【—语法对让步状语从句的总结】下文是通过对条件状语从句概念的整合,还有例题对条件状语从句的具体分析。
条件状语从句
连接词主要有 if, unless, as/so long as, on condition that 等。.
if 引导的条件句有真实条件句和非真实条件句两种。非真实条件句已在虚拟语气中阐述。
unless = if not.
Let's go out for a walk unless you are too tired.
If you are not too tied, let's go out for a walk.
典型例题
You will be late ___ you leave immediately.
A. unless B. until C. if D. or
答案A。 句意:除非你立即走,否则你就回迟到的。可转化为 If you dong leave immediately, you will be late. B、D句意不对,or表转折,句子如为 You leave immediately or you will be late.
对上述对条件状语从句的概念及什么是条件状语从句掌握,如果又不懂的可以参考。
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