一、what引導的主語從句。
例句:
1。What caused the accident is not clear。
2。 What really matters is that she wore a pair of white shoes。
3。 What I need is money。
4。 What he says is not important。
5。 What I want to know is this。
二:that引導的表語從句。
例句:
1。One advantage of solar energy is that it will never run out。
2。What surprised me was that he spoke English so well。
3。My dream is that I want to be a scientist。
what引導主語從句的時候,What在從句裡做主語或賓語,主語從句是放在謂語動詞之前。that引導的表語從句要放在系動詞的後面。that不做成份,只起連線作用。例如,What he said really shocked us!這是what引導的一個主語從句。
The fact is that he told us a lie。這是that引導的的表語從句。