蓝色生死恋,考研英语语法速成(上),河南移动网上营业厅

(一)神态动词

一.神态动词的现在完结式的用法

神态动词现在完结式主要有两个功用:表明现已发作的状况和表明虚拟语气。在这两个方面must/mustn’t,;can/c尘欲香夜缠双ann’t;need/needn’t;may/mayn’t;might/mightn’t青林歪弹;should/shouldn’t;ought等神态动词+完结式表明的意思是有必定差异的

1.表明现已发作的状况。

1)must have+曩昔分词,表明对已发作状况的必定估测,译为“(昨日)必定……”。如:

My pain apparent the moment I walked into陈禹岍 the room, for the first man I met asked sympathetically:” Are you 林若溪feeling all right?”

[A] must be [B] had been [C] mu里教师st have been [D] had to be

(答案为C)

2)can’t / couldn’t have+曩昔分词,表明对已发作状况的否定估测,译为“(昨日)必定没……”。如:

Mary my letter; otherwise she would have replied before now.

[A] couldn’t have received [B] ought to have received

[C] has received [D] s蓝色生死恋,考研英语语法速成(上),河南移动网上营业厅houldn’t have received

(答案为A)

3)may / might have +曩昔分词,表明对已发作的作业做不用定、可能性很小的估测,或事实上底子没发作,译为“或许……”。如:

At Florida Power’s Crystal River plant, a potentially serious leakage of radioactive water may have been unknowingly caused by an electrician.

2.表明虚拟语气。

1) needn’t have +曩昔分词,表明做了不用做的事,相当于”didn’t need to do”,译为“其实没必要……”。如:

You needn’t have come over yourself.

As it turned out to be a small house party, we so formally.

[A] needn’t dress up [B]did not need have dressed up

[C] did not need悬组词 dress u黄衍仁p [D] needn’t have dressed up

(没有必要穿的那么正式,体现是说话者的主张,实践成果是否真的穿的很正式没有确认,答案为D)

2)should have +曩昔分词,表明应该做某事但实践上未做,译为“本应该……”should蓝色生死恋,考研英语语法速成(上),河南移动网上营业厅 not + have曩昔分词表明本不应该做某事但实践上做了,译为“本不应该……”。如:

I regret having left the work unfinished; I姐姐不要啊 should have planned ever孙兴老婆ything ahead carefully.

姐姐的男朋友

我原本应该事前认真地把每件作业规划的很好,但实践上作者仍是没有规划好,以致作业没有完结。

3) ought to have +曩昔分词,表明动作按理该发作了,但实践上未发作,译为“该……”,与should的完结式含义类似。如:

The porter ought to have called the fire-brigade as soon as he saw the fire in the stock, 蓝色生死恋,考研英语语法速成(上),河南移动网上营业厅which went up in smoke .

4) could have +曩昔分词,表明曩昔原本能够做但却未做,译为“完全能够……”。这点与ought/shoul88517888d/ have +曩昔分词用法类似。如:

What you said is right, but you could have phrased it more tactfully.

5) may/ might have +曩昔分词,表明曩昔能够做但实践未做,译为“(那样)或许会……Ezgirl”。如:

It might have been better to include more punchy statistics蓝色生死恋,考研英语语法速成(上),河南移动网上营业厅 and photos of equipment in the introduction to fur妩媚动人ther assist first-time office automation managers.

二.几个神态动词常考的句型:

1).may/might (just被男人) as well “无妨,最好”,与had better附近;

Since the flight was cancel尼玛拉姆led, you might as well go by trai蓝色生死恋,考研英语语法速成(上),河南移动网上营业厅n.

已然航班现已取消了,你无妨乘火车吧。相当于you had better go by train。

2).cannot / can’t…too …“越……越好,怎样也不过火”。留意这个句型的变体cannot…over….如:

You cannot be too careful when you drive a car.驾车时分,越当心越好。

Th蓝色生死恋,考研英语语法速成(上),河南移动网上营业厅e final chapter covers organizational change and devel石井优希opment. This subject cannot be over emphasized .

3).usedn’t或did’t use to为used to (do)的否定式。

4).should除了“应该”一层意思外,考研纲要还规定要把握其“居然”的意思。如:I didn’t expect that he should have behaved like that.我无法幻想他居然这样做。

三.神态动塞冰块词被迫联系的自动表达法

1.want, require, worth(形容词)后边接doing也能够表明被迫含义。蓝色生死恋,考研英语语法速成(上),河南移动网上营业厅

Your hair wants cutting

The book is worth reading

The floor requires wa咲诗织shing.

2.need既能够用nee阴阳师新ssr云外镜d to be done也能够运用need doing,两种方式都表达被迫的含义

The house needs painting= the house needs to be painted.

The watch needed repairing= the watch needed to be repaired.

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