五、非谓语动词的其他考点
1.接不定式或动名词做宾语都可以，但在意思上有区别的动词的用法
mean to do想要(做某事) propose to do 打算(做某事)
mean doing意味(做某事) propose doing建议(做某事)
forget to do忘记(要做的事) remember to do记得(要做某事)
forget doing忘记(已做的事) remember doing记得(已做过的事)
go on to do继而(做另一件事) stop to do停下来去做另一件事
go on doing继续(做原来的事) stop doing停止正在做的事
regret to do(对将要做的事)遗憾 regret doing(对已做过的事)后悔
如：
Mr. Jankin regretted having blamed his secretary for the mistake, for he later discovered it was his own fault.
The boy is constantly being told not to scratch the paint off the wall, but he goes on doing it all the same.
2.不定式的习惯用法
句型：cannot help but do cannot but do
cannot choose but do can do nothing but do
have no choice/alternative but to do
上述句型的意思接近，即“不得不做”、“不禁做”、“不由自主地做”、“不能不做”、“只能做”。其共同的特点是都有一个否定词和but。如：
Nobody can help but be fascinated by the world into which he is taken by the science fiction.When I consider how talented he is as a painter, I cannot help but believe that the public will appreciate his gift.
3.动名词的习惯用法
句型：be busy/active doing sth. have difficulty/trouble/problem doing sth.
It’s no good/use/picnic doing sth. have a good/great/wonderful time doing sth.
spend/waste time doing sth. There is no point/sense/harm/ use doing sth.
cannot help doing sth. There is no doing sth.
I know it isn’t important but I can’t help thinking about it.
Alice was having trouble controlling the children because there were so many of them.
There is no use crying over spilt milk.
4.there be 非谓语动词的用法
(1)做宾语时取决于谓语动词的持续要求。如：
The students expected there to be more reviewing classes before the final exams.
(expect要求接不定式做宾语)
(2)做目的状语或程度状语时用for there to be，做其他状语用there being。如：
For there to be successful communication, there must be attentiveness and involvement in the discussion itself by all present.
(for there to be…在句中做目的状语)
It isn’t cold enough for there to be a frost tonight, so I can leave Jim’s car out quite safely.
(for there to be…在句中做程度状语)
There being no further questions, we’ll stop here today.
(there being…做原因状语)
(3)引导主语用for there to be。如：
It is unusual for there to be no late comers today.
(4)做除for外的介词宾语，用there being。如：
He would always ignore the fact of there being such a contradiction in his inner thought.
六、虚拟语气
1.主从句谓语动词的时态
(1)掌握主从句谓语动词的规范搭配:
主句 从句
与现在事实相反 would/情态动词过去式+do were (不分人称)/did
与过去事实相反 would/情态动词过去式+have done had done
与将来事实相反 would/情态动词过去式+do should do
如：
If the doctor had been available, the child could not have died.
There is a real possibility that these animals could be frightened, should there be a sudden loud noise.
(2)区分主从句表示的不同时间概念：
主从句谓语动词所指时间不同，这叫做错综时间条件句，动词形式应根据实际情况来调整。如：
Had it not been for the timely investment from the general public, our company would not be so thriving as it is.
(主句与现在事实相反，从句与过去事实相反)
Had Paul received six more votes in the last election, he would be our chairman now.
(主句与现在事实相反，从句与过去事实相反)
(3)识别事实和假设混合句：
Your math instructor would have been happy to give you a make-up examination had you gone and explained that your parents were ill at the time.
(句子前半部分为假设情况，而“父母病了”是事实)
I would have gone to visit him in the hospital had it been at all possible, but I was fully occupied the whole of last week.
(前半部分为假设，后半部分是事实)
2.名词性从句的虚拟形式
名词性从句是指宾语从句、主语从句、表语从句和同位语从句。从句的谓语动词需用(should+)动词原形表示虚拟。考生应熟悉：
(1)下列动词做谓语时，that宾语从句中的动词用虚拟形式：
desire, advise, recommend, command, direct, order, ask, demand, request, require, insist, maintain, move, propose, prefer, urge, vote。如：
In the past men generally preferred that their wives work in the home.
