酷兔英语
文章总共1页
一、词类、句子成分和构词法

1、词类:英语词类分十种:

名词、形容词、代词、数词、冠词、动词、副词、介词、连词、感叹词。

1、名词(n.): 表示人、事物、地点或抽象概念的名称。如:boy, morning, bag, ball, class, orange.

2、代词(pron.): 主要用来代替名词。如:who, she, you, it .

3、形容词(adj..):表示人或事物的性质或特征。如:good, right, white, orange .

4、数词(num.): 表示数目或事物的顺序。如:one, two, three, first, second, third, fourth.

5、动词(v.): 表示动作或状态。如:am, is,are,have,see .

6、副词(adv.): 修饰动词、形容词或其他副词,说明时间、地点、程度等。如:now, very, here, often, quietly, slowly.

7、冠词(art..):用在名词前,帮助说明名词。如:a, an, the.

8、介词(prep.): 表示它后面的名词或代词与其他句子成分的关系。如in, on, from, above, behind.

9、连词(conj.): 用来连接词、短语或句子。如and, but, before .

10、感叹词(interj..)表示喜、怒、哀、乐等感情。如:oh, well, hi, hello.

2、句子成分:英语句子成分分为七种:主语、谓语、宾语、定语、状语、表语、宾语补足语。

1、主语是句子所要说的人或事物,回答是"谁"或者"什么"。通常用名词或代词担任。如:I'm Miss Green.(我是格林小姐)

2、谓语动词说明主语的动作或状态,回答"做(什么)"。主要由动词担任。如:Jack cleans the room every day. (杰克每天打扫房间)

3、表语在系动词之后,说明主语的身份或特征,回答是"什么"或者"怎么样"。通常由名词、代词或形容词担任。如:My name is Ping ping .(我的名字叫萍萍)

4、宾语表示及物动词的对象或结果,回答做的是"什么"。通常由名词或代词担任。如:He can spell the word.(他能拼这个词)

有些及物动词带有两个宾语,一个指物,一个指人。指物的叫直接宾语,指人的叫间接宾语间接宾语一般放在直接宾语的前面。如:He wrote me a letter . (他给我写了一封信)

有时可把介词to或for加在间接宾语前构成短语,放在直接宾语后面,来强调间接宾语。如:He wrote a letter to me . (他给我写了一封信)

5、定语修饰名词或代词,通常由形容词、代词、数词等担任。如:Shanghai is a big city .(上海是个大城市)

6、状语用来修饰动词、形容词、副词,通常由副词担任。如:He works hard .(他工作努力)

7、宾语补足语用来说明宾语怎么样或干什么,通常由形容词或动词充当。如:They usually keep their classroom clean.(他们通常让教室保持清洁) / He often helps me do my lessons.(他常常帮我做功课) / The teacher wanted me to learn French all by myself.(老师要我自学法语)

☆同位语通常紧跟在名词、代词后面,进一步说明它的情况。如:Where is your classmate Tom ?(你的同学汤姆在哪里?)

3、构词法:英语构词法主要有:合成法、派生法和转换法。

1、合成法:如:spaceship, headache, basketball, playground等等。

2、派生法:(1)派生名词:①动词+er/or ②动词+ing ③动词+(t)ion ④形容词+ness ⑤其他,如:inventor, learner, swimming, congratulation, kindness, carelessness, knowledge

(2)派生形容词:①名词+y ②名词+ful ③动词+ing/ed ④friendly ⑤dangerous ⑥Chinese; Japanese ⑦English ⑧French ⑨German ⑩国名+(i)an 如:snowy, sunny, hopeful, beautiful, interesting, follwing, daily(每日的),nervous, delicious

(3)派生副词:①形容词+ly ②其它,如:slowly, angrily, full→fully, good→well, possible→possibly等等。

3、转换法:

(1)形容词→动词,如:dry(干燥的)→dry(弄干), clean(干净的)→clean(打扫,弄干净),等等。

(2)动词→名词,如:look, walk, rest, work, study, swim, go, talk等等。

(3)名词→动词,如:hand(手)→(传递),face(脸)→(面对)等等。

(4)形容词→副词,如:early→early, fast→fast等等。

(5)副词→连词,如:when(什么时候)→(当......时候),等等。

(6)介词→副词,如:in(到......里)→(在里面;在家),on(在...上)→(进行,继续),等等。

二、名词:

1、英语名词可分专有名词和普通名词两大类:

(1)专有名词是个别的人、地、物、团体、机构等的专用名称。

专有名词中实词的第一个字母要大写。

如:Beijing, Tom, the People's Republic of China(中华人民共和国)

专有名词如果是含有普通名词的短语,则必须使用定冠词the。如:the Great Wall(长城)

姓氏名如果采用复数形式,则表示该姓氏一家人(复数含义),如:the Greens( 格林一家人)。

(2)普通名词是许多人或事物的共有名称。如:pupil, family, man, foot.

普通名词又分为可数名词和不可数名词。

▲可数名词是可以用简单的数词进行计数的名词,如: box, child, orange;

▲不可数名词是不可以用简单的数词进行计数的名词。如:water, news, oil, population, information .

2、英语可数名词的单复数:英语可数名词有单数和复数两种形式。

(1)名词由单数变复数的基本方法如下:

①在单数名词词尾加s。如:map → maps,boy→ boys,horse→ horses, table→ tables.

②s,o,x ,sh,ch结尾的词加es.如:class→classes, box→boxes, hero→heroes, dish→dishes, bench→benches.

[注]:少数以o结尾的词,变复数时只加s。如:photo→photos, piano→pianos.

③以辅音字母加y结尾的名词,变y为i,再加es。如:family→families, city→cities, party→parties.

④以f或fe结尾的名词,变f或fe为v,再加es。如:shelf→shelves, wolf→wolves, life→lives, knife→knives.

(2)不规则变化:man→men, woman→women, sheep→sheep,tooth→teeth, fish→fish, child→children, ox→oxen, goose→geese

不可数名词一般没有复数形式,说明其数量时,要用有关计量名词。如:a bag of rice→two bags of rice, a piece of paper→three pieces of paper, a bottle of milk→five bottles of milk.

3、名词所有格:名词所有格表示所属关系,相当于物主代词,在句中作定语、宾语或主语。其构成法如下:

(1)表示人或其它有生命的东西的名词常在词尾加's。如:Childern's Day(儿童节), my sister's book(我姐姐的书)

(2)以s或es结尾的复数名词。只在词尾加'。如:Teachers' Day(教师节)

(3)有些表示时间、距离以及世界、国家、城镇等无生命的名词,也可在词尾加's. 如:

today's newspaper(今天的报纸), ten minutes' break(十分钟的课间休息),

China's population(中国的人口).

(4)无论表示有生命还是无生命的东西的名词,一般均可用介词of短语来表示所有关系。如:

a fine daughter of the Party(党的好女儿).

[注解]:① 's还可以表示某人的家或者某个店铺,如:my aunt's (我阿姨家), the doctor's(诊所)

② 两人共有某物时,可以采用 A and B's 的形式,如:Lucy and Lily's bedroom(露西和丽丽合住的卧室)

③ "of+名词所有格/名词性物主代词",称为双重所有格,如:a friend of my father's(我父亲的一位朋友), a friend of mine(我的一位朋友)

4、名词或代词作主语时和谓语之间的单复数的一致问题:

(1)谓语和谓语基本保持单复数的一致,即:主语是可数名词单数或不可数名词时,谓语动词用单数形式:如:The computer was a great invention.(计算机是个了不起的发明)The water in the glass is very cold.(玻璃杯里的水很冷)

(2)集体名词(如family, class, team, group, row, police, school等)做句子主语时,

① 如果表示整体概念,则谓语用单数形式,如:Class Three is a very good class.(三班是好班)

② 如果表示其中的所有成员时,则谓语用复数形式,如:Class Three have a map of China.(三班有张中国地图)

