奥旭油烟机的价格表:初一英语上册语法总结
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一.动词be(is,am,are)的用法:说明身份,年龄,状态等。
口诀: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。
be动词的用法:
be动词包括“am”, “is”, “are”三种形式。
第一人称单数(I)配合am来用。
句型解析析:I am+…
I am a student. I am a boy.
第二人称(You)配合are使用。
句型解析:You are+…
You are my good friend. You are a good person.
第三人称单数(He or She or It)配合is使用。
句型解析:She(He, It) is +…
She is a good girl. She is so cute.
人称复数 (we /you/they)配合are使用。
句型解析:We (You, They) are +…
We are in Class 5,Grade 7. Youare good students.
注意:
1 综合解析当使用be动词的时候,前面请先加上第几人称。
be动词前面的人称,是不可随意替换的。例如:
I am, You are, She is,并不会出现I is, Youam, She are 这样的情形。
2 当只有第一人称和第二人称或第三人称时应该把第二人称或第三人称放在前
例如:youand I, Tom and I
当第二人称和第三人称放在一起时把第二人称放在前面,
例如:youand Tom
当三者都有时,排序为:2 3 1
例如you, Tom and I
练习:1. Where______ Ann . She ______ here.
2. How old ______ you . I ______ thirteen.
3. ______ you Mr Read . Yes, I ______.
4. What ______ your name. Myname ____ Ann
二 情态动词Can
1 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。
1). for ability表示能力。例如:
—Can you write in English? —Yes, I can.
I can run fast,can you?
2). indicating acquired knowledge or skill表示获得的知识或技能。例如:
—Can she speak Japanese? —No, she can’t.她会说日语吗?不,她不会。
3). indicatingpermission表示许可。例如:
Can I read your newspaper?我能看看你的报纸吗?
Can I take you home?我送你回家行吗?
We can’t wear jeans at work.我们上班时不准穿牛仔裤。
4). indicatingrequests表示要求。例如:
Can you help me with this box?你能帮我弄这个箱子吗?
Can you feed the cat?你喂喂猫好吗?
5). indicatingpossibly表示可能性。例如:
That can’t be Mary—she’s inhospital.那不可能是玛丽—她住院了。
He can’t have slept through allthat noise.那么吵他不可能睡得着觉。
There’s someone outside—who canit be?外面有人—会是谁呢?
6). used to makesuggestions用以提出建议。例如:
We can eat in a restaurant, ifyou like.你愿意的话,咱们可以在饭馆吃饭。
I can take the car if necessary.必要时我可以开车去。
三 情态动词Would
1 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:Itold peter that I would go along wit him.我告诉彼得我要跟他一块去。
2 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 glassof wine? 你要喝杯酒吗?
Would you please tell me theway 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 anappointment.
3 Would还可以表示过去习惯发生的动作
I found that retired personswould 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。
练习:
1 -Can you speak Japanese? -No, I_A___.
A. mustn't B. can't C. needn't D. may not
2 The children___ playfootball on the road.
A. can't B. can C. mustn't D. must
3 -Shall we go and visit theHistory Museum next Sunday?
A. Here you are B.Sorry, I can't C. Yes, please D. Let me try
4 Excuse me. ___ you pleasepass me that cup?
A. Do B.Should C. Would D. Must
5 ___ you like to have another try?
A. Could B. Will C. Would D. Do
6 -Would you like to goboating with us? -Yes, ___.
A. I'd like B. I want C. I'd like to D. I do
四“there be”句型
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。
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:
①Thereis a tree behind the house.
②Thereis some water(水)inthe bottle(瓶子).
③Thereare 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:
①Thereis a book and some pens on the floor.
②Thereare some pens and a book on the floor.
肯定句:there is an apple on the table
否定句:there isn't an apple on the table.
一般疑问句: Is there an apple on the table? 回答:yes, there is./ No, there isn't
特殊疑问句:what is there on the table.
1. 定义:There be句型表示某处存在某物或某人。
2. 结构:
(1)There is +单数可数名词/不可数名词+ 地点状语.
(2)There are +复数名词+地点状语.
there是引导词,在句中不充当任何成分,翻译时也不必译出。句子的主语是某人或某物,谓语动词be要与主语(某人或某物)的数保持一致。当主语是两个或两个以上的名词时,谓语动词要与跟它最近的那个名词一致。
① There is a bird in thetree. 树上有一只鸟。
② There is a teacher and many students in ourclassroom.
我们教室里有一位老师和许多学生。
③ There are two boys and a girlunder the tree. 树下有两个男孩,一个女孩。
3. There be句型与have的区别:
(1)There be 句型和have都表示“有”的含义。区别如下:There be表示“某处存在某物或某人”;have表示“某人拥有某物/某人”,它表示所有、拥有关系。 eg.
