1、被動語態(tài),The passive voice,A recorder is used in our English class every day.,use for,play,often,Football is played all over the world.,A camera is used for taking photos.,rob yesterday,send up,last year,A man-made satellite was sent up into space last year.,A bank was robbed yesterday.,must plant,cover

2、 with,in a few years time,The tree must be planted on the ground.,The ground will be covered with trees in a few years time.,send to,right now,a talk give soon,They will be sent to the hospital right now.,A talk will be given soon.,dig,The earth is being dug now.,eat up,already,The food has been eat

3、en up already.,Football is played all over the world. A camera is used for taking photos. A bank was robbed yesterday. A man-made satellite was sent up into space last year.,Look and find out the similarities (相同點(diǎn)):,The tree must be planted on the ground. The ground will be covered with trees in a f

4、ew years time. They will be sent to the hospital right now. A talk will be given soon. The earth is being dug now. The food has been eaten up already.,當(dāng)我們不知道誰是動作的執(zhí)行者, 或者沒有必要指出誰是動作的執(zhí)行者時, 或者只需強(qiáng)調(diào)動作的承受者時, 要用被動語態(tài)。 被動語態(tài)：主語是動作的承受者 。 被動語態(tài)的構(gòu)成：be +vt.p.p.,Conclusion: (一),一般現(xiàn)在時 amis are + vt.p.p. 一般過去時 waswere

5、 +vt.p.p. 情態(tài)動詞 aux.v. (mustcancouldmay+ be + vt.p.p.) 現(xiàn)在進(jìn)行時 be(am、is、are)+being +vt.p.p. 一般將來時 will bebe going to be + vt.p.p. 現(xiàn)在完成時 havehas +been+ vt.p.p.,Turn the following sentences into the passive voice:,1. Many people speak English. 2. He bought me a new bike yesterday. ,English is spoken by m

6、any people.,I was bought a new bike yesterday. A new bike was bought for me yesterday.,3. The boss made him do the heavy work in the old days. 4. Tom must hand in the composition after class. 5. The rain stopped. 6. The soup tastes delicious.,He was made to do the heavy work in the old days.,The com

7、position must be handed in after class.,主動語態(tài)如何改成被動語態(tài)？ 1. 主動語態(tài)的賓語改成被動語態(tài)的主語。 2. 主動語態(tài)的謂語動詞改成被動語態(tài)的謂語動詞。dobe done 3. 注意保持時態(tài)和人稱的一致。,Conclusion: (二),4. 帶雙賓的謂語動詞有兩種改法。當(dāng)把直接賓語改成主語時，謂語動詞后必須加適當(dāng)?shù)慕樵~: to for. 如: givebe given to 此類動詞還有: pass show send 再如: buybe bought for 此類動詞還有: make draw cook mend,5. 一些動詞不定式在主動語態(tài)

8、中省略to作賓語補(bǔ)足語, 改成被動語態(tài)時, to必須還原。 注: 1. 不及物動詞（vi.) 不用被動語態(tài)。如:happen、take place 、appear、disappear e.g. A traffic accident _ (happen) just now.,happened,2. 連系動詞(Link.v.)不用被動語態(tài)。如: be、look、seem、feel、sound、smell、taste、get、turn、become e.g. Peking Opera _ (sound) beautiful. 3. 當(dāng)此動詞表示事物的自然屬性的時候，不用被動語態(tài) 。 e.g. The

9、 pen _ (write) very fast. This kind of sweater _ (sell) well.,sounds,writes,sells,Multiple Choice:,1. If the work _, you can go and play games. A. finished B. has finished C. will be finished D. is finished 2. It was raining heavily outside, the children were made _ in the classroom. A. stay B. to s

10、tay C. staying D. stayed,D,B,3. Kate _ the letter before her mother came into her bedroom. A. has written B. was written C. had written D. is writing 4. To make our city more beautiful, rubbish _ into the river. A. neednt be thrown B. mustnt be thrown C. cant throw D. may not throw,B,C,5. I like my

