初一上册英语可能涉及的语法

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初一上册英语可能涉及的语法
初一上册英语可能涉及的语法
1个回答 分类:英语 2016-01-14

问题解答:

我来补答
解题思路: 平时注意在课堂上记笔记,只有日积月累才能充分掌握
解题过程:
七年级上册英语语法
一、动词be(is,am,are)的用法
我(I)用am, 你(you)用are,is跟着他(he),她(she),它(it)。单数名词用is,复数名词全用are。变否定,更容易,be后not加上去。变疑问,往前提,句末问号莫丢弃。还有一条须注意,句首大写莫忘记。
二、代词
this,that和it用法
(1)this和that是指示代词,it是人称代词。
(2)距离说话人近的人或物用this, 距离说话人远的人或物用that。如:
This is a flower. 这是一朵花。(近处)
That is a tree. 那是一棵树。(远处)
(3)放在一起的两样东西,先说this, 后说that。如:
This is a pen. That is a pencil. 这是一支钢笔。那是一支铅笔。
(4)向别人介绍某人时说This is?, 不说That is?。如:
This is Helen. Helen, this is Tom. 这是海伦,海伦,这是汤姆。
(5)This is 不能缩写, 而That is可以缩写。如:
This is a bike. That’s a car. 这是一辆自行车。那是一辆轿车。
(6)打电话时,介绍自己用this, 询问对方用that。如:
—Hello! Is that Miss Green? 喂,是格林小姐吗?
—Yes, this is. Who’s that? 是的,我是,你是谁?
注意:虽然汉语中使用“我”和“你”,但英语中打电话时绝不可以说:I am?, Are you??/Who are you?
(7)在回答this或that作主语的疑问句时, 要用it代替this或that。如:
①—Is this a notebook? 这是笔记本吗?
—Yes, it is. 是的,它是。
②—What’s that? 那是什么?
—It’s a kite. 是只风筝。
these和those用法
this, that, these和those是指示代词,these是this的复数形式,指时间,距离较近的或下面要提到的人或事;those是that的复数形式,指时间、距离较远或前面已经提到过的人或事物。 ①This is my bed. That is Lily’s bed. 这是我的床。那是莉莉的床。
②These pictures are good. 那些画很好。
③ Are those apple trees? 那些是苹果树吗?
在回答主语是these或those的疑问句时,通常用they代替these或those以避免重复。如:
④Are these/those your apples? 这些(那些)是你的苹果吗?
Yes, they are. 是的,他们是。
三、like一词的用法
like用作及物动词,译为“喜欢”。
(1)后接名词或代词,表示喜欢某人或某物。如:
I like the baby very much. 我非常喜欢这个小孩。
(2)后接动名词(v. -ing),表示“喜欢做某事”,着重于习惯、爱好。如:
Tom likes playing football. 汤姆喜欢踢足球。
(3)后接动词不定式(to do ),表示“偶尔地喜欢做某事”,着重于某次具体的行为。如: I like reading, but I like to watch TV this evening. 我喜欢读书,但我今晚想看电视。
四、名词
(一)名词复数:
在英语里面,名词分可数名词(countable noun)和不可数名词(uncountable noun)
不可数名词没有单复数之分,用时只当单数词用;
可数名词有单复数之分,一个的前面要用a或an,eg: a pencil, a basketball, a dictionary, an egg, an ID card,而复数即两个或两个以上的要作相应的变化,情况如下:
(1) 特殊词,特殊变化,需单独记:
child→children,man→men,foot→feet,woman→women
tooth→teeth,sheep→sheep,deer→deer
(2)一般的词在单数词后直接+“s”:
book→books,pen→pens,car→cars,map→maps,cartoon→cartoons
(3)以s,x,sh,ch结尾的词+“es”
box→boxes,watch→watches
(4)以辅音字母+y结尾的名词去掉“y”,改成“i”,再加“es”
family→families,comedy→comedies
(5)以f或fe结尾的词,先去掉f或fe,改成“v”再加es
knife→knives,wife→wives,handkerchief→handkerchieves
(6)不可数名词(单复数形式不变)
bread, rice, water ,juice etc.
句子单数变复数,注意以下五要素:
(1)主格人称代词要变成相应的复数主格人称代词,即I→we, you→you,she,he,it→ they。 如:She is a girl. →They are girls.
(2)am,is要变为are。如:
I’m a student. →We are students.
(3)不定冠词a,an要去掉。如:
He is a boy. →They are boys.
