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GMAT语法常识之虚拟语气的使用技巧.

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语法是GMAT考试中的熟客了,我们常常能在GMAT语法中发现一些熟脸。虚拟语气便是其中之一,我们在平常的复习准备中就对其有了大致的了解。那么在这项考试中虚拟语气应该如何使用呢?怎样才能发挥出虚拟语气的作用呢?澳际小编给大家带来的GMAT考试介绍就详细告诉大家虚拟语气的使用方法:

  虚拟语气的表达

  If所引导的条件从句的谓语动词用虚拟语气,主句谓语动词也要用虚拟语气

  1. 表示与现在的事实相反:

  从句的谓语动词用过去时(be一律用were),主句用should(第一人称)/would(第二/三人称)/could/might + 动词原形

  1.If I were you,I would take an umbrella.

  如果我是你,我会带把伞。(事实:我不可能是你)

  2.If I knew his telephone number,I would tell you.

  如果我知道他的电话号码,我就会告诉你。(事实:不知道)

  3.If there were no air or water,there would be no living things on the earth.

  如果没有水和空气,地球上就不会有生物。(事实:地球上既有空气也有水)

  4.If I had any money with me,I could lend you some.

  如果我带钱了,我就会借给你些。(事实:没有带钱)

  5.If he studied harder,he might pass the exam.

  如果他再努力些,就能通过考试了。(事实:没有努力)

  6.she looked at me as if I had been a stranger.

  她看我的样子好像我是一个陌生人。(事实:我并非陌生人)

  2. 表示与过去的事实相反:

  从句的位于动词用had + 过去分词,主句用should(第一人称)/would(第二/三人称)/could/might + have + 动词过去分词

  1. If I had got there earlier,I should/could have met her. 如果我早到那儿,我就会见到她。(事实:去晚了)

  2.If he had taken my advice,he would not have made such a mistake. 如果他听我的劝告的话,就不会犯这样的错误了。(事实:没有听我的话)

  3. 表示与将来的事实相反:

  从句:①if+主语+were to do 主句:①主语+should/would/could/might+do

  从句:②if+主语+did/were主句:②主语+should/would/could/might+do  从句:③if+主语+should+do主句:③主语+should/would/could/might+do

  1.If he should come here tomorrow,I would talk to him.

  如果他明天来这儿的话,我就跟他谈谈。(事实:来的可能性很小)

  2.If there were a heavy snow next Sunday,we would not go skating.

  如果下周日下大雪,我们就不能去滑冰了。(事实:下雪可能性很小)

  3.If she were to be here next Monday,I would tell her about the matter.

  如果她下周一来这儿的话,我就会告诉她这件事的始末。(事实:来的可能性很小)

  当虚拟条件句的谓语动词含有were,should,had时,if可以省略,这时条件从句要用倒装语序,即把were,should,had等词置于句首,这种多用于书面语。eg:

  Should he agree to go there,we would send him there.

  要是他答应去的话,我们就派他去。

  Were she here,she would agree with us.

  如果她在这儿的话,她会同意我们的。

  Had he learnt about computers,we would have hired him to work here.

  如果他懂一些电脑知识的话,我们已经聘用他来这里工作了。

  虚拟语气的错综条件句

  有时,虚拟条件句中,结果主句和条件从句的谓语动作若不是同时发生时,虚拟语气的形式应作相应的调整。这种条件句叫错综条件句。

  ①从句的动作与过去事实相反,而主句的动作与现在或现在正在发生的事实不符。

  eg:

  If I had worked hard at school,I would be an engineer,too.

  如果我在学校学习刻苦的话,我现在也会成为一个工程师了

  If they had informed us,we would not come here now.

  如果他们通知过我们的话,我们现在就不会来这里了。

  ②从句的动作与现在事实相反,而主句的动作与过去事实不符。

  如:

  If he were free today,we would have sent him to Beijing.

  如果他今天有空的话,我们会已经派他去北京了。

  If he knew her,he would have greeted her.

  要是他认识她的话,他肯定会去问候她了。

  特殊形式的虚拟语气

  非真实条件句中的条件从句有时不表达出来,只暗含在副词、介词短语、上下文或其他方式表示出来,这种句子叫做含蓄条件句,在多数情况下,条件会暗含在短语中,如without…,but for…等

  eg:

  But for his help, we would be working now.

  要不是他的帮助,我们还会在工作呢。

  Without your instruction, I would not have made such great progress.

  要是没有你的指导,我不会取得如此大的进步。

  We didn&apost know his telephone number, otherwise we would have telephoned him.

  我们不知道他的电话号码,否则我们就会给他打电话。

  以上就是小编对于GMAT考试虚拟语气的用法介绍,其实GMAT语法与我们以前学习的英语语法是没有太大的差别的,考生们需要努力掌握虚拟语气的使用方法。这样在阅读或者作文中都能发挥出应有的作用,希望小编的GMAT考试介绍能很好的帮助到大家,祝大家考试顺利。

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