书上说系动词(感官动词)无被动形式那为什么see,hear,watch有?sound有吗?

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/04 02:43:45

书上说系动词(感官动词)无被动形式那为什么see,hear,watch有?sound有吗?
书上说系动词(感官动词)无被动形式那为什么see,hear,watch有?sound有吗?

书上说系动词(感官动词)无被动形式那为什么see,hear,watch有?sound有吗?
see、hear、watch是有被动形式的,对应的联系动词look、sound则没有,联系动词后面必须跟表语,而see、hear、watch是及物动词,必须带上宾语,它在主动结构中,后面可以再带一个动词,这个动词可以用不定式(不带to的),也可以用过去分词、现在分词.在被动结构中,它们后面同样可以用不定式或分词的结构,但是,如果用动词不定式的时候,这个动词不定式一定要带上to,比如:
I heard my mother humming a tune.
My mother was heard humming a tune by me.
He heard his dog bark at a cat.
His dog was heard to bark at a cat.
Somebody saw a man fall into a river.
A man was seen to fall into a river.
希望我能帮助你解疑释惑.