虚拟语气公开课课件全

主语+would (
should / might / could )＋动词原 形
If+主语+had +动词的过 主语 + would (
去分词
should / might /
即：If+过去完成时态 could )＋have
done
1、If+主语+动词过去式 2、If+主语+were to+ 动词 原形
与现在事实相反
If I were the schoolmaster , I would let the students get up a little later.
schoolmaster
if虚拟条件句 if虚拟条件句
主句
与将来 事实相 反的假 设
1、did 2、were to+ 动原 3、should +动原
if虚拟条件句 if虚拟条件句
与过去 事实相 反的假 设
had +done
主句
would ( should / might / could ) ＋have done
与过去事实相反
If the boy had driven more carefully, he would not have caused the car accident.
would ( should / might / could )＋动原
与 将 来 事 实 相 反
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, …
1. if 引导的虚拟条件句
①与现在事实相反 ②与将来事实可能相反 ③与过去事实相反
if虚拟条件句 if虚拟条件句
主句
与现在 事实相
did
反设的假（be动词用were)
would( should
/ might / could )＋动原
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.
Should（不省） +v/ 过去式
4. But for/otherwise/ without/in that case
1.Would,could,should,might+v
2.would,could,should,might
+have done
Period Four Grammar：Subjunctive (1)
虚拟语气
虚拟语气的概念
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：
1. if 引导的虚拟条件句 2. 名词性从句 3. 固定句式 4. 情态动词表示虚拟 5. 可用可不用虚拟语气的情况
与过去事实相反
If the foreigner had learnt how to swim, he would not have been trapped on the island for four years.
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。
虚拟语气(1) 动词的语气表示说话人的态度和看法，可分 为陈述语气、祈使语气和虚拟语气。陈述语气 用来陈述讲话人认为是事实的事情，有肯定、 否定、疑问和感叹等形式。祈使语气用来说明 说话人的请求、命令等。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。虚拟语气通过谓语动词的特殊形式来表 示。
语气
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。不同 的语气用动词的不同形式（有的还借助 句法形式）来表示。
与ຫໍສະໝຸດ Baidu在 事实相 反的假 设
与过去 事实相 反的假 设
与将来 事实相 反的假 设
if虚拟条件句
主句
If+主语+ 动词的过去式 （be动词一般用were)
即：If+一般过去时态 （be动词一般用were)
2). If I should have time, I would go with you. = Should I have time, I would go with you. 3). If I were not so busy, I would go with you. = Were I not so busy, I would go with you.
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.
If I get up early, I will catch the train.
If I had got up earlier , I 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。
三个建议，四个要求。 suggest
2. It is（necessary，strange…）+that… 1.过去式
1. wish/as if
2.过去完成
3.could、would、might +v
2. Would rather/ if only
1.过去式 2.过去完成
类似if型 3. It is (high) time that…
3、If+主语+should +动词原 形
主语+would (
should / might / could )＋动词原 形
If 型
。。。 。。。 。。。
混杂条件句(各自为准) Were, had ,should提前，省略if
Subjective mood
1. 一个坚持，两个命令， insist
Should +v型