人教版英語九年級上冊Unit 7 Teenagers should be allowed to choose their own clothes. Section A Grammar Focus-4c課件

Unit 7 Teenagers should be allowed to choose their own clothesSection A Grammar Focus-4c人教版英語九年級上冊To understand the grammar should be allowed to do.To practice the passive voice. If you like, you can do more exercises. Objectives cry all night stay by one’s side sleep in warm arms run through the field make sure keep sb. from danger give sb. a hug lift up talk back整夜哭待在某人身邊睡在溫暖的臂彎里穿過田野確定；確保使某人遠離危險擁抱某人舉起，提起回嘴；頂嘴Translate the phrases.Review watch scary movies give sb. awful dreams be back by ten think back to those times cough for days have scary dreams be late for school stay out regret doing sth.看恐怖電影帶給某人惡夢在10點前回來回想那些時光咳嗽好幾天做可怕的夢上學(xué)遲到待在外面；不回家后悔做過某事What can you do at school? What can’t you do at school?Do you agree or disagree? Free talkI think students should be allowed to do homework with friends.Sixteen-year-olds should not be allowed to drive.Do you think sixteen-year-olds should be allowed to choose their own clothes?Look at these sentences.含情態(tài)動詞的被動語態(tài)肯定句: 主語+ 情態(tài)動詞+be+ 動詞過去分詞.否定句: 主語+情態(tài)動詞+not+ be+動詞過去分詞.疑問句: 情態(tài)動詞+ 主語+ be+ 動詞過去分詞?(一)將主動語態(tài)的賓語變成被動語態(tài)的主語。(二)將含情態(tài)動詞的主動句式變成被動句式，即：“情態(tài)動詞+動詞原形”變成“情態(tài)動詞+be+過去分詞”，然后再在其后加“by+主動句中的主語(人稱代詞用賓格)”。by短語也可省略。 請看下列各句：轉(zhuǎn)變方法1. You should finish your homework first. Your homework should be finished (by you) first. 2. You can take this magazine home. This magazine can be taken home (by you). 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含情態(tài)動詞的被動語態(tài)常用的情態(tài)動詞有：can, could (能；會), may; might (可以) must(必須), should(應(yīng)該), will; would(愿意)have to(必須；不得不), had better(最好)1.含情態(tài)動詞should的被動語態(tài)結(jié)構(gòu)式：　　　should + be+及物動詞的過去分詞?！?1)肯定句結(jié)構(gòu)為：主語+should be+及物動詞的過去分詞+ (by+賓語)?！g: 你應(yīng)該自己完成作業(yè)?！our homework should be finished by yourself.含情態(tài)動詞should的被動語態(tài)　(2)否定結(jié)構(gòu)為：主語+ should + not+ be +及物動詞的過去分詞+ (by+賓語)?！　　g：不應(yīng)該允許青少年晚上外出?！eenagers should not be allowed to go out at night. (3)特殊疑問句結(jié)構(gòu)為:疑問詞+一般疑問句？　　　eg：應(yīng)該允許學(xué)生們做什么？　What should students be allowed to do?　(4)一般疑問句結(jié)構(gòu)為:Should +主語+ be+及物動詞的過去分詞+ (by+賓語)？　回答:Yes，主語+should./No，主語 + shouldn’t.　eg:這些小樹應(yīng)該每天澆水嗎？　Should these young trees be watered every day?　Yes, they should. /No, they shouldn’t.　對，應(yīng)該。/不，不應(yīng)該。主動句變被動句的步驟與其它情況相同。We should allow teenagers to watch TV on Sunday. Teenagers should be allowed to watch TV on Sunday( by us).People may catch fish in the river.Fish may be caught in the river (by people).1.I can finish the work. The work can be finished by me.一般問句： Can the work be finished by you?2.We should plant many more trees. Many more trees should be planted by us.一般問句： Should many more trees be planted by us?Teenagers should be allowed to drive the car .3.Parents should allow teenagers to drive the car.一般問句： Should teenagers be allowed to drive the car ?Trees must be watered every day.4.They must water trees every day.一般問句： Must trees be watered every day?1. Sixteen-year-olds should be allowed to drive.(改為否定句)Sixteen-year-olds shouldn’t be allowed to drive.2. I think the work should be done at once.(改為否定句)I don’t think the work should be done at once.?Teenagers should be allowed to choose their own clothes. 