专四语法重点总结

1、专四语法重点总结一、代词、名词、数次1.在使用两个以上的人称代词时 顺序是:第二人称 第三人称 第一人称2. everyone后面不可以跟of短语every one就可以3.以名词/动名词+介词(短语)/形容词/副词/动词不定式 构成的复合名词， 它的复数形式是将作为主要部分的名词或动名 词变为复数 直接来源于短语或以可数名词结尾的复合名词的复 数形式是将最后一个构词部分变为复数以man或者woman名词构成的复合名词的复数形式是将两个组成部分全变成复数 以不可数名词结尾的复合名词无复数形式 如：homework4.物质名词一般不可数， 但用于表示各种不同品种时 几乎 都可做可数名词女口：di

2、fferent teas5.当抽象名词前后有修饰语表示某一种或某一方面的 抽象概念时 其前可加a/an6.名词所有格要点：必须用s的场合1 )s属格用于表示时间，度量衡，价值的名词之后2 )作为一个整体的词组在最后一个词加s3)人或物为两人共有，在第二个名词后加s4 )当所有格后面的名词是人们熟悉的建筑物如商店，住家，教堂，医院等，此名词常省略5)复合名词在最后一个词后加s6)当被修饰的名词后有同位语时，必须用s7)当用来表示类别或属性时，要用s childrens shoes儿童鞋必须用of的场合1)名词后跟有后置修饰语或同位语时2)以定冠词加分词或形容词表示一类人时7.如果dozen/sc

3、ore/hundred/thousand/million前有基数词以表示确切数目时，都不能用复数形式如果用来表示很多有不确切的数目时，须用复数，而且后面加of8.表示顺序的两种方式：1)名词+基数词，不用冠词，如Chapter four2)the+序数词+名词女口the Fourth Chapter9.倍数增减的表示法1)倍数+形容词/副词比较级+than2)倍数+as+形容词/副词+as3)倍数+名词4)动词+百分比或倍数5)动词+to+数词6) double/triple/quadruple+名词7)动词+by+数词/百分比/倍数10.分数分子为基数词，分母为序数词 分母除了在分子为一的

4、其他情况下为复数11.百分比后接名词时加of二、形容词、副词1前置修饰语的排列顺序可以置于冠词前的形容词(all both such) -冠词，指示形容词，所有格形容词，不定形容词(a an the this your his anysome)-基数词(one )序数词(first)-表示性质，状态，质量的形容词(good useful)表示大小，长短，形状的形容词表示年龄，新表示国籍，产地，区域的形容词分词2后置修饰语 由前缀a-构成的形容词3形容词修饰由some-,any-,every-,no-,-body,-one,-thing等组成的复合不定代词时，必须后置4enough作形容词修饰名

5、词时既可放前又可放后，但当它作副 词修饰形容词或副词时，必须后置5.有些形容词本身就有比年长，比优等的意思这些形容词后面用介词to而不用than6much too作为副词短语修饰形容词或副词，不修饰名词7more不能用来修饰比较级8与名词连用的more of a . ./ as much of a. / more ofa.意为更像9as much of a意为称得上，less of a意为算不上10none other than（不是别人，正是）=no other than11any/sone/every与other连用时，其后若用可数名词，旧，温度的形容词表示颜色的形容词表示材料，用做形容词

6、的名词动名词，般为单数三、情态动词、虚拟语气1can用于否定句cannot(help)but表示不能不，只能(but后跟不带to的动词不定式)2must表示禁止，一定不要时的否定式为mustnt当它表示 有把握的推断时 意为一定 准是时 它的否定形式为cant3need doing=need to be done这个句型表示被动意味4need not have done sth表示本来没有必要做某事 (经常考)虚拟语气1It is (high/about/the)time.谓语动词用过去式 指现在或将来的情况 表示早该做某事而现在已经有点晚了2It is the first(second/th

7、ird)time后的that从句中，谓语动词要用完成体来表示一种经验3as if/though的虚拟要点1)对当时事实的假设，从句谓语用过去式，be动词一律用were2)对过去事实的假设，从句谓语用过去完成式3)对未来事实的假设，从句谓语用would+动词原型五、比较级比较等级的含义:英语中形容词与副词有三个比较等级， 即原级， 比较级和最高级。一般来说， 表示等于时用原级。Eg. Im just as busy today as I wasyesterday.表示二者的比较时用比较级eg. Im much busier today thanI was yesterday.表示“最”时用最高级

