新高考英语语法——虚拟语气精讲
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新高考英语语法——虚拟语气精讲
第一部分:英语中的四大语气
1. 陈述语气:I like apples 我喜欢苹果。(肯定)
I don\\\\'t like apples我不喜欢苹果(否定)
2. 疑问语气:What\\\\'s your name?你叫什么名字?
Do you like apples? 你喜欢苹果?
3. 祈使语气:Open the door 打开门
4. 虚拟语气:If I were you, I would forgive her如果我是你,我将会原谅她。
第二部分:虚拟语气结构讲解(考试重点)
1,与现在的事实相反:
从句用过去式,主句用would/could/might/should/+动词原形
例如;If I had time ,the classroom would be so clean 如果我有时间,教室将会更加干净。
2,与过去的事实相反:
主句用would/could/should/might/+have+ done , 从句中过去完成时
例如;If I had finished my homework ,I would have passed that test
如果当时我完成了我的做,我就能够通过我的考试了。
3,与将来的事实相反:
主句用:should/could/would/might/+动词原形,从句用should do (可能性最大),过去式(可能性一般)were to do (可能性最小)
If it should snow tomorrow,I would make a snowman 如果明天下雪,明天我将堆一个雪人
If it snowed tomorrow,I would make a snowman 如果明天下雪,明天我将堆一个雪人
If it were to snow tomorrow ,I would make a snowman 如果明天下雪,我将堆一个雪人
虚拟语气的倒装形式
If I had worked hard ,I would have finished it 如果当时我努力工作,我就已经完成它了。
=Had I worked hard ,I would have finished it
If it should snow tomorrow ,I would make a snowman 如果明天下雪,我将会堆雪人
=Should it snow tomorrow ,I would make a snowman
If it were to snow tomorrow ,I would make a snowman
=Were it to snow tomorrow ,I would make a snowman
第三部分:虚拟语气在各类从句中的用法(所有考点)
一.在主语从句中,
用来表示惊奇、惋惜、理应如此等,其谓语形式是“(should) + 动词原形”,常用于下列三种句型中:
1. It is necessary (vital, important, natural, strange, wonderful, proper, right, good, wrong, impossible, etc.) + that -clause
e.g. It is important that we (should) master a foreign language.
2. It is a pity ( a shame, no wonder, your duty, etc.) + that-clause.
e.g. It is a great pity that he should be so careless.
3. It is suggested (ordered, proposed, requested, etc.) + that-clause.
e.g. It is requested that she should sing an English song.
在上述句型的主语从句中,should意为“应该”,“竟然”,可以省去,但不可换用would, 主句所用的时态不限。
二.在宾语从句中
1. 用于wish后的宾语从句中,表示未实行的活不可能实现的愿望,汉语可译为“可惜”、“......就好了”、“悔不该......”,“但愿......”等。
A.构成形式
B.用法:
a. 与现在相反的愿望:
I wish I were ten years younger.
I wish I knew how to drive a car.
b. 与过去事实相反的愿望:
I wish I had gone to the football match last night.
I wish you had been here yesterday.
c. 与将来可能相反的愿望:
I wish the boys would be quiet.
He wishes you would go and visit him.
注:
1. hope + 宾语从句(陈述语气),表示的是可能实现的愿望,比较:
I hope it is true.
I wish it were true.
2. 用于command(命令),insist(坚持要),suggest(建议),propose(建议),order(命令)以及request(恳求),desire(希望)等之后的宾语从句中,表示“要求、请求、建议、命令等,其谓语形式是:“should + 动词原形”(should 可省,但不可换用would)。
e.g. I suggest that he (should) be sent to hospital as soon as possible.
常见动词:一坚持,二命令,四建议,九要求。即:
1.insist
2. order, command
4. advise, suggest, propose, recommend
9.ask,claim, demand, desire, decide, instruct, require, request, urge
三.在表语从句中,
表示间接的命令、要求、请求、建议、决定等,主句中的主语通常是:suggestion, proposal, request, orders, idea等,从句谓语形式是(should可省,但不可换用would)。
His suggestion is that we (should) hold another meeting to discuss the question.注:as if引导的从句也可作表语从句,as if从句用虚拟语气,如:
She felt as if she were going to die.
在It looks (seems, sounds) as if后的表语从句中,如果接近事实的可能性大,也可用陈述语气。It looks as if it is going to rain.
四.在同位语从句中,
在suggestion, proposal, order, idea等名词后面的同位语从句中,通常用(should) + 动词原形。