习题含答案)
(完整版)情态动词专题(练习题含答案) 一、选择题 1．—________ you give me a hand? I can’t put up the poster by myself. —No problem. A．Could B．Should C．Need D．Must 2．—Ready? Let’s get started, Martin. — Swimming? I just ________ get used to it in winter. A．can’t B．needn’t C．must n’t D．shouldn’t 3．—Who is singing next door? It sounds like a young girl’s voice. —It _________ be Jane. But she seldom sings English songs. A．need B．must C．may D．can 4．Hurry up, or we ________ miss the beginning of the film. A．should B．must C．may D．have to 5．—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’t C．mustn’t I;mustn’t D．needn’t I;mustn’t 6．—Why didn’t you tell it to me earlier? — Why ________ I? I want to have my own secret. A．can B．may C．should D．shall 7．—Hurry up, Jack! Let’s cross the road as fast as possible. —No, you ________. Don’t you see the light is still red? A．couldn’t B．wouldn’t C．mustn’t D．needn’t 8．—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’t 9．—Is it really necessary for me to go shopping with a mask on? —I’m afraid you ________ in public. It is not only to protect yourself but also to protect others. A．must B．should C．can D．need 10．—Dad, must we wait until the light becomes green? —Yes, I am afraid we ________. That’s the traffic rule. A．may B．can C．have to D．need 11．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 12．— 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．may 13．When you visit a museum, some instructio ns should ________ and we’d better not ________ them. A．pay attention to; be against B．be paid attention; against