1、考研英语语法 10 天速成（一）情态动词 一情态动词的现在完成式的用法 情态动词现在完成式主要有两个功能：表示已经发生的情况和表示虚拟语气。在这两个方面 must/mustnt,;can/cannt;need/neednt;may/maynt;might/mightnt;should/shouldnt;ought 等情态动词完成式表示的意思是有一定区别的 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 apparent the moment I walked into the room, for the firs
2、t man I met asked sympathetically:” Are you feeling all right?” A must be B had been C must have been D had to be （答案为 C） 2）cant / couldnt 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 my letter; otherwise she would have replied before now. A couldnt have received B ought to have received C has recei
3、ved D shouldnt have received （答案为 A） 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 Powers 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) neednt have + 过去分词，表示做了不必做的事，相当于”didnt n
4、eed to do”,译为“其实没必要”。如： You neednt have come over yourself. As it turned out to be a small house party, we so formally. A neednt dress up Bdid not need have dressed up C did not need dress up D neednt have dressed up (没有必要穿的那么正式，体现是说话者的建议，实际结果是否真的穿的很正式没有确定，答案为 D) 2）should have +过去分词，表示应该做某事但实际上未做，译为
5、“本应该”should not + have 过去分词表示本不应该做某事但实际上做了，译为“本不应该”。如： I regret having left the work unfinished; I should have planned everything ahead carefully. 我本来应该事先认真地把每件事情规划的很好，但实际上作者还是没有规划好，以至工作没有完成。 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： he porter ought to have called the fir
6、e-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”。这点与 ought/should/ have +过去分词用法相似。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 bet
7、ter to include more punchy statistics and photos of equipment in the introduction to further assist first-time office automation managers. 二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； Since the flight was cancelled, you might as well go by train. 既然航班已经取消了，你不妨乘火车吧。相当于 you had b
8、etter go by train。 2) cannot / canttoo “越越好，怎么也不过分”。注意这个句型的变体 cannotover.如： You cannot be too careful when you drive a car.驾车时候，越小心越好。 The final chapter covers organizational change and development. This subject cannot be over emphasized . 3) usednt 或 didt use to 为 used to (do) 的否定式。 4） should 除了“应该
9、” 一层意思外，考研大纲还规定要掌握其“竟然”的意思。如：I didnt expect that he should have behaved like that. 我无法想象他竟然这样做。 三情态动词被动关系的主动表达法 1 want, require, worth（形容词）后面接 doing 也可以表示被动意义。 Your hair wants cutting The book is worth reading The floor requires washing. 2need 既可以用 need to be done 也可以使用 need doing ，两种形式都表达被动的意义 The
10、house needs painting= the house needs to be painted. The watch needed repairing= the watch needed to be repaired.（二） 形容词、副词及比较级最高级 一形容词的修饰与位置 一般来说，从构词法角度来看，后缀”ly”往往是副词，但有的以 “ly结尾的词是形容词而不是副词，这点要注意；形容词一般可以在句子中做定语，表语等成份，但有些形容词在句子中只能做表语和只能做前置定语；这些形容词在修饰时候有一定的特殊性要引起大家的注意，下面做了一下归纳： 1 以-ly 结尾的是形容词而不是副词： co
11、stly 昂贵的 lonely 孤独的 deadly 死一般的 lively 活泼的 friendly 友好的 silly 傻气的 kindly 热心肠的 likely 可能的 leisurely 悠闲的 ugly 长得丑的 brotherly 兄弟般的 monthly 每月的 earthly 尘世的 2 只作以 “a”开头的很多形容词只能做表语： afraid 害怕的 alike 相象的 awake 醒着的 alone 单独的，惟一的 alive 活着的 ashamed 羞愧的 asleep 睡着的 aware 意识到的、察觉到的 well 健康的 content 满意的 unable 无能
12、的 3 只作前置定语的形容词 earthen 泥土做的，大地的 daily 每日的 latter 后面的 golden 金子般的 weekly 每周的 inner 里面的 silken 丝一般的 monthly 每月的 outer 外面的 wooden 木制的 yearly 每年的 elder 年长的 woolen 毛织的 former 前任的 mere 仅，只不过 only 惟一的 sheer 纯粹的 very 恰好的 little 小的 live 活的 4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
13、, 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. 二形容词与副词的比较级与最高级 1 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?
