河南专升本公共英语语法考点分析---名词从句

名词从句有四类：宾语从句、主语从句、表语从句、同位语从句。例如：
宾语从句：I don’t know where he will go.
主语从句：Where he will go is unknown.
表语从句：The problem is how we can get so much money.
同位语从句：We all feel sorry about the news that he failed in the game.

名词从句注意点

下面几点是学习名词从句要加以注意的：

1．whether和if都可以引导宾语从句表达“是否”意，（即引导宾语从句时if和whether可以互换）但以下几种名词从句要用whether（不用if）引导：

（1）引导主语从句，且在句首时。例：Whether he has won the tennis is not known.(但It is not known whether/if he has won the tennis).
（2）引导表语从句时。例The problem is whether he can get a job.
（3）引导同位语从句时。例：I have no idea whether he will come.
（4）介词后的whether从句。例：I worry about whether I hurt her feelings.

2．位于句首引导主语从句的that不可忘。

例如：That he got the first place in the competition surprised all of us.

3．在“It is suggested/proposed/ordered/a pity/no wonder/necessary/strange/…＋that从句”结构中，that从句谓语有时用（should）do这样的虚拟语气形式。

例如：It is suggested that we(should) improve the relations between us.
It is a pity that one(should) stay in one place all ones life.
It is strange that she should have failed to see her own shortcomings（缺点）.