除了if之外,是否还有其他的连词也可以引导条件状语从句呢? 回答是肯定的。由于这些词出现的频率较小,且用法较复杂一些,所以不如 if 为大家所熟知。

下面,小编就为大家就这些词的用法以例句的形式进行一下简单总结。

 

1、unless conj.除非,若不,除非在……的时候

The targets would not be achieved unless other departments showed equal commitment. 除非其他部门同样努力,否则这些目标无法达成。

Training is worthless unless there is proof that it works.  除非能证明训练有效,否则就是白搭。

 

2、on condition(that)...在……条件下,如果 on condition (that)...引导的条件从句是主句事件发生的前提条件或唯一条件。

He has been granted his freedom on condition that he leaves the country.  他已获准恢复自由,条件是他离开这个国家.

I will grant you pardon, on condition that you help me solve a terrible problem.  我愿意饶恕你,但是你要帮助我解决一个十分棘手的问题.

 

3、supposing conj.如果,假如 supposing引导的条件从句表示一种假设条件。

Supposing he's right and I do die tomorrow? Maybe I should take out an extra insurance policy.  假设他是对的,我确实明天就会死,那该怎么办?也许我应该再买一份保险。

Supposing by a freak the Tudsburys did show up in Honolulu?  没准儿突然之间塔茨伯利父女俩真的在檀香山出现了呢 ?

 

4、provided conj.假如,除非,以……为条件 provided (that) +从句表示一种假设条件。

Provided you didn't try to make sense of it, it sounded beautiful.  只要不非得弄懂它的意思,它听上去还是很美的。

He won't be against us in the meeting provided that we ask for his advice in advance.如果我们提前征求一下他的意见,他就不会在会上反对我们。

 

从上述例句可以看出 if, unless, on condition (that), supposing, provided 等词引导的条件状语从句,主从句条件关系分明,结构清晰。希望大家认真理解记忆~