中考英语语法详解:The用法的

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下面是小编整理的中考英语语法详解:The用法的,本文共8篇,欢迎您阅读分享借鉴,希望对您有所帮助。本文原稿由网友“照耀吖”提供。

篇1:中考英语语法详解:The用法的

中考英语语法详解:The用法的归纳

1 表示特指的人或物

例:Please hand me the key on the desk. 请把桌上的钥匙递给我。

The girl in red is his sister. 穿红色衣服的女孩是他妹妹。

The building over there is the tallest in the town. 那边那幢大楼是这个城里最高的。

I like the music of the film. 我喜欢这部电影的音乐。

2 表示双方都知道的或心中明白的.人或物

例: Shut the door, please. 请关门。

Has he returned the book? 那本书他还了吗?

Take the blue one, it is cheaper. 拿那个蓝的,它便宜些。

3 第二次提到

某人或某物第一次提到时用不定冠词,第二次提到时要用定冠词。

例:He saw a house in the distance. Jim's parents lived in the house. 他看见远处有一所房子,吉姆的父母就住在那所房子里。

There was once an old fisherman. The old fisherman had a cat. The cat was white. 从前有一个老渔夫。这个老渔夫有一只猫。这只猫是只白猫。

4 用在世界上独一无二的名词前

the sun太阳, the earth地球, the moon月亮,

the sky天空, the world 世界

例:The moon goes round the earth. 月亮绕着地球转。

There is not any cloud in the sky. 天空中没有一丝云彩。

It was a fine day in spring. The sun shone brightly. 这是一个晴朗的春日,阳光灿烂。

He is the richest man in the world. 他是世界上最富的人。

5 用在表示方向、方位的名词前

the east东方,the west西方,the south南方,

the north北方,the right右边,the left左边

例:The birds are flying to the north. 这些鸟向北方飞去。

The moon rises in the east and sets in the west. 月亮从东方升起,在西方落下。

The wind was blowing from the south. 风从南方吹来。

She lived to the west of the Summer Palace. 她住在颐和园的西边。

Walk along the road and take the first turning on the right. 沿着这条路往前走,在第一个路口往右拐。

He stood at the back of the door. 他站在门背后。

提示

方位词成对使用构成平行结构时,不用定冠词。

例:The river is two thousand kilometers long from west to east. 这条河自西向公里长。

They traveled through the country from south to north. 他们自南向北在这个国家旅行。

篇2:中考英语语法详解:as与which的用法区别

中考英语语法详解:as与which的用法区别

引导非限制性定语从句时,有时两者可互换。如:

I live a long way from work, as you know. 我住得离工作单位很远,这你是知道的。

1. 通常要用as的场合

①当从句位于主句前面时,只用 as。如:

As is known to everybody, the moon travels round the earth once every month. 月球每月绕地球转一周,这是每个人都清楚的。

②用于such, as, the same后引导限制性定语从句时,只能用as。如:

I never heard such stories as he tells. 我从未听过他讲那样的故事。

This is the photo which shows my house. 这张照片拍的是我的住宅。

2. 两者的'细微区别

①as引导的非限制性定语从句应与主句在意义上和谐一致,which无此限制。如:

He went abroad, as was expected. 他出国了,这是大家预料到的。

He went abroad, which was unexpected. 他出国了,这让大家感到很意外。(不用as)

②as引导非限制性定语从句时,先行词通常不能是主句中某个具体的词,而应是整个句子、整个短语或某个短语推断出来的概念,而which 则无此限制。如:

The river, which flows through London, is called the Thames. 这条流经伦敦的河叫泰晤士河。(不用as)

③当as引导非限制性定语从句作主语时,其谓语通常应是连系动词,而不宜是其他动词,而 which则无此限制。如:

She has married again, as seemed natural. 她又结婚了,这似乎很自常。

She has married again, which delighted us. 她又结婚了,这使我们很高兴。(不用as)

篇3:英语语法详解

英语语法详解 --ed分词(四)

不定式、-ING分词和-ED分词三者间的关系

一、动词不定式与-ING分词的区别

1. 作宾语时,-ING分词表示抽象的、一般性或习惯性的和连续性的动作,而不定式则表示某次具体动作,特别是将来的动作

I like playing football. I would like to play football this afternoon.

