表語(yǔ)從句在復(fù)合句中作表語(yǔ)的名詞性從句，放在系動(dòng)詞之后，一般結(jié)構(gòu)是“主語(yǔ)+連系動(dòng)詞+表語(yǔ)從句”�？梢越颖碚Z(yǔ)從句的連系動(dòng)詞有be, look, remain, seem等。引導(dǎo)表語(yǔ)從句的that�？墒÷浴Ａ硗�，常用的還有the reason is that… 和It is because 等結(jié)構(gòu)。例如：
1) The question is whether we can make good preparation in such ashort time.
2) This is why we can’t get the support of the people.
3) But the fact remains that we are behind the other classes.
4) The reason he is late for school is that he missed the early bus.