11、bike. It _ very well. A. rides B. is riding C. is ridden D. has ridden 6. I wont come to the party unless Tom _, too. You mean if Tom comes, youll come. A. will invite B. invites C. invited D. is invited,A,D,7. Everyone who heard Mr. Greens story _ it. A. laughed at B. was laughed C. laughed D. was

12、laughed at 8. The children must _. A. look after B. be taken good care C. look the same D. be taken good care of,D,A,9. The woman still doesnt know what _ in her hometown while he was away. A. happens B. happened C. will happen D. was happened 10. I saw you were on foot this morning. Yes. My bike _.

13、 A. is mending B. is being mended C. is mended D. is being mending,B,B,Fill in the blanks using right forms:,1. All the students _ (ask) to bring a kite with them last Sunday. 2. Are many ways _ (try) to stop people from cutting down so many trees? 3. What are on show in the museum? Some photos _ (t

14、ake) by American children.,were asked,tried,taken,4. This coat _ (wash) well. 5. Must the old people _ (speak) to politely? 6. Im often _ (警告）not to copy others homework. 7. He couldnt explain why dinosaurs _ (消失).,washes,be spoken,warned,disappeared,8. Ill have my bike _ (修理) tomorrow. 9. Have you

15、found your necklace _ (偷) last week? 10. The PRC was _ (成立) on October 1, 1949.,mended/repaired,stolen,founded,Make dialogues or short passages accroding to the following information(using the passive voice as much as possible)：,what when where ,1. dialogue,Topic:,2. passage,To make our school more

16、beautiful, what things must /mustnt be done?,must: pick up throw collect plant grow ,mustnt: throw draw use spit cut down ,Reading comprehension:,Now scientists are trying to turn deserts into good land again. They want to bring water to the deserts, so people can live and grow food there. However,

17、more and more land is becoming the deserts. Why is this happening? There are two reasonsland and wood. In many places the trees have been cut down because the land was needed for people.,In other parts, the trees are cut down because their wood is wanted. But many people dont know that in most place

18、s the trees wont be replaced（取代）. The soil in the forests is very thin, but it is protected by the trees. When the trees are cut down, the soil is washed away by the rain or blown away by the wind. Soon nothing can grow on it. The land becomes a desert.,Who is to blame（應(yīng)負(fù)責(zé)、責(zé)備）for this? The answer is

19、 easy: all of us. There are just too many people in the world. The worlds population is now six billion. You might say: We dont cut down trees. Yes, but just look around. Youre probably using its products（產(chǎn)品）right now.,( ) 1. Scientists are trying to bring _ to the deserts. A. food B. planes C. wate

20、r D. animals ( ) 2. The _ are important to protect the soil. A. rain B. trees C. land D. wood,C,B,( ) 3. In most places after the trees are cut down, _. A. they can grow again B. they will disappear forever C. new trees can grow better D. new forests will appear,B,( ) 4. The reason for the bad cycle

21、(循環(huán)) is that _. A. people need more land to grow food B. wood is needed for building houses C. there are too many rich people on the land D. there are too many people on the earth,D,A great deal of water is needed in large cities. Some cities pump(抽水）water from wells. Some cities g_ water from lakes

22、 or rivers n_. But some cities have to bring water from lakes or rivers many miles away.,Complete the passage:,et,earby,Water is usually b_ to a city from a place higher than the city itself. When water is f_ only in the lower place, it must be pumped up to the city. Then it is s_ to each home. Dams

23、(水壩) are often b_ in a river to keep the water from flowing away.,rought,ound,ent,uilt,Then a new lake is formed. The city knows how much water will be n_ and allows the extra(額外的) water to flow below the dam. I _ this way, the city stores water for its use. There is usually a b_ near the dam. Much important work is d_ there. For example, the water is tasted before it is piped to the city.,eeded,n,uilding,one,Fill in the blanks with