条件状语从句 条件状语从句讲解

条件状语从句 条件状语从句讲解，英语的句子类型与语文的句子类型是完全不同的，为此小编为大家搜集整理了条件状语从句 条件状语从句讲解。下面就由小编带大家具体了解一下，大家可以参考一下。

一、条件状语从句讲义

定义：由引导词if, as long as,或unless等引导的状语从句叫做条件状语从句。

连接词：引导条件状语从句的连词有if(如果)，unless(除非;如果不)，supposing(假设)，as long as(只要)，on condition that(条件是)，in case(以防)，But for(要不是)。

原则：主将从现(根据句子意思来可用可不用)

位置：可以前后互换

应用: 三四开(三大词汇四大短语)

二、几大应用

一、I will come to see you if I have time.

If the rain stops, I shall go out for a walk.

If I were you, I would go with him.

If it doesn’t rain tomorrow, we will go to the zoo.

If you open the door，I will come in

If you fail in the exam, you will let him down.

二、You will fail to arrive there in time unless you start earlier.

You can't learn English well unless you study hard.

三、You can use my bike on condition that you return it by Friday.

I can tell you the truth on condition that you promise to keep a secret.

四、Take your umbrella in case it rains.

五、You may borrow my book as long as you keep it clean.

六、But for the rain, we should have a pleasant journey.

But for your help, I should not have finished my homework in time.

七、Supposing it rains, shall we continue the sports meeting?

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