英语条件状语从句用法与总结、句型结构、训练

2023-09-20 17:27:43来源:新东方在线

  一、英语中条件状语从句的归纳总结:

  条件状语从句主要是用来表述一种假设或条件,如果这个条件实现或者满足,那么主句中的行动或结果就可能发生。条件状语从句常由连词if, unless (if not), as long as, provided (that), so long as, on condition that等引导。

  通常,条件状语从句有四种类型:零条件句(描述一直或总是如此的情况)、一般条件句(也称为现在实际条件句,描述现在或将来可能发生的情况)、二般条件句(也称为虚拟现在条件句,描述与现在事实相反的假设)、三般条件句(也称为虚拟过去条件句,描述与过去事实相反的假设)。

  二、英语中条件状语从句的句型结构:

  1. 零条件句:If + 现在时,现在时。

  例:If you heat water to 100 degrees, it boils.

  2. 一般条件句:If + 现在时,将来时。

  例:If it rains tomorrow, we will stay at home.

  3. 二般条件句:If + 过去式,would / could / might + 动词原形。

  例:If I had time, I would go to the concert.

  4.三般条件句:If + had + 过去分词,would / could / might have +过去分词。

  例:If he had studied harder, he could have passed the exam.

  三、英语中条件状语从句的训练:

  1. Fill in the blank:

  a. If you ________(not hurry), we'll miss the bus.

  b. They could have won the game, if they ________(practice) more.

  2. Put the verbs into the correct form:

  a. If she __________ (be) tired, she will go to bed early.

  b. He wouldn’t be in trouble now if he _________ (listen) to me.

  3. Rewrite the sentence:

  a. You need to wear a coat. Otherwise, you'll feel cold.

  b. She wasn't careful. As a result, she made many mistakes.

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