__第8单元__情态动词__
一、单项填空
( )1. [2019·营口改编] These days people in China ______ take too much money when shopping because they often use Alipay or WeChat Pay.
A. needn't B. mustn't C. shouldn't
( )2. [2019·西宁改编] — Look! It ______ be David in the classroom.
— It ______be him. Because I saw him in the library a moment ago.
A. may; mustn't B. must; can't
C. can; can't
( )3. [2019·辽阳改编] — You ______ smoke at the oil station. It's too dangerous.
— I'm sorry, I won't.
A. couldn't B. needn't C. mustn't
( )4. [2019·包头改编] — ______ I have a word with you, Mr. Green? It won't take long.
— Okay.
A. Should B. May C. Need
( )5. [2019·贵阳改编]— Dad, my bike is broken. ______ I use yours?
— Sure! It's in the backyard.
A. Must B. Should C. May
( )6. [2019·温州改编] We don't allow taking magazines out, but you ______ copy the article you need on the machine over there.
A. can B. must C. should
( )7. [2019·淮安改编] — Will you stay here for dinner with us?
— Sorry, I ______. My mother is waiting for me at home.
A. mustn't B. can't C. needn't
( )8. [2019· 邵阳改编] — Will Sam go to the cinema with us tonight?
— I'm not sure.He ______ not be free.
A. may B. should C. can
( )9. [2019·宜昌改编] — A little bird entered through the open window to join us for dinner last night.
— Wow, the unexpected guest ______ welcomed.
A. will be B. must be C. won't be
( )10. [2019·泰州改编] — This task is really beyond me.
— Well，if you ______ solve it, you won't get paid.
A. can't B. needn't C. mustn't
( )11. [2019·盐城] Size and type do not matter—you ______ do almost anything if you never give up.
A. should B. must C. can
( )12. [2019·益阳] — Whose volleyball is this?
— It ______ be Linda's. She loves volleyball.
A. must B. can't C. needn't
( )13. [2019·无锡改编] With this new lock, you ______ search for keys in your bag any more. Isn't it cool?
A. needn't B. can't C. mustn't
( )14. [2019·郴州] — May I take the magazine out of the reading room?
— No, you______. Please read it here.
A. mustn't B. wouldn't
C. needn't
( )15. [2019· 孝感改编] — May I join the art club, Dad?
— If you have interest, you ______.
A. should B. can C. have to
( )16. [2019·湘西] — Is that boy Scott?
—No, it ______ be Scott. Scott is much taller.
A. can B. can't C. mustn't
( )17. [2019· 广东改编] Dirty air and water are harmful. They ______ kill plants, and even people.
A. can B. can't C. should
( )18. [2019·新疆改编] David, ______ you please sweep the floor and take out the trash?
A. could B. may C. might
( )19. [2018·海南]— Is that Mr. Zhou?
— It ______ be him. He has gone to Beijing.
A. may B. can C. can't
( )20. [2019·毕节改编] — ______ I take the magazine out of the reading room?
— I'm sorry you ______.
A. Could; couldn't B. Must; couldn't
C. May; can't
( )21. [2019·湘潭] — Who is singing in the next room?
—It ______ be Lisa, but I'm not sure.
A. must B. may C. need
( )22. [2019·天津改编] You ______ walk on the wet hill path because you ______ fall and hurt yourself.
A. must; might not B. mustn't; might
C. needn't; need
( )23. [2019· 北京改编] — Lily, ______ you finish the letter in ten minutes?
— Yes, I can.
A. must B. should C. can
( )24. [2019·凉山改编] We should keep quiet in the library. We______speak loudly.
A. must B. mustn't C. can
( )25. [2019·南充改编] — Mum, may I play computer games this evening?
— No way, you ______ finish your homework.
A. can B. must C. may
( )26. [2019·河池改编] — Is that red schoolbag Mary's?
— It ______ be hers. She hates that color.
A. may B. must C. can't
( )27. [2019·安徽改编] The designer has tried every possible way to make the robot light, so you ______ worry about its weight.
A. must B. may C. needn't
( )28. [2019·连云港改编] According to the notice, guests at this hotel ______ use the sports center at no extra cost.