(4)普通单数名词要变为复数形式。如:
It is an apple. →They are apples.
(5)指示代词this,that要变为these,those。如:
This is a box. →These are boxes.
(二)名词所有格
单数名词后直接加 “ ’s ”:
Jim’s coat 吉姆的外套 Jeff’s mother杰夫的妈妈
以s结尾的复数名词,只加“’”
Teachers’ Day教师节 the twins’ books双胞胎的书
不以s结尾的不规则的名词复数,加“ ’s ”
Children’s Day 儿童节 men’s shoes男式鞋
表示两者共同拥有时,只在最后一个名词后加’s
Lucy and Lily’s mother 露茜和莉莉的妈妈(共同的妈妈,一个妈妈)
表示两者各自拥有时,要在每个名词后加’s
Lucy’s and Kate’s rooms 露茜和凯特的房间(各自的房间,两间房子)
五、英语日期的表示法
英语中月份和星期名称都是专有名词,它们的首字母必须大写,并且前面无需用冠词。 用英语表示日期,其顺序为月+日+年,日和年之间需用逗号隔开。如:August 2nd,2003(2003年8月2日)。也可以用日+月+年来表示。如:10th May,2003(2003年5月10日)英语日期前介词的使用:若指在哪一年或哪一月,则用介词in,若具体到某一天,则需用介词on。
时间的表达法
(1) 直读式,即直接读出时间数字
7: 05 seven five 8:16 eight sixteen
(2) 过、差式,即几点差几分,几点过几分。(以30分为分界线)
1:25 twenty-five past one 2:30 half past two
3:43 seventeen to four 4:38 twenty-two to five
(3)12小时制
6:00 a.m. 上午6点 8:20 p.m. 下午8点20分
(4)24小时制
13:00 13点钟 22:15 22点15分
(5)15分可用quarter
4:15 a quarter past four 5:45 a quarter to six
(6)时间前通常用at.
at 5 o’clock at 7:30 p.m.
六、want用法
(1)想干什么用want to do sth
They want to join the sports club. 他们想加入运动俱乐部。
(2)第三人称单数作主语,want要作变化
①He wants to play basketball.
②Li Xia wants to play the piano.
(3)变疑问句,否定句要借助助动词do或does.
①-Do you want to play soccer ball ? -Yes , I do . / No , I don’t.
②-Does he want to go home by bus ? -Yes , he does . / No , he doesn’t
(3)不定冠词a,an要去掉。如:
He is a boy. →They are boys.
(4)普通单数名词要变为复数形式。如:
It is an apple. →They are apples.
(5)指示代词this,that要变为these,those。如:
This is a box. →These are boxes.
七、情态动词
Can
can作“能、会”解,否定式是cannot,缩写为can’t。
“can+动词原形” “can’t+动词原形” :表示某人能做或不能做某事
Can 是情态动词,没有人称和数的变化。
Can 表示的”能力”为现在的能力,而不是过去或将来的能力。
Would
Would是will的过去式,可用于各人称,表示过去时间的"意志"、"愿望"和 "决心"等。
如:I told peter that I would go along wit him.我告诉彼得我要跟他一块去。
would用来表示现在时间时时,不论是表达说话人本身的意志或向对方提出请求,均较will婉转。如:
Would you like to have a glass of wine? 你要喝杯酒吗?
Would you please tell me the way to the nearest bus-stop?
[注]在日常会话中,I would like to和I should like to都可以说,I would like的简略式为I'd like。如:yes, I’d like to. Yes, I’d love to
Yes, very much. Sorry, ai already have an appointment.
