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语法考点荟萃--名词性从句(二)

来源:教师招聘网  时间:2021-02-22 18:04:20

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1.表语从句

在复合句中作表语的名词性从句,放在系动词之后,一般结构是“主语+系动词+表语从句”。可以接表语从句的系动词有be,look,remain,seem等。

(1)引导表语从句的连接词

连接词:that,whether(if不引导表语从句),as if

The trouble is that she has lost his money.

The question is whether we really need their help.

It looked as if it was going to snow.

连接代词:what,who,whom,which,whoever,whomever,whichever,whatever等

The question is which of us should go.

The problem was who could do the work.

That’s what he is worrying about.

That’s what we should do.

连接副词:when,where,why,how,however,whenever,wherever

Go and get your coat. It's where you left it.

That is how mice ruin many stores of grain every year.

(2)表语从句其他常见结构

①The reason is that…

The reason why he is late for school is that he missed the early bus.

②That is because …

That’s because we never thought of it.

③That is why…

That is why I cannot agree.

④It seems / looks as if

It seems as if he didn't know the answer.

2.同位语从句

(1)一般跟在某些名词后面,用以说明该名词表示的具体内容。例:

I heard the news that our team had won.

I had no idea that you were here.

(2)常见的可以跟同位语从句的词(抽象名词):

news,idea,fact,promise,question,doubt,thought,hope,message,suggestion,word (消息),possibility等。例:

I’ve come from Mr. Wang with a message that he won’t be able to see you this afternoon.

(3)同位语从句与定语从句的区别

①同位语从句与前面的名词是同位关系,说明它前面名词的内容;属于名词性从句范畴。定语从句与前面的名词是修饰与被修饰关系,限定前面名词范围,属于形容词性从句范畴。

The news that I have passed the exam is true.

The news that he told me just now is true.

②引导同位语从句的that是连词,在从句中不充当任何成份,而引导定语从句的that是关系代词,除了起连接作用外,还在从句中充当主语、宾语或表语等。例:

The idea that computers can recognize human voices surprises many people.

The idea that he gave surprised many people.

【典型例题】

After _____ seemed an endless wait, it was his turn to enter the manager’s office.

A. that B. if

C. what D. there

【答案】C。解析:考查宾语从句。句意:好似无尽地等待之后,轮到他进经理办公室了。该空位于介词After之后,引导宾语从句,后面的从句缺主句,应用what。故选C。

 

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