A. can B. should C. must
( )29. [2019·绥化] That ______be an alien—there's no such thing!
A. might B. must C. can't
( )30. [2019·南通改编] He ______ like coffee. I see him drink a cup at times.
A. must B. may C. can't
二、使用适当的情态动词完成句子
1. — Wow, another gift! What's in the box?
— I'm not sure. It __________ be a pair of sports shoes.
2. Jack __________ be at home because I saw him in the library just now.
3. — Why __________ we close that chemical factory?
— Because it has caused lots of pollution. We need better environment.
4. Mr. Green __________ be at home now. He went abroad on vacation last Friday.
5. — Must I come here before 6：30 tomorrow?
— No, you __________. There will be plenty of time.
参考答案
【单元作业】
一、1.A 【解析】 考查情态动词辨析。句意：如今在中国人们逛街时不需要带太多的现金，因为他们经常用支付宝或微信支付。needn't 不需要；mustn't 禁止；shouldn't不应该。故选A。
2．B 【解析】 考查情态动词辨析。句意：——看！教室里的肯定是大卫。——不可能是他。因为我刚刚在图书馆里看到他了。must be一定是；can't be不可能是。故选B。
3．C 【解析】 考查情态动词辨析。句意：——禁止在加油站抽烟，太危险了。——对不起，我不会再这么做了。couldn't不能；needn't不必；mustn't禁止。故选C。
4．B 【解析】 考查情态动词辨析。句意：——格林先生我可以和您说句话吗？不会占很长时间。——好的。should 应该；may 可以；need需要。故选B。
5．C 【解析】 考查情态动词辨析。句意：——爸爸，我的自行车坏了。我可以用你的吗？——当然！它在后院。must必须；should应该；may可以。故选C。
6．A 【解析】 考查情态动词辨析。句意：我们不允许把杂志带出去，但是你可以在那台设备上把文章复制下来。can能够；可以；must必须；should应该。故选A。
7．B 【解析】 考查情态动词辨析。句意：——你会留下来和我们一起吃饭吗？——对不起，我不能，我妈妈正在家里等我呢。mustn't禁止；can't不能；needn't不需要。故选B。
8．A 【解析】 考查情态动词辨析。句意：——萨姆今晚会和我们一起去看电影吗？——我不确定。他可能没空。may可能；should应该；can能。故选A。
9．B 【解析】 考查情态动词辨析。句意：——一只小鸟昨晚从窗户飞进来和我们共进晚餐了。——哇，那个不速之客一定受欢迎的。will 将是；must一定；won't不会。故选B。
10．A 【解析】 考查情态动词辨析。句意：——这项任务真的超出了我的能力。——如果你不能解决它，你就不能获得报酬。can't不能；needn't不需要；mustn't禁止。故选A。
11．C 【解析】 考查情态动词辨析。句意：身高和体型无关紧要——如果你从不放弃，你几乎能做任何事情。can能够；可以。故选C。
12．A 【解析】 考查情态动词辨析。——这个是谁的排球？——它一定是琳达的，她喜欢排球。must be一定是；can't be不可能是；needn't be不必是。故选A。
13．A 【解析】 考查情态动词辨析。句意：有了这种新锁，你将再也不需要在你的包里找钥匙了。这难道不酷吗？needn't不需要；can't不可能；mustn't禁止。故选A。
14．A 【解析】 考查情态动词辨析。句意：——我可以把杂志从阅览室里拿出来吗？——不，你不能。请在这里读。may引导的一般疑问句，可使用mustn't或can't进行回答。故选A。
15．B 【解析】 考查情态动词辨析。句意：——爸爸，我可以加入美术俱乐部吗？——如果你有兴趣，可以。should应该；can能够，可以；have to不得不，必须。故选B。
16．B 【解析】 考查情态动词辨析。句意：——那个男孩是斯科特吗？——不，不可能是斯科特。斯科特高得多。can be可能是；can't be不可能是；mustn't be不用于表示推测。故选B。
17．A 【解析】 考查情态动词辨析。句意：脏的空气和水是有害的。它们能够杀死植物甚至人。can能够；可以。故选A。
18．A 【解析】 考查情态动词辨析。句意：大卫，请你扫地并倒垃圾好吗？ Could you please do sth.请做某事好吗？固定句式。故选A。