1) The school cannot tolerate on exams.

[A] cheating [B] to cheat [C] be cheated [D] being cheated

2) News of success keeps in.

[A] pouring [B] to pour [C] poured [D] to be pouring

3) Long [A] before the dawn [B] of recorded [C] history, humans celebrated to harvest [D] their crops.

2. 作定语时,-ING表示正在进行的动作,用-ING的完成时表示动作的完成;不定式表示未来发生

4) We were overjoyed at the news of China another man-made satellite.

[A] having launched [B] to have launched [C] to launch [D] launched

5) The applicants interviewing [A] are required to [B] bring all the necessary papers [C] two days later [D] .

6) Sorghum(高梁) leaves [A] occasionally contain [B] enough hydrocyanic acid killing [C] livestock(牲畜) [D] .

3. 当谓语动词是进行时的时候,用不定式而不用-ING分词作宾语

It's beginning to snow you.         It starts raining.

I'm considering how to go(where to go, what to do).        I considered emplying Mr.Wang but

decided that Mr.Chen was more suited

to the job.

4. 在remember,forget等词后,如果跟-ING分词,表示-ING分词的动作发生在主要谓语之前;如果跟不定式则表示不定式的.动作发生在主要谓语动作之后

I remember telling her that last night. (“告

诉”发生在“记得”之前)        He remembered to tell her that when she

came back. (“记得”发生在“告诉”之前)

I'm sorry I forgot to give you the message. (主

语动词表示的动作“忘记”发生在不定式表

示的动作“给带口信”之前)        Why! I have such a bad memory. I forgot

giving the message last night. (-ING分词

表示的动作“给带口信”发生在谓语动词表

示的动作“忘记”之前)

5. stop, go on和leave off之后跟接动词不定式和-ING分词所表达的意义有所不同

They stopped (talking) to work. [停下(其他动作)来工作]

They stopped working. [停下工作(来干其他动作)]

Workers went on discussing the problem. [工人继续讨论这一问题]

Workers went on to discuss the problem.[工人们停下来其他事,继续讨论这一问题]

He left off writing.[他停下写作(去干其他事)]

He left off to write.[他停下(其他事)来写作]

6. … used to后跟不定式和-ING分词,后跟不定式有两种情况:一种是used to是固定用法表示“过去经常干……”;另外一种情况是use的被动词态“be used”后跟不定式;后跟-ING分词的情况有一种,那就是当used to中的used是形容词时,to后跟名词或-ING分词

7) When he was in the plastic plant, he together with the workers.

[A] has worked [B] had worked [C] had been worked [D] used to work

8) You will soon this climate and then the changes in temperature will not affect you.

[A] get used to[B] get to[C] get over[D] get on with

9) Mr. Anderson used to jogging [A] in the crisp morning [B] air during [C] the winter months [D] , but now he has stopped.

7. 一般情况下,for后边跟接there to be,而of后边则跟接there being

10) It is fairly common in Africa for there an ensemble of expert musicians surrounded by others who join in by clapping, singing, or somehow adding to the totality of musical sound.

[A] to be [B] being [C] to have been [D] having been

8. be+形容词后面要跟动词不定式作状语,而不用-ING

It is very difficult to manage the company.

篇4:英语语法详解

英语语法详解 --ING分词(二)

二、作表语的-ING分词

Seeing is believing.

His aims are learning two foreign languages and applying the theory he has learned to practice.

三、-ING分词作动词宾语

1. 一类是动词或短语后边跟宾语的非限定性动词只能是-ING分词,如:acknowledge, admit(坦白,承认), advise, advocate, anticipate, appreciate, avoid, can't help, consider, contemplate(深思), delay, deny, dislike, enjoy, escape(躲过,避开), excuse, fancy, finish, give up, imagine, include, keep on, justify, mean(意味着,等于), mind(在乎), miss, postpone, practise, prohibit, put off, quit, recall, regret, resist, resume, risk(冒险干…), suggest, threaten。

5) By taking the back way he escaped .

