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-boys, toy-toys, key-keys, ways 四)以o结尾加s(外来词)。如:radios, photos, 如: tomatoes西红柿, potatoes
马铃薯
但如是辅音加o的加es:
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:gloves, clothes, socks
people,pants, shorts, shoes, glasses,
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:
fish鱼 fishes
鱼的种类, paper纸 papers报
玻璃 glasses玻璃杯,灯, people人 peoples
纸,卷子,论文, work工作 works作品,工厂, glass眼镜, orange桔子水 oranges橙子, light
光线 lights
民族, time时间 times时代, 次数, chicken 十一)单个字母的复数可以有两种形式直接加(K’s)。但如是缩略词则只加
鸡肉 chickens 小鸡s或’s。如:Is (I’s), Ks
s。如:IDs, VCDs, SARs
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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:brother’s, Mike’s, teacher’s
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’; Children’s Day六一节, Women’s 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 Ben’s room迈克和本的
房间(共住一间),Mike’s and Ben’s rooms迈克和本的房间(各自的房间)2、代词项目人称
人称代词物主代词主格
宾格
指示代词形容词
反身代词名词性
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 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:
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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 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-training, 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:
play-playing,
hurry-hurrying,
watch-watching, go-going,
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,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,
则要使用比较或最高级形式。构成如
系 die-dying
死 lie-lying
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
er /est。如:big-bigger biggest,
few-fewer fewest)结尾的双写结尾的辅音再加red-redder reddest, hot-hotter hottest
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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 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, ninth, twelfth;
seventh, tenth, thirteenth,
second, third;
fifth,
eighth,
hundredth; twenty-twentieth,
forty-fortieth, ninety-ninetieth 二、初一英语语法——句式1.陈述句
肯定陈述句 a) This is a book. (beb) He looks very young. (c) I want a sweat like this. (
动词)
连系动词)
实义动词)
情态动词)
结构)
’t look nice.
d) I can bring some things to school. (
e) There’s a computer on my desk. (There be
否定陈述句a) These aren’t their books. b) They don
c) Kate doesn’t go to No. 4 Middle School. d) Kate can’t find her doll.e) There isn
’t a cat here. (=There
’s no cat here.)
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2. 祈使句
肯定祈使句a) Please go and ask the man. b) Let’s learn English!
c) Come in, please.
否定祈使句a) Don’t be late. b) Don’t 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 isn
’t. b) No, you can
’t. c) No, she doesn
No, they don’t. e) No, she isn
’t.
2) 选择疑问句 Is the table big or small? 回答It’s big./ It
’3) 特殊疑问句
① 问年龄 How old is Lucy? She is twelve.
② 问种类 What kind of movies do you like? I like action movies and comedies.
③ 问身体状况 How is your uncle? He is well/fine. ④ 问方式 How do/can you spell it? L-double O-K.
How do we contact you? My e-mail address is cindyjones@163.com.
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s small.
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初一英语学习知识点总结(详解版)
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