中考英语二轮语法专题复习课件. 情态动词 (共25张PPT)

(共25张PPT)
人教版九年级总复习
情态动词
以下为初中阶段常见的情态动词(组)：
情态动词(组) 含义及用法 例句
can 表示能力，意为“能，会”。可与be able to 相互转化。 Can you speak English？你会讲英语吗？
表示请求、允许，意为“可以”。 Can I use your bike to the downtown？我能用你的自行车去市区吗？
情态动词(组) 含义及用法 例句
can't 表示能力，意为“不能，不会”。 There is something wrong with my eyes. I can't see things around me clearly. 我的眼晴有点毛病。我看不清周围的东西。
表示否定推测，语气强烈。意为“一定不，不可能”，可能性几乎为零。 The cup can't be Cindy's, because she didn't come to the party.这个杯子不可能是辛迪的。因为她没来参加聚会。
情态动词(组) 含义及用法 例句
can't 表示拒绝对方的请求或者不同意、不允许，意为“不可以”。 You can't take the book out of the library without permission. 未经允许，你不能把书带出图书馆。
could can的过去式，意为“能，会”，表示过去的能力。 My sister could walk when she was 10 months old.我妹妹10个月的时候就会走路了。
情态动词(组) 含义及用法 例句
could 在疑问句中表示委婉的请求。 Could you just tell him to call me back？你能告诉他给我回个电话吗？
表推测，意为“有可能，也许”(20%～80%的可能性)，语气缓和，较委婉。 The train to Beijing could be late.去北京的火车可能会晚点。
情态动词(组) 含义及用法 例句
couldn't could的否定式，意为“不能，不会”。 Words couldn't express her feelings at that moment.言语不能表达她那时的感受。[冀教九(全)Unit 4 P62]
must 表示主观看法，意为“必须，一定”。 We must be patient to others.我们必须对他人有耐心。
表示非常有把握的肯定推测(100%的可能性)，意为“一定，肯定”。 Mary is not here. She must have already left.玛丽不在这儿。她肯定已经离开了。
情态动词(组) 含义及用法 例句
mustn't must的否定式，意为“一定不要，禁止”。 You mustn't play in the street.你不能在街道上玩耍。
may 表示请求、许可，意为“可以”。 May I ask you a question？我可以问你一个问题吗？
情态动词(组) 含义及用法 例句
may 意为“有可能，也许”，用于肯定句，表示把握不大的推测。 Many students become busy taking notes and they may fail to follow the teacher.许多学生开始忙着做笔记，他们可能会跟不上老师。[2021重庆A卷短文填空]
用于祈使句，表示祝福和祝愿，用法和wish相似。 May your dream come true.祝你梦想成真。
情态动词(组) 含义及用法 例句
might may的过去式。 She worried that I might be angry.她担心我会生气。
表示请求、许可，语气比may更委婉。 Might I have a talk with you？我可以和你谈谈吗？
表推测，意为“有可能，也许”，可能性小于may，语气缓和，较委婉。 She might have gone to the library. She likes reading in the afternoon. 她或许去图书馆了。她下午喜欢看书。
情态动词(组) 含义及用法 例句
need 表示需要，主要用于否定句和疑问句中。 Need I leave now？我需要现在离开吗？
needn't 意为“不需要，没必要”。 You needn't worry about Tom. He isn't a child any more.你不必担心汤姆。他不再是一个小孩了。
情态动词(组) 含义及用法 例句
should/ought to 意为“应该”，表示要求和命令，也可以表示劝告或建议。 We should work harder to protect our world.我们应该更加努力地保护我们的世界。[外研八(上)Module 9 P78]
表示征询意见，常用于疑问句中。 How much rent(租金)should I pay for this place？我租这个地方应该付多少租金？[2019辽阳补全对话]
情态动词(组) 含义及用法 例句
shouldn't 意为“不应该”。 You shouldn't start eating first if there are old people at the table.如果餐桌上有老人，你不应该先开始吃饭。[鲁教九(上)Unit 3 P37]
shall 表示请求或征求对方意见，多用于第一、三人称，构成疑问句。 Shall we get each of them a card and a gift to say thank you？我们要给他们每人一张卡片和一份礼物来表示感谢吗？[人教九(全)Unit 14 P106]
情态动词(组) 含义及用法 例句
shall 表示决心、警告、命令，多用于第二人称。 You shall sit on your seats until all the exam papers are collected.你们必须坐在你们的座位上，等所有试卷收好才能离开。
will 表示询问、请求，用于疑问句中，常用于第二人称。 Will you come with us 你能和我们一起去吗？[冀教七(下)Unit 1 P15]
情态动词(组) 含义及用法 例句
would 表示自愿做或主动提出做什么，表意志、愿望或决心等。 Jane said she would not go with Tom, for she didn't have time.简说她不愿意和汤姆一起去，因为她没时间。
had better 意为“最好”。多用于第二人称，否定形式为had better not。 It is raining heavily. You had better stay at home.外面雨下得很大。你最好待在家里。
