【英语语法:新概念】if引导的条件句(三种情况都要讲出来)?
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【英语语法:新概念】if引导的条件句(三种情况都要讲出来)?
概念?语法?句型?用法?都要完整
(都讲出来才有加悬赏)
概念?语法?句型?用法?都要完整
(都讲出来才有加悬赏)
![【英语语法:新概念】if引导的条件句(三种情况都要讲出来)?](/uploads/image/z/2059079-23-9.jpg?t=%E3%80%90%E8%8B%B1%E8%AF%AD%E8%AF%AD%E6%B3%95%EF%BC%9A%E6%96%B0%E6%A6%82%E5%BF%B5%E3%80%91if%E5%BC%95%E5%AF%BC%E7%9A%84%E6%9D%A1%E4%BB%B6%E5%8F%A5%EF%BC%88%E4%B8%89%E7%A7%8D%E6%83%85%E5%86%B5%E9%83%BD%E8%A6%81%E8%AE%B2%E5%87%BA%E6%9D%A5%EF%BC%89%3F)
楼主,你说的是不是虚拟语气呀?
含有if条件句的虚拟语气的构成如下:
1) 对现在虚拟:条件句:一般过去时,主句:could/would/should/ought to/might+动词原形
例:if he were here now,we could have a meeting.如果现在他在这儿,我们就可以开会了.(注意用的是he were.he was也可以,不过虚拟语气里be动词规范的用法还是多以were的形式出现 )
2)对过去虚拟:条件句:过去完成时,主句:could/would/should/ought to/might have done
例:if he had taken my advice,he shouldn't have failed in the exam.如果他听从我的建议,他考试就不会不及格.
3)对将来虚拟:条件句:(1)were to do (2) should do (3)一般过去时 主句:could/would/should/ought to/might +动词原形
例:If i had time/were to have time/should have time,I would visit my parents tomorrow.如果我明天有时间,我就去看望我的父母
含有if条件句的虚拟语气的构成如下:
1) 对现在虚拟:条件句:一般过去时,主句:could/would/should/ought to/might+动词原形
例:if he were here now,we could have a meeting.如果现在他在这儿,我们就可以开会了.(注意用的是he were.he was也可以,不过虚拟语气里be动词规范的用法还是多以were的形式出现 )
2)对过去虚拟:条件句:过去完成时,主句:could/would/should/ought to/might have done
例:if he had taken my advice,he shouldn't have failed in the exam.如果他听从我的建议,他考试就不会不及格.
3)对将来虚拟:条件句:(1)were to do (2) should do (3)一般过去时 主句:could/would/should/ought to/might +动词原形
例:If i had time/were to have time/should have time,I would visit my parents tomorrow.如果我明天有时间,我就去看望我的父母