have no idea后面可以接when,that,whether,where等吗?比如I have no idea when he was ill.

题目

have no idea后面可以接when,that,whether,where等吗?比如I have no idea when he was ill.

答案

have no idea后面可以接when,that,whether,where等吗?比如I have no idea when he was ill.可以吗?
答：可以.
析：have no idea意思上相当于don't know.只不过前者跟的叫同位语从句,后者跟的叫宾语从句.二个都属于名词性从句.
如：I have no idea when he was ill.我不知道他什么时候生的病.
I have no idea where he is.我不知道他现在在哪里.
I have no idea whether he will come back.我不知道他是不是会回来.
I had no idea that he was here.我原来不知道他在这里.
注意,不说I don't know that he is here.所以也不能说：I have no idea that he is here.
这是逻辑问题.