5大基础英语语法知识,你记住多少?

语法知识一:名词单复数

1.一般情况,直接加-s,如:book-books, bag-bags, cat-cats, bed-beds

2.以s. x. sh. ch结尾,加-es,如:bus-buses, box-boxes, brush-brushes, watch-watches

3.以“辅音字母+y”结尾,变y为i, 再加-es,如:family-families, strawberry-strawberries

4.以“f或fe”结尾,变f或fe为v, 再加-es,如:knife-knives

5.不规则名词复数:man-men, woman-women, policeman-policemen, policewoman-policewomen, mouse-mice child-children, foot-feet, tooth-teeth, fish-fish, people-people, Chinese-Chinese, Japanese-Japane

6. 不可数名词的复数就是原型: paper, juice, water, milk, rice, tea

语法知识二:名词的格

(1) 有生命的东西的名词所有格:

a) 单数后加 ’s 如: Lucy’s ruler my father’s shirt

b) 以s 结尾的复数名词后加 ’如: his friends’ bags

c) 不以s 结尾的复数后加 ’s children’s shoes

并列名词中,如果把 ’s加在最后一个名词后,表示共有, 如:

Tom and Mike’s car 汤姆和迈克共有的小汽车

要表示所有物不是共有的,应分别在并列名词后加’s

Tom’s and Mike’s cars 汤姆和麦克各自的小汽车

(2)表示无生命东西的名词通常用“ of +名词”来表示所有关系:如:

a picture of the classroom a map of China

语法知识三:不定冠词,定冠词种类:

1. (1)不定冠词:a / an a unit / an uncle

元音开头的可数名词前用an :

an egg / an apple / an orange / an eraser / an answer / an ID card / an alarm clock / an actor / an actress / an e-mail / an address / an event / an example / an opera / an houran old man / an interesting book / an exciting sport / an action movie / an art lesson /

(2)定冠词:the

the egg the plane

2. 用法:定冠词的用法:

(1)特指某(些)人或某(些)物: The ruler is on the desk

(2)复述上文提到的人或物:He has a sweater. The sweater is new.

(3)谈话双方都知道的人或物:The boys aren’t at school.

(4)在序数词前: John’s birthday is February the second.

(5)用于固定词组中: in the morning / afternoon / evening

语法知识点四:不用冠词的情况:

(1)专有名词前:China is a big country.

(2)名词前有定语:this , that , my , your , some, any , no 等:This is my baseball.

(3)复数名词表示一类人和事:Monkeys can’t swim. They are teachers.

(4)在节日,日期,月份,季节前:Today is Christmas Day. It’s Sunday.

(5)一日三餐前:We have breakfast at 6:30.

(6)球类 棋类运动前:They often play football after class. He plays chess at home.

但乐器前要用定冠词:I play the guitar very well.

(7)学科名称前:My favorite subject is music.

(8)在称呼或头衔的名词前:This is Mr Li.

(9)固定词组中:at noon at night by bus

语法知识三:常用介词:in, on, at, behind等

1.at表示时间概念的某一个点。(在某时刻、时间、阶段等)。

at 1:00(dawn,midnight,noon)在一点钟(黎明、午夜、中午)

2.on

1)表示具体日期。

注:(1)关于"在周末"的几种表示法:

at(on)the weekend在周末---特指

at(on)weekends在周末---泛指

over the weekend在整个周末

during the weekend在周末期间

(2)在圣诞节,应说at Christmas?而不说on Christmas?

2)在(刚……)的时候。

On reaching the city he called up his parents.

一到城里他就给父母打了一个电话。

3.in

1)表示"时段"、"时期",在多数情况下可以和during互换,前者强调对比,后者强调持续。 in(during)1988(December,the 20th century)在一九八八年(十二月、二十世纪)

语法知识五:动词的四种时态

(1)一般现在时:

一般现在时的构成

1. be动词:主语+be(am, is, are)+其它。如: I am a boy. 我是一个男孩。

2. 行为动词:主语+行为动词(+其它)。 如: We study English. 我们学习英语。

当主语为第三人称单数(he, she, it)时,要在动词后加"-s"或"-es"。如:Mary likes Chinese.玛丽喜欢汉语。

动词+s的变化规则

1.一般情况下,直接加-s,如:cook-cooks, milk-milks

2.以s. x. sh. ch. o结尾,加-es,如:guess-guesses, wash-washes, watch-watches, go-goes

3.以“辅音字母+y”结尾,变y为i, 再加-es,如:study-studies

(2)一般过去时:

动词过去式详解 动词的过去式的构成规则有:

A、规则动词

① 一般直接在动词的后面加ed:如 worked , learned , cleaned , visited

② 以e结尾的动词直接加d:如 lived , danced , used

③ 以辅音字母加y结尾的动词要改y为i再加ed(此类动词较少)如 study – studied carry – carried worry – worried (注意play、stay不是辅音字母加y,所以不属于此类)

④ 双写最后一个字母(此类动词较少)如 stopped

B、不规则动词(此类词并无规则,须熟记)小学阶段要记住以下动词的原形和过去式:sing – sang , eat – ate ,

see – saw , have – had , do – did , go – went , take – took , buy – bought , get – got , read – read ,fly – flew , am/is – was ,

are – were , say – said , leave – left , swim – swam , tell – told , draw – drew , come – came , lose – lost , find – found , drink – drank , hurt – hurt , feel – felt

(3)一般将来时:

基本结构:

①be going to + do;

②will+ do. be going to = will

I am going to go swimming tomorrow(明天). = I will go swimming tomorrow.

(4)现在进行时: am,is,are+动词现在分词

动词现在分词详解 动词的ing形式的构成规则:

① 一般的直接在后面加上ing , 如doing , going , working , singing , eating

② 以e 结尾的动词,要先去e再加ing ,如having , writing

③ 双写最后一个字母的(此类动词极少)有:running , swimming , sitting , getting.


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