英语语法求教I don't know how to do it=I don't know what to do. 是吗?

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/05/24 13:16:55

英语语法求教
I don't know how to do it=I don't know what to do. 是吗?
how to do it, what to do 跟在动词后面做什么成分?
how to do it 这里面it 做什么成分呢? 麻烦分析下他们谢谢

1.两者并不相等.
I don't know how to do it.我不知道该怎样去做它（这件事情）.
I don't know what to do.我不知道该做什么.
2.how to do it和what to do都是所谓的“疑问词 + 不定式”结构.
该结构在功能/意义上是一个名词（短语）,一般做句子的主语/宾语/表语,其实也就是名词在句中常做的成分.
3.如果是“疑问代词 + 不定式”如what to do,则疑问代词会充当不定式中某个动词或介词的宾语.
如what to do中,what充当do的宾语.
再如：I don't know whom to talk with.我不知道该和谁谈话.
其中whom充当talk with中介词with的宾语.
4.如果是“疑问副词 + 不定式”如how to do it,则疑问副词会充当不定式短语的状语.
如how to do it中,how充当do it的方式状语.
再如：I don't know when to go there.我不知道该什么时候去那里.
其中when充当go there的时间状语.
5.“疑问词 + 不定式”结构在英语中是比较常见常考的用法,希望楼主可以网上搜索或查找语法书,进行进一步学习.

I don't know "What to do 和 I don't know "How to do it"?哪个句子是 I don't know what to do i don't know ()to do.填what还是how I really don't know -----with it.A .what to do B.how to do 选 i don't know how to do it句型转换找错----Sorry,I don't know what to do it 改错：I don't know what to do it. I don’t know what to do.I don’t know how to do.（ × ）第二句 how I don't know ( ).A.what to do it B.how to do it C.what to do 为什么I don't know what to do成立而I don't know how to do不成立 i don"t know what to do (next) 和i don"t know how to do (next 正常译法是i don't know what to do ,为什么不能用i don't know how to do