19．C 【解析】 考查情态动词辨析。句意：——那是周老师吗？——不可能是他。他去北京了。由答语后半句“他去北京了”可推断，不可能是周老师，表示否定推测用can't。故选C。
20．C 【解析】 考查情态动词辨析。句意：——我可以把这个杂志拿出阅览室吗？——对不起，你不能。could和may 可用于委婉地提出请求；其否定回答都使用can't或mustn't。故选C。
21．B 【解析】 考查情态动词辨析。句意：——谁在隔壁房间唱歌？——可能是丽萨，但是我不确定。may be表示可能的推测。故选B。 22.B 【解析】 考查情态动词辨析。句意：你千万不能在潮湿的山道上行走，因为你可能摔倒弄伤自己。must必须，一定；might not可能不；mustn't禁止，千万不；might可能；needn't不必；need需要。故选B。
23．C 【解析】 考查情态动词辨析。句意：——莉莉，你能在10分钟内完成这封信吗？——是的，我能。can能够，表示能力。故选C。
24．B 【解析】 考查情态动词辨析。句意：在图书馆我们应该保持安静，禁止大声喧哗。mustn't禁止，多用于指规则制度。故选B。
25．B 【解析】 考查情态动词辨析。句意：——妈妈，今晚我能玩电脑游戏吗？——不行，你必须完成你的家庭作业。must必须。故选B。
26．C 【解析】 考查情态动词辨析。句意：——那个红色书包是玛丽的吗？——不可能是她的。她讨厌那种颜色。can't be不可能是，表示否定的推测。故选C。
27．C 【解析】 考查情态动词辨析。句意：这个设计者已经尝试了每一种可能的方法使这个机器人轻一点，因此你不必担心它的重量。needn't不必。故选C。
28．A 【解析】 考查情态动词辨析。句意：根据通知，这个酒店的客人能够免费使用体育中心。can能够，可以；should应该，应当；must必须。故选A。
29．C 【解析】 考查情态动词辨析。句意：那个不可能是外星人——没有那样的东西！can't be表示否定的推测。故选C。
30．B 【解析】 考查情态动词辨析。句意：他可能喜欢咖啡。我看他偶尔喝一杯。might可能。故选B。
二、1.might/may 2.can't 3.must 4.can't 5.needn't/don't have to
(共44张PPT)
第二轮 语法专项复习
第8单元 情态动词
may (1)“可以”，表示许可
(2)“可能”，表示可能性(猜测)，常用于肯定句中
(3)以may引导的一般疑问句否定回答应为can't/mustn't
(4)表示祝愿，常置于句首 You may sit here if you want.如果你愿意的话，你可以坐在这儿。
— May I go out and play basketball？我可以出去打篮球吗？
— Yes, you may(can)．/No, you can't.是的，你可以。/不，你不可以。
May you succeed！祝你成功！
might may的过去式，表示猜测，可能性比could小 He asked if he might go home.他问他是否可以回家了。
must (1)表示说话人的主观意志，意为“必须”
(2)表示猜测，意为“一定”，语气比may肯定，只用于肯定句中
(3)must的否定式mustn't，表示“禁止；不允许”，不能用于表推测
(4)must表示肯定的猜测，表示否定的猜测用can't
(5)must引导的疑问句，否定回答用needn't/don't have to You must finish your homework first.你必须先完成你的家庭作业。
They must be very tired after a long walk.走了这么远的路，他们一定很累了。
You mustn't play soccer in the street.你不能在街上踢足球。
— Must I get to the office at six? 我必须六点到办公室吗？
— No, you needn't.不，不需要。
will (1)用于第二人称的疑问句，表示说话人征求对方意见
(2)用于各人称，表示意愿
(3)表示习惯或规律 Will you please read it again？你可以再读一遍吗？
Give him a hand, will you？帮他一下，可以吗？
We will do anything for you.我们将为你做任何事。
Dad will walk up and down the room before he decides to do something important.爸爸在决定做某年重要的事情之前会在房间走来走去。
情态动词用法歌诀
情态动词两要点，动词原形跟后面，
还有一点需明白，说话语气较委婉。
can常用于表“能力”，may常用来表“许可”；
must“责任”或“义务”，否定回答needn't换；
need“需要”should“应该”，would“愿”have to“被迫”表客观。
☆【典题链接】
（ ）1. [2019·徐州改编] — I didn't see you at Jim's party last week.