I move that he be discharged for his serious mistake.
(2)下列形容词和分词做表语或补语时，that主语从句中动词用虚拟形式：
advisable, desirable, insistent, preferable, urgent, appropriate, compulsory, crucial, essential, imperative, important, necessary, obligatory, possible, probable, proper, vital, advised, arranged, commanded, demanded, desired, ordered, proposed, recommended, requested, required, suggested。如：
The board deems it urgent that these files should be printed right away.
It is essential that all these figures be checked twice.
(3)下列名词接同位语从句或表语从句时，从句中动词用虚拟形式：
insistence, preference, recommendation, suggestion, proposal, motion, desire, requirement, request, order, necessity, importance, regulation, rule, resolution, understanding。如：
John Wagner’s most enduring contribution to the study of Afro-American poetry is his insistence that it be analyzed in a religious, as well as worldly, frame of reference.
They keep telling us it is of utmost importance that our representative be sent to the conference on schedule.
3.含蓄虚拟条件句的谓语动词形式
含蓄虚拟语气是指假设条件不通过if从句表达，而是暗含在其他结构中。考生应熟悉：
(1)连词but, but that, or, or else；副词otherwise, unfortunately等表示转折假设。如：
A safety analysis would have identified the target as a potential danger. Unfortunately, it was never done.
Victor obviously doesn’t know what’s happened; otherwise he wouldn’t have made such a stupid remark.
(2)介词短语暗含假设条件，常用的有：without, but for, under more favorable conditions等。如：
But for the English examination I would have gone to the concert last Sunday.
(3)intended/meant/hoped/wished/planned或was/were +不定式完成式或had intended/meant/planned/hoped/wished
+不定式一般式暗示虚拟语气。如：
I intended to have called on you, but I was busy at that time.
(4)情态动词完成式暗示虚拟语气。如：
I should have called to make an airline reservation, but I didn’t.
4.常用虚拟形式的句型
(1)从句中动词用过去式或过去完成式表示虚拟的句型：
would rather would as soon as though suppose…
had rather would sooner as if supposing…
If only… It is (high) time that… (从句中动词只用过去式)
如：
His wife would rather they didn’t talk about the matter any more.
I’d rather you went by train, because I can’t bear the idea of your being in an airplane in such bad weather.
If I were in a movie, then it would be about time that I buried my head in my hands for a cry.
My father always talks as though he were addressing a public meeting.
(2)If it were not for… (与现在事实相反)
If it had not been for… (与过去事实相反) 相当于but for。如：
If it had not been for his help (= but for his help), we would not have succeeded.
(3)If only…谓语动词视情况选用适当的形式。如：
If only the committee would approve the regulations and put them into effect as soon as possible.
(4)lest/for fear that/in case 从句谓语用(should+)动词原形。如：
The mad man was put in the soft-padded cell lest he injure himself.
(5)whether..or…有时谓语用be的原形，引导让步虚拟从句，这种用法经常采用倒装结构。如：
Church as we use the word refers to all religious institutions, be they Christian, Islamic, Buddhist, Jewish, and so on..
The business of each day, be it selling goods or shipping them, went quite smoothly.
七、情态动词
注意情态动词完成式的用法有两方面的含义：
1.表示已经发生的情况
(1)must have +过去分词，表示对已发生情况的肯定推测，译为“(昨天)一定……”。如：
My pain must have been apparent the moment I walked into the room, for the first man I met asked sympathetically: “Are you feeling all right?”
(2)can’t/couldn’t have +过去分词，表示对已发生情况的否定推测，译为“(昨天)一定没……”。 如：
Mary couldn’t have received my letter; otherwise she would have replied before now.
(3)may/might have +过去分词，表示对已发生的事情做不肯定、可能性很小的推测，或事实上根本没发生，译为“也许……”。如：
At Florida Power’s Crystal River plant, a potentially serious leakage of radioactive water may have been unknowingly caused by an electrician.
2.表示虚拟语气
(1)needn’t have+过去分词，表示做了不必做的事，译为“其实没必要……”。如：
As it turned out to be a small house party, we needn’t have dressed up so formally.
