1、初中英语七年级语法大全初中英语语法大全-初中七年级语法一、词法 1、名词 A)、名词的数 我们知道名词可以分为可数名词和不可数名词,而不可数名词它没有复数形式,但可数名词却有单数和复数之分,复数的构成如下: 一)在后面加s。如:fathers, books, Americans, Germans, apples, bananas 二)x, sh, ch, s, tch后加es。如:boxes, glasses, dresses, watches, wishes, faxes 三)1)以辅音字母加y结尾的变y为i再加es 如:baby-babies, family-families, duty-
2、duties, comedy-comedies, documentary-documentaries, story-stories 2)以元音字母加y结尾的直接加s。如:day-days, boy-boys, toy-toys, key-keys, ways 四)以o结尾加s(外来词)。如:radios, photos, 但如是辅音加o的加es:如: tomatoes西红柿, potatoes马铃薯 五)以f或fe结尾的变f为v再加es(s)。如:knife-knives, wife-wives, half-halves, shelf-shelves, leaf-leaves, yoursel
3、f-yourselves 六)单复数相同(不变的)有:fish, sheep, deer鹿子, Chinese, Japanese 七)一般只有复数,没有单数的有:people,pants, shorts, shoes, glasses, gloves, clothes, socks 八)单词形式不变,既可以是单数也可以是复数的有:police警察局,警察, class班,同学, family家,家庭成员 九)合成的复数一般只加主要名词,多数为后一个单词。如:action movie-action movies, pen pal-pen pals; 但如果是由man或woman所组成的合成词的
4、复数则同时为复数。如:man doctor-men doctors, woman teacher-women teachers 十)有的单复数意思不同。如:fish鱼 fishes鱼的种类, paper纸 papers报纸,卷子,论文, work工作 works作品,工厂, glass玻璃 glasses玻璃杯,眼镜, orange桔子水 oranges橙子, light光线 lights灯, people人 peoples民族, time时间 times时代, 次数, chicken 鸡肉 chickens 小鸡 十一) 单个字母的复数可以有两种形式直接加s或s。如:Is (Is), Ks
5、(Ks)。但如是缩略词则只加s。如:IDs, VCDs, SARs 十二) 特殊形式的有:child-children, man-men, woman-women, foot-feet, mouse-mice, policeman-policemen, Englishman-Englishmen B)名词的格 当我们要表示某人的什么东西或人时,我们就要使用所有格形式。构成如下: 一)单数在后面加s。如:brothers, Mikes, teachers 二)复数以s结尾的直接在s后加,如果不是以s结尾的与单数一样处理。如:Teachers Day教师节, classmates; Childre
6、ns Day六一节, Womens Day三八节 三)由and并列的名词所有时,如果是共同所有同一人或物时,只加最后一个s,但分别拥有时却分别按单数形式处理。如:Mike and Bens room迈克和本的房间(共住一间),Mikes and Bens rooms迈克和本的房间(各自的房间) 二、2、代词 项目 人称代词 物主代词 指示代词 反身代词 人称 主格 宾格 形容词 名词性 第一人称 单数 I me my mine myself 复数 we us our ours ourselves 第二人称 单数 you you your yours yourself 复数 you you yo
7、ur yours yourselves 第三人称 单数 she her her hers herself he him his his himself it it its its this that itself 复数 they them their theirs these those themselves 3、动词 A) 第三人称单数 当动词是第三人称单数时,动词应该像名词的单数变动词那样加s,如下: 一)一般在词后加s。如:comes, spells, waits, talks, sees, dances, trains 二)在x, sh, ch, s, tch后加es。如:watche
8、s, washes, wishes, finishes 三)1)以辅音字母加y结尾的变y为i再加es。如:study-studies, hurry-hurries, try-tries 2)以元音字母加y结尾的直接加s。如:plays, says, stays, enjoys, buys 四)以o结尾加es。如:does, goes 五)特殊的有:are-is, have-has B) 现在分词 当我们说某人正在做什么事时,动词要使用分词形式,不能用原形,构成如下: 一)一般在后加ing。如:spell-spelling, sing-singing, see-seeing, train-tra
9、ining, play-playing, hurry-hurrying, watch-watching, go-going, do-doing 二)以不发音e的结尾的去掉e再加ing。如:dance-dancing, wake-waking, take-taking, practice-practicing, write-writing, have-having 三)以重读闭音节结尾且一个元音字母一个辅音字母(注意除开字母组合如show showing, draw-drawing)要双写最后的辅音字母再加ing。如:put-putting, run-running, get-getting,
10、let-letting, begin-beginning 四)以ie结尾的变ie为y再加ing。如:tie-tying系 die-dying死 lie-lying 位于 4、形容词的级 我们在对两个或以上的人或物进行对比时,则要使用比较或最高级形式。构成如下: 一) 一般在词后加er或est(如果是以e结尾则直接加r或st)。如:greater-greatest, shorter shortest, taller tallest, longer longest, nicer- nicest, larger -largest 二)以重读闭音节结尾且1个元音字母1个辅音字母(字母组合除外,如few
11、-fewer fewest)结尾的双写结尾的辅音再加er /est。如:big-bigger biggest, red-redder reddest, hot-hotter hottest 三) 以辅音字母y结尾的变y为i加er/est。如:happy-happier happiest, sorry-sorrier sorriest, friendly-friendlier friendliest(more friendly most friendly), busy-busier busiest, easy-easier easiest 四)特殊情况:(两好多坏,一少老远) good/well
