九年级unit7课件SectionA3

1、根据课本内容，完成下列句子。根据课本内容，完成下列句子。1. 我认为不应该允许十六岁的孩子开车。我认为不应该允许十六岁的孩子开车。 I dont think sixteen-year-olds _ _ _ to drive.2. 我同意。他们还不够严谨。我同意。他们还不够严谨。 I agree. They arent serious enough.should be allowed3. 你认为应该鼓励青少年去自己做决定吗？你认为应该鼓励青少年去自己做决定吗？ Do you think teenagers _ _ _ to make their own decisions?4. 不，我不认同这个

2、。青少年还太小不能自不，我不认同这个。青少年还太小不能自己做决定。己做决定。 No, I dont agree with this. Teenagers are _ _ _ make their own decisions. should be encouragedtoo young to5. 不应该允许青少年去做兼职。不应该允许青少年去做兼职。 Teenagers _ _ _ _ to have part-time jobs. 6. 不，我不同意。他们可以从工作当中学不，我不同意。他们可以从工作当中学到很多。到很多。 I disagree. They can _ a lot _ workin

3、g.learn from should not be allowed 7. 你认为如果不用闪光灯的话可以允许我们你认为如果不用闪光灯的话可以允许我们拍照吗？拍照吗？ Do you think we _ _ _ to take photos if we dont use a flash. 8. 如果不用闪光灯的话，那么拍照是可以的。如果不用闪光灯的话，那么拍照是可以的。 If you dont use a flash, then it may be OK.may be allowed 温故温故 在英语中，动词有两种语态，即主动语在英语中，动词有两种语态，即主动语态和被动语态。主动语态表示主语是动

4、作的态和被动语态。主动语态表示主语是动作的执行者，被动语态表示主语是动作的承受者。执行者，被动语态表示主语是动作的承受者。在前面两个单元我们已经学习了一般现在时在前面两个单元我们已经学习了一般现在时的被动语态和一般过去时的被动语态，它们的被动语态和一般过去时的被动语态，它们的结构为：的结构为：are/ is +及物动词的过去分词及物动词的过去分词, were/ was+及物动词的过去分词。及物动词的过去分词。 知新知新 本单元我们主要了解含有情态动词的本单元我们主要了解含有情态动词的被动语态。它的结构是什么呢？观察下面被动语态。它的结构是什么呢？观察下面例句中含情态动词被动语态的各种形式例句中

5、含情态动词被动语态的各种形式，然后补全结论中所缺的内容。，然后补全结论中所缺的内容。【例句例句】1. Many trees should be planted in the mountains. 应该在山上种许多树。应该在山上种许多树。2. You can take this book home. （改为被（改为被 动语态）动语态）This book can be taken home (by you). 3. This problem cant be worked out very easily. 这道题轻易算不出来。这道题轻易算不出来。4. Must the work be done at

6、 once? 这项工作必须立即完成吗？这项工作必须立即完成吗？【结论结论】A. 含有情态动词的被动语态的结构为：情含有情态动词的被动语态的结构为：情 态动词态动词+_+及物动词的及物动词的_。B. 含有情态动词的主动语态变为被动语态含有情态动词的主动语态变为被动语态 时，要把主动语态的时，要把主动语态的_变成被动语变成被动语 态的主语。态的主语。C. 变为否定句时只需要在情态动词后加变为否定句时只需要在情态动词后加 _。D. 变为一般疑问句时只需把变为一般疑问句时只需把_提到提到 句首。句首。be 过去分词过去分词宾语宾语not情态动词情态动词【运用运用】. 选择最佳答案。选择最佳答案。( )

7、 Young trees should _ every year. A. be planted B. planted C. plantA. 按要求完成下列各句，每空一词（含按要求完成下列各句，每空一词（含 缩写）。缩写）。1. We must do the work right now. （改为被（改为被 动语态）动语态） _ _ _ _ _ right now.2. Teenagers should be allowed to go out with their friends on school nights. （改为否定句）（改为否定句） Teenagers _ _ _ to go ou

8、t with their friends on school nights.The work must be done shouldnt be allowed 3. A book should be read each month. (改改 为一般疑问句为一般疑问句) _ _ _ _ _ each month?Should a book be read4a Rewrite the sentences according to the example.1. You must clean your bedroom every day. Your bedroom must be cleaned ev

9、ery day.2. Parents should encourage teenagers to do social work for their community. Teenagers _ _.3. Can Lucy do her homework tomorrow instead? Can _ _? should be encouraged (by their parents) to do social work for their community the homework be done (by Lucy) tomorrow insteadn. 社区，社区，社团社团4. Do yo

10、u think we must keep teenagers away from the Internet? Do you think teenagers _?5. Parents should give teenagers chances to make their own decisions. Teenagers _ _ must be kept away from the Internetshould be given chances to make their own decisions.keepaway from 避免接近，远离避免接近，远离n. 机会，可能机会，可能性性自己做决定自

11、己做决定Should teenagers _ (ask) to move out when they start working? In many Western countries, teenagers _ (allow) to move out at eighteen. Their parents believe that they should _ (educate) to take care of themselves from a young age. This way, when they _ (start) working they can manage their own li

12、ves. 4b Fill in the blanks with the correct forms of the words in brackets.be askedare allowedbe educatedstartv. 教育；教导教育；教导v. 完成；应付完成；应付However, in most Asian societies, it is not common for teenagers to _ (move) out. Chinese parents believe that it is better for children to live with parents who can _ (take) care of them. But the young should then look after their parents as they get older. That is why many Chinese adults _ (continue) to live with their parents.movetakecontinuen. 社会社会You and your frien