考博英语语法详解（一）

英语语法是针对英语语言的语法进行的研究。语法是组词造句的规则，是把合适的词放进合适位置的艺术，语法可分为两大部分：词法和句法。词法包括各类词的形态及其变化，句法主要讲句子的种类和类型，句子成分以及遣词造句的规律。由此可见学好语法对考博英语的重要性，在此，整理了考博英语必备语法知识点，希望考生们学以致用，考博英语取得好的成绩。一考博英语语法：独立主格     　　　　
    1. 充当句子的状语。
　　2. 有自己的主语，同句子的主语不一致。
　　3. 名词(代词，形容词，副词，介词)+ 分词
　　4.　With + 名词 (代词) + 分词 (形容词)
　　例：a) It being raining, I decided to stay at home.
　　b) Speech having been delivered, discussion started.
　　c) he entered the room, with his hands open(holding a rifle).
　　真题剖析
　　(1995)   45   cliffs no longer crumbling, the beaches are　 46　 of the material which would　47　feed them.
　　45. A. For
　　B. As
　　C. With
　　D. Because
　　练习：
　　Do what you need to do to keep the wolf __7__ from the door, the world __8__ your thesis adviser, team leader, or laboratory director. Then use the rest of your time, perhaps at night or on the weekends, to do __9__ you really want to do.
　　8. A. is
　　B. having
　　C. being
　　D. be

二考博英语语法：虚拟语气　　虚拟语气
　　1. (should)+动词原形
　　It +be动词+形容词(-able)(essential, odd, vital, absurd, regrettable, desirable…)+that从句
　　It +be动词+名词(pity,shame…)+that从句
　　It +be动词+过去分词(ordered, begged, voted, moved…)+that从句
　　部分名词/动词(表示建议，劝告，决定等) +that从句
　　2. It’s (high, about) time that +动词过去式
　　would rather +动词过去式
　　真题剖析
　　(1997) … I wouldn’t be truthful if I　47　say that teaching is hard work . …
　　47. A. do
　　B. did
　　C. don’t
　　D. didn’t
　　(1993)…The Cairo newspapers the next day carried banner headlines about the student demonstration　52 , and they　　53　that the professor be sent home.
　　53. A. ordered
　　B. pleaded
　　C. decided
　　D. demanded
　　练习：Years ago the experts warned us that the car-ownership explosion would demand a lot more give-and-take from all road users. It is high time that 　　we__15__ this message to heart.
　　15. A. took
　　B. would take
　　C. will take
　　D. should take
　　(2003.3) It is edifying, and it is a source of inner satisfaction even __54__ other facets of life prove disappointing.
　　(even if other facets of life should prove disappointing.)
　　54.A. shall
　　B.will
　　C.would
　　D.should

三考博英语语法:非谓语动词　　动名词、分词、不定式。
　　主动或被动。(doing/done, to do /to be done)
　　发生在谓语动词之前还是之后。(doing/ having done /having been done, to do/to have done /to have been)
　　To在什么情况下作介词，什么情况下作不定式引导词。
　　真题剖析
　　(2000) … In the inner cities of America, newspapers regularly report on newborn babies　60　into garbage bins by drug-addicted mothers.
　　60. A. dropped
　　B. to drop
　　C. dropping
　　D.drops
　　(2001.3) A heroin addict, for instance, leads a　59　life: his increasing need for heroin in increasing doses prevents him from working, from maintaining 　　relationships, from developing in human ways.
　　59. A. destructive
　　B. dissatisfied
　　C. damaged
　　D. derivative

四考博英语语法：主谓一致　　1. 整体及抽象概念作主语，谓语通常用单数形式。
　　How you got there doesn’t concern me.
　　Growing vegetables needs constant watering.
　　2.　表示时间、距离、重量、容量、价值等概念作主语，谓语多用单数。
　　Eight hundred dollars is enough to live on.
　　3. 以-s结尾的专有名词(linguistics, economics, measles, diabetes等)，谓语通常用单数形式。
　　4. “分数或百分数+主语”，谓语跟主语保持一致。
　　Two thirds of the villages are flooded (the area is under water).
　　5. 不定代词(one, each, everyone, everybody, everything, no one, nobody, nothing, anyone, anybody, anything, someone, somebody, something等)作主语，谓语用单数。
　　Everyone knows that you’ve come here.
　　If anybody wants to see me, let them wait till I come back.　　(--thing 的情况例外)
　　6. 谓语同并列主语的第一部分保持一致(as well as, with, along with, together with, as much as, accompanied by, besides, but, except, in addition to, like, more than, no less than, rather than, including等)
　　He no less than John is interested in literature.
　　7. 谓语同最贴近的主语保持一致。(or, either…or, neither…nor, not only…but also, not…but, partly…partly等)
　　Either my father or my brothers are coming.
　　8. each,every,many a, no …+主语，谓语用单数。
　　Many a student and teacher has been to the Great Wall.
　　真题剖析
　　(2000) …Mexico City already 52 twenty million people and Calcutta twelve million. According to the World Bank, 53 of Africa’s cities are growing by 10% a year,　54 of urbanization ever recorded.
　　53. A. none
　　B. few
　　C. any
　　D. some

五考博英语语法：倒装　　全部倒装
　　1. “There (Here) +be+主语”
　　There stand big buildings in this district.
　　Here on the desk lies a pile of books.
　　2. 单个副词(in, out, now, up, down, away, off, then)位于句首(短语动词不可拆，如it blew up.)
　　In came the boss. / Ahead sat an old man.

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