Unit3Grammar-辽宁省沈阳市牛津深圳版八年级英语下册课件(共13张PPT)

Unit3GrammarThepassivevoice

初中英语八年级

ReviewHello，IamWangDamin.MyfellowscallmeDamin.Cormorantsareatypeofbird.Theyswimverywell.不及物动词及物动词动词Myfellowscall

meDamin.Theyswimverywell.后面必须跟宾语意义才完整的实义动词，叫做及物动词。本身意义完整后面不须跟宾语的实义动词，叫做不及物动词。

ReviewDaminusescormorantstocatchfish.Cormorantsarelargeblackbirds.Theyaregoodatcatchingfishbecausetheycanswimwell.Theycandivedownandstayunderthewaterforuptotwominutes.被动语态主动语态语态Damin

usecormorantstocatchfish.CormorantsareusedtocatchfishbyDamin.catchfish主动语态表示主语是动作的执行者。被动语态表示主语是动作的承受者。Thepassivevoiceinthesimplepresenttenseinthesimplepasttenseinthesimplefuturetense被动语态的构成：主变被解题步骤:1.先确定主动句的主、谓、宾，找出其中的谓语动词;2.把主动句中谓语动词后面的宾语变为被动句中的主语;3.把主动句中的谓语动词变为“be+及物动词的过去分词”但时态不能改变。

Review4.把主动句中谓语动词前面的主语变为被动句中介词by的宾语5.主动句中的其他成分，如地点状语、时间状语等，保持不变规则动词一般情况下直接加ed，e.g.use-used;call-called不规则动词

过去分词以不发音字母e结尾的动词加-d，e.g.change-changed;live-lived以“辅音字母+y”结尾的动词，先变y为i，再加-ed，e.g.study-studied;carry-carried以重读闭音节结尾，且末尾只有一个辅音字母的动词，双写此辅音字母再加-ed，e.g.stop-stopped;plan-plannedA-A-A型：cut-cut-cut;read-read-readA-B-B型：catch-caught-caught;find-found-foundA-B-C型：give-gave-given;do-did-done

Iwatermyflowerseveryday.主语谓语动词宾语by

meeveryday.主动语态被动语态Myflowersarewatered

宾语变主语be+过去分词主语变为by…用于一般现在时的被动语态构成：时间状语主语谓语动词宾语by

themlastterm.主动语态被动语态were

bought

宾语变主语be+过去分词主语变为by…用于一般过去时的被动语态构成：时间状语Theywillfinishtheworkintendays.主语谓语动词宾语by

themintendays.主动语态被动语态Theworkwillbefinished宾语变主语