主动语态如何改成被动语态？.ppt

外研版外研版 初三初三(上上)Module 4第一页，编辑于星期五：点 五十九分。Unit 3 Language in use第二页，编辑于星期五：点 五十九分。Language practicePaper and printing have been used for ages.The battery hasnt been changed for a couple of months.Has it been published yet?现在完成时的被动语态现在完成时的被动语态:have/has(not)been+过去分词过去分词第三页，编辑于星期五：点 五十九分。Information can be kept on CD-ROMs.Books could only be produced one at a time.Can books be replaced by computers?情态动词的被动语态情态动词的被动语态:情态动词情态动词(not)+be+过去分词过去分词第四页，编辑于星期五：点 五十九分。一般现在时一般现在时 amis are+动词的过动词的过去分词去分词一般过去时一般过去时 waswere+动词的过去分动词的过去分词词情态动词情态动词 aux.v.(mustcancouldmay +be+动词的过去分词动词的过去分词被动语态的构成：被动语态的构成：be+动词的过去分词动词的过去分词第六页，编辑于星期五：点 五十九分。现在进行时现在进行时 be(am、is、are)+being+动词的过去分词动词的过去分词一般将来时一般将来时 will bebe going to be+动词的过去分词动词的过去分词现在完成时现在完成时 havehas+been+动词动词的过去分词的过去分词第七页，编辑于星期五：点 五十九分。时态时态被动语态结构被动语态结构一般现在时一般现在时一般过去时一般过去时现在进行时现在进行时过去进行时过去进行时am/is/are+donewas/were+doneam/is/are being+donewas/were being+done第八页，编辑于星期五：点 五十九分。一般将来时一般将来时过去将来时过去将来时现在完成时现在完成时过去完成时过去完成时shall/will be+donewould be+donehave/has been+donehad been+done第九页，编辑于星期五：点 五十九分。如如:give be given to此类动词还有此类动词还有:pass show send再如再如:buybe bought for此类动词还此类动词还有有:make draw cook mend第十一页，编辑于星期五：点 五十九分。5.一些动词不定式在主动语态中省略一些动词不定式在主动语态中省略to作作宾语补足语宾语补足语,改成被动语态时改成被动语态时,to必须必须还原还原。注注:1.不及物动词（不及物动词（vi.)不用被动语态不用被动语态。如。如:happen、take place、appear、disappear第十二页，编辑于星期五：点 五十九分。1.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几种特殊结构几种特殊结构第十三页，编辑于星期五：点 五十九分。注意注意:see,watch,hear,notice,feel,make,listen to,look at等动词等动词/短语短语后作宾语补语的不定式都不带后作宾语补语的不定式都不带to；但改成被动语态后必须带但改成被动语态后必须带to。第十四页，编辑于星期五：点 五十九分。A recorder is used in our English class every day.Lets practice!recorderEnglish class第十五页，编辑于星期五：点 五十九分。use forOften playFootball is played all over the world.A camera is used for taking photos.第十六页，编辑于星期五：点 五十九分。rob yesterdaysend uplast yearA man-made satellite was sent up into space last year.A bank was robbed yesterday.第十七页，编辑于星期五：点 五十九分。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.第十八页，编辑于星期五：点 五十九分。send to right nowa tall give soonThey will be sent to the hospital right now.A talk will be given soon.第十九页，编辑于星期五：点 五十九分。digThe earth is being dug now.eat up alreadyThe food has been eaten up already.第二十页，编辑于星期五：点 五十九分。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)yet.How can I use my recorder.has been lefthasnt been chargedbe placed第二十一页，编辑于星期五：点 五十九分。4.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 downloaded第二十二页，编辑于星期五：点 五十九分。7.Has the computer _(repair)yet?I need to write my article with it.8.What have _(turn on)?The radio.been turned onbeen repaired第二十三页，编辑于星期五：点 五十九分。ExercisesComplete the quiz questions and choose the correct answer.1.Who/pyramids/build?2.Who were the pyramids built by?a)The Egyptians b)The Ancient Greeks c)The Romans 第二十四页，编辑于星期五：点 五十九分。2.What/use/to make paper since the 19th century?What was used to make paper since the 19th century?a)Wood b)Silk c)Cotton第二十五页，编辑于星期五：点 五十九分。3.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 London第二十六页，编辑于星期五：点 五十九分。4.where/the worlds oldest book printed on paper/discover?Where was the worlds oldest book printed on paper discovered?a)In India b)In Chinac)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 years第二十七页，编辑于星期五：点 五十九分。ExercisesMake questions and write answers.What/shouldnt/do/with paper?(waste)-What shouldnt be done with paper?-It shouldnt be wasted.1.what/can/use/to make paper?(many things)第二十八页，编辑于星期五：点 五十九分。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)第二十九页，编辑于星期五：点 五十九分。How has the place changed?Use these words:add,change,open,paint,put,turn on,take away,The windowThe capThe lightThe basketballThe sweaterThe paintingTwo chairsThe booksThe disheshave/has been第三十页，编辑于星期五：点 五十九分。ExercisesComplete the passage with the correct form of the words.From about 500 BC,pens _ for writing.The feathers of large birds_ and dried.The point of each feather was sharpened.call,clean,develop,introduce,invent,produce,spread,use,writewere usedwere cleaned第三十一页，编辑于星期五：点 五十九分。Then 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 point _ Only a few words could _,however,before the writer had to fill the pen with ink again.were writtenwas inventedwere produced第三十二页，编辑于星期五：点 五十九分。Many 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 the _ of the ballpoint pen.Even today,ballpoint pen,or Biros,as they _,are much less expensive,compared with the fountain pens.spreadwas developedare calledintroduction第三十三页，编辑于星期五：点 五十九分。ExercisesComplete the sentences with the phrases in the box.1.Could you imagine a digital image of Yao Ming on the wall _ a poster?rather thanby hand,for ages,from now on,I wonder,rather than 第三十四页，编辑于星期五：点 五十九分。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 wonder第三十五页，编辑于星期五：点 五十九分。Around 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 great improvement in technology.第三十六页，编辑于星期五：点 五十九分。Notes can be written on the e-book,new books can be easily downloaded from the Internet,and its muchEasier and quicker to search for passages.Whats More,a lot of paper will be saved.Nowadays,the most Advanced e-book is about 620g,18cm long,12cm wide and 2cm thick.第三十七页，编辑于星期五：点 五十九分。It looks like a real book.But the E-book is more expensive than paper books,so not many people can afford it.However,with the rapid progress of electronic technology,the e-book will become more convenient and cheaper.It is said that in the near future,there will be more e-books than paper books.第三十八页，编辑于星期五：点 五十九分。Module taskDiscuss how to improve inventions第三十九页，编辑于星期五：点 五十九分。