《初一英语语法知识点大全-初一英语语法点》由会员分享，可在线阅读，更多相关《初一英语语法知识点大全-初一英语语法点（22页珍藏版）》请在金锄头文库上搜索。
1、初一英语语法知识点大全一、初一英语语法词法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-duties, comedy-c
2、omedies, documentary-documentaries, story-stories2)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, yourself-yourselves六)单复数相同
3、(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所组成的合成词的复数则同时为复数。如：man doctor-m
4、en 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 (Ks)。但如是缩略词则只加s。如：IDs, VC
5、Ds, SARs十二) 特殊形式的有：child-children, man-men, woman-women, foot-feet, mouse-mice, policeman-policemen, Englishman-EnglishmenB)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; Childrens Day六一节, Womens Day三八节三)由and
6、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)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 your yours yourselves第三人称 单数 she her her h
7、ers herselfhe him his his himselfit it its its this that itself复数 they them their theirs these those themselves3、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：watches, washes, wishes, finishes三)1)以辅音字母加y结尾的变y为i再加es
8、。如：study-studies, hurry-hurries, try-tries2)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-hasB) 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-training, play-playing, hurry-hurrying, watch-watching, go-
9、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, let-letting, begin-beginning四)以ie结尾的变ie为y再加ing。如：tie-tyin
10、g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-fewer fewest)结尾的双写结尾的辅音再加er /est。如：big-bigger biggest, red-r
11、edder 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 - better best many/much - more most bad/ill worse worstlittle-
12、 less least old- older/elder oldest/eldest far- farther/further farthest/furthest5、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; twenty-twentieth, forty-fortieth, ninety-ninetieth二、初一英语语法句式1.陈述句肯定陈述
13、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 nice.c) Kate doesnt go to No. 4 Middle School. d) Kate cant find he
14、r 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 you? c) Does she like salad?d) Do they watch TV? e) Is she reading?肯定回答: a)
15、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./ Its 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-doubl
