英语七年级上册语法重点.doc

新目标英语初一上册语法重点词汇句型1. 名词A）名词的数 名词可以分为可数名词和不可数名词，不可数名词没有复数形式，可数名词有单数和复数之分，复数的构成如下： 一）一般情况下在后面加s。如：fathers, books, Americans, Germans, apples, bananas 二）ce,se,ze,(d)ge后加s。如：prices,cases,oranges三）x, sh, ch, s, tch后加es。如：boxes, glasses, dresses, watches, wishes, faxes 四）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-comedies，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五）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 六）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 七）单复数相同（不变的）有：fish, sheep, deer, Chinese, Japanese 八）一般只有复数，没有单数的有：people,pants, shorts, shoes, glasses, gloves, clothes, socks 九）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 十）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-men doctors, woman teacher-women teachers 十一）表示民族的名词，有的在此为加s, 如：an Americanthree Americans; 有的单复数形式相同，如：a Chinesefour Chinese十二）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 十三） 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, VCDs, SARs 十四） 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 人称 主格 宾格 形容词 名词性 反身代词 指示代词第一人称 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 hers herself this thatHe him his his himself it it its its itself 复数 they them their theirs themselves these those3、动词 A) Be动词 is am areB） 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。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 C） 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-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-tying系 die-dying死 lie-lying 位于 4、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、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 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 you? 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./ 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-double O-K. How do we contact you? My e-mail address is cindyjones. 问原因 Why do you want to join the 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 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 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 play 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? Im not playing baseball. Nancy is writing a letter. Is Nancy writing a letter? Nancy isnt writing a leter。Theyre listening to the pop music. Are they listening the pop music? They arent listening to the pop music.