1、初一英语学习知识点总结一、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, 三）1）以辅音字母加 y 结尾的变 y 为 i 再加 es 如：baby-babies,2）以元音字母加 y 结尾的直接加 s。如：day-days, boy
2、-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（不变的）有：fish, sheep, deer 鹿子, Chinese, Japanese七）一般只有复数，没有单数的有：peo
3、ple,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-men doctors, woman teacher-women teachers十）有的单复数意思不同。如：fis
4、h 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, VCDs, SARs十二） 特殊形式的有：child-children, man
5、-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
6、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 hers herselfhe him his his
7、 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。如：study-stud
8、ies, 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-going,
9、 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：ti
10、e-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-fewer fewest)结尾的双写结尾的辅音再加 er /est。如：big-b
11、igger 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 - better bestmany/much - more mostbad
12、/ill worse worstlittle- less leastold- older/elder oldest/eldestfar- 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-nin
13、etieth二、初一英语语法句式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 S
14、chool. 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?
15、 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 twelv
16、e. 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 . 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
17、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
18、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 n
19、ames 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)
20、What do you do? Im a teacher.Whats your father? Hes a doctor.三、初一英语语法时态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 tom
21、atoes? 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? N
22、ancy isnt writing a letter.Theyre listening to the pop music. Are they listening the pop music? They arent listening to the pop music.四、初一英语语法介词用法：1) 具体时间前介词用 at。. He gets up at half past seven every day. 他每天七点半起床。She goes to bed at eleven oclock. 她十一点睡觉。2) 表示“在早上，在下午，在晚上”的短语中用介词 in，且定冠词 the 不能省略；表示
23、“在中午，在夜里”的短语中介词用 at，不加冠词。in the morning 在早上，in the afternoon 在下午，in the evening 在晚上at noon 在中午，at night 在夜里3) 表示“在某天”、“在某天的上午、下午等”的短语用介词 on。What do you usually do on Monday morning? 星期一上午你通常做什么？Do you sometimes go out to eat on Friday evening? 有时你星期五晚上出去吃饭吗？He watches DVDs on Saturday night. 星期六晚上他看 DVD。Parents take children to parks on June 1. 六月一日，家长们带着孩子去公园。4)在 this, last, next, every 等词前面既不加介词，也不用冠词。What are you doing this afternoon? 今天下午你做什么？He visits his grandma every Friday. 他每个星期五都去看望祖母。She is going to Shanghai next Monday. 她下个星期一去上海。
