被動語態(tài)被動語態(tài)The passive voiceA recorder is used in our English class every day. use for playoftenFootball is played all over the world.A camera is used for taking photos.rob yesterdaysend uplast yearA man-made satellite was sent up into space last year.A bank was robbed yesterday.must plantcover within a few years timeThe tree must be planted on the ground.The ground will be covered with trees in a few years time. send toright nowa talk give soonThey will be sent to the hospital right now.A talk will be given soon.digThe earth is being dug now.eat up alreadyThe food has been eaten 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)相同點(diǎn)):The tree must be planted on the ground. The ground will be covered with trees in a few 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)行者當(dāng)我們不知道誰是動作的執(zhí)行者, 或者或者沒有必要指出誰是動作的執(zhí)行者時沒有必要指出誰是動作的執(zhí)行者時, 或或者只需強(qiáng)調(diào)動作的承受者時者只需強(qiáng)調(diào)動作的承受者時, 要用被動要用被動語態(tài)語態(tài)。被動語態(tài)：被動語態(tài)：主語主語是動作的是動作的承受者承受者 。被動語態(tài)的構(gòu)成：被動語態(tài)的構(gòu)成：be +vt.p.p.Conclusion: (一一)一般現(xiàn)在時一般現(xiàn)在時 amis are + vt.p.p.一般過去時一般過去時 waswere +vt.p.p. 情態(tài)動詞情態(tài)動詞 aux.v. (mustcancouldmay+ be + vt.p.p.)現(xiàn)在進(jìn)行時現(xiàn)在進(jìn)行時 be(am、is、are)+being +vt.p.p.一般將來時一般將來時 will bebe going to be + vt.p.p.現(xiàn)在完成時現(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 many 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 composition must be handed in after class.主動語態(tài)如何改成被動語態(tài)？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。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)的主動語態(tài)的謂語動詞改成被動語態(tài)的謂語動詞。謂語動詞。dobe done3. 注意保持時態(tài)和人稱的一致。注意保持時態(tài)和人稱的一致。 Conclusion: (二二)4. 帶雙賓的謂語動詞有兩種改法。當(dāng)把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，謂語動詞后必直接賓語改成主語時，謂語動詞后必須加適當(dāng)?shù)慕樵~須加適當(dāng)?shù)慕樵~: to for. 如如: givebe given to 此類動詞還有此類動詞還有: pass show send 再如再如: buybe bought for 此類動詞還此類動詞還有有: make draw cook mend5. 一些動詞不定式在主動語態(tài)中省略一些動詞不定式在主動語態(tài)中省略to作賓語補(bǔ)足語作賓語補(bǔ)足語, 改成被動語態(tài)時改成被動語態(tài)時, to必必須還原須還原。 注注: 1. 不及物動詞（不及物動詞（vi.) 不用被動語態(tài)不用被動語態(tài)。如如:happen、take place 、appear、disappeare.g. A traffic accident _ (happen) just now.happened2. 連系動詞連系動詞(Link.v.)不用被動語態(tài)不用被動語態(tài)。如。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，當(dāng)此動詞表示事物的自然屬性的時候，不用被動語態(tài)不用被動語態(tài) 。 e.g. The pen _ (write) very fast. This kind of sweater _ (sell) well.soundswritessellsMultiple Choice:1. If the work _, you can go and play games. A. finished B. has finished C. will be finished D. is finished2. It was raining heavily outside, the children were made _ in the classroom. A. stay B. to stay C. staying D. stayedDB3. Kate _ the letter before her mother came into her bedroom. A. has written B. was written C. had written D. is writing4. To make our city more beautiful, rubbish _ into the river. A. neednt be thrown B. mustnt be thrown C. cant throw D. may not throwBC5. I like my bike. It _ very well. A. rides B. is riding C. is ridden D. has ridden6. 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 invitedAD7. Everyone who heard Mr. Greens story _ it. A. laughed at B. was laughed C. laughed D. was laughed at8. The children must _. A. look after B. be taken good care C. look the same D. be taken good care ofDA9. 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 _. A. is mending B. is being mended C. is mended D. is being mending BB 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 _ (take) by American children.were asked triedtaken4. This coat _ (wash) well. 5. Must the old people _ (speak) to politely? 6. Im often _ (警告）警告）not to copy others homework. 7. He couldnt explain why dinosaurs _ (消失消失). washesbe spokenwarneddisappeared8. Ill have my bike _ (修理修理) tomorrow. 9. Have you found your necklace _ (偷偷) last week? 10. The PRC was _ (成立成立) on October 1, 1949.mended/repairedstolenfoundedMake dialogues or short passages accroding to the following information(using the passive voice as much as possible)：what when where 1. dialogueTopic:2. passageTo make our school more 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, 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 places the trees wont be replaced（取代）（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）（應(yīng)負(fù)責(zé)、責(zé)備）for this? The answer is 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)（產(chǎn)品）品）right now. ( ) 1. Scientists are trying to bring _ to the deserts. A. food B. planes C. water D. animals( ) 2. The _ are important to protect the soil. A. rain B. trees C. land D. woodCB( ) 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 appearB( ) 4. The reason for the bad cycle(循環(huán)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 earthD A great deal of water is needed in large cities. Some cities pump(抽水）抽水）water from wells. Some cities g_ water from lakes or rivers n_. But some cities have to bring water from lakes or rivers many miles away. Complete the passage:etearbyWater 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(水壩水壩) are often b_ in a river to keep the water from flowing away.roughtoundentuiltThen a new lake is formed. The city knows how much water will be n_ and allows the extra(額外的額外的) 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.eedednuildingoneFill in the blanks with the verbs using right tenses and voices:1. Large numbers of plastic bags _ (use) in the supermarkets every day. 2. _ our country _(send) up another man-made satellite last year? 3. Must the old people _ (speak) to politely?are usedDidsendbe spoken4. Her grandma was still alive when he _(take) to the hospital. 5. English _ (speak) in many counties, but the Chinese _ (speak) their own language. 6. Three quarters of the worlds books _ (write) in English.was takenis spokenspeakare written7. This kind of sweater _ (sell) well. 8. _ Lesson 50 _ (teach) next week?sellsWillbe taught你們學(xué)校附近有一個大圖書館，館你們學(xué)校附近有一個大圖書館，館內(nèi)有各種各樣的書，請你將這個圖內(nèi)有各種各樣的書，請你將這個圖書館的要求向你的同學(xué)作一介紹，書館的要求向你的同學(xué)作一介紹，以便他們?nèi)ツ莾嚎磿鴷r能遵守規(guī)則。以便他們?nèi)ツ莾嚎磿鴷r能遵守規(guī)則。Writing:1. 不要把包帶進(jìn)圖書館。不要把包帶進(jìn)圖書館。2. 看書時保持安靜?？磿鴷r保持安靜。3. 一次可借四本書一次可借四本書, 不能將書轉(zhuǎn)借給別人不能將書轉(zhuǎn)借給別人, 要按時還書。要按時還書。4. 圖書館每天早晨圖書館每天早晨8:00開門開門, 必須在下午必須在下午6:00前離開圖書館。前離開圖書館。要求要求: 用英文寫一篇用英文寫一篇6080詞左右的短文。詞左右的短文。