— I had to work that evening, so I ______ go.
A. needn't B. mustn't C. couldn't
【解析】 考查情态动词辨析。句意：——我上周在吉姆的聚会上没有见到你。——那天晚上我得工作， 因此我不能去。needn't不需要， 不必； mustn't禁止， 不允许；couldn't不能。故选C。
C
（ ）2. [2019·沈阳改编] You ______ always be careful with electricity for safety.
A. must B. can C. mustn't
【解析】 考查情态动词辨析。句意：你一定要时刻小心用电以(确保)安全。must必须，一定。故选A。
A
（ ）3. [2018·河南改编] — Are you going to the cinema tonight?
— I don't know. I ______ go or I ______ stay at home.
A. will; will B. must; must
C. might; might
【解析】 考查情态动词辨析。句意：——你今晚要去看电影吗？——我不知道。我可能去也可能待在家里。will将，会；must必须，一定；might可能。结合句意，应选C。
4. You . . (应该) follow the school rules. (根据句意和汉语提示完成句子)
5. 我将成为一名足球运动员，所以我妈妈给我买了一个新足球。(汉译英)
. . . .
C
should
I will become a football player, so my mother bought me a new football
一、单项填空
（ ）1. [2019·营口改编] These days people in China ______ take too much money when shopping because they often use Alipay or WeChat Pay.
A. needn't B. mustn't C. shouldn't
【解析】 考查情态动词辨析。句意：如今在中国人们逛街时不需要带太多的现金，因为他们经常用支付宝或微信支付。needn't 不需要；mustn't 禁止；shouldn't不应该。故选A。
A
（ ）2. [2019·西宁改编] — Look! It ______ be David in the classroom.
— It ______be him. Because I saw him in the library a moment ago.
A. may; mustn't B. must; can't
C. can; can't
【解析】 考查情态动词辨析。句意：——看！教室里的肯定是大卫。——不可能是他。因为我刚刚在图书馆里看到他了。must be一定是；can't be不可能是。故选B。
B
（ ）3. [2019·辽阳改编] — You ______ smoke at the oil station. It's too dangerous.
— I'm sorry, I won't.
A. couldn't B. needn't C. mustn't
【解析】 考查情态动词辨析。句意：——禁止在加油站抽烟，太危险了。——对不起，我不会再这么做了。couldn't不能；needn't不必；mustn't禁止。故选C。
C
（ ）4. [2019·包头改编] — ______ I have a word with you, Mr. Green? It won't take long.
— Okay.
A. Should B. May C. Need
【解析】 考查情态动词辨析。句意：——格林先生我可以和您说句话吗？不会占很长时间。——好的。should 应该；may 可以；need需要。故选B。
B
（ ）5. [2019·贵阳改编]— Dad, my bike is broken. ______ I use yours?
— Sure! It's in the backyard.
A. Must B. Should C. May
【解析】 考查情态动词辨析。句意：——爸爸，我的自行车坏了。我可以用你的吗？——当然！它在后院。must必须；should应该；may可以。故选C。
C
（ ）6. [2019·温州改编] We don't allow taking magazines out, but you ______ copy the article you need on the machine over there.
A. can B. must C. should
【解析】 考查情态动词辨析。句意：我们不允许把杂志带出去，但是你可以在那台设备上把文章复制下来。can能够；可以；must必须；should应该。故选A。
A
（ ）7. [2019·淮安改编] — Will you stay here for dinner with us?
— Sorry, I ______. My mother is waiting for me at home.