應(yīng)該允許青少年選擇他們自己的服裝。?Students should not be allowed to have part-time jobs. 不應(yīng)該允許學(xué)生們做兼職工作。?Can these books be taken out of the reading room? 可以把這些書帶出閱覽室嗎？?When must the work be finished? 這些工作必須什么時候完成？ 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.3. Can Lucy do her homework tomorrow instead?Teenagers should be encouraged (by their parents) to do social work for their community.Can the homework be done (by Lucy) tomorrow instead?4a Rewrite the sentences according to the example.4. Do you think we must keep teenagers away from the Internet?5. Parents should give teenagers chances to make their own decisions.Do you think teenagers must be kept away from the Internet?Teenagers should be given chances to make their own decisions.The keys be askedare allowed4b Fill in the blanks with the correct forms of the words in brackets.be educatedstartmovetakecontinue4c You and your friend are starting an English Club.Make a list of rules about what should and should not be allowed.Sample Dialogue 1 A: Members should be allowed to use dictionaries. B: Yes, but they should only use English- English dictionaries.A: Members shouldn’t be allowed to speak Chinese.B: I agree. Only in this way can you improve your English.Sample Dialogue 2Ⅰ.按要求完成下列各句。 1. We must do the work right now. (改為被動語態(tài)) _____ ______ _____ _____ _______ right now. The work must be doneExercises2. Teenagers should be allowed to go out with their friends on school nights. (改為否定句 )Teenagers _______ _______ _______ to go out with their friends on school nights. 3. A book should be read each month. (改為一般疑問句) _______ _______ _______ _______ _______ each month?shouldn’t be allowedShould a book be read4. 你可以稍后考試。 You can _______ _______ _______ later.5. 這項工作必須按時完成。 The work must _______ _______ on time. 6. 應(yīng)允許青少年培養(yǎng)自己的愛好。 Teenagers _______ _______ _______ to develop their own hobbies. take the testbe finishedshould be allowed1. Their work must ____________ (finish) by four o’clock. 2. Your homework should __________ (do) by yourself. 3. These books mustn’t __________ (take) out of the reading room.4. Should these food _________ (keep) dry?be finished be done be taken be kept II. 用所給詞的適當形式填空。Ⅲ. 句型轉(zhuǎn)換。1. You should make up the bed every day. (改為被動語態(tài)) The bed _______ _______ _______ up every day. 2. We can’t see stars in the day time. (改為被動語態(tài)) Stars _______ _______ _______ in the day time. 3. You must return the book on time. (改為被動語態(tài)的一般 疑問句形式) _______ the book _______ _______ on time? should be madecan’t be seenMustbe returned Ⅳ. 翻譯下列句子。1. 需要好好地教育青少年。_____________________________________2. 這輛小汽車不能修了。____________________________________3. 這封信必須現(xiàn)在寄出去嗎？____________________________________4. 會議應(yīng)該在哪舉行？_____________________________________Teenagers need to be educated well. This car can’t be repaired.Must this letter be posted now?Where should the meeting be held?Some people think trees ____ on Tree Planting Day only.A. should plant B. should be plantedC. should be plant D. should be plantingB中考鏈接樹應(yīng)該被種植，要用含情態(tài)動詞的被動語態(tài)should be done 。應(yīng)當允許青少年做出自己的決定。Teenagers should be allowed to ______ their own ___________.make decisions 做決定，make one’s decision。HomeworkReview the grammar.Do some exercises.Thank you!