that从句是什么

that从句是什么意思

that可以引导名词性从句、定语从句。that引导名词性从句时（即主语、宾语、表语、同位语从句），在从句中无具体含义，只起连接作用，而且在从句中也不作任何句子成分。

（即主语、宾语、表语、同位语从句）

在从句中无具体含义，只起连接作用，而且在从句中也不作任何句子成分。它所引导的从句的句子结构和意义是完整的，而且从句一般是陈述一个事实。

①That she was able to come made us very happy．她能来使我们很高兴。

当that引导的主语从句或宾语从句太长时，常用it作形式主语或宾语而把that从句放在后面。

如：①It is well—known that the earth is round．众所周知，地球是圆的。

that引导的主语从句，表语从句以及同位语中，that不能省略。

that引导的宾语从句，一般可以省去that，但在下面情况中不能省略。

1.在suggest,order等表示命令、请求、建议等动词后的宾语从句中，不能省。

2.由and或but所连接的两个引导的宾语从句时，之一个从句中的that可以省，第二个从句中的that不能省。

3.that引导的宾语从句，如果从句中还有其他状语从句，引导宾语从句的that不能省略。Tell him that if he is at home, I’ll call to see him.

2that引导定语从句要注意以下几点

1．定语从句中缺主语，修饰人时用who／that，修饰物时用which／that引导。如： Is this the factory which／that makes TV sets？The man who／that visited our school is from Australia．

2．从句中缺宾语，修饰人时用who／whom／that或省略引导词；修饰物时用which／that或省略引导词。如：Gone are the days which／that we spent together in the village．He is the man who／whom／that I think to be worthy of our praise.

英语:什么叫That从句

That可以引导定语从句、名词性从句、状语从句。

1、用作关系代词，引导定语从句。

The only thing that I can do is to have a rest.我唯一能做的事就是休息。

2、用作关联词，引导名词性从句。

That the earth turns around the sun is known to all.地球围着太阳转这一点是众所周知的。（引导主语从句）

It so happens that I know the man.碰巧我认识那人。（主语从句）

I will see to it that everything is ready.我会注意把一切准备妥当的。(宾语从句) The trouble is that we are short of money.困难就在于我们缺钱。（表语从句）

There is no doubt that he is the best choice for this position.无疑，他是这一职位的更佳人选。（同位语从句）

Bring it nearer so that I may see it better.拿近一点，好让我看清楚些。( so that引导目的状语从句)

She got up early, so that she caught the early bus.她起的早，所以赶上了早班车。( so that引导结果状语从句)

In order that everybody should hear him, he spoke loudly.他大声说话，为了使大家都能听得见。（in order that引导目的状语从句）

Now that they have taken matters into their hands the pace of events has quickened.他们既然已着手自己来处理问题，事态的进展也就加快了。（now that引导原因状语从句）

that在从句中的用法和表示什么

that可以引导名词性从句、定语从句,其具体用法如下：

一、that引导名词性从句时(即主语从句、宾语从句、表语从句、同位语从句),在从句中无具体含义,只起连接作用,而且在从句中也不作任何句子成分.它所引导的从句的句子结构和意义是完整的,而且从句一般是陈述一个事实.

①That she was able to come made us very happy.

②The news that our team has won the match is true.

我们队赢了这场比赛的消息是真的.

③The reason he didn't come was that he was ill.

当that引导的主语从句或宾语从句太长时,常用it作形式主语或宾语而把that从句放在后面.如:

①It is well—known that the earth is round.

②We find it necessary that we practise spoken English every day.

我们发现每天练习英语口语很有必要.

that引导的主语从句,表语从句以及同位语中,that不能省略.that引导的宾语从句,一般可以省去that,但在下面情况中不能省略——

1.在suggest,order等表示命令、请求、建议等动词后的宾语从句中,不能省；

2.由and或but所连接的两个引导的宾语从句时,之一个从句中的that可以省,第二个从句中的that不能省；

3.that引导的宾语从句,如果从句中还有其他状语从句,引导宾语从句的that不能省略.

Tell him that if he is at home,I'll call to see him.

二,that引导定语从句要注意以下几点:

1.定语从句中缺主语,修饰人时用who/that,修饰物时用which/that引导.如:

Is this the factory which/that makes TV sets

The man who/that visited our school is from Australia.

2.从句中缺宾语,修饰人时用 who/whom/that或省略引导词;修饰物时用which/that或省略引导词.如:

Gone are the days which/that we spent together in the village.

He is the man who/whom/that I think to be worthy of our praise.

①先行词前有形容词更高级或序数词修饰时,用 that不用which引导.如:

This is the best place that I have ever visited.

②先行词为little,much,all,none,few,(the)one,something,everything,nothing,anything等不定代词时,用that引导.如:

There is nothing in the world that can frighten him.

③先行词既有指人的名词又有指物的名词时,用 that引导.如:

He told us about the people and the cities that he had visited.

④先行词前有any,all,no,few,every,some,little,much,(the)very,(the)only,(the)last等词修饰时,用 that引导.如:

This is the very coat that I need.

⑤先行词为which时,为了避免重复,用that引导.如:

Which is the book that you bought yesterday

⑥先行词在从句中作表语时,常用that引导.如:

Shanghai is no longer the city that it used to be in the 1930's.

⑦当主句是There be...句型时,用that引导.

There are two tickets for the film that are for you two.