目的状语从句中的情态动词及其选用

1.  He opened the window so that he might get some fresh air. (目的)

2.  My father got up so early that he would have enough time to pack.(结果)

3.  He came in quietly in order that he shouldn’t wake his wife.(目的)

几个需要说明和记住的问题:

1. 情态动词一般都表示“推测”意义。

2. 网友的第2 句表示结果。这说明,在结果从句中,同样可以使用情态动词(would)。又如:

It was dark, so that we could see nothing in front of us.

天很黑,所以我们看不见前面的任何东西。

3. so that...除了表示目的,也可以表示结果,见上句。

4. 至于选用哪个情态动词,需根据句意判断。should 一般表示“虚拟语气”。

5. 引导目的状语从句时,从句中往往含有一些像can/could/may/might/will/would/should 等情态动词;而结果状语从句中,类似的情态动词则很少出现。

6. 常用来引导目的状语从句的连词或词组有:so, so that, in order that, for fear that,in case (that),for the purpose that,lest 等。

7. 常用来引导结果状语从句的连词或词组有:that,  so,  so that,  so...that..., such...that...等。

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