[A] to be seen [B] have been seen [C] seeing [D] being seen

6) I came late and missed Jack winning.

[A] to see[B] seeing[C] see[D] seen

7) “I see our boss coming down the hall.”

“Then we'd better quit and get down to business.”

[A] talking[B] to talk[C] from talking[D] having talk

8) The young doctor first [A] practised to use [B] the needles on [C] his own [D] wrist.

9) Some experts have advocated to bring [A] that country into [B] the talks, to revive the intermittent dialogue [C] that began [D] after the 1967 Middle East War.

2. 另一类动词后边作宾语的非限定性动词可以是-ING分词的动名词,也可以是动词不定式,如:attempt, begin, can't bear, cease, continue, deserve, endure, forget, go on, hate, intend, like, love, need, neglect, omit, plan, prefer, propose, regret, remember, start , stop, try等。(动词后接-ING和不定式时在用法上的.区别在下一章讲)

10) “What's wrong with Henry?”“He needs .”

[A] cheer up[B] to be cheer up[C] cheering up[D] to cheered up

11) Any such news would start her .

[A] to worry[B] worrying[C] worry[D] worried

3. -ING分词作宾语还有下一结构,即用it代表-ING分词,而把-ING分词短语放到句子的后边去

I consider it worthwhile spending ten thousand yuan on the furniture./Marry fount it marvellous having a journey with him.

四、-ING结构作介词的宾语

几乎所有介词,不管是单个介词还是介词词组,不管它们是谓语动词的组成部分与否,都能用-ING分词的动名词作其宾语。所以,-ING结构作介词宾语的时候很多。-ING结构一般作介词短语的宾语,主要有以下搭配关系

1. 动词+介词+ -ING

12) Scientists measure the hardness [A] of a material [B] by comparatively [C] with a table of ten well-known [D] metals.

13) Her mother did not [A] approve of her to go [B] to the party without dressing [C] formally [D] .

14) Although many women's colleges [A] have been coeducational [B] , other universities remain committed to keep [C] their facilities separate [D] .

15) We insist on you leave [A] the place before [B] any further [C] disturbances take place [D] .

2. 名词(形容词,不及物动词)+介词to(不要把它视为动词不定式的标志)。下面是大纲中所列短语中的“to”为介词:(be) contrary to (与…相反),object(objection)to (反对), with a view to (为…起见),(be) opposed to (反对), in contrast to (与…成对比),be used to (习惯于), be exposed to, be dedicated to (致力于),resort to (诉诸于), as to (关于), be accustomed to (习惯于), be devoted to (献身于), be committed to (委身于), react to (对…反应), with regard to (关于), look forward to (期待), contribute to (贡献),owe to由于,归功于等

16) I have no objection the evening with them.

[A] to spend [B] to spending [C] to have spent [D] to have to spend

17) Why do you object to the direction?

[A] following [B] follow [C] have follow [D] have been followed

18) Mr. Brown often wore [A] a heavy coat [B] because he was not used to live [C] in such a [D] cold climate.

19) Livy was the [A] only great historian of the time [B] , and he devoted his attention to give [C] the world splendid [D] pictures.

3. 动词+副词+介词+ -ING

I look forward to her coming soon.

4. 形容词(或具有形容词性质的-ED分词)+介词+ -ING

I am proud of having such a son.

He is greatly honored of shaking hands with the President.

It's impossible for him finishing the task in such a short time.

He is interested in playing table tennis.

5. 表示征询意见的 “How about…?”, “What…about?”

How about going there?

What about having a concert?

20) How about to the movies tonight?

[A] going[B] if go[C] to go[D] if we go

6. 前面省略了介词in的-ING惯用法

The two children are busy doing their homework.

