专四语法重点总结

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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

2、数名词如：different 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 children s 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

3、类人时7.如果 dozen/score/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 +名词如 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

4、+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（allboth such) -冠词，指示形容词，所有格形容词，不定形 容 词 （ aanthethisyourhisanysome)-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，新旧，温度的形容词 -表示颜色的形容词-表示国籍， 产地，区域的形容词-表示材料，用做形容词的名词-动名词，分词2

5、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 than6 much too作为副词短语修饰形容词或副词，不修饰名词7 more 不能用来修饰比较级8与名词连用的more of a . ./ as much of a. / more of a.意为更像 9 as much of a 意为称得上，less of a意为算不

6、上10 none other than(不是别人，正是）=no other than11 any/sone/every与 other连用时，其后若用可数名词，一般为单数三、情态动词、虚拟语气1 can 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mustn t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can t3 need doing=need to be done这个句型表示被动意味4 need not have done sth表示本来没有必要做某事（经常考）虚拟语气1 It is (h

7、igh/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2 It is the first(second/third)time后的 that从句中，谓语动词要用完成体来表示一种经验3 as 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. I m just as busy today

8、as I was yesterday.表示二者的比较时用比较级eg. I m much busier today than I was yesterday.表示“最”时用最高级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,e

9、st happy happier happiest(y前为辅音字母去y 加 clever cleverercleverester,est）其它双音节词和多音节词，前加more, 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

10、 + 原级 +as” 结构eg. He s as tall as I.B否定的同级比较常用not asas 或 not soaseg. He does not smoke so heavily 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 of

11、ten 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/ inferior 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) more than 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

12、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 as that I just wasnt interested.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 fatte

13、r.5). The morethe moreeg. The harder she worked, the more progress she made.6） more than多于eg. More than 1000 people attended 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

14、构序列叫做并列结构。1. 并列结构的各种形式）词与词的并列you and me）词组与词组的并列a teacher and a student）分句与分句的并列you can go or you can stay with us.2. 并列结构的连接手段）并列连词）标点符号) 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。) 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以 and 为代表的表示语义引申的并列连词and, bothand, not onlybut also, notnor, neithernor 等。这一类并列连词

15、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. Thisroom is niceand warm. = ( nicelywarm.) I llgo and see my friend.= ( goto see)以 or为代表的表示选择的并列连词这类连词包括or 和 eitheror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

16、连接句子；只连对等结构Eg. Both the student and the teacher are pleased to hear the news.2) not onlybut also连结成分和连接句子；只连对等结构Eg. Not only I 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

17、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. 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

18、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 Expression (+ 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

19、、零冠词及其他非确定意义的限定词 , some, any, many, much, a lot of, enough, 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 ab

20、out 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 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 t

21、o be：作 for介词补语作动词（ except, want, like, prefer, hateeg.They planned for there to be another meetingMembers like there to be plenty of choice. ）的宾语there 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

22、式与限定形式的转化eg. For there to be so few people in the street was unusual. = It was unusual that there were so few people in the street.九、 it句型1. Basic structure:There + be + subject + adverbial2. Non-finite structureThere to be - for ; VerbThere being -in,on.; noun; adverbialThere being a lawn extends f

23、rom 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 the 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

24、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.I t s fine today, isnt it.It was dull when Mary was away.It

25、 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 important 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

26、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 doesn t seem to be coming after all.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 yeste

27、rday.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 may have been at Christmas that John gave Mary a handbag.It was in Shanghai that I

28、 got my MastersDegree.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。*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 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分句的主语补语根据主动词what 引导的名词性分句，分句的主动词通常是 do 的适当形式而采取相应的形式。do 的一定形式。

29、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 a book.-Whathe didwas (to)giveher a book.what 分句 be +动词的分词He will be taking a plane to Beijing-What he will bedoing is taking a plane to BeijingHe has finishedhishomework.-Whathe has done isfinished(finish/tohomework.finish)hisPesudo - cleftI gave him

30、 a letter.What I did is give him a letterdo/did/does-dodoing -doingdone -donewhat 分句 be +名词词组名词词组 be+ what 分句Eg. He gave her a book.What he gave her was a book.A book was what he gave her.十一、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 n

31、ight, _?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 think he is a good student, _?I don t 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 breakfa

32、st 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 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Not onlybut also; eitheror ; neithernor不但连接词与词组，

33、还可连接句子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

34、.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

35、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 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

36、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next, 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 foot on 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 do

37、tend to do, decision to do decide to doThis book is an attempt to help you use English and recognize how it is used.(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”be ambitious to do“有雄心干 ”curiosity to do“对 的好奇心”be curious to do“对 好奇”ability to do“做 的能力”able to do“有能力做 ”Accordingto Darwi

38、n,random changes thatenhance a speciesabilitytosurvivearenaturally selected and passed on to succeeding generation.(4) 表示方式、原因、时间、机会、权利等名词用不定式做定语，这些名词包括：way, method, reason, time, place, chance, occasion, opportunity, evidence, power,right, movement, drive ( 运动 ) ， effort 等。如： I worked so late in th

39、e office last night that I hardly had time to catch the last bus.We appreciateyoureffortsto bringabout a comprehensivesolutiontothe existingproblem.(5) 不定代词something, nothing, little, much, a lot习惯上用不定式做定语。如：Though we have made great progress, there is still much to be improved.不定式做状语主要表示目的、程度、结果、方式

40、。(1)in order to(do), so as to(do)结构引导目的状语，so as to不能置于句首。如：(2)soas to, suchas to, enoughto, tooto 结构做程度状语。如：The solution works only for couples who are self- employed, dont have small children and get along well enough to spend most of their time together.The vocabulary and grammatical differences b

41、etween British and American English are so trivial and few as hardly to be noticed.(3) 不定式做结果状语只能出现在句子的末尾，表示不愉快的结果，有时用only 加强语气。常见的不定式动词有find, hear, see, be told, form, give, make, produce等。如：Greatly agitated, I rushed to the apartment and tried the door, only to find it locked.(4)not/nevertooready/eager/apt/inclined toto,toonot表示肯定意义。如：to,but/onlytooto,tooI am only too pleased to hear from you further.能再听到你的消息，我太高兴了。