英语公开课优质课件推选——英语被动语态.ppt
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1、Passive voice被动语态基本用法被动语态基本用法当句子的当句子的主语主语是动作的是动作的执行者执行者时,时,谓语的形式是谓语的形式是主动语态主动语态。当句子的。当句子的主语是动作的主语是动作的承受者承受者时,谓语要用时,谓语要用被动语态被动语态。被动语态由助动词被动语态由助动词be+过去分词过去分词构构成,时态通过成,时态通过be表现出来。表现出来。1.1.规则动词的过去分词:规则动词的过去分词:1)1)一般情况在动词原形后一般情况在动词原形后加加-ed-edwatch-watched2)2)以不发音以不发音e e结尾的加结尾的加-d-dpractice-practiced3)3)以
2、辅音加以辅音加y y结尾的,去结尾的,去y y变变i i加加-ed-edstudy-studied4)4)以重读闭音节结尾,末尾只有一个辅音字母,以重读闭音节结尾,末尾只有一个辅音字母, 先双写该辅音字母,再加先双写该辅音字母,再加-ed-edstop-stopped2.2.不规则动词的过去分词不规则动词的过去分词:amisarebeenhavehashaddodonewritewrittengogoneHis brother washes bowls every day.主主谓谓宾宾(受动者受动者)Bowls are washed by his brother every day.改为被动语
3、态n nThey play football on Sunday.n nLucy does the homework in the evening.n nThey often use computers in class.n nWe make these machines in China.n nPeople speak English as the first language in UK.Football is played by them on Sunday.The homework is done by Lucy in the evening.Computers are often u
4、sed by them in class.These machines are made by us in China.English is spoken as the first language in UK.你知道这些被动句的否定句和一般疑问句吗?你知道这些被动句的否定句和一般疑问句吗?1.They make shoes in that factory.主语主语+及物动词及物动词+宾语宾语Shoes are made (by them) in that factory.一般现在时:一般现在时:S(主语)主语)+am/is /are +过去分词过去分词He looked after the
5、little baby yesterday.主谓宾(受动者)The little baby was looked afterbyhim yesterday .n nThey built the tall building last year.n nHe took good care of his little brother yesterday.n nWe cleaned our classroom just now.n nThey used this room for resting.n nThey planted many trees years ago.The tall building
6、 was built by them last year.His little brother was taken good care of by him yesterday.Our classroom was cleaned by us just now.This room was used for resting by them.Many trees were planted by them years ago.2. They bought ten computers last term Ten computers were bought (by them) last term.一般过去时
7、:一般过去时:S+was/were +过去分词过去分词Tom will clean the room tomorrow.主主谓谓宾宾(受动者受动者)The room will be cleaned by Tom tomorrow.n nWe will have a sports meeting next week.n nChildren will take some photos on the playground tomorrow.n nThe headmaster will give a talk this afternoon.n nThe farmers will grow differ
8、ent kinds of vegetables next spring.n nUncle Wang will mend the TV set tomorrow. A sports meeting will be had by us next week.Some photos will be taken by children on the playground tomorrow.A talk will be given by the headmaster this afternoon.Different kinds of vegetables will be grown by the farm
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