14、I find records are often , or better than an actual performance. Aas good as Bas good Cgood Dgood as 在这里 as good as 比较连词与 better than 比较连词同时出现时候，不能省略任何一个介词。答案为 A 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，既是说
15、比较要具有可比性。如： The number of registered participants in this years marathon was half . A of last years Bthose of last years Cof those of last year D that of last years （前后相比的应该是今年和去年注册参加的人数“the number of”故代替它的应该是单数指示代词“that”，而不能选择B，those 是指代 participants，不是同类对比，答案为 D。 Young readers, more often than not
16、, find the novels of dickens far more exciting than Thackerays. 3)比较级与倍数词关系及其位置 原级结构中可插入表达倍数的词，表示为“为.若干倍”, 当与有表示倍数比较的词在一起时候等，他们的位置是，倍数词+asas,或倍数词 +morethan，但 again 一般放在原级词之后，即 “as+原级again+as”.如： Smoking is so harmful to personal health that it kills people each year than automobile accidents. A seve
17、n more times B seven times more C over seven times D seven times (答案为 B) “Do you regret paying five hundred dollars for the painting?”“No, I would gladly have paid for it.” A twice so much B twice as much C as much twice D so much twice (答案为 B) My uncle is as old again as I am 4）下列词和短语不用比较级形式却表示比较概念
18、： 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 to all the other watches on the market. A superior B advantageous C super D beneficial （答案为 A） Prior to his departure, he a
19、ddressed a letter to his daughter. (1986 年考研题) 5） “比较级and +比较级”或“more and more/less and less +原级”以及“ever, steadily, daily 等副词比较级”结构表示“越来越”的意思，与这类结构搭配的常用动词有 grow, get ,become 等。前面两种情况更多地出现在进行时态中，注意的是这三种情况引导的比较级后面都不需要用 than.如： Things are getting worse and worse. As I spoke to him he became less and le
20、ss angry. Her health was becoming daily worse The road got ever worse until there was no road at all = the road got worse and worse. 6)比较级前面可以用 even, still, yet ,all the (more)等修饰语用以加强语气，表示“更加”的意思。如 Today it is even colder than yesterday I have yet more exciting news for you 7) 有关比较级的特殊句型： A): not s
21、o muchas与其说不如说 The chief reason for the population growth isnt so much a rise in birth rates a fall in death rates as a result of improvements in medical care. A and B as Cbut D or 人口增长的主要原因与其说是因为出生率的提高，还不如说是因为医疗的进步带来的死亡率下降的结果。答案为 B B) no/not any morethan两者一样都不 The heart is intelligent than the stom
22、ach, for they are both controlled by the brain. A not so Bnot much Cmuch more D no more （心脏和胃两者都不具有智力，他们都受大脑控制。答案为 D） There is no reason they should limit how much vitamin you take, they can limit how much water you drink. A much more than B no more than C no less than D any more than （答案为 D） C)no/n
23、ot any lessthan两者一样,都 注意基本上与 no/not any morethan 意思相反 She is no less beautiful than her sister.她和她姐姐一样漂亮 D)just as so 正如 ， 也（用倒装结构） Just as the soil is a part of the earth, the atmosphere. A as it is B the same is C so is D and so is （答案为 C） 2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)
24、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： all visible lights, red light has the longest and violet the shortest wavelength. A Among B Of CFor DTo 答案为B 2)比较级形式表示最高级意义时，比较对象的
25、范围应用： any other +单数名词 the other +复数名词 the others anyone/anything else 上述词是用业将比较级结构转变成最高级意义的关键词语，切不可遗漏，尤其是 other，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。 3）most 可以用来修饰形容词或副词，意思相当于 very，用法区分单复数，但不能用定冠词 the，如：a most interesting book, most expensive restaurants， 要注意与 “the +形容词最高级of + 名