①He has two sons. 他有两个儿子。
②There are two men in theoffice. 办公室里有两个男人。
(2)当have表示“包括”、“存在”的含义时,There be 句型与其可互换。
①Aweek has seven days. =There are seven days in a week. 一个星期有七天。
4 变脸一:否定句
There be句型的否定式的构成和含有be动词的其它句型一样,在be后加上not或no即可。注意not和no的不同:not是副词,no为形容词,not a/an/any + n. 相当于no+ n.。例如:
Thereare some pictures on the wall. →There aren't any pictures on the wall. =There are nopictures on the wall.
Thereis a bike behind the tree. → There isn't a bike behind the tree
.=There is no bike behind the tree.
5 变脸二:一般疑问句
There be句型的一般疑问句变化是把be动词调整到句首,再在句尾加上问号即可,此为\"调整法\"。但同时要注意:当肯定句中有some时,要将其改为any(否定变化也一样)。看看下面两句是如何\"改头换面\"的吧:
Thereis some water on Mars. → Is there any water on Mars?
Thereare some fish in the water. →Are there any fish in the water?
6 变脸三:特殊疑问句
Therebe句型的特殊疑问句形式有以下三种变化:
① 对主语提问:当主语是人时,用\"Who\'s+介词短语?\";当主语是物时,用\"What\'s + 介词短语?\"。注意:无论原句的主语是单数还是复数,对之提问时一般都用be的单数形式(回答时却要根据实际情况来决定)。如:
Thereare many things over there. →What's over there?
Thereis a little girl in the room.→Who is in the room?
② 对地点状语提问:提问地点当然用"Where is /are+主语?\"啦!例如:
Thereis a computer on the desk. → Where is the computer?
Thereare four children on the playground. →Where are the four children?
③ 对数量提问:一般有两种句型结构:
Howmany+复数名词+are there+介词短语?
Howmuch+不可数名词+is there+介词短语?
练习:
五 “have got”
六 序数词
七 一般现在时
一般现在时:
1) 它表示经常性、习惯性的动作或存在的状态。
e.g. I go to school on foot. He is very busy now.
2)表示主语的特征、性格、能力、爱好等。
e.g. He can swim. I work hard. I like watching TV.
3)表示客观真理,表示格言或警句中
e.g. There are seven days in aweek. The moon moves round the earth.
一 其结构按正常语序,即“主语+谓语+其它”,有时为了起强调作用,时间状语也可提前.
二 其句式变化可分为两种情况
1)表示动作, 一般人称作主语的,变否定句须在动词前加助动词don’t;变一般疑问句须在句首加助动词do。
They have lunch at 12:00. Theydon’t have lunch at 12:00.
Do they have lunch at 12:00?
2)单三人称做主语的,变否定句须在动词前加助动词doesn’t;变一般疑问句须在句首加助动词does。
Jenny speaks English verywell. Jenny doesn’t speak English very well.
Does Jenny speak English verywell?
含有be动词的要在be上做变化.
E.g. Danny is a good student. Danny isn’t a good student.
Is Danny a good student?
三 其时间状语为often、 usually、 always、 sometimes等频率副词,on Saturdays、 in the morning(afternoon evening) 、every day 等。
做题时常见错误如下:
一、be动词与行为动词同时出现在句子中
例:Weare plant (plant) the trees in spring.
解析:学生往往会用汉语的思维方式去翻译,就成了“我们是在春天植树”。这是学习英语最忌讳的,要看语法是不是正确,在英语中,be是表状态,do是表动作,两种动词不能同时出现在句子中,可记住如下口诀:“英汉语言有差异,be 、do不能放一起,仔细琢磨细分析,语法千万要牢记。”
二、单三人称形式易出错
例:1He plaies (play) football very well.
2 Danny gos (go) to school at7:10. 答案:1 plays 2goes
解析:1以辅音字母加y结尾的动词变单三人称形式才能把y换成i再加es;2与名词变复数不同,变单三人称形式以o结尾的词要加es.
三、在句式变换时易出错
例:1Does Jenny has (has) a good friend?
2 Brian doesn’t lives (notlive) in China. 答案:1 Does have 2 doesn’t live
解析:单三人称做主语的一般现在时做句式变化时,可记住如下口诀:“见助动,用原形”。此口诀也可推广用于一般过去时态中。e.g. He didn't go home yesterday.
