2011年职称英语重点语法精讲(8)

来源:微学网发布时间:2011-05-10

  4、地点状语从句:where, wherever

  Make a mark wherever you have any questions.

  We will go where the Party directs us.

  5、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.

  6、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.

  7、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.

  8、比较状语从句:than, as

  9、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.

  10、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.