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时间:2020-06-02
《初中英语语法被动语态讲解 课件(共29张).ppt》由会员上传分享,免费在线阅读,更多相关内容在PPT专区-天天文库。
1、Passivevoice被动语态2,各类动词被动语态结构3,不使用被动语态情况1,各种时态的被动语态结构:结构:be+动词的过去分词意义:强调主语是动作的承受者Theglasswasbrokenbytheboy.变化:示例Theboybroketheglass.Theglasswasbrokenbytheboy.从主动语态变为被动语态1.主语2.谓语3.宾语介词by+宾语加be,并变为过去分词主语1.Theymakeshoesinthatfactory.主语+及物动词+宾语Shoesaremade(
2、bythem)inthatfactory.一般现在时:S(主语)+am/is/are+过去分词变为被动语态2.Theyboughttencomputerslastterm.Tencomputerswerebought(bythem)lastterm.一般过去时:S+was/were+过去分词Tomwillcleantheroomtomorrow.主谓宾(受动者)TheroomwillbecleanedbyTomtomorrow.一般将来时;willbe+动词的过去分词5.Someworkersare
3、paintingtheroomsnow.Theroomsarebeingpaintedbysomeworkersnow.现在进行时:S+am/is/are+being+过去分词7.Iwasdoingmyhomeworkat8:00lastnight.Myhomeworkwasbeingdone(byme)at8:00lastnight.过去进行时:S+was/were+being+过去分词6.Wehavemadetwentymorekeys.Twentymorekeyshavebeenmadebyu
4、s.现在完成时:S+have/has+been+过去分词二、常见语态转换1.Lucyboughtsomefruit.Somefruit________________Lucy.2.UncleWangwaterstheflowerseveryday.Theflowers______________UncleWangeveryday.3.Didtheybuildthebridgein1998?____thebridge_____in1998?4.WhendidLuXunwritethesebooks?W
5、hen_____thesebooks___________LuXun?5.Thefarmersdon’tgrowapplesonthefarm.Apples__________onthefarm.6.Theydidn’tcleantheclassroomyesterday.Theclassroom_______________yesterday.wasboughtbyarewateredbyWasbuiltwerewrittenbyaren’tgrownwasn’tcleaned小结:1、被动语态的
6、转换,确定_____是关键,_______永不变。2、Be的时态由_______________确定;be的单/复数由____________确定。3、问句提前__________;否定________后加not.be形过去分词主动时态被动主语be动词be(二)1,情态动词的被动语态。1.Youcandotheworkallbyyourself.Thework_______________allbyyourself.2.Wemustplantmoretrees.Moretrees__________
7、________.3.Canweputourbikeshere?_____ourbikes_________here?4.Youcan’tlendthebooktoothers.Thebook___________toothers.小结:1.含情态动词的被动结构:______________________.2.疑问句提前_____________;否定句:___________+not.canbedonemustbeplantedCanbeput情态动词+be+过去分词情态动词情态动词1.Weca
8、llMr.SmithalivingLeiFeng.Mr.Smith_________alivingLeiFeng(byus).2.Tom’sfatherboughthimabook.He_____________abook(byhisfather)Abook_________him(byhisfather)2,双宾语的句子1)人作为被动句的主语2)物作为主语时,加to,forwasboughtiscalledwasboughttopass,show,send…此类动词
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