We can't laugh at him.改为被动语态是He can't be laugh at by us.而另一句:He listens to the radio every day.改为被动语态是The radio is listened to by him every day. 这两句被动语态中为什么第一句中用“be”+动词

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We can't laugh at him.改为被动语态是He can't be laugh at by us.而另一句:He listens to the radio every day.改为被动语态是The radio is listened to by him every day.   这两句被动语态中为什么第一句中用“be”+动词

We can't laugh at him.改为被动语态是He can't be laugh at by us.而另一句:He listens to the radio every day.改为被动语态是The radio is listened to by him every day. 这两句被动语态中为什么第一句中用“be”+动词
We can't laugh at him.改为被动语态是He can't be laugh at by us.
而另一句:He listens to the radio every day.改为被动语态是The radio is listened to by him every day. 这两句被动语态中为什么第一句中用“be”+动词过去分词,而第二句中用“is”+动词过去分词呢? 谢谢!

We can't laugh at him.改为被动语态是He can't be laugh at by us.而另一句:He listens to the radio every day.改为被动语态是The radio is listened to by him every day. 这两句被动语态中为什么第一句中用“be”+动词
因为第一句中的“can“是情态动词,情态动词后面要加动词原形,第一句中的被动语态是由“be+动词过去分词”构成的,由于“be"在情态动词“can"后面,所以要用原形“be"
第二句中的被动语态也是“be+动词过去分词" 但由于第二句中不存在情态动词,只是简单的现在时态,所以句中的"be"根据主语“the radio(第三人称单数)”进行配合就变成了“is" ,所以第二句中的被动语态就变成了"is+动词过去分词"

第一句是有情态动词的被动语态 构成是 情态动词+be +动词过去分词
第二句是一般现在时的被动语态 构成是 am is are +动词的过去分词
被动语态你只记住 be+动词的过去分词 各个时态的被动语态就在be动词上做变化 然后直接加过去分词就行了...

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第一句是有情态动词的被动语态 构成是 情态动词+be +动词过去分词
第二句是一般现在时的被动语态 构成是 am is are +动词的过去分词
被动语态你只记住 be+动词的过去分词 各个时态的被动语态就在be动词上做变化 然后直接加过去分词就行了

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因为被动语态规则就是 be+过去分词
第一句can't 不是be动词,所以要加个be
第二句已经有be动词is了

can是情态动词,后接动词原形;he是第三人称单数,要变形式的。

因为can情态动词

be 只是系动词
前一句CAN'T为情态动词,要加系动词原形即be
后一句主谓要一致

因为第一句里有can`t,情态动词后系动词要改为be

两个句子用的动词不一样
第一句用情态动词,后面加动词原形
第二句用一般现在时,用与主语对应的be动词

If you can't laugh at yourself,then who can you laugh at? We can't understand----at poor little matchgirl.A.they laugh B.their laughing C.them to laughD.them why laugh 选哪个,为什么 We don't come to laugh at you.翻译. 英语翻译: At hi-fi chain Richer Sounds'we have a laugh',says founder Julian Richer. 英语句子、、能帮忙变成被动语态吗?1.He often gives us presents.2.We should teach boys how to get on well with others.3.Students often laugh at hi.4.You can invite him to the party. We can't understand him because hi p____is too bad please don't _____ (laugh) at me if i can't do it well. we can't see ( )sun at ( ) night. We shouldn't laugh at those people who are in trouble的中文意思是什么 We shouldn't laugh at those people who are in trouble.翻译下 高一英语,请解答.She can't stand _____(laugh) at.详细 该错 They can't help laugh at my silly jokes We can't laugh at him.改为被动语态是He can't be laugh at by us.而另一句:He listens to the radio every day.改为被动语态是The radio is listened to by him every day. 这两句被动语态中为什么第一句中用“be”+动词 You can't laugh at sb Beacuse you can't make a living by yourself什么意思 被动语态 by 后面做什么语We can’t laugh him.→He can’t be laugh by us.by us 是什么成分?随意找三句被动语态We can’t laugh him.→He can’t be laugh by us.He listens to the radio every day.→The radio is listened to to by 英语翻译At hi-fi chain Richer Sounds'we have a laugh',says founder Julian Richer.They also sell more per square foot than any other retailer in Britain. don't laugh at others,反义疑问句 Don'T Laugh At Me 歌词