一般过去时被动语态讲解学习.ppt

一般过去时被动语态The Passive Voicemade by Achilles（Mr.Peng）Teaching aims:1、了解并掌握一般过去时被动语态的肯定句、否定句以及一般疑问句的结构2、能从主动语态变为被动语态3、能熟练运用一般现在时和一般过时的被动语态自学任务（课本134-135）一般过去时被动语态的三种句式结构一般过去时被动语态的三种句式结构肯定句：主语+was/were+动词的过去分词（+by+动作执行者）否定句：主语+was/were+not+动词的过去分词（+by+动作执行者）一般疑问句：Was/Were+主语+动词的过去分词（+by+动作执行者）2.I bought a computer last term A computer was bought (by me)last term.The light was invented by him.inventHeinventedthelight.Jim rode the motorbike to his factory yesterday.The motorbike was ridden to his factory yesterday.They had an evening party last week.An evening party was had last week.The Great Wall was built by Chinese people many years ago.ChinesepeoplebuilttheGreatWallmanyyearsago.Thestudentsplantedmanytreesyesterday.Manytreeswereplantedbythestudentsyesterday.1.People use knives for cutting things.Knives _ _ for cutting things.2.The students clean the windows of their classroom twice a month.The windows of their classroom_ _ twice a month.are usedarecleaned(变被动语态）变被动语态）七嘴八舌3.I found the ticket on the floor._ _ _ _ on the floor.4.I told her to return the book in time.She _ _ to return the book in time.The ticket was found was told3.We found the ticket on the floor.5.Last year we built a library in ourschool.A library _ _ in our school last year.was built6.Did you plant many trees at this time last year?_ _ _ _ at this time last time?Were many trees planted7.The teacher asked Tom to turn on the computer.Tom _ _ to turn on the computer.8.In this factory women do most of the work.Most of the work _ _ by women in this factory.was asked is doneHave a try1.Sheinventedteabyaccident.2.Theydontwashtheirclotheseveryday.3.Theboybrokethedooroftheclass.Teawasinventedbyherbyaccident.Theirclothesarentwashedbythemeveryday.Thedooroftheclasswasbrokenbytheboy.4.Wedidntsolvetheproblem.5.DidMaryfinishthework?Theproblemwasntsolvedbyus.WastheworkfinishedbyMary?Fill in the blanks:Paper(invent)_ in A.D.105 by Cai Lun in China.It is an important part of our everyday lives,but few people ever think about how it(make)_.Today most paper comes from trees.However,with the concern for the environment(考虑到环境考虑到环境),more and more paper(produce)_from recycled paper products.Since paper products are of different qualities,they first(sort分类分类)_before they(recycle)_.The sorted material(put)_into a huge machine.was invented is made is produced are sorted are recycled is put结束语结束语谢谢大家聆听！谢谢大家聆听！23