注册 登录  
 加关注
   显示下一条  |  关闭
温馨提示!由于新浪微博认证机制调整,您的新浪微博帐号绑定已过期,请重新绑定!立即重新绑定新浪微博》  |  关闭

向阳英语教育的博客

热忱欢迎广大学子及英语爱好者咨询交流,有意者可加QQ965920830

 
 
 

日志

 
 
关于我

三尺讲台是我的T台。选择了就不后悔,在与教育流氓叫板的呐喊声中像自己手中的粉笔一样,给孩子们描绘美好的未来,自己变成微不足道的粉末。

网易考拉推荐

虚拟语气在条件从句的用法  

2016-12-11 09:04:30|  分类: 默认分类 |  标签: |举报 |字号 订阅

  下载LOFTER 我的照片书  |

虚拟语气在条件从句的用法

           1.表示与现在事实相反,谓语动词的形式

条件从句

主句

动词过去式(bewere

would(should, could, might)+动词原形

        We would go with you now if we had time.

        We could ask him if he were here now.

        If I knew his telephone number, I would ring him up now.

2.表示与过去事实相反,谓语动词的形式

条件从句

主句

had+过去分词

would(should, could, might)+have+动词的过去分词

        If he had seen you yesterday, he would have asked you about it.

        If you had come earlier, you might have met him.

        I should have called you if I had known your telephone number that day.

3.表示与将来事实相反,谓语动词的形式

条件从句

主句

动词过去式

should+动词原形

were to+动词原形

 

would(should, could, might)+动词原形

           If it should rain tomorrow, the crops would be saved.

           If it were to snow tomorrow, they would not go out.

常考点一:这种用法中的if可省略,但需要把had, should, were放在句首。

If he had seen you yesterday, he would have asked you about it. 可以改写成:

Had he seen you yesterday, he would have asked you about it.

If it were to snow tomorrow, they would not go out. 可以改写成:

Were it to snow tomorrow, they would not go out.

常考点二:没有if条件句,而是利用其他手段来暗示存在虚拟条件。但这类隐含式虚拟条件句往往都可以转化为if引导的条件句。表示含蓄虚拟条件的方法有:

1)介词或介词短语,如but for(该短语只能用在虚拟语气中), without

 But for your help, I would not have finished the work on time.

=If you had not helped me, I would not have finished the work on time. (=But that you had helped me, I would not have finished the work on time.

 but that的意思等于but for,不是介词,是状语从句的从属连词,后接完整的句子;也只能用在虚拟语气中。

(2)连词,如:or(otherwise), but

 He was taken to hospital at once, otherwise he would have died.

They got two free tickets to Canada, otherwise they’d never have been able to afford to go.

I would have come to help you but I have been busy all the time.

常考点三:if条件句和主句时间有跨度,动词的形式要按照跨度变动。如:

   If you had followed the doctors advice, you would be well now.

  评论这张
 
阅读(25)| 评论(1)
推荐 转载

历史上的今天

评论

<#--最新日志,群博日志--> <#--推荐日志--> <#--引用记录--> <#--博主推荐--> <#--随机阅读--> <#--首页推荐--> <#--历史上的今天--> <#--被推荐日志--> <#--上一篇,下一篇--> <#-- 热度 --> <#-- 网易新闻广告 --> <#--右边模块结构--> <#--评论模块结构--> <#--引用模块结构--> <#--博主发起的投票-->
 
 
 
 
 
 
 
 
 
 
 
 
 
 

页脚

网易公司版权所有 ©1997-2017