一、表语从句的连接词

1.从属连词that引导的表语从句

The trouble is that I have lost his address.麻烦的是我把他的地址弄丢了。

The fact is that he doesn’t really try.事实是他没有做真正的努力。

2.从属连词whether引导的表语从句

The question is whether we can catch the early bus.问题在于我们是否能赶上早班车。

What they want to know is whether he is capable of holding that important post.

他们想知道的是他是否有能力保住那一重要职位。

3.连接代词和连接副词引导的表语从句

This is what we want.这正是我们所需要的。

The problem is who can complete the difficult task.问题是谁能完成这项困难的任务。

That is why she had a day off yesterday.这就是她昨天请一天假的原因。

The problem is where we should stay.问题是我们应该呆在哪里。

【提示】

①That’s because ...意为“这是因为……”，强调原因。

That’s because he didn’t understand me.那是因为他没有理解我。

②That’s why ...意为“这是为什么……”，强调结果。

That’s why he got angry with me.那正是他对我生气的原因。

③The reason （why ...）is that ...意为“原因是……”。

The reason why I got angry with me was that he didn’t understand me.

我难过的原因就是他不理解我。（why引导的定语从句）

4.从属连词as，as if/as though引导的表语从句

Things are not always as they seem to be.事物并不总是如其表象。

He looks as if/as though he’s tired.他好像累了。