人教新版英语九年级Unit7SectionAGrammar Focus-4c课件

,英语教学课件系列,九年级,Unit 7 Teenagers should be allowed to choose their own clothes.,Period 3,Review,一般现在时的被动语态,在英语中，动词有两种语态，即主动语态和被动语态。被动语态的基本结构是“助动词 be + 及物动词的过去分词”，其中助动词be有人称、数和时态的变化,其变化规则与be作为连系动 完全一样。,3.主动语态变为被动语态的方法,第一步:将主动语态的宾语改为被动语态的主语； 第二步:将主动语态的谓语改为“be+及物动词的过去 分词”结构； 第三步:将主动语态的主语改为介词by的宾语，放在 谓语之后(有时可省略)。 如图示：,They (主语）grow (谓语）tea (宾语）in the south-east of China.,被动语态:,主动语态:,Tea (主语）is grown (谓语）by them in the south-east of China.,.将下列句子变为被动语态。,I keep a dog in my house. _,A dog is kept in my house by me.,2. My parents allow me to choose my own clothes. _ _,I am allowed to choose my own clothes by,my parents .,3. Tom broke the windows yesterday. _,The windows were broken by Tom yesterday.,4. Sally gave the dictionary to Kathy. _,The book was given to Kathy by Sally.,含有情态动词的主动句变为被动句时，谓语动词部分改为“情态动词+be+及物动词的过去分词”。 We can write Letters can be written letters in English. in English by us.,点拨,含有情态动词的被动语态,4a Rewrite the sentences according to the example.,1. You must clean your bedroom every day. Your bedroom must be cleaned every day . 2. Parents should encourage teenagers to do social work for their community. Teenagers _ _ .,should be encouraged to do social,work for their communit,3. Can Lucy do her homework tomorrow instead? Can_ _ ?,Lucys homework be done by her,tomorrow instead,Do you think we must keep teenagers away from the Internet? Do you think teenagers _ _ ?,must be kept away,from the Internet,5. Parents should give teenagers chances to make their own decisions. Teenagers _ _ .,should be given chances to make,their own decisions,4b Fill in the blanks with the correct forms of the words in brackets.,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 lives. However, in most Asian,be asked,are allowed,be educated,start,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.,move,take,continue,4c You and your friend are starting an English club. Make a list of rules about what should and should not be allowed.,A: Members should be allowed to use dictionaries. B: Yes, but they should only use English-English dictionaries.,Language points,Do you think teenagers should be encouraged to make their own decisions? 你认为应该鼓励青少年自己做决定吗？ make ones own decision 意为“自己做决定”，相当于make a decision for oneself。 例：I just want to make my own decision. 我只想能够自己做决定。,2. Parents should give teenagers chances to make their own decisions. 父母应该给青少年自己做决定的机会。 chance (a suitable time or situation when you have the opportunity to do sth.) 可数名词，意为“机会；机遇”，其后可接to do sth.或of sth.。若表示“做某事对某人来说是一次机会”，其后可接for sb. to do sth.。 例：I never miss a chance to play football. 我从不错过踢球的机会。 Its a good chance for you to meet. 这是一个你们见面的好机会。,3. This way, when they _(start) working they can manage their own lives. 这样，当他们开始工作时，他们能应付他们自己的生活。 manage 意为“完成(困难的事);应付(困难) 局面”， 其后可接名词、代词或动词不定式。 例：Im not sure how we will manage it. 我不确信我们将如何完成这件事。 You should manage to finish the work in time. 你应该设法及时完成工作。,辨析,manage to do sth. 与 try to do sth.,例：The shirt was very dirty, but he managed to clean it. 这件衬衫很脏，但他设法把它洗干净了。 The boy tried to move the stone but failed. 这个男孩试图移动这块石头，但失败了。,Exercises,.单项选择,Teenagers _allowed to drive a car. A. should not be B. should be not C. not should be D. shouldnt 2. Linda saw a pen on the road, so she stopped _it up. A. pick B. to pick C. picking D. picked,A,B,3. Yesterday my sister had her computer _at the supermarket. A. mend B. to mend C. mended D. mending 4. He never studies. He plays computer games all day_. A. instead B. instead of C. however D. but,C,A,5. -Can you hear me? -No, I cant. Would you please speak _. A. clearly enough B. clear enough C. enough clearly D. enough clear 6. Old people must _. A. speak polite B. be spoken to politely C. speak to polite D. be spoken politely,A,B,7. Things should _ here before you enter the Great Museum. A. keeps B. keep C. be kept D. are kept We wont allow _ in the cinema. But you are allowed _in the restroom. A. smoking; smoking B. to smoke; to smoke C. smoking; to smoke D. smoke; smoke,C,C,9. -I think you should phone Jenny and say sorry to her. -_. It was her fault. A. Not at all B. Not possible C. No chance D. No way 10. I think some of the school rules should _. A. be change B. be changed C. be changing D. change,D,B,11. -Do you believe there are aliens? -Im afraid not. I dont think aliens _ in space. A. can find B. can be found C. can be founded D. cant be founded 12. The flowers must _ every day. A. water B. be watered C. watered D. watering,B,B,13. -Can sixteen-year-olds drive their cars to school? - No. they shouldnt _ to drive because they are not serious enough. A. allow B. allowed C. be allowed D. have allowed 14. Dont worry. The work _ in two days. A. will finish B. is done C. will be finished D. finish,C,C,15. _ middle school students allowed to use mobile phone at school ? A. Do B. Did C. Are D. Can 16. I dont think teenagers should be allowed to drive , because they are _. A. not enough serious B. not serious enough C. too serious D. to serious,C,B,17. Water _ into ice. A. will changed B. must be changed C. should change D. can be changed 18. A strange sound _ yesterday evening. A. was heard B. hears C. heard D. is heard,D,A,19. The new play _ in theatre now. Why dont you go in and see it? A. is being shown B. is showing C. is shown D. shows 20. Miss Chen _ just _ to speak at the meeting. A. has