8、Eg. That was the busiest day of my life.存在句形容词与副词比较等级的构成构成 原级 比较级 最高级单音节词尾加er, est great greater greatest单音节词尾e,加r, st fine finer finest闭音节单音节词尾只有一个辅音字母,双写big bigger biggest辅音字母加er,est少数以y,er,ow, ble结尾双音节词尾加er,est happy happier happiest（y前为辅音字母去y加clever cleverer cleverester,est）其它双音节词和多 音节词，前加more,

9、difficult more difficult most difficultmost不规则变化副词比较等级的构成副词比较等级的构成大致与形容词比较等级的构成相同， 但以后 缀ly结尾的副词用more和most。hard hardest hardestearly earlier earliestquickly more quickly most quickly不规则变化 形容词与副词比较等级的基本用法A.基本形式“as +原级+as” 结构eg. Hes as tall as I.B.否定的同级比较常用not asas或not soaseg. He does not smoke so heav

10、ily as his brother.C.变体1) as + much/many +名词+ as2) as +形原级+ a +名词+as3) as +形+不可数名词+ as4)名词复数+as +形+ as5) the same as/ be similar to比较级A.基本结构“比较级+than”结构eg.He is taller than I .She sees me more often than she sees her brother.B.变体1)形比较级+名+ than2）名+形比较级+ than3)the +形比较级+ of + the two4)superior/ inferi

11、or to最高级A.常用“the +最高级+比较范围”eg. This is the best picture in the hall.He sings the best in the class.B.变体1) morethan any other2) Not+比较等级关于比较结构用法的补充说明1) morethan是而不是，与其说是不如说是eg.She is more been than wise.He is more a writer than an artist.2)not so muchas与其说是不如说是eg. It wasnt so much that I disliked her

12、 as that I just wasntinterested.3) not more/er than与no more/er thaneg.He is no richer than I= as poor asHe is not richer than I4) more and moreeg. He is becoming fatter and fatter.5) . The morethe moreeg. The harder she worked, the more progress she made.6)more than多于eg. More than 1000 people attend

13、ed the meeting.7)more than不止， 超过eg. She is more than pretty.8)more than简直不eg. My trip to Beijing is more than sightseeing.六、并列结构两个或两个以上意义相关、层次相同、句法功能也相同、并由并列连词或其他并列手段连接起来的语法结构序列叫做并列结构。1.并列结构的各种形式1）词与词的并列you and me2）词组与词组的并列a teacher and a stude nt3）分句与分句的并歹Uyou can go or you can stay with us.2.并列结构的

14、连接手段1）并列连词2）标点符号3）并列结构的插入语在最后一个项目之前插入一个词语， 使这个项目处于更加突出的地位。4）并列结构的对称组合成对组合的办法使整个结构更加紧凑。3.并列连词的意义和用法1.以and为代表的表示语义引申的并列连词and,botha nd,not onlybut also, notnor,neithernor等。这一类并列连词在语义上表示其连接的成分是对前项的补充和引申，包括肯定和否定两种意义的引申And除表示语义增补外还有其他意义.还有一些and连接的语法结构形似并列结构实际并非并列结构Eg. This room is nice and warm. = ( nicel

15、y warm.) Ill goand see my friend. = ( go to see)2.以or为代表的表示选择的并列连词这类连词包括or和eitheror3.以but为代表的表示语义转折和对比的并列连词这类连词包括but, notbut, while, whereas, only, yet.4.补充说明：1) bothand只连结成分不连接句子；只连对等结构Eg. Both the student and the teacher are pleased to hearthe news.2) not onlybut also连结成分和连接句子；只连对等结构Eg. Not only I

16、 but also he will take part in the meeting.Not only did he help me, but also he sent me home.3) eitheror连结成分和连接句子；连对等结构或不对等结构Eg. Either you or I am going to shanghai.He can either stay at home or leave.He has either gone to the movies or ( gone to ) the theatre.4) neithernor连结成分和连接句子；连对等结构或不对等 结构Eg.