(2)should /should not have +过去分词，表示应该做某事但实际上未做，或本不应该做但实际上做了, 译为“本(不)应该……”。如：
I regret having left the work unfinished; I should have planned everything ahead carefully.
(3)ought to have+过去分词，表示动作按理该发生了，但实际上未发生，译为“该……”，与should的完成式含义类似。如：
The porter ought to have called the fire-brigade as soon as he saw the fire in the stock, which went up in smoke.
(4)could have+过去分词，表示过去本来可以做但却未做，译为“完全可以……”。如：
What you said is right, but you could have phrased it more tactfully.
(5)may/might have + 过去分词，表示过去可以做但实际未做，译为“(那样)也许会……”。如：
It might have been better to include more punchy statistics and photos of equipment in the introduction to further assist first-time office automation managers.
3.几个情态动词常考的句型
(1)may/might (just) as well“不妨，最好”，与had better相近。如：
Since the flight was cancelled, you might as well go by train.
(2)cannot/can’t…too… “越……越好，怎么也不过分”。注意这个句型的变体cannot…over…。如：
You cannot be too careful when you drive a car.
The final chapter covers organizational change and development. This subject cannot be overemphasized.
(3)usedn’t或didn’t use to为used to (do)的否定式。
(4)should 除了“应该”一层意思外，考研大纲还规定要掌握其“竟然”的意思。如：
I didn’t expect that he should have behaved like that.
八、形容词、副词及其比较级
1.形容词的句法功能
形容词在句中做定语、表语和主语。考生应注意：
(1)以 “a” 开头的形容词如alone, alike, asleep, awake等不能做前置定语，可做表语或后置定语。
(2)某些以副词词缀 “-ly” 结尾的词是形容词，如friendly, leisurely, lovely等。
(3)下列动词既是实义动词又是系动词，注意用做系动词时，要求形容词做表语：remain, keep, become, get, grow, go, come, turn, stay, stand, run, prove, seem, appear, look。如：
All those left undone may sound great in theory, but even the truest believer has great difficulty when it comes to specifics.
2.副词主要测试其修饰作用
考生应了解：副词可修饰谓语动词、非谓语动词、形容词、副词、介词短语、整个句子。如：
This pair of shoes isn’t good, but that pair is hardly better.
(与前半句的否定意义吻合)
It’s essential that people be psychologically able to resist the impact brought about by the transition from planned economy to market economy.
Andrew, my father’s younger brother, will not be at the picnic, much to the family’s disappointment.
Most of us are of the opinion that this set of training program is among the most wisely devised ones we have seen so far.
3.考比较级时，考生应把握
(1)形容词和副词比较级的形式是否和比较连词对应出现，即是否符合原级比较及比较级的结构。如：
Do you enjoy listening to records? I find records are often as good as, or better than an actual performance.
On the whole, ambitious students are more likely to succeed in their studies than are those with little ambition.
(2)比较的成分是否属于同类事物或同类概念。如：
The number of registered participants in this year’s marathon was half that of last year’s.
Young readers, more often than not, find the novels of Dickens far more exciting than Thackeray’s.
(3)比较级的修饰语如 a little, a lot, the, any, even, far, hardly, lots, much, rather，还有表示倍数比较的词等，他们的位置是：修饰语+as…as…, 或修饰语+more…than…。如：
Smoking is so harmful to personal health that it kills seven times more people each year than automobile accidents.
“Do you regret paying five hundred dollars for the painting?” “No, I would gladly have paid twice as much for it.”
(4)下列词和短语不用比较级形式却表示比较概念：
inferior，minor，senior，prior，prefer to，superior，major，junior，preferable，differ from，compared with，in comparison with，different from，rather than。如：
Their watch is superior to all the other watches on the market.
4.最高级形式应注意的问题
(1)最高级比较范围用介词in, over, of, among。
in, (all)over用于在某一范围内的比较，如：in China, all over the world； of, among 用于在同一群体内同类事物的比较，如：among the teachers, of the four dresses。
注意：among…相当于one of…，不说among all…。这一点考生应与汉语表达区别开来。如：
Of all visible lights, red light has the longest and violet the shortest wavelength.