26、词”的结构表示的最高级的区别，如： He spoke in the warmest of voices They have been most kind to me Basketball is the most popular of sports in this country. Chinese is the most difficult of language Chinese is a most difficult language 三不用比较级和最高级的形容词： 1）表示颜色的有：white, black 2）表示形态的有：round, square, oval, circular, tr
27、iangular(三角形) ，level 3)表示性质和特征的有：atomic, economic, scientific, sonic, golden, silvery, woolen, earthen, silent, full, empty, sure, dead, deaf, blind, lame, rainy 4)表示状态作表语的有：afraid, asleep, alive, ashamed, alone, aware, alike 5)表示时间、空间和方位的有：daily, weekly, monthly, annual, present, front, back, forwa
28、rd, backward, east, west, south, north, left, right, final 6)表示极限、主次、等级的有：maximum, minimum, utmost, main, major, chief minor, superior, inferior, senior, junior, super, favorite 7)含有绝对概念的有：absolute, entire, whole, total, perfect, excellent, thorough, complete. 四平行结构与比较级 平行结构很多情况下是由形容词或副词的比较级或者暗含比较意味
29、的连词引导的。如： The ideal listener stays both inside and outside the music at the moment it is played and enjoys it almost as much as the composer at the moment he composes. 大多数情况下平行结构都是具有一定的比较含义的，有的是递进对比 not onlybut (also) ;preferto;rather than有的是同类对比：and ;but；or；both and；eitheror; neithernor. 平行结构测试时候注意
30、以下几点： 1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 ones feet than . Aliving on ones knees Blive on ones knees Con ones knees Dto live on ones knees (答案为 D) Despite the temporary difficulties, the manager prefers increasing the output to decreasing it. 2其他具有并列或比较意义的短语也可引导平行结构。 1）rather than, let a
31、lone 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 in a personal style. Arather than Bother than Cbetter than Dless than 答案为 A For the new country to survive, for its people to enjoy prosperity, new economic policies will be required. A to nam
32、e a few Blet alone Cnot to speak Dlets say （答案为 B） 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. （三）代词及其指代一致 一代词的指代 1that 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
33、） ，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.这里 that 指代前面的 the role。 No bread eaten by men is so sweet as that earned by his own labor. 2one 的指代作用 one 指代带不定冠词的单数可数
34、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 who can express the commonplace in an uncommon way. A that Bhe Cone Dthis 答案为C 3do 的替代作用。 do 代替动词，注意数和时态的变化。如： For him to be re-elected, what is essential is not that his policy works , but that the public believe that it does. 二代词指代一致问题 代词指代一致是指
35、指代的名词在性、数、格上是否一致，或者所照应的名词词组在某些方面保持一致。 Each cigarette a person smokes does some harm, and eventually he may get a serious disease form its effect. 这里 he 指代前面的 person。 It was during the 1920s that the friendship between the two American writers Hemingway and Fitzgerald reached its highest point. 这里 it
36、s 指代前面的两人的 friendship。 Our department was monitored by two supervisors, Bill and me. 这里 me 必须用宾格形式。 代词指代一致必须注意以下几个原则和规律： 1邻近和靠近原则 由 either or, neithernor, not onlybut (also)连接先行词时候，如果两个先行词在数和性上保持一致，就用其相应的一直的人称代词；如果两个先行词在数或性上不一致，人称代词一般与邻近的先行词在数和性上保持一致。 Neither Mary nor Alice has her key with her. Nei
37、ther the package nor the letters have reached their destination If either David or Janet comes , he or she will want a drink 2当 no one, everyone, each,everybody, none ,anybody, someone, somebody 用作主语或主语的限定词时候,或者 anything, nothing, something everything 等不定代词作主语时候，其相应的代词一般按照语法一致原则，采取单数形式。如： Everybody