(3)Chinese, Japanese, fish, sheep, people等表示单个时谓语用单数,表示许多时,谓语用复数。如:There is a sheep in the yard.(院子里有只绵羊) / There are some sheep in the yard.(院子里有一些绵羊)

(4)maths, news等虽然有s结尾,但不是复数,因此谓语仍用单数:The news is very exciting. (这个消息令人兴奋)

(5)glasses, shoes, socks, trousers, gloves等名词往往用复数形式,故谓语用复数。如:

The trousers are very cheap and I want to take them.(裤子很便宜,我想买)

(6)a lot of 后跟名词复数时谓语用复数形式,跟不可数名词时谓语用单数形式。如:A lot of students are playing baseball now.(现在有许多学生在打垒球) A lot of time was wasted on that work.(大量的时间花在了那个工作上)(被动句)

(7)and 连接两个名词做主语时,谓语原则上用复数,但是两个名词若构成一个整体事物时,谓语则用单数。如:The teacher and his son are picking apples now.(老师和他的儿子在摘苹果) / Fish and chips is very famous food. (鱼和薯条是一种出名的食品)

(8) there be 句型中be的单复数一般由靠近的名词决定。如:There is a table and four chairs in the room.(房间里有一张桌子和四张椅子)

(9)用both...and...连接两个事物做主语时,谓语一般用复数。如:Both you and I are required to be here tomorrow.(你和我明天要求都来)

(10)主语中含有with的短语时,谓语单复数由with之前的人物决定。如:A woman with a 7-year-old child was standing at the side of the road. (一名妇女带着一个七岁的孩子(当时)就站在路边)

(11)either...or...或者 neither...nor...连接两个人物做句子主语时,谓语采用就近原则。如:Either you or he is right.(要么是你对,要么是他对。/你和他有一个人是对的) / Neither you nor I am going there.(你和我都不打算去那里)

(12)表示一段时间或长度概念的复数名词做主语时,谓语一般用单数。如:Two months is not a short time.(两个月不是个短时间)Two thousand kilometers is quite a long distance(距离).(两千千米是相当长的一段距离)

(13)主语中含有half of... / (three quarters)of... / all (of) the ....等词语时,谓语的单复数由名词确定,如:Over three quarters of the information on the Internet is in English.(因特网上四分之三以上的信息是用英语写的) / A third of the students were playing near the lake.(学生的三分之一(当时)正在湖边玩耍) / All of the water in these rivers has been polluted.(这些河流中的水已经被污染了)(被动句)

但是,population一词又有特殊情况: What's the population of China?(中国人口是多少?)(句子用单数) / Three quarters of the population in this city are Arabs(阿拉伯人).(这个城市四分之三的人口是阿拉伯人)(句子用复数)

5、部分名词用法辨析:

(1)sport、game、match、race 的区别:sport通常指"户外运动",以锻炼为主,概念较大;game意思是"运动、比赛",不管户内户外还是脑力体力,指以胜负为主的运动;match意为"竞赛、比赛",多指正式比赛;race主要表示"赛跑、赛马、赛车"。如:People all around the world enjoy sports.(全世界的人都喜爱运动) / The 2008 Olympic Games will be held in Beijing.(2008奥运会将在北京举行)(被动句) / Our school football team won the league match(联赛).(我们学校足球队取得了联赛冠军) / They were strong and won the boat race.(汤他们很棒,赢得了划艇比赛)

(2)festival、holiday、vacation的区别:festival"节日",指喜庆的日子或持续一段时间的文娱活动;holiday(假日、休息日),指法定假日或风俗习惯,复数可以表示一个较长的假期;vacation"假期",指学习或工作中一段长时间的休息。如:The Shanghai Television Festival will be held next month.(上海电视节将在下个月举行) / Sunday is a holiday and most people do not work.(星期天是个假日,多数人不工作) / What are you going to do during the summer vacation/holidays?(在暑期你打算做什么事情?)

