that引导名词性从句用法详解

that引导名词性从句用法详解

如何来掌握that引导的名词性从句呢？我认为应从以下几个方面掌握：

一．that 在名词性从句中，起连词的作用，在从句中不起语法功能，即不作任何成分，也不含有任何意义，引导名词性从句时，不可省略，故称：“三不”。

二．that引导名词性从句的特点

1.that引导同位语从句：

当that引导同位语从句时，that从句前常有名词，

1) The idea that england stands for fish & chips ,speaker’corner, big ben and the tower of london is past

2) The fact that great britain is made up of three countries is still unknown to many.

3) The suggestion that students should learn something practical is worth considering

与that 同位的名词常有下列名词：

news ，fact, hope, idea, suggestion, promise, thought, doubt, belief, truth, request, proposal, demand etc.

2. that 引导表语从句

当that引导表语从句时，常用下列句式：

it happens that….

it appears that….

it seems that….

it turns out that….

it proves that….

the reason is that…

1) It appears that he has gone mad。他好像是疯了。

2) It proves that his promise is wrong.。他的预言证明是错误的。

3) The reason is that he has not passed the exam. 原因是他考试没有及格。

4) It turns out that the situation is quite serious.形势结果是相当严重的。

3. that 引导主语从句

由连词引导的主语从句，在大多数情况下被放到句子的后面，用it 作形式主语来代替它的位置。常见的以it作形式主语的主语从句的句型有三种。

a.it + be + 形容词+that从句

适用于这种句型的常见形容词有：necessary，clear，true，strange，important，wonderful，possible，likely，abvious，surprising etc。

1) It’s clear that they badly need help。很明显，他们急需援助。

2) It is likely that a hurricane will arrive soon. 很可能飓风马上就要来了。

3) It’s possible that we can carry out the project at last. 最终我们能完成这项工程是有可能的。

*** necessary，clear，true，strange,important,wonderful，possible, likely, obvious, surprising, ashtonishing,etc.谓语动词的形式一般为“should ＋动词原形”

4) It is necessary that you (should)master the computer. 你很有必要掌握电脑。

5) It is important that a student learn english well. 学生学好英语很重要。

6) It is strange that he should have killed himself .真奇怪，他竟然自杀了

b. it +be +名词词组+ that从句

常用于这种句型的名词词组有：a fact，a good idea，a pity，an hour，a shame，no wonder，good news etc.

1) it’s a pity that you missed the film.你没有看那部电影真是太遗憾了。

2) ――tom has a bad cold. 汤姆患了重感冒。

――it is no wonder that he looks pale. ――难怪他看起来脸色苍白。

3) It it a great shame that he should have stolen a pen. 他竟然偷钢笔，真是太丢脸了。

shame 所用的句中要用虚拟语气。

c.it + be+ 过去分词+ that从句

常有的过去分词有：said，reported, hoped,belived, expected, decided, well-known, thought, suggested 等。

1) It is well-known that the earth moves around the sun.众所周知，地球围绕太阳转。

2) It’s reported that the two countries have made an agreement about their trades.

据报道这两个国家就贸易问题达成协议。

3) It’s said that the rocket has been sent off in the space successfully.

据说火箭已经成功地发射到宇宙中。

**过去分词表示：建议，命令，愿望如suggested ，ordered，requested等词时，从句需用虚拟语气。动词形式为：should ＋原型。

1) It is requested that mr.wang (should)give a performance.有人请求王先生表演一个节目。

2) It is suggested that we should discuss the problem .有人建议我们应该讨论一下这个问题。

4．that 引导宾语从句

a.哪些词后面常接that引导的宾语从句？

主句的谓语动词是say，think，tell，know，hear，see，feel，mean，hope，wish，remember，forget等时，或主句的谓语动词是由形容词afraid，glad，sure，sorry等作表语的系表结构时，后面常接that引导的宾语从句。例如：

He says that he wants to speak to the headmaster．他说他想和校长说话。

I think that we need to buy some meat for the party．我认为我们需要为聚会买些肉。

I'm sorry（that）he isn't here right now．对不起，此刻他不在。

b.从句的引导词that能省略吗？

that引导的宾语从句用来陈述事实，that本身无词义，在从句中不作任何成分，在口语中常常省略。例如：

I guess somebody else has borrowed it．我猜是别的人把它借走了。

I'm afraid you'll have to wait．恐怕你得等一下。

注意：从句前面有插入语时，引导词that不能省略；如果有两个并列的宾语从句，第二个从句的引导词that也不能省略。例如：

She may tell you，for example，that she is interested in Chinese．例如，她可能会告诉你，她对汉语感兴趣。

Mr Read said（that）he taught English in a middle schoolin Beijing and that he came from Australia．里德先生说他在北京的一所中学教英语，他来自澳大利亚。