Mr. Smith has difficulty fulfilling the task.

There is no use going over the lessons before the night of exam.

He has spent a lot of time preparing the exam for the postgraduate.

Xiao Li lost no time catching up with his classmates.

There is no point arguing with him.

篇5:英语语法详解

英语语法详解 --ed分词(二)

三、用作状语的-ED分词

这样的-ED分词通常来自及物动词。-ED分词用作状语时,跟-ING分词作状语时一样,修饰主句的谓语动词,意义上相当于状语从句,表示时间,条件,原因,伴随状况等。-ED分词结构作状语,前边往往可以加when,while,if,as if,though。这时,我们可以把-ED分词结构理解为一个省略句,即省去了“主语和be的变化形式”。一般说来,这种结构的逻辑主语必须与主句的'主语一致。

1. 表示时间

4) Inaugurated a second time on March 4, 1901, focused on domestic rather than foreign policies.

[A] William McKinley's new term looked forward to and

[B] the new term looked forward to William McKinley and

[C] looking forward to a new term was William McKinley

[D] William McKinley looked forward to a new term

2. 表示条件

5) under a microscope,a fresh snowflake has a delicate sixpointed shape.

[A] Seen [B] Sees [C] Seeing[D] To see

6) to steel,chromium(铬) increases the metal's hardness.

[A] Added [B] In addition [C] Adding[D] Adds

7) enough food and water, they could have beaten the enemy.

[A] Being given[B] Given[C] Give

[D] To give

3. 表示原因

8) Encouraged by his mother, .

[A] art was studied in Florence by John Singer Sargent

[B] Florence was where John Singer Sargent studied art

[C] the study of art in Florence by John Singer Sargent

[D] John Singer Sargent studied art in Florence.

9) by the decision, the lawyer quickly left the court room.

[A] Angering [B] Having angered [C] Being angry [D] Angered

10) Written in great haste, .

[A] Jim made a lot of mistakes in the report [B] there are plenty of errors in the report

[C] we found several mistakes in his report [D] the books is full of errors.

4. 表示伴随状况:-ED分词结构作状语表示伴随状况时,没有适当的分句可替换

11) was not incorporated as a city until almost two centuries later,in 1834.

[A] Settling Brooklyn,the Dutch [B] The Dutch settled Brooklyn

[C] Brooklyn was settled by the Dutch [D] Settled by the Dutch,Brooklyn

12) Anna was reading a piece of science fiction, completely to the outside world.

[A] being lost[B] having lost[C] losing[D] lost5. 表示让步

13) Francis Preston Blair,Jr., born in Kentucky,lived and practiced law in Missouri.

[A] was [B] he was [C] although [D] who he was 6. 表示结果

14) in all parts of the state, pines are the most common trees in Georgia.

[A] Found [B] Finding them [C] To find them [D] They are found

7. 表示目的

15) They should be kept here this matter.

[A] informing about

[B] be informed

[C] be informed of

[D] informed of8. 表示背景和衬托

16) Known for her caricatures(漫画) of the United States society, .

[A] Peggy Brown wrote and illustrated books for children

[B] the writing and illustrating of books for children by Peggy Brown

[C] children's books were written and illustrated by Peggy Brown

[D] Peggy Brown's writing and illustrating of children's books

17) Well known as a splendid pianist in Boston, .

[A] we all are pleased to hear Mr. Anderson's concerto(小协奏曲)

[B] a concerto was composed by Mr. Anderson

[C] Mr. Anderson composed a concerto

[D] Mr. Anderson's concerto was composed

四、-ED分词在复合结构中

Don't get your schedule changed; stay with us in this class.

Peter had his gas and electricity turned on when he moved into his new apartment last month.

He kept his mouth shut and stayed where he was.(他闭口不言,呆在原地不动。)

They are talking about the experiment made in the new lab.

篇6:英语语法详解

英语语法:age的几条用法说明

1. 表示“年龄”,注意以下常见表达:

He’s ten (years old). / He’s ten years of age. 他10岁。

How old is he? / What’s his age? / What age is he? 他多大年纪?

