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2015年GCT考试英语备考辅导:状语从句

2014-02-24 14:01:18来源:233网校

  一、时间状语从句

  as/when/while

  1._________I was walking down the street,I noticed a police car in front of No.37.

  When/while/As=During the time that (时间段)

  2._________ Mary was writing a letter, the children were playing outside.

  While=At the same time as 与……同时

  3.The volume varies _________ the temperature increases.

  as 体积随着温度增加而变化。

  4.________ he stood up,he dropped the glass.

  As/When=At the time that (时间点)

  练习:

  1. ____________I had done it,I knew I had made a mistake.

  A. Direct B. Directly

  C. Moment D. Constant

  二、条件状语从句

  if 好的条件,可用 provided/providing/suppose/supposing(that)/ on condition that 替换

  不好的条件可用 so/as long as替换

  如:If/Provided(that)it snows tomorrow, we shall play snowballs.

  If/So long as it snows tomorrow, we shall delay our trip to the seaside.

  练习:

  1. We’ll visit Europe next year ______ we have enough money.

  A. lest B. until C. unless D. provided

  only if/if only

  1.only if=only on condition that“只要,只有…”

  如:Only if a teacher has given permission is a student allowed to enter this room.(主句例装)

  只有得到教师的允许,学生才可以进这间屋。

  2.If only“要是…就好了”(虚拟)

  如:If only we had arrived in time,we would not have missed the train.

  if/unless

  unless=if…not (且语气较强)

  如:You will make progress if you study hard.

  比较:You will never make progress unless you study hard.

  Unless he comes,we won’t be able to go.


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