英语五种基本句型结构
一、句型1 Subject (主语)  Verb (谓语) 
这种句型中的动词大多是不及物动词,所谓不及物动词,就是这种动词后不可以直接接宾语。常见的动词如:work, sing, swim, fish, jump, arrive, come, die, disappear, cry, happen等。如:
1) Li Ming works very hard.李明学习很努力。
2) The accident happened yesterday afternoon.事故是昨天下午发生的。
3Spring is coming.
4) We have lived in the city for ten years.
二、句型2Subject (主语)  Link. V(系动词)  Predicate(表语)
这种句型主要用来表示主语的特点、身份等。其系动词一般可分为下列两类:
(1)表示状态。这样的词有:be, look, seem, smell, taste, sound, keep等。如:
1) This kind of food tastes delicious.这种食物吃起来很可口。
2) He looked worried just now.刚才他看上去有些焦急。
(2)表示变化。这类系动词有:become, turn, get, grow, go等。如:
1) Spring comes. It is getting warmer and warmer.春天到了,天气变得越来越暖和。
2) The tree has grown much taller than before.这棵树比以前长得高多了。
三、句型3Subject(主语)  Verb (谓语)  Object (宾语)
这种句型中的动词一般为及物动词, 所谓及物动词,就是这种动词后可以直接接宾语,其宾语通常由名词、代词、动词不定式、动名词或从句等来充当。例:
1) He took his bag and left.(名词) 他拿着书包离开了。
2) Li Lei always helps me when I have difficulties. (代词)当我遇到困难时,李雷总能给我帮助。
3) She plans to travel in the coming May Day.(不定式)她打算在即将到来的五一外出旅游。
4) I don’t know what I should do next. (从句)我不知道下一步该干什么。
注意:英语中的许多动词既是及物动词,又是不及物动词。
四、句型4 Subject(主语)Verb(谓语) Indirect object(间接宾语)Direct object (直接宾语)这种句型中,直接宾语为主要宾语,表示动作是对谁做的或为谁做的,在句中不可或缺,常常由表示的名词来充当;间接宾语也被称之为第二宾语,去掉之后,对整个句子的影
响不大,多由指的名词或代词承担。引导这类双宾语的常见动词有:buy, pass, lend, give, tell, teach, show, bring, send等。如:
1) Her father bought her a dictionary as a birthday present.她爸爸给她买了一本词典作为生日礼物。
2The old man always tells the children stories about the heroes in the Long March.
老人经常给孩子们讲述长征途中那些英雄的故事。cityofspring怎么读 上述句子还可以表达为:
1Her father bought a dictionary for her as a birthday present.
2The old man always tells stories about the heroes to the children in the Long March.
五、句型5 Subject(主语)Verb (动词)Object (宾语)Complement(补语)
这种句型中的宾语  补语统称为复合宾语。宾语补足语的主要作用或者是补充、说明宾语的特点、身份等;或者表示让宾语去完成的动作等。担任补语的常常是名词、形容词、副词、介词短语、分词、动词不定式等。如:
1You should keep the room clean and tidy. 你应该让屋子保持干净整洁。(形容词)
2) We made him our monitor.(名词)我们选他当班长。
3) His father told him not to play in the street.(不定式)他父亲告诉他不要在街上玩。
4My father likes to watch the boys playing basketball.(现在分词)
5) Yesterday I had a picture taken with two Americans.(过去分词)
 常见的动词有: tell, ask, advise, help, want, would like, order, force, allow等。
 注意:动词have, make, let, see, hear, notice, feel, watch等后面所接的动词不定式作宾补时,不带to。如:
1) The boss made him do the work all day.老板让他整天做那项工作。
2) I heard her sing in the next room all the time last night.昨天晚上我听见她在隔壁唱了一个晚上。
八大词类
1名词:名词是表示人,事物,地点或抽象概念的名称
Eg ; Boy  girl  children  people
She eats an apple every day. 
  I bought a dozen eggs in the market.
2动词:表示动作或动作中状态的词叫做动词
实义动词(Notional Verb)、系动词(Link Verb)、助动词(Auxiliary Verb)、情态动词,还可以分成及物动词和不及物动词(缩写形式分别为vt. 和vi.).
Eg ; She can dance and sing.
她能唱歌又能跳舞。(sing在此用作不及物动词。)
She can sing many English songs.
