人教版八年级英语下册 Unit 4 Section A Grammar focus —4c 课件(共33张PPT)

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命题点2 情态动词表推测的用法
命题点1 情态动词的基本用法 情态动词的基本用法主要以考查情态动词的 否定辨析为主,如mustn't, needn't, can't等。 考生在解答此类试题时,首先观察题中 是否涉及各情态动词的常用句型,如:May I…? /Can/Could you…? /Can I help you? /Must I…?等;如果没有,先确定各选项的 含义及用法,然后根据语境确定正确答案。
7. 或许你应当去他家。 Maybe you ______ could go to his house. _______ 8. 我猜我可以,但是我不想让他吃惊。 I guess I _______, could but I don’t want to _______ surprise _______. him
注意
2. 由may引出的一般疑问句, 肯定回答 用may;否定回答用can't / mustn't。 3. 由Could you / I please …?引出的一 般疑问句, 肯定回答用can;否定回答用 can't .
◆情态动词否定形式的基本用法
mustn’t 禁止,不允 You mustn't play 许,语气比 football on the road. (2014 A卷31题, 2013 B卷28题) 较强烈 你禁止在马路上踢足球。 The boy is so tired that can’t he can't open his eyes. 不能,不会 (2013 A卷30题, 这个男孩如此地累以至于 2011年30题) 他不能睁开他的眼睛。
can't的过去式, He couldn't play the couldn't 意为“不能,不 piano when he was five. 会” 他五岁时不会弹钢琴。 We needn't hurry, for there's plenty of time. 我们不必着急,因为时 间很充裕。
根据课本内容,完成下列句子。
1. 你看上去很疲劳,怎么了? You ____ look tired. What’s ___ the _______? matter 2. 昨晚,我一直学习到午夜,因此我没有 睡足觉。 until _________ midnight last night so I I studied _____ didn’t get ___ enough ______ sleep.
情态动词的基本用法
1. —Must we finish the work today? —______. C We have something else to do tomorrow. A. Yes, we can B. No, we can't C. Yes, we must D. No, we needn't
5. 他应当如何做? What _______ should he do? _____ 6. 他应当和他的朋友谈一下,以便他能 向他道歉。 He ______ should _____ talk ___ to his friend so ____ that he can say he’s sorry. ____
3. 我应该做什么? _____ What _______I should do? 4. 你为什么不忘掉此事呢?尽管她错了, 但那不是一件大事。 _____ ____ you forget about it? Why don’t Although she’s wrong, it’s not ____ a _________ ___ big _____. deal
D 2. He ________ speak English very well although he has studied it for only one year. A. mustn't B. can't C. must D. can 3. It's surprising that B Mr. Ma's little daughter ________ speak English so well. A. must B. can C. mustn't D. can't
needn't 不需要 (2014 B 卷30题)
won't 不会
Don't worry. I won't break it. 别担心,我不会打碎它。 We shouldn't waste water. 我们不应该浪费水。 had better not smoke. It's had bad for your health. better 最好不要 你最好不要吸烟。它对你的健 not 康有害。
注意
1. 由must引导的一般疑问句, 肯定回答 用must或have to, 否定回答用needn't或don't have to. 如: —Must I go with them? 我必须跟他们走吗? —Yes, you must/have to. / No, you needn't / don't have to. 是的,你必须。/ 不,你不必。
一、按要求写出下列词汇或词组。 explain 1. make sth. clear (同义词) ___________ 2. talk (同义词) _______________ communicate 3. not allow (同义词) ______________ refuse 4. worried (同义词) ______________ nervous get on with 5. get along with (同义词) ____________ 6. communicate (名词)communication _____________ older/ elder 7. old (比较级) _______________
第一部分:掌握提出问题的方法 What’s wrong? with sb. What’s the matter? What’s the problem/the trouble? 并能讨论所给出的建议。
第二部分 语法专题研究
专题九 情态动词
(必考:每卷1道,1分,单选)
命题点1 情态动词的基本用法
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