A. mustn't B. can't C. needn't
【解析】 考查情态动词辨析。句意：——你会留下来和我们一起吃饭吗？——对不起，我不能，我妈妈正在家里等我呢。mustn't禁止；can't不能；needn't不需要。故选B。
B
（ ）8. [2019· 邵阳改编] — Will Sam go to the cinema with us tonight?
— I'm not sure.He ______ not be free.
A. may B. should C. can
【解析】 考查情态动词辨析。句意：——萨姆今晚会和我们一起去看电影吗？——我不确定。他可能没空。may可能；should应该；can能。故选A。
A
（ ）9. [2019·宜昌改编] — A little bird entered through the open window to join us for dinner last night.
— Wow, the unexpected guest ______ welcomed.
A. will be B. must be C. won't be
【解析】 考查情态动词辨析。句意：——一只小鸟昨晚从窗户飞进来和我们共进晚餐了。——哇，那个不速之客一定受欢迎的。will 将是；must一定；won't不会。故选B。
B
（ ）10. [2019·泰州改编] — This task is really beyond me.
— Well，if you ______ solve it, you won't get paid.
A. can't B. needn't C. mustn't
【解析】 考查情态动词辨析。句意：——这项任务真的超出了我的能力。——如果你不能解决它，你就不能获得报酬。can't不能；needn't不需要；mustn't禁止。故选A。
A
（ ）11. [2019·盐城] Size and type do not matter—you ______ do almost anything if you never give up.
A. should B. must C. can
【解析】 考查情态动词辨析。句意：身高和体型无关紧要——如果你从不放弃，你几乎能做任何事情。can能够；可以。故选C。
C
（ ）12. [2019·益阳] — Whose volleyball is this?
— It ______ be Linda's. She loves volleyball.
A. must B. can't C. needn't
【解析】 考查情态动词辨析。——这个是谁的排球？——它一定是琳达的，她喜欢排球。must be一定是；can't be不可能是；needn't be不必是。故选A。
A
（ ）13. [2019·无锡改编] With this new lock, you ______ search for keys in your bag any more. Isn't it cool?
A. needn't B. can't C. mustn't
【解析】 考查情态动词辨析。句意：有了这种新锁，你将再也不需要在你的包里找钥匙了。这难道不酷吗？needn't不需要；can't不可能；mustn't禁止。故选A。
A
（ ）14. [2019·郴州] — May I take the magazine out of the reading room?
— No, you______. Please read it here.
A. mustn't B. wouldn't
C. needn't
【解析】 考查情态动词辨析。句意：——我可以把杂志从阅览室里拿出来吗？——不，你不能。请在这里读。may引导的一般疑问句，可使用mustn't或can't进行回答。故选A。
A
（ ）15. [2019· 孝感改编] — May I join the art club, Dad?
— If you have interest, you ______.
A. should B. can C. have to
【解析】 考查情态动词辨析。句意：——爸爸，我可以加入美术俱乐部吗？——如果你有兴趣，可以。should应该；can能够，可以；have to不得不，必须。故选B。
B
（ ）16. [2019·湘西] — Is that boy Scott?
—No, it ______ be Scott. Scott is much taller.
A. can B. can't C. mustn't
【解析】 考查情态动词辨析。句意：——那个男孩是斯科特吗？——不，不可能是斯科特。斯科特高得多。can be可能是；can't be不可能是；mustn't be不用于表示推测。故选B。
B
（ ）17. [2019· 广东改编] Dirty air and water are harmful. They ______ kill plants, and even people.
A. can B. can't C. should
【解析】 考查情态动词辨析。句意：脏的空气和水是有害的。它们能够杀死植物甚至人。can能够；可以。故选A。
（ ）18. [2019·新疆改编] David, ______ you please sweep the floor and take out the trash?
A. could B. may C. might
【解析】 考查情态动词辨析。句意：大卫，请你扫地并倒垃圾好吗？ Could you please do sth.请做某事好吗？固定句式。故选A。
A
A
（ ）19. [2018·海南]— Is that Mr. Zhou?
— It ______ be him. He has gone to Beijing.