I have a son (of) your age. / I have a son the same age of you. 我有一个像你这样大小的儿子。

Their ages are ten and twelve. 他们的年龄分别是10 岁和12岁。

2. 表示“在……年龄时”,英语通常用“at the age of+数字”,有时可省略成“at age+数字”,或只用“at+数字”。如:

She was left a widow at the age of thirty. 她30岁时成了寡妇。

In Britain, schooling starts at age 5. 在英国,教育从5岁开始。

Larry passed university exams at sixteen. 拉里16岁时就通过大学考试。

有时也说at…years old。如:

At fifteen years old he left school. 他15岁时中学毕业了。

另外,at the age of…这类短语通常用作状语,但有时也可用作状语。如:

His first appearance on stage was at the age of three. 他3岁时初次登台。

3. 汉语中说“他年纪大(轻)”,在英语中不能直译为:His age is old (young). 可译为:He is old (young). 同样地,英语中可以说 at the early age of 30(年仅30岁),一般不说 at the young age of 30。但有趣的是,英语中通常不说 young age, 但却可以说 old age(老年)和 middle age(中年)。如:

She didn’t get married until she was well into middle age. 她步入中年以后才结婚。

The fear of death obsessed her throughout her old age. 她晚年一直受着死亡恐惧的困扰。

4. 表示“时期”“时代”,多用单数形式;在口语中可引申指“很长时间”,可用复数形式也可用单数形式。如:

The 18th century was the golden age of the novel. 18世纪是小说的黄金时代。

It’s ages [an age] since we last met. 我们好久没见面了。

Haven’t seen you for ages [an age]. 好久不见了。

英语语法:parent和twin是指一个人还是两个人

1. parent的意思是“父亲”或“母亲”,指父母两人当的一个,若要指父母双亲,要用复数形式parents。如:

You must take on the duties of a parent. 你必须承担起为人父母者的责任。

Parents should be alert to sudden changes in children’s behavior. 父母应该留心孩子行为的突然变化。

2. twin的意思是“双胞胎之一”,若指双胞胎中的两个人,要用复数形式twins。如:

They must be twins. 他们一定是双胞胎。

I can’t tell one twin from the other. 我分不出双胞胎中谁是谁。

英语语法:词作定语与形容词作定语有何区别

1. 名词作定语强调“类指”,而名词所有格则表示“特指”。如:

Please don’t put the dog’s food under the table. 请不要把狗食放在桌子下面。

Dog food costs as much as meal. 狗的食品和人的食品一样贵。

第一句中的dog’s food特指给某一条狗食用的,第二句中的dog food表类别,指供狗食用的食品,而并非只给某条狗食用。

2. 名词作定语表明实质,形容词作定语则起描述与限定作用。如:

silver coins 银币(silver表明本质,即指用银做的币)

silvery hair 银白的头发(silvery起描绘作用,为描绘性形容词)

a luxury hotel 豪华饭店(指官方为饭店定的级别很高,但让人的感爱未必豪华)

a luxurious hotel 豪华的饭店(只是说其豪华,表明话者的感受,其级别未必很高)

3. 有时采用名词作定语,可能是因为没有相应的派生形容词,此时使直接用名词作定语,或与之构成合成词。如:

school gate 校门(名词school没有相应的形容词)

tomato sauce番茄汁(名词tomato没有相应的形容词)

4. 有时在汉语看来似乎要用形容词作定语,但英语习惯上却要用名词作定语。如:

science fiction 科幻小说 (不说 scientific fiction)

health situation 健康状况(不说healthy situation)

convenience food 方便食品(不说convenient food)

看过英语语法的人还看了:

1.英语语法大全之16种时态讲解

2.英语语法句子结构大全

3.语法英语

4.英语语法讲解

5.最基本的英语语法

篇7:中考英语语法详解:冠词和数词

一、冠词的用法

冠词是虚词,放在名词之前,用来说明名词指的人或事物。冠词有两种。

A(an)叫不定冠词,the叫定冠词。A用在辅音之前,an用在元音之前。

1. 不定冠词的用法

(1)a和an均用在单数名词之前,表示某一类人或事物。例如:

John is a student.

