should虚拟语气的用法

 我来答
OfferComing留学
2022-12-22 · OfferComing一站式留学攻略
OfferComing留学
向TA提问
展开全部
1.虚拟语气在条件句中的用法\x0d\x0a(1)若表示与现在事实相反的假设,则条件从句中用过去式,主句中用过去将来式(would,should,could,might + 动词原形);若表示某事将来实现的可能性不大,则条件从句中用should + 动词原形也可用“were to+动词原形”或用过去式动词.如:\x0d\x0aI would certainly go if I had time.(现在)\x0d\x0aIf it should rain,we wouldn”t go out.(将来)\x0d\x0aIf I knew German,I would read the paper to you.(现在)\x0d\x0aIf he were here,we could ask him.(现在)\x0d\x0a(2)若表示与过去事实相反的假设,从句中用过去完成式,主句中用过去将来完成式(should,would,could,might + have + 过去分词).如:\x0d\x0aIf I had set off a little earlier,I would have caught the train.\x0d\x0aShe would / might have come if she hadn”t been so busy.\x0d\x0aIf I hadn”t taken your advice,I would have made a bad mistake.\x0d\x0aIf only you hadn”t told him the news.\x0d\x0a(3)含有虚拟语气的条件状语从句中,如有had,should,were 这三个词的话,在正式或书面语言中可将if省略,再将句子的主语和谓语动词实行全部倒装或部分倒装.如:\x0d\x0aHad they time(=If they had time),they would certainly come and help us.\x0d\x0aShould it be fine(=If it should be fine),we would go for an outing.\x0d\x0aWere I go(=If I were you),I would go.\x0d\x0a(4)若主句从句所指的时间不一致,即条件从句表示与过去事实相反,主句表示与现在事实相反;或者条件从句表示与现在事实相反,主句表真实情况,则从句中应采用与具体时间相对应的虚拟形式.如:\x0d\x0aIf it had rained last night(过去),It would be very cold today(现在).\x0d\x0aIf I had taken your advice(过去),I should have no trouble with the work now(现在).\x0d\x0a2.虚拟语气在宾语从句中的用法\x0d\x0a  在动词suggest,order,demand,propose,request,command,insist等后的宾语从句中,用虚拟语气(即Should+动词原形或只用动词原形)来表示愿望、建议、命令、请求等.在动词wish /would rather后的宾语从句中,用过去式表示与现在事实不符,用过去完成式表示与过去事实不符.如:\x0d\x0aI suggest that we(should)set off at once.\x0d\x0aThe doctor insisted that the patient (should)be X-rayed.\x0d\x0aI wish I were as strong as you.\x0d\x0awould rather that you hadn”t told him.\x0d\x0a3.虚拟语气在主语从句中的用法\x0d\x0a   在It is necessary/important/strange/natural;It is requested/suggested/desired/proposed;it is a pity等结构后的主语从句中要用虚拟语气,即Should+动词原形或只用动词原形.如:\x0d\x0aIt is necessary that he(should)be sent there at once.\x0d\x0aIt is requested that Professor Li(should)give us a speech.\x0d\x0aIt is desired that we(should)get everything ready by tonight.\x0d\x0a4.虚拟语气在表语从句、同位语从句中的用法.\x0d\x0a  在 suggestion,proposal,idea,plan,order,advice等名词后的表语从句、同位语从句中要用虚拟语气,即should+动词原形或只用动词原形.如:\x0d\x0aOur suggestion is that you( should)be the first to go.\x0d\x0aMy advice is that we(should)send for Doctor Li.\x0d\x0aDo you know the order that you(should)keep watch?\x0d\x0a5.虚拟语气在其他状语从句中的用法\x0d\x0a  在as if引导的状语从句中,用过去式表示与现在事实不符,用过去完成式表示与过去事实不符;在so that,in order that引导的状语从句中,常用should/would/could/might+动词原形来表示虚拟语气.如:\x0d\x0aThey talked as if they had been friends for years.\x0d\x0aShe stayed at home for a few days so that she could take care of her mother.\x0d\x0aHe took a taxi to the station so that she should not miss the train.\x0d\x0a6.虚拟语气在定语从句中的用法:\x0d\x0a在it is time后面的定语从句中常用过去式表示虚拟