(2)比较级形式表示最高级意义时，比较对象的范围应用：
any other +单数名词
the other +复数名词
the others
anyone/anything else
上述词是用来将比较级结构转变成最高级意义的关键词语，切不可遗漏，否则会造成逻辑混乱的错误。如不能说：John runs faster than anyone.注意与汉语表达的不同。
5.有关比较级的特殊句型
(1)not so much…as…与其说……不如说……
The chief reason for the population growth isn’t so much a rise in birth rates as a fall in death rates as a result of improvements in medical care.
(2)no/not any more…than…两者一样都不……
The heart is no more intelligent than the stomach, for they are both controlled by the brain.
There is no reason they should limit how much vitamin you take, any more than they can limit how much water you drink.
(3)no /not any less…than…两者一样都……
She is no less beautiful than her sister.
(4)just as…so….正如……，……也……(用倒装结构)
Just as the soil is a part of the earth, so is the atmosphere.
九、平行结构
1.注意由并列连词或等立连词连接的成分在语法形式上是否相同，即都是形容词，或都是介词短语，或都是不定式，或都是动名词，或都是句子等。如：
Symposium talks will cover a wide range of subjects from overfishing to physical and environmental factors that affect the populations of different species.
In the teaching of mathematics, the way of instruction is generally traditional, with teachers presenting formal lectures and students taking notes.
2.注意比较结构中相比较的内容在语法形式上是否相同。如：
It is better to die on one’s feet than to live on one’s knees.
Despite the temporary difficulties, the manager prefers increasing the output to decreasing it.
3.其他具有并列或比较意义的短语。
(1)rather than, let alone 虽不是并列连词，但在结构上连接两个语法形式相同的成分。如：
We are taught that a business letter should be written in a formal style rather than in a personal style.
For the new country to survive, let alone for its people to enjoy prosperity, new economic policies will be required.
(2)如果平行的两个成分在形式上是介词短语，而且介词相同，一般说来第二个介词不要省略。如：
At times, more care goes into the composition of newspaper and magazine advertisements than into the writing of the features and editorials.
十、代词
1.与所指代的名词在性、数、格上是否一致
如：
Each cigarette a person smokes does some harm, and eventually he may get a serious disease from its effect.
It was during the 1920’s that the friendship between the two American writers Hemingway and Fitzgerald reached its highest point.
Our department was monitored by two supervisors, Bill and me.
2.that的指代作用
that指代不可数名词和单数可数名词(如是复数，用those)，后面通常跟有修饰语，如出现在比较结构中的that of。如：
Conversation calls for a willingness to alternate the role of speaker with that of listener, and it calls for occasional “digestive pauses” by both.
No bread eaten by man is so sweet as that earned by his own labor.
3.one的指代作用
one指代带不定冠词的单数可数名词，复数为ones。the one 指代带定冠词的单数可数名词。如：
A good writer is one who can express the commonplace in an uncommon way.
4.do的替代作用
do代替动词，注意数和时态的变化。如：
For him to be rejected, what is essential is not that his policy works, but that the public believe that it does.
十一、主谓一致问题
主谓一致是指主语与谓语在数上要一致。把握主谓一致问题，考生主要解决的是对不同结构的主语单复数的认定，进而选择适当的谓语。
1.主谓一致常出现在主谓倒装结构中。如：
Just outside the ruins is a magnificent building surrounded by tall trees.
Although a great number of houses in that area are still in need of repair, there has been improvement in the facilities.
2.主语与谓语之间有定语从句或其他结构修饰，所以距离较远，考生易误认主语。如：
The amount of pressure which the materials are subject to affects the quality of the products.
3.关系代词做主语的定语从句中，谓语的数要与先行词一致。如：
Despite much research, there are still certain elements in the life cycle of the insect that are not fully understood.
There are many valuable services which the public are willing to pay for, but which do not bring a return in money to the community.
4.动名词短语、不定式短语、名词性从句做主语，谓语用单数。如：
Buying clothes is often a time-consuming job because those clothes that a person likes are rarely the ones that fit him or her.
To understand the situation completely requires more thought than has been given thus far.
5.主语带有(together/along)with, such as, as well as, accompanied by, including, rather than 等附加成分, 谓语的数不受附加成分的影响。如：
The president of the college, together with the deans, is planning a conference for the purpose of laying down certain regulations.
