Unit 7 Section A Grammar Focus-4c课件 2023-2024学年人教版英语九年级全册

Section A Grammar Focus-4c Grammar Focus I don't think 16-year-olds should be allowed to drive. I agree. They aren't serious enough. Do you think teenagers should be encouraged to make their own decisions? No, I don't agree with this. Teenagers are too young to make their own decisions. Teenagers should not be allowed to have part-time jobs. I disagree.They can learn a lot from working. Do you think we may be allowed to take photos if we don't use a flash? If you don't use a flash, then it may be okay. 同意（某人的意见、观点等） 太......而不能...... 向......学到...... 1. I don't think 16-year-olds should be allowed to drive. 2. Do you think teenagers should be encouraged to make their own decisions? 3. Teenagers should not be allowed to have part-time jobs. 4. Do you think we may be allowed to take photos if we don't use a flash? A. I disagree.They can learn a lot from working. B. If you don't use a flash, then it may be okay. C. I agree. They aren't serious enough. D. No, I don't agree with this. Teenagers are too young to make their own decisions. C D A B Practice the grammar 含有情态动词的被动语态 常用的情态动词有： can, could (能；会), may; might (可以) must(必须), should(应该), will; would(愿意) have to(必须；不得不), had better(最好) 1. 将含有情态动词的主动语态变为被动语态的方法： 1) 将主动语态的宾语变成被动语态的主语； 2) 将“情态动词 + 动词原形”变成“情态动词 + be + 及物动词的过去分词”。 His bedroom should be cleaned in the morning. He should clean his bedroom in the morning. 1.含有情态动词should的被动语态结构式： 　　　should + be+及物动词的过去分词。 (1)肯定句结构为：主语+ should+be+ 动词过去分词. 　eg: 你应该自己完成作业。 　Your homework should be finished by yourself. (2)否定结构为：主语+should+not+ be+动词过去分词.　　 　 eg：不应该允许青少年晚上外出。 　 Teenagers should not be allowed to go out at night. 含有情态动词should的被动语态 (3)一般疑问句结构为：Should+ 主语+ be+ 动词过去分词? 　 回答：Yes, 主语+should./ No, 主语 + shouldn’t. 　 eg:这些小树应该每天浇水吗？ 　 Should these young trees be watered every day? 　 Yes, they should. /No, they shouldn’t. 　 对，应该。/不，不应该。 (4)特殊疑问句结构为：疑问词+一般疑问句？　　 　eg：应该允许学生们做什么？ 　What should students be allowed to do? Teenagers ___