Unit 4 Being a good learner 单元语法沙龙(课件)冀教版英语八年级上册

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Unit 4 Being a good learner 单元语法沙龙(课件)冀教版英语八年级上册

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(共20张PPT)
单元语法沙龙
Unit 4 Being a good learner
写出下列句子中的情态动词
1. She should see a doctor if she doesn’t feel well. ________
2. He may come or he may not. ________
3. We must follow the safety regulations. ________
4. She can dance very well. ________
5. May we be excused from the meeting ________
6. You mustn’t touch the exhibits in the museum. ________
should
may
must
can
May
mustn’t
情态动词
情态动词表示说话人对所诉动词或状态的态度或看法。情态动词一般没有人称和数的变化,在句中不能单独作谓语,必须和动词原形连用。表示否定时,在其后面加not;表示疑问时,将它提到句首。常见的情态动词有:can、could、may、might、must、need、shall、should、will、would 等。
考点1 情态动词的用法
情态动词 意义 用法 例句
should 应该 表示义务或职责 We should follow the traffic rules. 我们应该遵守交通规则。
应该 表示劝告、建议,用于主语为第二人称的句子。 You should study hard.
你应该努力学习。
情态动词 意义 用法 例句
should 应该 表示征求同意或征询意见,用于主语为第一人称的疑问句。 What should I do to solve this problem 我应该怎么解决这个问题?
应该 表示推测时,把握性比较大。 He should be at home because he is ill. 他应该在家,因为他生病了。
情态动词 意义 用法 例句
can/ could 能;会 表示能力(could 表示过去的能力) Jack can draw, and his sisters can swim. 杰克会画画,他的姐姐们会游泳。
情态动词 意义 用法 例句
can/ could 能;可以 表示请求或许可(could 语气更委婉),如果表示允许某人做某事,要用can 而不用could。 Can I have a glass of water 我可以喝杯水吗?
情态动词 意义 用法 例句
can/ could 可能 表示推测,多用于疑问句或否定句中,can’t 意为“不可能”。 Can the news be true It seems so unbelievable. 这个消息会是真的吗?它似乎太难以置信了。
It can’t be true. 这不可能是真的。
情态动词 意义 用法 例句
may/ might 可以 用于肯定句中,表示许可,比can 正式。 Students may borrow up to five books from the library at a time. 学生们一次最多可以从图书馆借五本书。
情态动词 意义 用法 例句
may/ might 可以 用于疑问句中,表示请求,might 语气更委婉。 May I join in the volunteer program on weekends
我可以在周末参加这个志愿者项目吗?
情态动词 意义 用法 例句
may/ might 可能 表示推测,一般用于肯定句中, might 可能性低于may。 It may rain tomorrow, so you’d better take an umbrella with you. 明天可能会下雨,所以你最好带上一把雨伞。
情态动词 意义 用法 例句
must 必须 表示义务或责任。 You must wear a seat belt in the car. 在车里你必须系安全带。
肯定 表示肯定的推测,仅用于肯定句。 He must be at school because his bike is here. 他一定在学校,因为他的自行车在这儿。
记忆口诀
情态动词的用法
should 表应该,建议义务在,推测按常理,把握比较大。
can 有能力意,请求许可行,否定疑表可能,口语常运用。
may 许可特礼貌,正式场合妙,也许表可能,肯否都用到。
must 表必须,禁止用 mustn't,肯定表推测,语气很笃定。
敲黑板 mustn’t表示禁止。
考点2 情态动词的特殊用法
1. 回答由must 引出的一般疑问句时,肯定回答用must;否定回答常用need not,或don’t have to,而不用must not。
·—Must I finish the work today 我必须今天完成工作吗?
·—Yes, you must./No, you needn’t./ No, you don’t have to. 是的,你必须。/ 不,你不必。
2. 回答由may 引出的一般疑问句,肯定回答有:Yes, you may./Yes, of course./Yes, certainly./ Sure. 等;否定回答有:No, you mustn’t./No, you can’t. 等。
·—May I use your dictionary 我可以用一下你的词典吗?
—Yes, you may. Here you are. 是的,你可以。给你。
·—May I park my car here 我可以把我的车停在这儿吗?
—No, you mustn’t. This is a no-parking zone.
不,你不可以。这是禁停区。
一 单项选择
1. With the help of modern technology, now people _____ enjoy the proudest moment when China’s first astronaut Yang Liwei entered space.
A. may B. can C. should D. must
2. [无锡] Shh... ! This is a library. You _____ keep your voice down.
A. can B. can’t C. should D. shouldn’t
B
C
3. When you make a fresh salad, you _____ add your favorite fruit if you would like to.
A. may B. should C. must D. have to
4. —People _____ wear helmets(头盔)when they ride e-bikes according to the traffic rules.
—Yes, or they will be punished.
A. must B. can C. may D. might
A
A
5. [河北] —Look! Is that girl Alice
—No, it _____ be her. She is on a tour in Beijing now.
A. can B. can’t C. must D. mustn’t
6. [北京] —Bill, _____ I use your ruler
—Of course you can. Here you are.
A. can B. must C. need D. should
B
A
二 短文填空
It’s Monday morning. Jack knows he 7. ________ (must / can) get up early for school. When he gets to the classroom, he finds his desk in a mess. He thinks he 8. ________ (should / can) clean it up right away.
In the English class, the teacher says, “You 9. ________ (must / may) pay attention to the grammar rules. And you 10. ________ (can / may) ask me if you have any questions.”
must
should
must
can
After class, Jack wants to borrow a dictionary from his classmate. He asks“, 11. ________ (May / Can) I use your dictionary ” His classmate says,“ Sure, you 12. ________ (should / may).”At lunchtime, Jack sees his friend eating junk food. He tells him, “You 13. ________ (shouldn’t / can’t) eat too much of that. It’s not good for you.”
It’s a busy but meaningful day. Jack hopes he 14. ________ (can / may) do better in his studies tomorrow.
May
may
shouldn’t
can

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