(3)journey、tour、trip、travel的区别:journey指在陆地上(或海上或空中)进行的长途旅行,不知终点,含有辛苦的意思;tour指途中作短期逗留的巡回旅行,强调游览多处,常用来指观光等;trip通常指往返定时的短途旅行,如出差度假等;travel多指长期或长途的观光旅行,尤其指到国外,没有明确目的地,也作不可数名词,指旅行这一行为。如:He made up his mind to make the journey to Dunhuang.(他拿定主意要去敦煌旅行)/ He has gone on a walking tour.(他步行观光去了) / He took several trips to Shanghai last yeaar.(去年他去了上海好几次) / Did you go to Santiago(圣地亚哥) during your travels?(旅行期间你去圣地亚哥了吗?) / Travelling through thick forests is dangerous.(在密林里边穿行是很危险的)

(4)sound、noise、voice的区别:sound指各种声音;noise主要指"噪音";voice指人的"嗓音"。如:The noise of the street kept me awake in the night.(街上的喧嚣声让我彻夜难眠) / All of a sudden there was the sound of shots and a cry.(突然间传来几声枪响和一声尖叫) / The singer has lost her ringing voice as a result of a bad cold.(因为感冒的缘故,这个歌唱家失去了她银铃般的嗓音)

(5)fish的问题:指许多条鱼且不管种类时,用fish,单复数相同;fishes 指许多种类的鱼;fish指"鱼肉"时是不可数名词。如:There are many kinds of fishes in the pool. (池子里有很多种类的鱼)/ I prefer fish to meat.(与肉相比我更喜欢鱼)

三、代词:

1、代词的分类:英语中代词分为:人称代词、物主代词、反身代词、指示代词、关系代词、疑问代词、连接代词和不定代词等等。

2、人称代词:人称代词代替人和事物的名称,分为主格和宾格两种形式。

(1)主格用来作句子的主语、表语。如: I often go shopping on Sundays.(星期天我常去购物) / Are they from Brazil?(他们是巴西人吗?) / Where have they gone?(他们上哪儿去了?) / That's it.(就那么回事) / It's he!(是他!)

(2)宾格用来作及物动词或者介词的宾语。如:Who teaches you English this year?(今年谁教你们的英语?) / Help me!(救救我!) / We often write letters to her.(我们常给他写信)

(3)人称代词作表语或者放在比较状语从句连词than或as之后时,可以用主格形式,也可以用宾格形式,口语中大多用宾格。如:--Who is it?(是谁?) ?It's I/me.(是我。)

(4)三个不同人称同时出现,或者主语中包含"我"时,按照"you→he→I"的顺序表达。如:

Both he and I are working at that computer company.(我和他都在那家电脑公司上班) ?Who will go there?(谁要去那儿?) ?You and me.(你和我)

(5)人称代词it除了可以指人指物之外,还可以表示"时间、天气、温度、距离、情况"等含义,此外还可以作"非人称代词"使用,替代作主语或者宾语的不定式、动名词或者名词性从句。如:--What's the weather like today?(今天天气怎样?)-It's fine.(天气晴好) / --What's the time?(几点啦?) ?It's 12:00.(12点) / It's a long way to go.(那可要走好长的路) / It took him three days to clean his house.(打扫屋子花了他三天的时间) / It is very clear that the public want to know when these men can go into space.(很显然,公众想知道这些人什么时候能进入太空) / We found it very difficult to learn a foreign language well.(我们发觉要学好一门外语是非常困难的)

3、物主代词:说明事物所属关系的代词,分为形容词性和名词性两种。

1、形容词性物主代词只能作句子中名词的修饰语,后面要跟名词。如:

Is that your umbrella?(那是你的伞吗?) / I often go to see my aunt on Sundays.(我经常在星期天去看望阿姨) / They are their books.(是他们的书)

2、名词性物主代词相当于名词,既代替事物又表明所属关系,在句子中往往独立地作主语、宾语或者表语,后面千万不可以跟名词。如:

This is your cup,but where is mine?(这是你的杯子,可我的在哪儿?) / Your classroom is very big, but ours is rather small.(你们的教室很大,我们的相当小)

3、"of + 名词性物主代词"称为双重所有格,作定语时放在名词的后面。如:

