2015年职称英语考试：地点状语从句专题讲解
发布时间：2012/11/25 23:02:44 来源：城市网学院 编辑：admin
1、目的状语从句：that, so that, in order that
注意：目的状语从句的谓语动词常与情态动词连用，否则可能是结果状语从句。不可置于句首。
2、结果状语从句：that, so that, so … that, such … that …
注意：so + 形容词/副词 + that从句；such + 名词 + that从句。
3、方式状语从句：as, as if（though）
I'll do as I am told to.
It looks as if it is going to rain.
4.地点状语从句考点聚焦
where, wherever
Make a mark wherever you have any questions.
We will go where the Party directs us.
5、比较状语从句：than, as
6、条件状语从句：if, unless, so （as） long as, in case, once, a far as, on condition that.
注意if与unless的区别：不能用and连接两个unless从句，即不能有… unless …，and unless … 。但if … not and if … not却不受此限。
You won't lose your weight unless you eat less and unless you exercise more.（×）
但可以说 … unless you eat less and exercise more.
7、注意状语从句中从句的省略现象
（1）连接词 + 过去分词
Don't speak until spoken to.
Pressure can be incrased when needed.
Unless repaired, the washing machine is no use.
（2）连词 + 现在分词
Look out while crossing the street.
（3）连词 + 形容词/其他
常见的有it necessary、if possible、when necessary、if any等。
