辨析: as soon as,unless 和 so……that - 读趣百科

辨析: as soon as,unless 和 so……that

1.unless 作连词,意为“除非;如果不”,引导条件状语从句。在含有 unless 引导的条件状语从句的主从复合句中,如果主句为一般将来时,从句用一般现在时表将来,即“主将从现”。unless 引导的条件状语从句通常可以与 if… not 结构互相转换。

You will miss the bus unless you hurry up.

你要是不快点就会错过公交车了。

Unless you help us,we will be lost.

=If you don't help us,we will be lost.

2.as soon as 意为“一……就……”,引导时间状语从句,含有该从句的主从复合句表示从句的动作一发生,主句的动作随之发生。该从句经常用一般现在时表将来。

As soon as she arrives,I'll tell you.

她一到,我就告诉你。

3.so… that… 引导结果状语从句,表示“如此……以至于……”,其中 so 是副词,常用来修饰形容词或副词,that 后接从句。

Li Lei runs so fast that I can't catch up with him.

李雷跑得太快了,以至于我追不上他

习题练习
单选题

I will call you as soon as he ______ here.

A

arrive

B

will arrive

C

arrives

D

arrived

题目答案

C

答案解析

暂无解析
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