四、对do的理解易出错
例:Wedon’t (not do) our homework in the afternoon. 答案:don’tdo
解析:do是一个比较难理解的词,它有三个含义: a)是所有行为动词的总称;b)是助动词,无实义;c)是一个具体的行为动词“做,干”。此句中给出的do指“做,干”,not指把此句变为否定句,故须在do前加助动词don’t。
五、对主语的数判断有误
例:Li Ming with me are (be) in Beijing. 答案: is
解析:表面一看是“我和李明两个人在北京”,但with在此做伴随状语,不能做主语,故用is.
另外,宾语从句中,从句部分若是表示客观真理,不管主句是何时态,从句都要用一般现在时;在时间和条件状语从句中,主句表将来,从句要用一般现在时。
练习:
1 Jenny ____ in anoffice. Her parents ____in a hospital.
A work works B works work C work are working D is working work
2 One of the boys_____ a blackhat.
A have B there is C there are D has
3 We will go shopping ifit____ tomorrow.
A don't rain Bdidn't rain Cdoesn't rain Disn't rain
4 He said the sun ____in theeast and ____in the west.
A rose; set B rises; sets C rises, set D rise; sets
5 Wang Mei ____ music andoften ____ to music.
A like; listen B likes; listens C like; are listening D liking ; listen
6 Jenny____ English everyevening.
A has study B studies C study D studied
答案:1B 2D 3C 4B 5B 6B
1 I can take Li Ming therewhen he _____ ( come) to visit.
2 _____yoursister_____(know)English?
3Her home____ _____ ______(远离)her school.
4The pot_____(not look) likeyours very much.
5 Where_____you____(have)lunch every day?
6 Who_____(想要 )to go swimming?
7 ______she_____(do) thehousework every day?
8 Jenny and Dannyusually______(play) games in the afternoon .
答案:1comes 2 Does know 3is away from 4 doesn't look
5 do have 6 wants 7 does do 8play
补充知识点:
一.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 apencil. 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 isTom. 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, itis. 是的,它是。
②—What’s that? 那是什么? —It’s akite. 是只风筝。
二. 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’sbed. 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。
④Are these/those your apples? 这些(那些)是你的苹果吗?
Yes, they are. 是的,他们是。
三.不定冠词a和an
a和an都是不定冠词,表示一(个,支,本,块……)的意思,但不强调数量概念,而是强调类别,用来限定名词。
a用在辅音素开头的单数名词前,如:apencil(一支铅笔),a book(一本书);
an用在元音音素开头的名词前,如an eraser(一块橡皮)。如果名词前有修饰语,
用a还是用an,则以该修饰语的第一音素决定用a还是用an。如:
a clock 一座钟 an old clock 一座旧钟 a book 一本书 an English book 一本英语书
a nice apple 一个可爱的苹果 an apple 一个苹果
四. 名词+’s所有格
名词+’s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
表示两者各自拥有时,要在每个名词后加’s
Lucy and Lily’s mother 露茜和莉莉的妈妈(共同的妈妈,一个妈妈)
Lucy’s and Kate’s rooms 露茜和凯特的房间(各自的房间,两间房子)
五.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 towatch TV this evening. 我喜欢读书,但我今晚想看电视。
六.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。
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.
七.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:August2nd,2003(2003年8月2日)。
也可以用日+月+年来表示。
如:10thMay,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。
①She was born in 1989 ②Shewas born in August.
③She was born in August 1989. ④She was born on 2nd August,1989.
八. 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 2:30half past two
3:43 seventeen to four 4:38twenty-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 5:45a quarter to six
(6)时间前通常用at.
at 5 o’clock at 7:30 p.m.
九 关于时间的问法
(1)以when提问,“什么时候”可以是较长的时间段,也可以是较短的时间点
①When is your birthday? 你的生日是什么时候?
②My birthday is Dec. 29th. 我的生日是
这里就是指一天的时间段
①When do you go home? 你几点回家?
②I go home at 4:30 p.m. 我下午4:30回家.
这里when问的是具体的时间。
(2)具体几点我们通常用what time提问
①What time is it now? 现在几点了? or What’s the time? 几点了?
It’s 9:26. 现在九点二十六。
②What time is it by your watch? 你手表几点了?
It’s 8:36. Oh, It’s 50 minuteslate 8:36,哦,它慢了50分钟。
③What time do you get up? 你几点起床?
I get up at 6:00 a.m. 我早上6点起床。
十 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 IDcard,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.
十一 want用法
(1)想干什么用want to do sth
They want to join the sportsclub. 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 thepiano.
(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 , hedoesn’t
十二 人称代词
主格: Iwe you she he it they
宾格:me us you her him it them
形容词性物主代词:my our your her his its their
名词性物主代词: mine ours yours hers his its theirs