12、 - better best many/much - more most bad/ill worse worst little- less least old- older/elder oldest/eldest far- farther/further farthest/furthest 5、数词 (基变序,有规则;一、二、三,自己背;五、八、九、十二;其它后接th;y结尾,变为i, eth跟上去。) first, second, third; fifth, eighth, ninth, twelfth; seventh, tenth, thirteenth, hundredth; twen
13、ty-twentieth, forty-fortieth, ninety-ninetieth 二、句式 1.陈述句 肯定陈述句 a) This is a book. (be动词) b) He looks very young. (连系动词) c) I want a sweat like this. (实义动词) d) I can bring some things to school. (情态动词) e) Theres a computer on my desk. (There be结构) 否定陈述句 a) These arent their books. b) They dont look
14、nice. c) Kate doesnt go to No. 4 Middle School. d) Kate cant find her doll. e) There isnt a cat here. (=Theres no cat here.) 2. 祈使句 肯定祈使句 a) Please go and ask the man. b) Lets learn English! c) Come in, please. 否定祈使句a) Dont be late. b) Dont hurry. 3. 疑问句 1) 一般疑问句 a) Is Jim a student? b) Can I help y
15、ou? c) Does she like salad? d) Do they watch TV? e) Is she reading? 肯定回答: a) Yes, he is. b) Yes, you can. c) Yes, she does. d) Yes, they do. e) Yes, she is. 否定回答: a) No, he isnt. b) No, you cant. c) No, she doesnt. d) No, they dont. e) No, she isnt. 2) 选择疑问句 Is the table big or small? 回答 Its big./ I
16、ts small. 3) 特殊疑问句 问年龄 How old is Lucy? She is twelve. 问种类 What kind of movies do you like? I like action movies and comedies. 问身体状况 How is your uncle? He is well/fine. 问方式 How do/can you spell it? L-double O-K. How do we contact you? My e-mail address is cindyjones. 问原因 Why do you want to join the
17、club? 问时间 Whats the time? (=What time is it?) Its a quarter to ten a.m. What time do you usually get up, Rick? At five oclock. When do you want to go? Lets go at 7:00. 问地方 Wheres my backpack? Its under the table. 问颜色 What color are they? They are light blue. Whats your favourite color? Its black. 问人
18、物 Whos that? Its my sister. Who is the boy in blue? My brother. Who isnt at school? Peter and Emma. Who are Lisa and Tim talking to? 问东西 Whats this/that (in English)? Its a pencil case. What else can you see in the picture? I can see some broccoli, strawberries and hamburgers. 11问姓名 Whats your aunts
19、 name? Her name is Helen./Shes Helen. Whats your first name? My first names Ben. Whats your family name? My family names Smith. 12 问哪一个 Which do you like? I like one in the box. 13 问字母 What letter is it? Its big D/small f. 14 问价格 How much are these pants? Theyre 15 dollars. 15 问电话号码 Whats your phone
20、 number? Its 576-8349. 16 问谓语(动作) Whats he doing? Hes watching TV. 17 问职业(身份) What do you do? Im a teacher. Whats your father? Hes a doctor. 三、时态 1、一般现在时 表示普遍、经常性的或长期性的动作时使用一般现在时,它有: Be 动词:Shes a worker. Is she a worker? She isnt a worker. 情态动词:I can play the piano. Can you play the piano? I cant pl
21、ay the piano. 行为动词:They want to eat some tomatoes. Do they want to eat any tomatoes? They dont want to eat any tomatoes. Gina has a nice watch. Does Gina have a nice watch? Gina doesnt have a watch. 2、现在进行时 表示动词在此时正在发生或进行就使用进行时态,结构为sb be v-ing sth + 其它. Im playing baseball. Are you playing baseball?
