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状语从句(第二章)
编辑:admin 时间:2012/10/7 18:07:00 来源:高中学习网

4 、目的状语从句

     表示目的状语的从句可以由 that, so that, in order that, lest, for fear that, in case 等词引导,例如:
You must speak louder so that /in order that you can be heard by all.
He wrote the name down for fear that(lest) he should forget it.
Better take more clothes in case the weather is cold.
5 、结果状语从句

     结果状语从句常由 so… that 或 such…that 引导,掌握这两个句型,首先要了解 so 和 such 与其后的词的搭配规律。
比较:so 和 such
其规律由 so 与 such 的不同词性决定。 such 是形容词,修饰名词或名词词组, so 是副词,只能修饰形容词或副词。 so 还可与表示数量的形容词 many, few, much, little 连用,形成固定搭配。
so foolish such a fool
so nice a flower such a nice flower
so many / few flowers such nice flowers
so much / little money. such rapid progress
so many people such a lot of people
(so many 已成固定搭配, a lot of 虽相当于 many ,但 a lot of 为名词性的,只能用 such 搭配。)
so…that 与 such…that 之间的转换既为 so 与 such 之间的转换。
The boy is so young that he can't go to school.
He is such a young boy that he can't go to school

6 、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.


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