We can't laugh at him.改为被动语态是He can't be laugh at by us.

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/05/17 22:00:33

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!

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"

We can't laugh at him.改为被动语态是He can't be laugh at by us. 被动语态 by 后面做什么语We can’t laugh him.→He can’t be laugh by us.by Hao yang doesn’t laugh at the beggar.改为被动语态 You can't laugh at sb Beacuse you can't make a living by you If you can't laugh at yourself,then who can you laugh at? You mustn't laugh at others 改为被动句 laugh at的被动语态介词填空 don 't laugh at him when he is Don't ____ at him.Everyone can make mistakes.A.laugh B.good His funny story made us laugh.改为被动语态 We were made by his fun Don't laugh at( We can't understand----at poor little matchgirl.A.they laugh