④非谓语动词后的宾语从句：

Realizing that it was just a difference in custom,the foreigner smiled and said nothing

On being asked whether he had had a good time in Australia, he answered “Terrible ”.

⑤关于形式宾语it

We must make it clear that anyone who breaks the law will be punished.

我们必须清楚任何违犯法律的人都将受到惩罚。

I find it necessary that we should ask him for his advice.我发现我们有必要征求他的意见。

5.名词性从句重难点

①在名词性从句中，疑问句要用陈述句的语序。例如：

▲Can you make sure ____the gold ring ?

A.where Alice had put B.where had Alice put

C.where Alice has put D.where has Alice put

▲You can't imagine __when they received these nice Christmas presents.

A.how they were excited B.how excited they were

C.how excited were they D.they were how excited

②动词 doubt 用在疑问句或否定句中，其后宾语从句常用 that 作连接词;用在肯定句中，连接词用 whether 或 if 皆可，而不用that。

Do you doubt that he will win ?

I don't doubt that your proposition is wrong .

He doubt whether I know it .

③ 否定转移问题。

▲将think, believe, suppose, expect, fancy, guess, imagine等动词后面跟宾语从句时否定转移

I don't think I know you.　我想我并不认识你。

I don' t believe he will come.　我相信他不回来。

We don't expect he will come tonight , will he ?

注意：若谓语动词为hope,宾语从句中的否定词不能转移。

I hope you weren't ill. 我想你没有生病吧。

▲将seem, appear 等后的从句的否定转移

It doesn't seem that they know where to go. 看来他们不知道往哪去。

It doesn't appear that we'll have a sunny day tomorrow. 看来我们明天不会碰上好天气。

④主谓一致问题。

What he wanted to see was an end to all the armies of the world.

What I bought were three English books.

⑤语气问题

▲在含有 suggest , order , demand , propose , command , request , insist, desire, require, advise 等表示要求、命令、建议、决定等意义的动词后，that从句常用“should+ 动词原形”的结构　I suggest we (should) set off at once. 我建议我们应该立刻出发。

▲在It is +过去分词+that的主语从句中 decided，demanded，desired，insisted，ordered，proposed，suggested，recommended，requested， required等。

It is desired that we(should)get everything ready this evening.

▲在表语从句或同位语从句中

The suggestion that the mayor (should) present the prizes was accepted by everyone.

▲在It is(was)+形容词+that从句中要用虚拟语气，即(should +)动词原形，表示建议或不满、惊奇等情绪。常用于此类的形容词有 essential，important，natural，necessary，possible，strange，等　It is necessary that a college student ____at least a foreign language.(上海1993)

A.masters B.should master C.mastered D.will master

⑥What引导名词从句的特殊含义:

▲What was once regarded as impossible has now become a reality.

(what为“所……的事”，相当于“the thing that…;all that…;everything that…”)

▲After ________ seemed a very long time，I opened my eye and found myself in bed.(M ET'93)　A.what B.when C.that D.which

(what相当于“the time that”，表示“……时间”)

▲He is not what he was a few years ago. Who is it that has made Fred what he is now?

(what表示“……的人”，相当于“the person that…”)

▲What is now the North Sahara Desert was once a civilized world.

(what表示“……的地方”，相当于“the place that…”)

▲Our income is now double what it was ten years ago

(what表示“……的数目”，相当于“the amount /number that…”)

⑦不可省略的连词：

▲介词后的连词不可省略

Before I came downstairs I had prepared myself very carefully for what I must say.

下楼之前，我已经把我要说的认真准备好了。

▲引导主语从句和同位语从句的连词不可省略

That she was chosen made us very happy.她被选上了，我们很高兴。

We heard the news that our team had won. 我们听到消息说我们队赢了。

▲宾语从句有多个that引导时，从第二个及其后面的that不能省略

I believe(that)you have done your best and that things will get better.

⑧比较：whether 与 if 均为“是否”的意思。但在下列情况下，whether 不能被if 取代：

▲whether 引导主语从句在句首

Whether she comes or not doesn’t concern me .她是否来与我无关。

▲引导表语从句

His first question was whether she had arrived yet. 他问第一个问题就是她来了没有。

▲引导同位语从句

Answer my question whether you are coming.回答我你是否来的问题。

▲whether 从句作介词宾语

I worry about whether I hurt her feeling .我担心是否伤了她的感情。

▲与or not连在一起

I don’t know whether or not he is going to Japan.我不知道他是否去日本。

大部分连接词引导的主语从句都可以置于句末，用it 充当形式主语。例如：

It is not important who will go. 谁去，这不重要。

It is still unknown which team will win the match. 到底谁赢呢，形势尚不明朗。

最后，希望精品小编整理的高中英语名词性从句知识点对您有所帮助，祝同学们学习进步。

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