高考英语40个必考句型（上）
句型1
wouldratherthat somebodydid.."宁愿...；更愿意..."(表示现在或将来的恩望）would ratherthat somebody had done..宁恩.更愿意..(表示过去的恩望）
[例句]
I'd ratheryou posted theletter right now.我想让你现在去寄信.I'd ratheryou were not a celebrated actor. In that case we could spend more timetogether我到情愿你不是个知名演员，这样我们可以有更多的时间在一起.IdratherthatI hadn't seenher yesterday.我情愿昨天没有看到她.
句型2
asif/though主语did/haddone...好像.....表示现在或将来的情况用过去时：表示过去的情
况用过去完成时【参考句型4]
[例句]
Our headteacher treats us as if we were her own children so all the students in ourclassthink highly of her.
Alan talkedabout Rome asifhehadbeen there.Alan谈起罗马来就好像他去过部里似的.
句型3
wish宾语从句"，表示不大可能实现的愿望
表示现在的愿望：主语过去时；表示过去的愿望：主语haddone表示将来的息望：主语would/coulddo
[例句]
How I wishwe students had more free time to relax ourselves!我们学生多么希望有更多的
自由时间放松自己！
I failed inthe maths exam. How I wish 1 hadnt wasted so much time playing!句型4
It'shigh/about time that somebody did (should do) （should 通常不省略) ...早就该...
[例句]
It's timethat you went to school. = It's time that you should go to school.It's hightime that we did something to improve our environment.该是我们为环保做些事情了.I think it'shigh time that she made up her mind. 我想她该拿定主意了.
句型5
情态动词动词不定式完成结构的用法
couldhavedone“本来可以.....（表示过去没有实现的可能）.
mighthavedone“本来可能..;本来应该或可以做某事"（实际没有发生：含有轻微的责备语气.
should/oughttohave done“本来该做某事"（而实际未做）
shouldnot/oughtnot tohave done“本来不该做"（实际却做过了，含有责备语气）
neednthavedone“本来不必做"但是已经做过了)
done表达相反意思，两者都有表示"后悔"之意.
句型6
as though although引导的让步状语从句.
强调的形容词、副词、动词或名词放在连词前.[参考倒装结构】请注意下列句式的变化：[例句]
1.Although/Though I'm young I already know what career I want to follow.→Youngas/though I am I already know what career I want to follow.我虽然年轻，但我已经明白我应该追随什么样的事业.
2.Although/Though I respect him very much I cannot agree with his idea.→Muchas/though I respect him I cannot agree with his idea.
虽然我很尊重他，但是我不同意他的观点.
3.Although/Though he is a child he knows a lot of Chinese characters.
→Child(省略冠词)as/though he is he knows a lotof Chinese characters.他虽然还是个孩子，却认识了许多汉字，
4. Althoughhe tried he couldn't solve the problem.→Try as hemight he couldn't solve the problem.尽管他努力了，但是他没有解决问题.
5. Althoughit is raining I'm going out for a walk.→Raining asit is Fm going out for a walk.
7. Much as lwould like to help I have a lot to do.虽然我很想帮助你，但是我有很多事要做.
...before...特殊用法（1)没来得及.....
[例句]
The rooffell before he had time to dash into the room to save his baby.
To my greatdisappointment my favorite singer left the concert before I could have awordwith her.
...before...特殊用法（2)过了多久才.....或"动作进行到什么程度才....
[例句]
他几乎撞到我了才意识到.We hadwalked a long way before we found some water.我们走了很长的路才找到一点水，Five yearswent by before I knew it.不知不觉，五年过去了，句型9It was时间段before...过了多久才（怎么样）...It was not longbefore..不久，就...般时态）[例句]It was notlong before he sensed the danger of the position.不久他就意识到他处境的危险.It was fivedays before he came back.五天后他才回来.It will behalf a year before you graduate from the school.再过半年你才能毕业.他们大概不久就会互相了解.句型10in case of..(n.) “以防；万”;incase that.."以防，万一.."（调语动词用一般现在时态或should动词原形）[]In case offire what should we do?Pleaseremind me about it in case I forget/should forget.万一我忘了，请提醒我.
It will(not)be时间段before..."要过多久（不久)....才...(before从句谓语动词要用一
In case(that) John es/should e please tell him to wait.Please takeyour umbrella in case (that it rains/should rain).带上雨伞，以防下雨.
句型11
It强调句型
强调句的基本构成：ltis/was被强调的部分who（主要指人时)that其余部分
这种结构可以强调句子的主语、宾语、状语（包括时间，地点，方式，原因等），但是不能强调谓语动词（参考句型15).
原句的谓语动词如果是现在或将来时态，用Itis...that/who.
原句的谓语动词如果是过去时态，用Itwas...that/who..
强调时间、地点、原因或方式时不要用when where或how，必须用that.
[例句1]
I saw him inthe street yesterday afternoon.
→lt was lwho saw him in the street yesterday afternoon.(强调主语)→lt was inthe street that I saw him yesterday afternoon.(强调地点状语)→lt wasyesterday aftermoon that 1 saw him in the street.(强调时[间状语)→lt was himthat/who I saw in the street yesterday aftermoon.(强调宾语)
[例句2]
He didn't goto bed until his mother came back.
→lt was notuntil his mother came back that he went to bed.
He didn't dohis homework until his father came back from work.
→It wasn'tuntil his father came back from work that he did his homework.
[例句3]
Only whenyou nearly lose someone do you fully realize how much you value him.
→lt is onlywhen you nearly lose someone that you fully realize how much you valuehim.
只有你快要失去某个人时，你才意识到你是多么尊重他.
[]
I was lateagain because the traffic was very heavy during the rush hour.
→lt wasbecause the traffic was very heavy during the rush hour that I was late again.（强调句中只能强调由 because 引导的原因状语从句，because 不能换成since as for now（eu
