虚拟语气在线视频

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我是孙老师很高兴见到你们

今天我们一起来学习关于

虚拟语气请看讲解

虚拟语气第一英语动词有三种语气

陈述语气祈使语气和虚拟语气

从定义来看虚拟语气是用来

表示说的话不是事实

或者是不可能发生

或可能性比较小的情况

而是一种愿望建议假设的语气

叫做虚拟语气

大家看下面两个句子有什么不同

If I am free I will visit you

这是真实条件句

If I were a bird I would fly into the sky

虚拟条件句

What would you do if you won the lottery

如果你中了彩票你会怎么做回答

If I won the lottery I would buy an expensive car

与事实相反

如果我中了彩票我会买一辆车

If he had got up early he

would not have been late for school

也是与事实相反

如果他早点起床就不会上学迟到

If he had driven more carefully

he would not have been

the car accident yesterday

如果他仔细开车

他就不会遇到那场交通事故

也是与过去事实相反的虚拟语气

假如他来了我们对他说什么呢

If he were to come

what should we say to him

假如他看见我就会认识我

If he should see me he would know me

大家可以看一下一般条件句中的

虚拟语气

可以分为过去

If条件句用had done

主句用would could should have done

与现在事实相反助动词be用were

实义动词do用did

主句用would could should do sth

与将来事实相反的从句用did

be动词用were

或者用should do were to do

主句用would could should do sth

比如one

If I were you I wouldn’t

buy the house right now

如果我是你

我不会现在买这个房子

是与现在事实相反的情况two

If the captain had been more careful

his ship would not have sunk

如果船长更加细心的话

他的船就不会沉

也是跟过去事实相反的情况

Three If he should call me tomorrow

I would let him know

如果他明天给我打电话

我会让他知道

二名词性从句的虚拟语气

主要是表示命令要求建议的虚拟语气

第一种情况宾语从句常见的动词有

一个坚持insist

两个命令order command

三个建议advise suggest or propose

四个要求demand

require request and ask

这些动词后面的宾语从句

要用虚拟语气

即从句中的谓语动词用

should + 动词原形

这里的should可以省略

第一个句子

我们建议Tom去休息一下

第二个句子他坚持要求我到场

第三个句子

国王命令囚犯明天要实施死刑

第四个句子

他们要求我们派他们去那儿工作

第一个句子用到的是suggest

We suggested that

Tom should have a rest

Two He insisted that I should be present

Three The king ordered that the prisoners

Should be killed the next day

Four They requested that

we should send them to work there

另外有几种特殊结构中

要用到虚拟语气

第一种wish + 从句

跟现在事实相反的

wish要用过去时did或者were

如果跟过去事实相反

wish后面的宾语从句要用到

过去完成时即had done

如果跟未来事实相反

就要用到 would could might

加上动词原形这种情况

比如I wish I were a bird

跟现在事实相反

我希望我是一只鸟

第二个

I wish I hadn’t made such a mistake

跟过去事实相反

我希望我没犯这样的错误

接下来跟未来事实相反

We wish our parents

wouldn’t punish us

我希望家长不会惩罚我们

注意without和but for

构成的虚拟比如

Without sunlight people’s life

would be different from today

没有太阳光人们的生活

将不同于往昔

But for your help

I wouldn’t have finished the work

要不是你的帮助

我就不会完成这项工作

都是跟过去事实相反的

But for water it would be impossible

to live in the desert

如果没有水在沙漠里存活是不可能的

跟现在事实相反

大家虚拟语气要注意几点

第一个假设条件的从句

谓语动词发生的时间

与主句假设的谓语动词不一致

叫做错综条件虚拟

如果主句和从句的谓语动词要依照

假设的时间而定比如

If the weather had been finer

the crops would be growing still better

如果天气更好一些庄稼

就会长得更好一些

If you had followed the

teacher’s advice

you wouldn’t be in the hospital

如果你过去听从老师的建议

现在就不会在医院里呆着了

二当insist表示坚持认为

suggest表示表明暗示意思的时候

后面的宾语从句不用虚拟语气比如

He insisted that

he had not entered the house

and he insisted that

he should be set free

His pale face suggested

that he was weak

他苍白的脸色表明了他很弱

这时候不用虚拟语气

请大家做后面的精选习题

今天的课就到这里

大家再见