38、talked at the top of his voice. None of the boys can do it , can he? Everything is ready, isnt it? 3当主语为复数形式，后跟 each 作同位语时，如果 each 位于动词之前，其后的代词或相应的限定词用复数形式；如果 each 位于动词之后，其后的代词或相应的限定词用单数形式。如： They each have two coats we are each responsible for his own family 4由 and 连接两个先行词，代词用复数 如：the tourist and b
39、usinessmen lost their luggage in the accident （四） 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。解决主谓一致主要遵循三个原则： 语法一致原则 意义一致原则 就近一致原则 很多情况下应该综合利用这三个原则来处理主谓一致，在不同情况下可能应用三个原则中的不同原则，具体应用哪种原则应该视具体情况而定。总结如下： 一谓语动词用单数的情况 1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-con
40、suming job because those clothes that a person likes are rarely the cones that fit him or her. (1987 年考研题) To understand the situation completely requires more thought than has been given thus far. 2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。 Two weeks was too long Five times five makes twenty five 3一
41、般用 and 连接的两个单词或短语做主语时候，谓语用复数，但是下面用 and 连接的主语表示一个概念，谓语用单数：law and order 法制 soap and water 肥皂水 a cup and saucer 茶杯碟子 fork and knife 刀叉 the needle and thread 针线 trial and error 反复尝试，不断摸索 horse and carriage 马车 time and tide 岁月 bread and butter 奶油面包 the ebb and flow 盛衰，潮涨潮落 如： If law and order not preser
42、ved, neither the citizen nor his property is safe. A. is B. are C. was d. were 答案：A。 4表示学科和某些疾病名称的名词是复数形式，作主语时候谓语动词用单数形式 Linguistics is a branch of study on human language. 5有些名词形式上是复数，意义上是单数，根据意义一致原则动词用单数 The chaos was stopped by the police The news is a great encouragement to us A series of debate
43、s between the lectures was scheduled for the next weekend. 6用 and 连接的成份表示一个单一概念时候，动词谓语用单数形式 Bread and butter is our daily food Time and tide waits for no man 二 谓语用复数情况 1 由 and, both and, 连接的并列主语，和 both ,a few, many ,several 等修饰语后面谓语动词通常用复数形式。 Few people know he and I were classmates when we were at
44、college. 2集体名词 police, public, militia, cattle ,class ,youth 后常用复数形式的动词 The Chinese people are brave and hardworking The cattle are grazing in the sunshine 3当表示民族的词与冠词合用当主语，谓语动词用复数形式 The Japanese were once very aggressive 4某些形容词前面加定冠词表示一类人，做主语时候，谓语动词用复数 The rich are not always selfish 5不可数名词作主语，其前有表
45、示数量的复数名词修饰时，谓语动词用复数 Three million tons of coal were exported that year 三谓语动词可用单数，也可以用复数的情况 1 就近一致原则 这种情况下，谓语动词使用单数还是复数取决于最靠近该动词的主语的单复数，存在这种情况的主要由以下几种可能： 1） 由连词 eitheror; neithernor; whether or;not onlybut (also) ;or 等连接的并列主语 Neither money nor fame has influence on me Not only you but also he is wron
46、g 2) 在倒装结构中，谓语动词与后面的第一个主语一致 Blocking the open-sided porch, framed by the enveloping fog, stands a tall grave-faced policeman. 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 improvem
47、ent in the facili 2 主语带有（together/along）with, such as, accompanied by, as well as, no less than, except, besides, with, combined with, in addition to , including, together with 等等附加成分，谓语的数不受附加成分的影响仍然与主语保持一致 Professor Taylor , with six of his students ,is attending a conference in Boston organized to
48、 compare current practice in the United States with those of other nations. The president of the college, together with the deans, is planning a conference for the purpose of laying down certain regulations. (1981 年考研题) 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. （1996 年考研题） 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. （1990 年考研题） 4一些表示数量的短语与名词连用时候，谓语动词的数取决于名词的数，名词是复数，谓语动词用复
