2013年职称英语考试语法指导：状语从句4

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2013年职称英语考试语法指导：状语从句4
- o8 T4 a# L0 V- D/ T地点状语从句：where, whereverMake a mark wherever you have any questions.We will go where the Party directs us.
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 d" U! t, ^  z! @5 ~& J) R' A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。
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. 中华考试网(www．Examw。com)
5 i2 A( y7 e- U' {6 F6 L比较状语从句：than, as
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.
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。