必修3-unit5同位语从句

同位语从句

【教学内容】同位语从句

【教学目标】熟练掌握同位语从句

【教学重难点】引导词的使用、同位语从句与定语从句的区别

【教学过程】

* 什么是同位语从句：同位语从句是名词性从句中的一种，是用以解释说明某一名词内容和实质的从句，它所修饰的词称为先行词。同位语从句在主句中的作用等同于先行词的作用。

Eg:The news that we’ll go on a picnic this Sunday isn’t true.

这个星期天我们要去野餐的消息不是真的。

析：The fact就等于we’ll go on a picnic,是对the fact 的解释说明。

▼同位语从句常修饰的名词

不是所有的名词都可以跟同位语从句，可以被同位语从句修饰的多是含有抽象意义的名词。常用的有：

●advice 建议●belief 信念、相信●doubt怀疑

● explanation 解释● fear 害怕●fact事实

●hope 希望● idea想法、主意●news消息

●order 命令●opinion观点●possibility可能性

●promise 答应、诺言●problem问题●question问题

●report报道●reply答复●statement论断

●suggestion建议●thought想法●truth事实

●wish 愿望●warning 警告●word 消息

* 同位语从句的连接词的使用

►由that引导

Eg:①We heard the news that our team had won.我们听到我们队赢了。

②They were worried over the fact that you were sick.他们为你生病发愁。

③The news that we are having a holiday tomorrow is not true.明天放假的消息不实。

►在某些名词，例如suggestion,advice,request,order,demand,requirement等意为“建议，命令，要求”的名词后，同位语从句的谓语动词通常用“should+动词原形”的虚拟语气结构，句中should可以省略。Eg:①The suggestion that the new rule (should) be adopted came from the Chairman.

采纳新规则的建议是主席提出来的。

②They expressed the wish that she (should) accept the award.

他们表示希望她接受这笔奖金。

►由whether引导的同位语从句

Eg:①Answer my question whether he will come.你回答我的问题：你来不来。

②The question whether it is right or wrong depend on the result.这个是对还是错要看结果。

【注意】* whether 可引导同位语从句，但if不能引导同位语从句。

* 名词doubt“怀疑”后的同位语从句用whether连接；no doubt“不怀疑”后的同位语从句用that连接。如：

●We have some doubt whether they can complete the task on time.我们怀疑他们是否能准时完成任务。

●There is no doubt that Li Wei will keep his promise.毫无疑问，李伟会信守承诺的。

►由连接代词what,which,who,whom引导的同位语从句

Eg:①Have you any idea what time it starts你知道什么时候开始吗

②The question who should the work requires consideration.谁该干这项工作，这个问题需要考虑。

③I have no idea whom they are talking about.我不知道他们在谈论谁。

④I don’t know the question which pen is mine.我不知道哪支笔是我的。

►由连接副词when,where,why,how引导的同位语从句

Eg:①I have no idea when he will come.我不知道他什么时候回来。

②It is a question how he did it.问题是他怎么去做。

③He had no idea why she left.他不知道她为什么离开。

④I don’t know the question where the concert will be held.我不知道音乐会在哪里举行。

【随即随练】

一、用适当的连接词填空

1.But they forget the fact that they were not experienced.

2.I have no idea what is going on the day after tomorrow.

3.The question when/why/how/whether they will come back is very important.

4.The possibility that the majority of the labour force will work at home is a trend.

5.She asked me a question whether we will go swimming or not.

6.I do hope you can keep your promise that you will never be late again.

7.She asked me a question where the meeting will be held.

8.I don’t know the reason why he was late for school.

9.The fact that the transport of the goods costs too much was not discussed.

10.He put forward the question when they will be back.

11.I don’t know the question which bag is yours.

12.I have no idea who can finish the work.