17、 He neither likes fiction nor (likes) poetry.并列连词与连接性状语And与moreover;furthermore whats moreEg. He is a good teacher and a good friend.He is a good teacher. Moreover, he is a good friend.but与howeveror与otherwiseSo与as a result , consequently .七、存在句(There be)存在句的结构特征存在句的结构模式是：There + be + NP + Locative E

18、xpression (+ Temporal Expression)存在句的引导词There在句中位于主语位置， 实义主语是随后的名词词组，There起形式主语的作用，在疑问句中， 它和操作词倒装。注意存在 句的引导词There和句首状语There的区别。存在句的实义主语实义主语的名词词组通常是非确定特指，即通常带有不定冠词、 零冠词及其他非确定意义的限定词, some, any, many, much, a lot of, en ough, little基本句型凡带有非确定特指的名词词组， 一般都可用There存在句转化。存在句的谓语动词存在句的谓语动词主要是动词be的某种形式，分限定形式和非

19、限定形式。限定形式：一般现在时、一般过去时、现在完成体、过去完成体 和情态助动词+不定式。除be外， 某些表示存在意义的不及物 动词如：exist, remain,occur, stand, lie.等，能用于there存在句。地点状语前移，there可省。Eg.There can be very little about his guilt.There are many desks in the classroom.There used to be a hospital round the corner.There appears to be no doubt about it.There

20、stands a house behind the tree.Behind the tree (there )stands a house.八、存在句的非限定形式1)存在句的非限定形式there to be和there being结构2)there to be和there being结构用法与区别there to be：作for介词补语作动词(except, want, like, prefer, hate)的宾语eg.They planned for there to be another meetingMembers like there to be plenty of choice.th

21、ere being :作除for外的介词的补语 作主语和状语eg.John was relying on there being another opportunity.There being a bus stop so near the house is a good advantage.存在句的非限定形式与限定形式的转化eg. For there to be so few people in the street was unusual. = It wasunusual that there were so few people in the street.九、it句型1. Basic s

22、tructure:There + be + subject + adverbial2. Non-finite structureThere to be - for ; VerbThere being- in,on.;noun; adverbialThere being a lawn extends from the river to the house.There is a lawn extending from the river to the house.There extends a lawn from the house to the river.From the house to t

23、he river lies a lawn.From the wall comes the voice of the doctor.It:1. Reference it:Beijing is a big city. It is the capital of China.2. Non-reference itA. Empty itB. Anticipatory itC. Cleft itIt句型包括由“非指代性it”作型式主语的三种句子：第一种 是以it作形式主语的表示时间、距离、天气等意义的句子；第 二种是以it作先行主语的句子； 第三种是以it作引导词的分裂 句。Empty it虚义it是一种

24、非指代性it，以区别于人称代词it，常用作没有 具体意义的主语，出现于表示气候、天气、温度、时间、地点、距离等意义的句子中。也用来表示一般的笼统的情况。 也用于一些结构及习惯语中Eg.Its fine today, isnt it.It was dull when Mary was away.It looks as if the college is very small.Hop it. (Go away)Anticipatory itit用来充当形式主语或形式宾语，后面的真正主语或真正宾语 通常是不定式结构、动名词或名词性分句。It的这种用法叫作 先行it。eg.It is quite im

25、portant for us to form a good studying habit.I think it important to finish the task in time.it用来充当形式主语，后置的真正主语往往可以取代先行it的 位置，出现在句首。Eg. To form a good studying habit is quite important for us并非所有先行it结构都可转化，下边句子只能作如下转化eg.It seems that John is not coming after all.John doesnt seem to be coming after a

26、ll.Cleft it :Task1.句子的基本结构2 .分裂句的本质3 .分裂句的结构4 .假拟分裂句句子结构主语+谓语已知信息新信息末端中心末端重心Eg. I told him the news yesterday.分裂句的本质Eg. I told him the news yesterday.Eg. It is I that told him the news yesterday分裂it分裂句是以it为引导词的强调句型。 它的结构形式是：It +be的 一定形式+中心成分that /who分句。通过这种结构可以强调 除谓语动词以外的大多数句子成分。 说话人通过分裂句分别强调 主语、间接宾

27、语、直接宾语、状语，使之成为信息中心。分裂句 中的谓语可以采取复杂形式Eg.It is I who am to blame.It mayhave been at Christmas that John gave Mary a handbag.It was in Shanghai that I got主语补语通常不作分裂句的中心成分。 宾语补语可以这样用。my Masters Degree.*It is beautiful that she is.It is Chairman of the committee that they elected him.十、动词的强调形式Do的适当形式Eg. I

