主動語態(tài)如何改成被動語態(tài)？

1、Unit 3 Language in use Language practicePaper and printing have been used for ages.The battery hasnt been changed for a couple of months.Has it been published yet?現(xiàn)在完成時的被動語態(tài)現(xiàn)在完成時的被動語態(tài): have/has (not) been +過去分詞過去分詞Information can be kept on CD-ROMs.Books could only be produced one at a time.Can book

2、s be replaced by computers?情態(tài)動詞的被動語態(tài)情態(tài)動詞的被動語態(tài): 情態(tài)動詞情態(tài)動詞(not)+ be +過去分詞過去分詞當(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 。Conclusion (一一)一般現(xiàn)在時一般現(xiàn)在時 amis are +動詞的過動詞的過去分詞去分詞一般過去時一般過去時 waswere +動詞的過去動詞的過去分詞分詞情態(tài)動詞情態(tài)

3、動詞 aux.v. (mustcancouldmay + be +動詞的過去分詞動詞的過去分詞被動語態(tài)的構(gòu)成：被動語態(tài)的構(gòu)成：be +動詞的過去分詞動詞的過去分詞現(xiàn)在進(jìn)行時現(xiàn)在進(jìn)行時 be(am、is、are)+being +動詞的過去分詞動詞的過去分詞一般將來時一般將來時 will bebe going to be +動詞的過去分詞動詞的過去分詞現(xiàn)在完成時現(xiàn)在完成時 havehas +been+動動詞的過去分詞詞的過去分詞時態(tài)時態(tài)被動語態(tài)結(jié)構(gòu)被動語態(tài)結(jié)構(gòu)一般現(xiàn)在時一般現(xiàn)在時一般過去時一般過去時現(xiàn)在進(jìn)行時現(xiàn)在進(jìn)行時過去進(jìn)行時過去進(jìn)行時am/is/are +donewas/were+doneam

4、/is/are being+ donewas/were being + done一般將來時一般將來時過去將來時過去將來時現(xiàn)在完成時現(xiàn)在完成時過去完成時過去完成時shall/will be+ donewould be+ donehave/has been+ donehad been+ done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)？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。 4. 帶雙賓的謂語動

5、詞有兩種改法。當(dāng)把直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，謂語動詞后必須加接賓語改成主語時，謂語動詞后必須加適當(dāng)?shù)慕樵~適當(dāng)?shù)慕樵~: to for.Conclusion (二二)如如: give be given to此類動詞還有此類動詞還有: pass show send再如再如: buybe bought for此類動詞此類動詞還有還有: 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

6、動語態(tài)不用被動語態(tài)。如如: happen、take place 、appear、disappear1. My uncle gave me a gift on my birthday. 2. We often hear him play the guitarI was given a gift on my birthday. A gift was given to me on my birthday.He is often heard to play the guitar幾種特殊結(jié)構(gòu)幾種特殊結(jié)構(gòu)注意注意: see, watch, hear, notice, feel, make, listen

7、to, look at等動詞等動詞/短語短語后作賓語補(bǔ)語的不定式都不帶后作賓語補(bǔ)語的不定式都不帶to；但改成被動語態(tài)后必須帶但改成被動語態(tài)后必須帶to。A recorder is used in our English class every day. Lets practice!recorderEnglish classuse forOften playFootball is played all over the world.A camera is used for taking photos.rob yesterdaysend uplast yearA man-made satellit

8、e was sent up into space last year.A bank was robbed yesterday.must plantcover within a few yearstimeThe tree must be planted on the ground.The ground will be covered with trees in a few years time. send to right nowa tall give soonThey will be sent to the hospital right now.A talk will be given soo

9、n.digThe earth is being dug now.eat up alreadyThe food has been eaten up already.ExercisesComplete the sentences with the correct form of the words.1. I think one day books may _ (place) completely.2. My bike _ (leave) at school, so I have to take the bus to school today.3. The battery _ (charge) ye

10、t. How can I use my recorder.has been lefthasnt been chargedbe placed4. Paper should not _ (throw) away.5. Books and other material can _ (borrow) from the library.6. Ive bought a second-hand MP3 playerand about 1,000 songs have _ (download) onto it!be borrowedbe thrownbeen downloaded7. Has the comp

11、uter _ (repair) yet? I need to write my article with it.8. What have _ (turn on)? The radio.been turned onbeen repairedExercisesComplete the quiz questions and choose the correct answer. Who/ pyramids/ build? Who were the pyramids built by? a) The Egyptians b) The Ancient Greeks c) The Romans 2. Wha

12、t/ use/ to make paper since the 19th century? What was used to make paper since the 19th century? a) Wood b) Silk c) Cotton3. Where/ the story of Romeo and Juliet / set? Where was the story of Romeo and Juliet set? a) In New York b) In Athens c) In London4. where/ the worlds oldest book printed on p

13、aper/ discover? Where was the worlds oldest book printed on paper discovered? a) In India b) In China c) In Egypt5. How long/ computers/ use? How long have computers been used? a) For less than 50 years. b) For 50 years c) For more than 50 yearsExercisesMake questions and write answers.What/ shouldn

14、t /do/with paper? (waste)-What shouldnt be done with paper?-It shouldnt be wasted.1. what/can/use/to make paper? (many things)2. What/ might/use/to replace books one day? (computers)3. how/must/printers/keep? (in good conditions)4. Where/can/music/keep? (on MP3 players)How has the place changed?Use

15、these words:add, change, open, paint,put, turn on, take away,The windowThe capThe lightThe basketballThe sweaterThe paintingTwo chairsThe booksThe disheshave/has beenExercisesComplete the passage with the correct form of the words.From about 500 BC, pens _ for writing. The feathers of large birds_ a

16、nd dried. The point of each feather was sharpened. call, clean, develop, introduce, invent, produce, spread, use, writewere usedwere cleanedThen people used them to write with ink. Many famous works, such as Shakespeares plays, _ with these pens. Then in the 18th century, A pen with a steel writing

17、point _ Only a few words could _, however, before the writer had to fill the pen with ink again.were writtenwas inventedwere producedMany years later, the fountain pen _ from these early pens.In 1950, a European called Laszlo Biro invented the ballpoint pen. The popularity of writing _ quickly with

18、the _ of the ballpoint pen. Even today, ballpoint pen, or Biros, as they _, are much less expensive, compared with the fountain pens.spreadwas developedare calledintroductionExercisesComplete the sentences with the phrases in the box.1. Could you imagine a digital image of Yao Ming on the wall _ a p

19、oster? rather thanby hand, for ages, from now on, I wonder, rather than 2. Things made _ are usually more expensive than those produced in factories.3. _ how old books are actually downloaded onto computers4. I havent seen my best friend _!5. Were using too much paper. _, Im going to read all my magazines online.by handfrom now onfor agesI wonderAround the worldE-bookAs we can send mail by email, we can read books by e-book now. E-books first appeared in the 1990s and have made