what其他用法：
1、what +主語(yǔ)+不及物動(dòng)詞/系動(dòng)詞+介詞
例句：The judge does not consider what each eyewitness looks like.
解析：what each eyewitness looks like是賓語(yǔ)從句，what在從句中作介詞like的賓語(yǔ)。
2、What+主語(yǔ)+及物動(dòng)詞
例句：What he says is reasonable.
解析：What he says是主語(yǔ)從句，what 在主語(yǔ)從句中作賓語(yǔ)。
例句：It is none of your business what other people think about you. Believe yourself.
解析：本句意為“別人怎么看你，與你無(wú)關(guān)，相信你自己。”其中It是形式主語(yǔ)，真正的主語(yǔ)是what other people think about you.