A friend of mine came to see me yesterday.(我的一个朋友昨天来看我了) (指若干朋友中有一个来看我。)

[试比较] My friend came to see me yesterday.(我的朋友昨天来看我了)(指我的那个特定的朋友来看我。)

4、反身代词:表示谓语的动作与主语有关或者宾语补足语的动作与宾语有关。

1、反身代词在句子中作宾语表示反射(指一个动作回到该动作执行者本身)。如:

Don't play with the knife, you might hurt yourself.(不要玩刀子,那会割伤你的)

2、在句子中作同位语表示强调(即用来强调名词或代词的语气)。如:

The story itself is good. Only he didn't tell it well.(故事本身是好的,只是他没有讲好)

5、指示代词: 指示说明近处或者远处、上文或者下文、以前或者现在的人或事物。

单数 复数 含义

this(这个) these(这些) 指较近的人和物

that(那个) those(那些) 指较远的人和物

such (这样的人/物) 指上文提过的人和物

same (同样的人/物) 指和上文提过的相同的人和物

it (这人/这物) 指不太清楚是谁或者是什么时

指示代词既可以单独使用做句子的主语、宾语或表语,也可以作定语修饰名词。如:

What's this?(这是什么?) / That model plane is made of plastic.(那只模型飞机是塑料做的)(被动句) / Remember never to do such things.(记得永远不要做这样的事情) / Do the same as the teacher tells you. (按老师说的做)/ ---Who is it?(是谁?) ---It's me!(是我!)

6、关系代词:用来引导定语从句的代词叫关系代词,参见后面的定语从句

1、关系代词who 、which、 that 、whom 等,将定语从句和主句连接起来。英语中的关系代词一方面在从句中担任一定的成分,另一方面又起连接作用。

如:The student who is drawing a picture is in Grade One.(正在画画的学生是一年级的)

2、关系代词who / whom指人,如果作从句的宾语,则有时省略。如:

Do you know the man who is wearing a red hat? (你认识那个戴着红帽子的男人吗?)

3、关系代词which 指物,如果作从句的宾语,则有时省略。如:Have you found the book which you lost several days ago?(你找到几天前丢失的那本书了吗?)

4、关系代词that既可指人也可指物,如果作从句的宾语,则有时省略。如:Can you see the man/dog that is running along the river bank ?(你看得见顺着河跑的男人/狗了吗?)

7、连接代词:用来引导宾语从句主语从句或表语从句的连接词称连接代词。

英语中连接代词主要有:what(什么),who(谁),whom(谁),which(哪个),whose(谁的)。详见相应从句。

8、不定代词:代替或修饰不特指的人或事物的代词叫不定代词。

单数

含义 some

any no

none / / each

(every) one either,

neither so the other,

another 复合不

定代词

不可数

含义 much little,

a little all / / / / /

复数

含义 many few,

a few ones both others,

the others

※ 注:复合不定代词有12个:something(某事), someone(某人), somebody(某人), anything

(任何事), anyone(任何人), anybody(任何人), nothing(没事),nobody(没有人), no one(没有人), everything(一切), everyone(每个人), everybody(每个人).

(1)some和 any 的用法:

some一般用于肯定句中,意思是"几个"、"一些"、"某个"作定语时可修饰可数名词或不可数名词。如:I have some work to do today. (今天我有些事情要做)/ They will go there some day.(他们有朝一日会去那儿)

some 用于疑问句时,表示建议、请求或希望得到肯定回答。如:Would you like some coffee with sugar?(你要加糖的咖啡吗?)

any 一般用于疑问句或否定句中,意思是"任何一些"、"任何一个",作定语时可修饰可数或不可数名词。如:They didn't have any friends here. (他们在这里没有朋友)/ Have you got any questions to ask?(你有问题要问吗?)

any 用于肯定句时,意思是"任何的"。Come here with any friend.(随便带什么朋友来吧。)

