高考英語一輪復(fù)習(xí)（語法）—名詞性從句 高考英語一輪復(fù)習(xí)（語法）—名詞性從句

　　在復(fù)合句中充當(dāng)主語的從句。

　　1.that引導(dǎo)主語從句

　　that引導(dǎo)主語從句時不同于其他的連詞，既無詞義也不作成分，只起單純的連接作用，且通常不可以省。為了強調(diào)that引導(dǎo)的主語從句而置之于句首時，that不可省。

　　①That the driver could not control his car was obvious.

　?、赥hat she was chosen made us very happy.

　?、跿hat he will come is certain.

　　④That he would take the risk is true.

　?、軹hat he should have married her isn't surprising.

　　★通常，that引導(dǎo)主語從句時用it做形式主語，把從句置于句尾，此時that有時可省。例如：

　?、買t was obvious that the driver could not control his car.

　?、贗t made us very happy that she was chosen.

　?、跧t is certain that he will come.

　?、躀t is true that he would take the risk.

　　⑤It isn't surprising (that) he should have married