她能唱好多首英文歌曲。(sing用作及物动词。)
动词有五种形态
原形(Original Form)、第三人称单数形式(Singular Form in Third Personal)、过去式(Past Form)、过去分词(Past Participle)、现在分词(Present Participle)。
动词的基本形式
绝大多数动词都有五种基本形式:动词原形、一般现 在是第三人称单数、过去时、过去分词和现 在分词。
A 第三人称单数形式的构成
一般现在时主语是第三人称单数,谓语动词后要加ses,其变化规则与名词变复数的方法大体相同:
一般情况下只在动词后加s,如work-works,write-writes
s,x,sh,ch结尾的动词,后加es,如guess-guesses,mix-mix,finish-finishes,catch-catches
以辅音字母加y结尾的动词,改yi,如study-studies
注:不规则变化的有have-hasbe-arego-goesdo-does等。
B 现在分词的构成
一般情况下在动词后加ing,如study-studyingwork-working
以不发音的字母e结尾的动词,去“e”再加“ing”,如write-writingmove-moving
以一个元音字母和一个辅音结尾的重读音节结尾的动词,要双写最后字母再加“ing”,如get-gettingbegin-beginning
ie结尾的动词,一般将ie改为y,再加ing,如lie-lyingdie-dyingtie-tying
注:以I结尾的动词,尾音节重读时,双写I,如control-controlling;尾音节不重读时,双不双写都可以,如 travel-traveling(美)/travelling(英)。
C、过去式的构成
一般情况直接加ed,如ask-askedwork-worked
以不发音的e结尾,只加d,如love-loveddance-danced
以辅音字母加y结尾,把yi,如try-triedstudy-studied
以一个元音字母和一个辅音结尾的重读音节结尾的动词,先双末尾一个字母,再加ed,如stop-stoppedpermit-permitted
动词分类
类别
说明
例句
行为动词  Action Verbs
表示动作或状态,在句中能独立作谓语。
She has a new friend from Australia.  He takes the train every day.  He leaves for school at around seven.
连系动词  Link Verbs
不能独立作谓语,必须与表语一起构成谓语。
He is popular in school.  Twins usually look the same.  Trees turn green in spring.
助动词  Auxiliary Verds
不能独立作谓语,只能作主要动词一起构成谓语,表示否定、  疑问、时态或其他语法形式。
I don't want to go for adrive.(否定)  We are playing basketball.(进行时态)  Do you speak a little tomatoes ?(疑问)
情态动词  Modality Verbs
不能独立作谓语,只能和主要动词一起构成谓语,表示说话人  的语气情态。情态动词没有人称和数量的变化。
She can speak a little English.  You should drink more water.[1] 
一般现在时的用法
1) 表示经常性或习惯性的动作,常与表示频度的时间状语连用。
时间状语:every…,sometimes, at…,on Sunday,always,every day,usually,seldom
I leave home for school at 7 every morning.
2) 在时间和条件状语中代替将来、表示按规定将要发生的事情(动作)状态和感觉的动作
If you come this afternoon,we will have a meeting.
3) 表示格言或警句中
Pride goes before a fall. 骄者必败。
注意:此用法如果出现在宾语从句中,即使主句是过去时,从句谓语也要用一般现在时。
例:Columbus proved that the earth is round..
4) 现 在时刻的状态、能力、性格、个性
I don't want so much.
Ann Wang writes good English but does not speak well.
比较:Now I put the sugar in the cup.
I am doing my homework now.
第一句用一般现在时,用于操作演示或指导说明的示范性动作,表示言行的瞬间动作。再如:Now watch me,I switch on the current and stand back. 第二句中的now是进行时的标志,表示正在进行的动作的客观状况,所以后句用现在进行时。
一般过去时的用法
1)在确定的过去时间里所发生的动作或存在的状态。
时间状语有:yesterday,last week,an hour ago,the other day,in 1982等。
Where did you go just now
2)表示在过去一段时间内,经常性或习惯性的动作。
When I was a child,I often played football in the street.
Whenever the Browns went during their visit,they were given a warm welcome.
3)句型:
It is time for sb. to do sth "到……时间了" "该……了"
It is time sb. did sth. "时间已迟了" "早该……了"
It is time for you to go to bed. 你该睡觉了。
It is time you went to bed. 你早该睡觉了。
would (had) rather sb. did sth. 表示'宁愿某人做某事'
I'd rather you came tomorrow.
4) wish,wonder,think,hope 等用过去时,作试探性的询问、请求、建议等。
I thought you might have some. 我以为你想要一些。
比较:
一般过去时表示的动作或状态都已成为过去,现已不复存在。
Christine was an invalid all her life.
(含义:她已不在人间。)
Christine has been an invalid all her life.
(含义:她现 在还活着)
Mrs. Darby lived in Kentucky for seven years.
(含义:达比太太已不再住在肯塔基州。)
Mrs. Darby has lived in Kentucky for seven years.
(含义:现 在还住在肯塔基州,有可能指刚离去)
注意:用过去时表示现 在,表示委婉语气
1)动词want,hope,wonder,think,intend 等。
Did you want anything else
I wondered if you could help me.
2)情态动词 could,would.

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