A. may B. can C. can't
【解析】 考查情态动词辨析。句意：——那是周老师吗？——不可能是他。他去北京了。由答语后半句“他去北京了”可推断，不可能是周老师，表示否定推测用can't。故选C。
C
（ ）20. [2019·毕节改编] — ______ I take the magazine out of the reading room?
— I'm sorry you ______.
A. Could; couldn't B. Must; couldn't
C. May; can't
【解析】 考查情态动词辨析。句意：——我可以把这个杂志拿出阅览室吗？——对不起，你不能。could和may 可用于委婉地提出请求；其否定回答都使用can't或mustn't。故选C。
C
（ ）21. [2019·湘潭] — Who is singing in the next room?
—It ______ be Lisa, but I'm not sure.
A. must B. may C. need
【解析】 考查情态动词辨析。句意：——谁在隔壁房间唱歌？——可能是丽萨，但是我不确定。may be表示可能的推测。故选B。
B
（ ）22. [2019·天津改编] You ______ walk on the wet hill path because you ______ fall and hurt yourself.
A. must; might not B. mustn't; might
C. needn't; need
【解析】 考查情态动词辨析。句意：你千万不能在潮湿的山道上行走，因为你可能摔倒弄伤自己。must必须，一定；might not可能不；mustn't禁止，千万不；might可能；needn't不必；need需要。故选B。
B
（ ）23. [2019· 北京改编] — Lily, ______ you finish the letter in ten minutes?
— Yes, I can.
A. must B. should C. can
【解析】 考查情态动词辨析。句意：——莉莉，你能在10分钟内完成这封信吗？——是的，我能。can能够，表示能力。故选C。
（ ）24. [2019·凉山改编] We should keep quiet in the library. We______speak loudly.
A. must B. mustn't C. can
【解析】 考查情态动词辨析。句意：在图书馆我们应该保持安静，禁止大声喧哗。mustn't禁止，多用于指规则制度。故选B。
C
B
（ ）25. [2019·南充改编] — Mum, may I play computer games this evening?
— No way, you ______ finish your homework.
A. can B. must C. may
【解析】 考查情态动词辨析。句意：——妈妈，今晚我能玩电脑游戏吗？——不行，你必须完成你的家庭作业。must必须。故选B。
B
（ ）26. [2019·河池改编] — Is that red schoolbag Mary's?
— It ______ be hers. She hates that color.
A. may B. must C. can't
【解析】 考查情态动词辨析。句意：——那个红色书包是玛丽的吗？——不可能是她的。她讨厌那种颜色。can't be不可能是，表示否定的推测。故选C。
（ ）27. [2019·安徽改编] The designer has tried every possible way to make the robot light, so you ______ worry about its weight.
A. must B. may C. needn't
【解析】 考查情态动词辨析。句意：这个设计者已经尝试了每一种可能的方法使这个机器人轻一点，因此你不必担心它的重量。needn't不必。故选C。
C
C
（ ）28. [2019·连云港改编] According to the notice, guests at this hotel ______ use the sports center at no extra cost.
A. can B. should C. must
【解析】 考查情态动词辨析。句意：根据通知，这个酒店的客人能够免费使用体育中心。can能够，可以；should应该，应当；must必须。故选A。
A
（ ）29. [2019·绥化] That ______be an alien—there's no such thing!
A. might B. must C. can't
【解析】 考查情态动词辨析。句意：那个不可能是外星人——没有那样的东西！can't be表示否定的推测。故选C。
（ ）30. [2019·南通改编] He ______ like coffee. I see him drink a cup at times.
A. must B. may C. can't
【解析】 考查情态动词辨析。句意：他可能喜欢咖啡。我看他偶尔喝一杯。might可能。故选B。
C
B
二、使用适当的情态动词完成句子
1. — Wow, another gift! What's in the box?
— I'm not sure. It . . be a pair of sports shoes.
2. Jack . . be at home because I saw him in the library just now.
3. — Why . . we close that chemical factory?
— Because it has caused lots of pollution. We need better environment.
4. Mr. Green . . be at home now. He went abroad on vacation last Friday.
5. — Must I come here before 6：30 tomorrow?
— No, you . .. There will be plenty of time.
might/may
can't
must
can't
needn't/don't .have .to