Would还可以表示过去习惯发生的动作
I found that retired persons would often go to the park to play chess.我发现退休的人经常到公园里下棋。
When he had a problem to solve,he would work at it until he found an answer.当他有个问题要解决时,他总是想办法一直到找到答案为止。
八、冠词:不定冠词,定冠词种类:
(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
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
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
九、形容词,副词:比较级,最高级
(一)、形容词的比较级
1)形容词比较级在句子中的运用:两个事物或人的比较用比较级,比较级后面一般带有单词than。比较级前面可以用more, a little来修饰表示程度。than后的人称代词用主格(口语中可用宾格)。
2)形容词加er的规则:
⑴ 一般在词尾加er ;
⑵ 以字母e 结尾,加r ;
⑶ 以一个元音字母和一个辅音字母结尾,应双写末尾的辅音字母,再加er ;
⑷ 以―辅音字母+y‖结尾,先把y变i,再加er 。
3)不规则形容词比较级: good-better, beautiful-more beautiful
(二)副词的比较级
1)副词比较级的变化规则基本与形容词比较级相同 (不规则变化:well-better, far-farther)
十、数词:基数词,序数词
1、基数词
(1)1-20 one,two,three,four,five,six,seven,eight,nine,ten,eleven,twelve,thirteen,fourteen,fifteen, sixteen,seventeen,eighteen,nineteen,twenty
(2)21-99 先说―几十‖,再说―几‖,中间加连字符。 23→twenty-three,34→thirty-four,45→forty—five,56→fifty-six,67→sixty-seven,78→seventy-eight,89→eighty-nine,91→ninety-one
(3)101—999先说―几百‖,再加and,再加末两位数或末位数; 586→five hundred and eighty-six,803→eight hundred and three
(4)l,000以上,先从右往左数,每三位数加一个―,‖,第一个―,‖前为thousand.第二个―,‖前为million,第三个―,‖前为billion 1,001→one thousand and one 18,423→eighteen thousand,four hundred and twenty-three
6,260,309→six million two hundred and sixty thousand three hundred and nine 750,000,000,000→seven hundred and fifty billion
2、序数词
(1)一般在基数词后加th eg.four→fourth,thirteen→thirteenth
(2)不规则变化 one→first,two→second,three→third,five→fifth,eight→eighth,nine→ninth,twelve—twelfth
(3)以y结尾的十位整数,变y为ie再加th twenty→twentieth, forty→fortieth, ninety→ninetieth
(4)从二十一后的―几十几‖直至―几百几十几‖或―几千几百几十几‖只将个位的基数词变为序数词。 twenty-first,two hundred and forty-fifth
十一、介词:常用介词:in, on, at, behind等
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) 
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。
in
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)
十二、动词: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
十三、句法
1.陈述句
(1)肯定句:是指用肯定的语气来陈述的句子,如:
I’m a student.
She is a doctor.
He works in a hospital.
There are four fans in our classroom.
He will eat lunch at 12:00.
I watched TV yesterday evening.
(2)否定句:含有否定词或表示否定意义词的句子,如:
I’m not a student.
She is not (isn’t) a doctor.
He does not (doesn’t) work in a hospital.
There are not (aren’t) four fans in our classroom.
2. 疑问句
一般疑问句:是指询问事实的句子,此类句子必须用―yes‖,或―no‖来回答。
特殊疑问句:以特殊疑问词(what , where , who , which , when , whose , why , how等)开头引导的句子。此类句子应该问什么就答什么,不能用―yes 、no‖来回答。
3.There be句型
There be句型的结构及用法
(1)There be句型主要用以表达“某处(某时)有某人(某物)。”其基本结构为“There be+某物(某人)+某地(某时)”其中there是引导词,没有词义;主语是be后面的名词, be是谓语动词,在一般现在时中be只用is和are两种形式。下面这首歌诀可帮你巧记there be句型结构:
There be放句首,主语跟在后。地、时放句末,强调置前头。如:
There is a book on the desk.
有时为了强调地点,也可把介词短语放在句首。如:
On the desk there is a book.
(2)There be句型中的be动词如何确定呢?请先看看下面这首歌诀:
Be动词,有三个,am,is还有are。“There be”真特别,不留am只留俩,那就是is还有are。要用is还是are,须看其后的名词是单数还是复数。若是单数或不可数名词用is,否则就用are。如:
①There is a tree behind the house.
②There is some water(水)in the bottle(瓶子).
③There are some pears in the box.
(3)注意:如果“be”后的主语是由and连接的两个或两个以上的名词,那么be的形式要遵循“远亲不如近邻”的原则。也就是说,“be”的形式是由与它最近的那个名词来确定的。若那个名词是单数或不可数名词要用is,是复数就用are。如:
①There is a book and some pens on the floor.
②There are some pens and a book on the floor.
There be 句型与have, has的区别
1)There be 句型表示:在某地有某物(或人)
2)在there be 句型中,主语是单数,be 动词用is 主语是复数,be 动词用are 如有几件物品,be 动词根据最*近be 动词的那个名词决定。
3)there be 句型的否定句在be 动词后加not , 一般疑问句把be 动词调到句首
4)there be句型与have(has) 的区别:there be 表示在某地有某物(或人);have(has) 表示某人拥有某物。
5)some和any在there be句型中的运用:some用于肯定句,any用于否定句或疑问句。
6)and 和or 在there be句中的运用:and 用于肯定句,or 用于否定句或疑问
 
 
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