(2)no和none的用法:

no是形容词,只能作定语表示,意思是"没有",修饰可数名词(单数或复数)或不可数名词。如:There is no time left. Please hurry up.(没有时间了,请快点) / They had no reading books to lend.(他们没有阅读用书可以出借)

none只能独立使用,在句子中可作主语、宾语和表语,意思是"没有一个人(或事物)",表示复数或单数。如:None of them is/are in the classroom.(他们当中没有一个在教室里)

I have many books, but none is interesting.(我有很多的书,但没有一本是有趣的)

(3)all和both的用法:

all指三者或三者以上的人或物,用来代替或修饰可数名词;也可用来代替或修饰不可数名词。

both指两个人或物,用来代替或修饰可数名词。all和both在句子中作主语、宾语、表语、定语等。如:I know all of the four British students in their school.(他们学校里四个英国学生我全认识) / --Would you like this one or that one? ?Both.(你要这个还是那个?两个都要。)

all和both既可以修饰名词(all/both+(the)+名词),也可以独立使用,采用"all/both + of the +名词(复数)"的形式,其中的of 可以省略。如:All (of) (the) boys are naughty.(是男孩都调皮)

(4)every和each用法:

every是形容词,只能作定语修饰单数名词,意思是"每一个",表示整体概念;

each是形容词、代词,可用作主语、宾语、定语等,意思是"每个"或者"各个",表示单个概念;each可以放在名词前,可以后跟of短语,与动词同时出现时要放在"be动词、助动词、情态动词"之后或者行为动词之前

every和each都用作单数理解,但是下文中既可以用单数的代词(如he/him/his)也可以用复数的代词(如they/them/their)替代。如:Every one of the students in his class studies very hard.(他班上每个学生学习都很用功) / They are very busy. Each of them has something to do.(他们很忙,人人都有事干)

(5)either和neither的用法:

either意思是"两个中间的任何一个";neither是either的否定形式,意思是"两个都不"。

neither和either在句子中可作主语、宾语和定语等,都用作单数。如:I don't care much for what to drink. Either of the two will do. (我不介意喝些什么,两个之中随便哪个都行) / --Will you go there by bus or by car? ?Neither. I will go there by train.(你坐公车去还是坐轿车去?一个都不坐,我坐火车去。)

(6)other、the other和another的用法:

other意思是"另一"、"另一些",有复数形式。在句子中可作主语、宾语和定语。another意思是"另外"、"又一个",表示增加,在句中可作宾语和定语。如:

Some girls are singing under the big apple tree and others are sitting on the grass talking.(有些女孩在大苹果树下唱歌,别的就躺在草地上说话) / You have had several cakes. Do you really want another one?(你已经吃了好几块饼子了,你真的还要一块?) / I want another four books.(我还要四本书)

another(另外的,再一,又一)与the other(另外的一个) 主要从数量上区分,只有两个时用the other,在原先基础上增加用another。如: This is one of your socks. Where is the other one?(这是你的一只袜子,还有一只呢?) / I have eaten 4 cakes, but I still want another.(我已经吃了4块蛋糕,但是我还要以块。)

others与the others的主要区别:others指"剩余的人/物"(指大部分);the others指"其余的人/物",(指全部)。如:A few students are playing soccer while others are watching them.(有几个学生在踢足球,其他一些人在观看) / Two of the ten boys are standing and the others are sitting round them.(十个男孩中有两个站着,其他人都围着他们坐着。)

(7)many和much的用法:

many意思是"很多",与可数名词复数连用;much意思是"很多",与不可数名词连用。它们在句中可作主语、宾语和定语等。如:I don't have many friends here.(在这里我没有很多的朋友。) /Many died in the bus accident.(许多人在公交车祸中丧失) / We can learn much with the help of him.(在他的帮助之下我们能学到很多)

many和much一般用于否定句,肯定句中通常用a lot of 或者lots of; many / much用于肯定句时可以在前面加上so、very或too.如: There are a lot of people on the playground.(操场上有许多的人)/ They haven't got much work to do.(他们没有多少事情可做) / There are too many people in the room.(房间里人太多了。)

文章总共1页
文章标签:初中英语