6.表示时间、距离、金额、重量、面积、体积、容积等度量的名词短语做主语时，谓语用单数。
7.某些固定结构中谓语的数：
a great many + 可数名词复数 谓语用复数
many a + 可数名词单数 谓语用单数
a number of +可数名词复数 谓语用复数
the number of +可数名词复数 谓语用单数
the majority of +可数名词复数 谓语用复数
each/every +可数名词单数 谓语用单数
neither/either of +可数名词复数 谓语用单数
more than one +可数名词单数 谓语用单数
one and a half +可数名词复数 谓语用单数
the greater part of
a large proportion of
50% of
one third of
plenty of
the rest of
谓语的数与of后面的名词一致
十二、倒装结构
倒装是指句子成分不是按主语在前、谓语在后的正常语序排列，而是将谓语或谓语的一部分移到主语之前。倒装是一种修辞手段，目的是为了强调。倒装分为部分倒装和全部倒装，考试多为部分倒装。考生应掌握什么情况下需要倒装。
1.下列否定词及含有否定意义的词组修饰状语时，若置于句首，句子的主谓要部分倒装
never, no, neither, not only, hardly, scarcely, little, seldom, rarely, not until, nowhere, at no time, on no account, in no respect, in no sense, by no means, in no way, no longer, no less, no more, no sooner than, under no circumstances, in vain, still less。如：
Not only is its direct attack on their discipline, it bypasses the essence of what sociologists focus on.
Under no circumstances should we do anything that will benefit ourselves but harm the interests of the state.
2.以only修饰状语开头的句子，句子的主谓要部分倒装
only then, only at that time, only once, only in this way, only with, only through, only by, only when, only after, only because。如：
Only when you have obtained sufficient data can you come to a sound conclusion.
3.以下列副词或短语开头的句子，句子的主谓要部分倒装
often, so, well, to such a degree, to such an extent, to such extremes, to such a point，many a time。如：
So involved with their computers do the children become that leaders at summer computer camps often have to force them to break for sports and games.
4.以下列副词开头的句子，句子的主谓要全部倒装
(1)出于修辞需要，表示方向的副词：out, down, in, up, away, on。如：
Down jumped the burglar from the tenth floor when he heard someone shouted at him.
(2)出于习惯用法：here, there, now, thus, hence, then。如：
Now is your turn. There goes the bell.
(3)有时主语较长，为了使句子平衡，避免头重脚轻，主谓要全部倒装。这种情况多出现在主系表结构中。如：
Less important than ever is developing a meaningful philosophy of life.
In between these two extremes are those people who agree with the jury system as a whole, but feel that some changes need to be implemented to improve its effectiveness.
5.让步从句的倒装
(1)as引导让步状语从句，必须采用倒装结构，但不是主谓倒装，而是将被强调的内容置于句首。如：
Much as I have traveled, I have never seen anyone to equal her, in thoroughness, whatever the job.
(2)出现在句型be+主语+其他, come what may中。如：
While it’s true that we all need a career, preferably a profitable one, it is equally true that our civilization has accumulated an incredible amount of knowledge—be it scientific or artistic.
The business of each day, be it selling goods or shipping them, went quite smoothly.
Come what may, I’ll be on your side.
6.比较从句的倒装
as, than引导的比较从句中，如果主语是名词短语且较长，经常采用倒装结构(不倒装也可以)。注意：这种结构主语一般为名词，如果是代词则不倒装。如：
Hydrogen burns much more cleanly than do other fuels and is easy to produce.
Today’s electric cars cannot go as fast as gasoline-driven vehicles because the battery does not offer the same amount of energy as does gasoline combustion.
Reading is to the mind as is exercise to the body.
(1)如果谓语动词是单个实义动词，倒装时需根据人称和时态加助动词do。如：
Little did we expect that he would fulfill his task so rapidly.
(2)考生要广义理解“句首”的概念，注意从句的句首和并列分句的句首均为句首。如：
Suddenly, Gallup’s name was on everyone’s lips; not only was he the prophet of the moment, but it was generally believed that he had founded a new and most important method of prediction. |
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