28、 Do give you the book.拟似分裂句Pesudo cleft要强调谓语动词， 就得采用另外一种强调句型。 这种句型叫作拟 似分裂句。拟似分裂句的主语通常是由what引导的名词性分句，分句的主 动词通常是do的一定形式。分句的主语补语根据主动词do的适 当形式而采取相应的形式。拟似分裂句可采用下列几种形式what分 句 be +动 词 的 不 定 式eg. He gave her abook.-What he did was (to) give her a book.what分句be +动词的分词He will be taking a plane toBeijing-What

29、he will be doing is taking a plane to BeijingHe has finished his homework.-What he has done isfinished(finish/to finish) his homework.Pesudo - cleftI gave him a letter.What I did is give him a letterdo/did/does-dodoing - doingdone -done what分句be +名词词组 名词词组be+ what分句Eg. He gave her a book.What he gav

30、e her was a book.A book was what he gave her.一、附加疑问句Tag QuestionHe must be a clever boy, _?He must be studying in the room,_ ?He must have worked hard last night, _?He must have finished his work, _?He said he would go with Mary, _ ?If he had worked hard, he would have passed the examination,?I thin

31、k he is a good student, _?I dont think he is a good student, _?You have a new book, _?He had to go now,_ ?I have read the book , _ ?Mary has milk for breakfast everyday,_ ?We used to live in the country,_?We never used to live in the country, _?There beThere is a book on the desk.There is a book and

32、 two pens on the desk.There _ ( come ) the last bus .There _ (go) the last spoon of ice-cream.并列结构bothand只连接词与词组Both.and , not onlybut also必须连接对等结构eitheror ; neithernor可连接不对等结构I neither like novels nor(like) poems.十二、倒装倒装固定语序主语+谓语后置1句尾焦点和句尾重心2关键词语的后置前置与倒装Not onlybut also; either接词与词组，还可连接句子or ; neit

33、hernor不但连1)不引起倒装的前置 不引起倒装的前置成分通常是宾语、主语补语和宾语补语。2)引起倒装的前置:主语补语前置时，如主语较长或结构较复杂，就会引起倒装。 前置宾语由not a +名词或not a single +名词，就会引起 倒装A horrible mess I have made of it.Books, I need.Happy indeed I amHappy indeed are those who got the tickets to Beijing.倒装某些状语的前置会引起倒装:全部倒装和部分倒装a.句首状语为方位词或拟声词，谓语动词为go, come等表示位 置

34、转移的动态动词时， 通常用全部倒装， 主语为代词，不用倒装。Eg. Lower and lower he bent.b.当句首状语为表地点的介词词组时，也会引起全部倒装。Eg. From the wall comes the voice of the doctor.c.当句首状语为否定词或带有否定意义的词语时，一般引起局 部倒装。Eg. Nowhere else could you find so cheap books.d.当句首状语为only +副词, only +介词词组, only +状语 分句构成，也可引起局部倒装。Eg. Only through sheer luck did he

35、 manage to get some tickets.e.以关联连词so (that)开头的句子，引起局部倒装。so+形 容词是主语补语的前置；so+副词是状语的前置。Eg. So small was the mark that I could hardly see it.f.当方式状语、频度状语等移至句首时， 有时也引起局部倒装。 也可不用倒装。Eg.Many a time has Mike given me good advice.Slowly and impressively he rose from his seat.十三、不定式做定语(1)被修饰的名词前有序数词、 形容词最高级或n

36、ext, last, only, not a, the,very等限定词时，该名词用不定式做定语。如：the first woman to set footon the moon第一个登上月球的 女性。(2)如果其动词要求不定式做宾语，相应的名词一般用不定式做 定语。如：tendency to doftend to do, decision to dofdecide to doThis book is an attempt to help you use English and recognize how it isused.(3)如果其形容词形式要求接不定式做补语，相应的名词一般用不定式做定语。如：ambition to do“干.的雄心” f be ambitious to do“有雄心干”curiosity to do“对. 的好奇 心fbe curious todo“对.好奇”ability to do“做.的能力”fable to do“有能力做.”According to Darwin, random changes that enhance a species abilityto survive are naturally selected and passed on to