have to 意为“不得不”，多表示客观必要。 I have to prepare for the exam. 我不得不为考试做准备。
拓展
(1)由must引出的一般疑问句，肯定回答常用“Yes, 主语＋must/have /has to.”；否定回答常用“No, 主语＋needn't/don't/doesn't have to.”，不能用mustn't回答。
(2)表示肯定推测的情态动词有：must>can/could>may>might(按语气强弱)。
(3)表示否定推测的情态动词有：can't>may not(按语气强弱)。
(4)对由could引出的一般疑问句，回答用can而不用could。
随堂检测
1. (2019宜宾21题)Zhao Liying, who played in Legend of Chu Qiao, says: “As an actress, you ________ be hard working.”
A. can　　　　B. may　　　　C. must
2. (2018宜宾23题改编)Mr. Green ________ be at home now. He went abroad on vacation last Friday.(盲填)
微语境夯基
绵阳、宜宾5年真题精选
C
can't
3. (2021成都36题改编)Life ________ be easy or difficult; sometimes it depends on how you look at it.(盲填)
4. (2021乐山26题改编)—Could I ride an electric bicycle to school, Mr. Wang
—No, you ________. Students under the age of 16 aren't allowed to ride electric bicycles.(盲填)
5. (2021自贡24题改编)—__________I take a seat here
—No, you can't. They're only for the old and children.(盲填)
四川其他地市5年真题精选
can
can't
May
6. (2020成都35题改编)—Look! People outside are wearing thick coats.
—The weather ________ be very cold.(盲填)
7. (2020乐山24题改编)—________ we leave the library before 5 o'clock
—No, you needn't. You can stay here until 5：30.(盲填)
Must
must
8. (2020攀枝花29题改编)—China is going to use AI to protect the Great Wall.
—Great! AI is so helpful that people ________ use it in their daily life now.(盲填)
9. (2018凉山州40题改编)Parents ________ put the things like knives and medicine away in the house to keep children safe.(盲填)
can
should
10. (2021云南改编)You ________ take photos here! Look at the sign. It says “No photos”．(盲填)
11. —Is that man Mr. Smith
—It ________ be him. He has gone to New York on business.(盲填)
12. —________ you give me a hand？I can't move the big box by myself. (盲填)
—No problem.
拓展提升
mustn't
can't
Could
13. You ________ not be able to control all the things that happen to you, but you can decide not to be influenced too much by them.(盲填)
14. Go and help Julian. She ________ clean the classroom on her own.(盲填)
15. I think Emily ________ have read this book. She knows all the stories in the book.(盲填)
may
can't
must
外文素材选自Reading Wonders
农场劳动记
My parents run a farm and we all live there. Sometimes I
16 help them do some work. One morning, I found my parents were not at home. I guessed they 17 be working on the farm. So I went to help them. I thought I could finish some small tasks. Milking cows was one of my tasks.
语篇提能
It 18 be a little hard for people to do that for the first time. But it was not the first time that I had done that. Therefore, I 19 spend too much time finishing it. When I looked at the clock, I realized I
20 go to school. Then I returned to the house to change my clothes and get my backpack. What a bright morning!
( )16. A. may　　 B. can　　 C. should　　 D. shall
( )17. A. must B. shall C. could D. should
( )18. A. need B. should C. may D. must
( )19. A. shouldn't B. needn't
C. can't D. mustn't
( )20. A. would B. shall C. may D. should
B
A
C
B
D