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小升初语法总结十八——虚拟语气(二)

来源:学而思英语网 文章作者:学习 2010-04-14 15:44:56

[标签:语法 小升初]

  大家的虚拟语气掌握的还不是很好,今天再作一下虚拟语气专题的总结,大家今天再来复习一遍。重新检查一下自己的错题,看看到底错在哪里。

  虚拟语气表示一种假设的情况,或一种主观的愿望,即动词所表示的动作或状态并非事实,或不可能实现。英语虚拟语气的形式有下列几种:

  一、与现在事实相反

  If had the time, John would make a trip to China to see the Great Wall.

  If I were you, I would give up drinking immediately.

  二.与将来事实相反

  If you should lose, what would you do?

  If I were to see her tomorrow, I would tell her thetruth.

  If you went there next time, you would see what I mean.

  三、与过去事实相反

  If I’d dnown that it was going to rain, I would never have gone for a walk in the country.

  四、虚拟语气的几种特殊用法

  省掉if的条件从句结构:

  Had you asked me, I would have told you.    (=If you had asked me,…)

  2.有时虚拟条件不用条件从句而用不定式、分词、介词、名词、连接词或定语从句来表示,如:

  A true friend would not do such a thing.

  (=If he were a true friend, he...)

  (=If there were no water,…)

  (=If you hadn’t helped me,…)

  3.有时条件从句中的动作和结果从句中的动作发生的时间不一致,如:

  If he had followed the doctor’s advice, he would be quite all right now.

  If I were you, I would have gone home.

  五、虚拟语气的其他用法

  1、Suggest, advise 等动词之后宾语从句须用虚拟语气,其句子结构如下:

  注意:在此结构中that不可省略;should省不省均可。

  He suggested that they (should ) stop smoking.

  上述动词的名词形式出现时,that 引导的从句仍用虚拟语气。

  He made a request that they (should ) stop smoking.

  如果that 引导的从句所表达的内容是事实,也可用陈述语气。

  He insists that he is right.

  2、It is (was )+necessary, a pity 等+that引导的从句须用虚拟语气,其句子结构如下:

  It is important that you (should) follow the doctor’s orders.

  It is right that you should have done your homework.

  3、wish的用法

  I wish I were a pop singer.    (=I am sorry I am not a pop singer..)

  I wish I had never stopped teaching.    (=I am sorry I stopped teaching.)

  I wish they’d let us get some sleep.

  注意:wish与hope接宾语从句的区别在于:hope表示一般可以实现的希望,宾语从句用陈述语气。wish表示很难或不大可能实现的希望,宾语从句用虚拟语气。试比较:

  (1) We hope they will come,(We don’t know if they can come.)

  (2) We wish they could come,(We know they are not coming.)

  4、as if, as though, would(had) rather(that)引导的从句须用虚拟语气,如:

     He acts as if nothing had happened.

     I would rather you didn’t tell him.

  5、It’s (high) time that…+动词过去式或should+动词原形,如:

  It’s time (that) you had a hair cut.

  It’s high time (that) we took some action.

 大家通过今天的总结再复习一遍把。

百科词条:语法 小升初