内容正文:
课程名称: 虚拟语气
高中英语(高三一轮复习语法专项)
学段:高三英语
主讲:廖外凤
单位: 湖南省耒阳四中
Lead in
Can you tell me the name of the song ?
If I were a boy.
英语的动词一般可带有三种不同的语气:陈述语气,祈使语气和虚拟语气。
虚拟语气:虚拟语气表示说话人的愿望、假设或建议,而不表示客观存在的事实(不是事实或不大可能发生的事情)。
虚拟语气通过谓语动词的特殊形式来表示。
高考中虚拟语气的常考形式:
Revision Content
1. if 引导的虚拟条件句
2.条件句倒装型
3.含蓄条件句的虚拟语气
4. 名词性从句
If he had got up earlier , he could have caught the train.
a. if真实条件句 表示条件是真的或有可能实现的, 采用陈述语气。
b. if虚拟条件句表示对事实的相反的假设,或是虚拟的或几乎无法实现的, 采用虚拟语气。
What will you do if it rains tomorrow?
I will sleep at home if it rains tomorrow.
1. if 引导的虚拟条件句
①与现在事实相反
③与过去事实相反
②与将来事实可能相反
If I were the Minister of Education , I would let the students go to school a little later.
与现在事实相反
If I had a great deal of money now, I would buy a big house for my parents.
与现在事实相反
if虚拟条件句
did
(be用were)
would/should / might / could +V原
if虚拟条件句 主句
与现在事实相反的假设
If I met Obama some day, I would shake hands with him.
If I were to meet Obama some day, …
If I should meet Obama some day, …
与将来事实相反
if虚拟条件句
1、did
2、were to+ 动原
3、should +动原
would ( should / might / could )+动原
if虚拟条件句 主句
与将来事实相反的假设
If the boy had driven more carefully, he would not have caused the car accident.
与过去事实相反
if虚拟条件句
had +done
would ( should / might / could )+have done
if虚拟条件句 主句
与过去事实相反的假设
2.虚拟条件句中的倒装
a.在虚拟条件句中,如果条件句中有were, had(助动词)或should时,可使用倒装结构, were, had,或should 可提前,if省略。
b.若条件从句为否定句,否定词not应置于主语之后,而不能与were,should,had等缩略成weren’t,shouldn’t,hadn’t置于句首。
1). If I had seen him then, I would have been very happy.
= Had I seen him then, I would have been very happy.
2). If I were not so busy, I would go with you.
= Were I not so busy, I would go with you.
虚拟句不含有if从句,而是以but 、but for、with、without、or(else)、otherwise等引导的句子代替if从句,主句的谓语动词的形式与前面虚拟语气的基本用法相同(情过+do或情过+have done)。
3、含蓄条件句
1.I was ill that day. Otherwise, I ___________________ (take part in) the sports meet.
2.We ____________________(not finish) the wor