关于what特殊疑问句中的谓语动词的问题

问题描述:

关于what特殊疑问句中的谓语动词的问题
be famous for,它是一个动词短语.
China is famous forXXX
一般疑问句是不是只用把be提前:is China famous forXXX,famous前还用不用加be?不是be famous for 吗?
还有特殊疑问句:what is China famous for?be famous for中的be是不是就变成了is?那么这个be的变化是否根据后面的主语进行变化?比如后面主语是he\she\it就用is ,you\we用are,i用am?
还是上面的例句,它是主谓宾还是主系表呢?

恩恩.be动词其实就是指am are is was were ...还有特殊疑问句:what is China famous for?be famous for中的be是不是就变成了is?那么这个be的变化是否根据后面的主语进行变化?比如后面主语是he\she\it就用is ,you\...