22、 Im not playing baseball. Nancy is writing a letter. Is Nancy writing a letter? Nancy isnt writing a letter. Theyre listening to the pop music. Are they listening the pop music? They arent listening to the pop music.人称代词 英语的人称代词(Personal Pronoun)有三种不同的人称形式:第一人称(First Person)指说话人自己;第二人称(Second Person
23、)指说话的对象;第三人称(Third Person)指说话人谈论的对象。三种人称又各有单、复数形式,第三人称单数还有阳性、阴性、中性的区别。这样,人称代词就具有下列诸种形式: 第一人称 单数I,me,my,mine 复数we,us,our,ours 第二人称 单数you,you,your,yours 复数you,you,your,yours 第三人称 单数he,him,his,his(阳性) she,her,her,hers(阴性) it,it,its(中性) 复数they,them,their,theirs 在上列人称代词的不同形式中,还包含了主格(Subjective Case)、宾格(O
24、bjective Case)和属格(Genitive Case)三种“格”的形式。这样,从“格”的形式来划分,英语的人称代词又可归纳为: 主格:I,you,he,she,it,we,you,they 宾格:me,you,him,her,it,us,you,them 属格:my,mine,your,yours,his,her,hers,its,our,ours,their,theirs 属格又可分为两类:一类是形容词性物主代词(my,your,his,her,its,our,their)即本书所讲的“物主限定词”;另一类是名词性物主代词(mine,yours,his,hers,ours,thei
25、rs),即本书中的“物主代词”。 1)人称代词的主格在句子中作主语或主语补语,例如: John waited a while but eventually he went home. 约翰等了一会儿,最后他回家了。 John hoped the passenger would be Mary and indeed it was she. 约翰希望那位乘客是玛丽,还真是她。 说明:在复合句中,如果主句和从句主语相同,代词主语要用在从句中,名词主语用在主句中,例如: When he arrived, John went straight to the bank. 约翰一到就直接去银行了。 2)人称
26、代词的宾格在句子中作宾语或介词宾语,但在口语中也能作主语补语,第一人称在省略句中,还可以作主语,例如: I saw her with them, at least, I thought it was her. 我看到她和他们在一起,至少我认为是她。(her做宾 语,them做介词宾语,her做主语补语) a. - Who broke the vase? -谁打碎了花瓶? b. - Me. -我。(me做主语补语= Its me.)代词 代词是代替名词的一种词类。大多数代词具有名词和形容词的功能。英语中的代词,按其意义、特征及在句中的作用分为:人称代词、物主代词、指示代词、自身代词、相互代词、疑
27、问代词、关系代词和不定代词八种。 一、人称代词是表示我、你、他、她、它、 我们、你们、他们的词。人称代词有人称、数和格的变化,见下表: 数 单数 复数 格 主格 宾格 主格 宾格 第一人称 I me we us 第二人称 you you you you he him they them 第三人称 she her they them it it they them 如:He is my friend. 他是我的朋友。 Its me. 是我。 二、 物主代词表示所有关系的代词,也可叫做代词所有格。物主代词分形容性物主代词和名词性物主代词二种,其人物和数的变化见下表。 数 单数 复数 人称 第一 第
28、二 第三 第一 第二 第三 人称 人称 人称 人称 人称 人称 形容词性 my your his/her its our your/their 物主代词 名词性 mine yours his/hers its ours yours/theirs 物主代词 如: I like his car. 我喜欢他的小汽车。 Our school is here,and theirs is there. 我们的学校在这儿,他们的在那儿。 三、 指示代词表示那个、这个、这些、那些等指示概念的代词。指示代词有this,that,these,those等。 如: That is a good idea. 那是个好
29、主意。 四、 表示我自己、你自己、他自己、我们自己、你们自己和他们自己等的代词,叫做自身代词,也称为反身代词。 如: She was talking to herself. 她自言自语。 五、 表示相互关系的代词叫相互代词,有each other&n bsp;和one another两组,但在运用中,这两组词没什么区别。 如: They love each other. 他们彼此相爱。 六、 不是指明代替任何特定名词的代词叫做不定代词。常见的不定代词有a11,both,each,every等,以及含有some-,any-,no-等的合成代词,如anybody, something,no one
30、。这些不定代词大都可以代替名词和形容词,在句中作主语、宾语、表语和定语, 但none和由some,any,no等构成的复合不定代词只能作主语、宾语或表语;every和no只能作定语。如: - Do you have a car? -你有一辆小汽车吗? - Yes,I have one. -是的,我有一辆。 - I dont know any of them. 他们,我一个也不认识。 七、 疑问代词有who,whom,whose,what和which等。在句子中用来构成特殊疑问句。疑问代词都可用作连接代词,引导名词性从句(主语从句、宾语从句和表语从句) 如:Tell me who he is.
31、告诉我他是谁。 八、 关系代词有who,whom,whose,that,which,as等,可用作引导从句的关联词。它们在定语从句中可作主语、表语、宾语、定语等;另一方面它们又代表主句中为定语从句所修饰的那个名词或代词(通称为先行词)。 如: He is the man whom you have been looking for. 他就是你要找的那个人。 3.1 人称代词的用法 1)人称代词的主格在句子中作主语或主语补语,例如: John waited a while but eventually he went home. 约翰等了一会儿,最后他回家了。 John hoped the passenger would be Mary and indeed it was she. 约翰希望那位乘客是玛丽,还真是她。 说明:在复合句中,如果主句和从句主语相同,代词主语要用在从句中,名词主语用在主句中,例如: Whe
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