匿名用户
2017-11-28
展开全部
1.虚拟语气在条件句中的用法
(1)若表示与现在事实相反的假设,则条件从句中用过去式,主句中用过去将来式(would,should,could,might + 动词原形);若表示某事将来实现的可能性不大,则条件从句中用should + 动词原形也可用“were to+动词原形”或用过去式动词.如:
I would certainly go if I had time.(现在)
If it should rain,we wouldn”t go out.(将来)
If I knew German,I would read the paper to you.(现在)
If he were here,we could ask him.(现在)
(2)若表示与过去事实相反的假设,从句中用过去完成式,主句中用过去将来完成式(should,would,could,might + have + 过去分词).如:
If I had set off a little earlier,I would have caught the train.
She would / might have come if she hadn”t been so busy.
If I hadn”t taken your advice,I would have made a bad mistake.
If only you hadn”t told him the news.
(3)含有虚拟语气的条件状语从句中,如有had,should,were 这三个词的话,在正式或书面语言中可将if省略,再将句子的主语和谓语动词实行全部倒装或部分倒装.如:
Had they time(=If they had time),they would certainly come and help us.
Should it be fine(=If it should be fine),we would go for an outing.
Were I go(=If I were you),I would go.
(4)若主句从句所指的时间不一致,即条件从句表示与过去事实相反,主句表示与现在事实相反;或者条件从句表示与现在事实相反,主句表真实情况,则从句中应采用与具体时间相对应的虚拟形式.如:
If it had rained last night(过去),It would be very cold today(现在).
If I had taken your advice(过去),I should have no trouble with the work now(现在).
2.虚拟语气在宾语从句中的用法
在动词suggest,order,demand,propose,request,command,insist等后的宾语从句中,用虚拟语气(即Should+动词原形或只用动词原形)来表示愿望、建议、命令、请求等.在动词wish /would rather后的宾语从句中,用过去式表示与现在事实不符,用过去完成式表示与过去事实不符.如:
I suggest that we(should)set off at once.
The doctor insisted that the patient (should)be X-rayed.
I wish I were as strong as you.
would rather that you hadn”t told him.
3.虚拟语气在主语从句中的用法
在It is necessary/important/strange/natural;It is requested/suggested/desired/proposed;it is a pity等结构后的主语从句中要用虚拟语气,即Should+动词原形或只用动词原形.如:
It is necessary that he(should)be sent there at once.
It is requested that Professor Li(should)give us a speech.
It is desired that we(should)get everything ready by tonight.
4.虚拟语气在表语从句、同位语从句中的用法.
在 suggestion,proposal,idea,plan,order,advice等名词后的表语从句、同位语从句中要用虚拟语气,即should+动词原形或只用动词原形.如:
Our suggestion is that you( should)be the first to go.
My advice is that we(should)send for Doctor Li.
Do you know the order that you(should)keep watch?
5.虚拟语气在其他状语从句中的用法
在as if引导的状语从句中,用过去式表示与现在事实不符,用过去完成式表示与过去事实不符;在so that,in order that引导的状语从句中,常用should/would/could/might+动词原形来表示虚拟语气.如:
They talked as if they had been friends for years.
She stayed at home for a few days so that she could take care of her mother.
He took a taxi to the station so that she should not miss the train.
6.虚拟语气在定语从句中的用法:
在it is time后面的定语从句中常用过去式表示虚拟
本回答被网友采纳
已赞过 已踩过<
你对这个回答的评价是?
评论 收起
推荐律师服务: 若未解决您的问题,请您详细描述您的问题,通过百度律临进行免费专业咨询

为你推荐:

下载百度知道APP,抢鲜体验
使用百度知道APP,立即抢鲜体验。你的手机镜头里或许有别人想知道的答案。
扫描二维码下载
×

类别

我们会通过消息、邮箱等方式尽快将举报结果通知您。

说明

0/200

提交
取消

辅 助

模 式