Mary is an English teacher.

(2)指某一类人或事物中的任何一个。例如:

A steel worker makes steel.

Pass me an apple, please.

(3)指某人或某物,但不具体说明何人或和物。例如:

A student wants to see you.

A girl is waiting for you outside.

(4)表示“每一”的意思,相当于every。例如:

Take the medicine three times a day.

They go to see their parents once a week.

2.定冠词用法

(1)特指某(些)人或某(些)事物。例如:

The book on the desk is an English dictionary.

Beijing is the capital of China.

(2)指说话人和听话人都熟悉的人或事物。例如:

Open the door, please.

Jack is in the library.

(3)上文提到过的人或事物。例如:

Yesterday John’s father bought him a new bike. The bike cost him 200 yuan.

(4)表示世界上独一无二的事物。例如:

The sun rises in the east and sets in the west.

(5)用在序数词和形容词最高级之前。例如:

Shanghai is the biggest city in China.

January is the first month of the year.

(6)用在某些形容词之前,表示某一类人或事物。例如:

The nurse is kind to the sick.

We should take good care of the old.

(7)用在某些专有名词之前和某些习惯用语中。例如:

the Great Wall, the Summer palace, in the morning, in the open air等。

(8)用在姓氏复数之前,表示“某某一家人”,“某某夫妇”。例如:

the Browns, the whites等。

3.不用冠词的情况

(1)某些专有名词,抽象名词和物质名词前一般不用冠词。例如:

China, Canada, Japanese, glass, water, love等。

(2)名词前已有作定语用的this, that, my, your, whose, some, any, no, each, every等代词时,不用冠词。例如:

That is my cap.

I have some questions.

Go down this street.

(3)复数名词表示一类人或事物时,不用冠词。

They are workers.

We are students.

(4)称呼语前不用冠词,表示头衔和职务的名词前也不加冠词。例如:

I don’t feel well today, Mother.

Bush was made president of the U.S.

(5)三餐饭的名称前,球类活动,学科和节目名词前,常不用冠词。例如:

I have lunch at home.

He often plays football after class.

We have English and maths every day.

(6)在某些固定词组里,名词之前常不用冠词。例如:

By air, at night, at home, go to bed, go to school, on foot, from morning till night 等。

篇8:中考英语语法详解六:动词

实义动词及用法

实义动词也叫行为动词,是四类动词中唯一能独立作谓语的一类动词。根据其句法功能可以分为及物动词和不及物动词两类。

1、及物动词

及物动词本身意义不够完整,需要后接宾语才能使其意思完整。

1)动词+宾语,构成主谓宾句型。

例如:Could you please clean the blackboard? 请你擦黑板好吗?

We learn English every day. 我们每天学习英语。

2)动词+直接宾语+to/for+间接宾语 / 动词+间接宾语+直接宾语,构成主谓双宾句型。有的动词必须在后面带表示人的间接宾语和表示物的直接宾语,即两个宾语才能表达完整的意思。

例如:Who teaches you English? 谁教你们英语?

Please pass me the book.= Please pass the book to me.请把那本书递给我。

My mother bought me a snow globe on my birthday.

= My mother bought a snow globe for me on my birthday.

我过生日时我妈买给我一个雪球。

常见的带双宾语的动词有:pass, give, bring, buy, get, leave, lend, make, cook, teach, tell, write, read, return, ask, show等。

3)动词+宾语+宾语补足语,构成主谓复宾句型。有的动词必须在宾语后再加上形容词、副词、名词、不定式、-ing形式、介词短语等做宾语补足语,构成复合宾语,句子意思才能够表达完整。

例如:Please keep the door open. 请让门开着。(形容词open做宾补)

I often see the children play in the park。我经常看见孩子们在公园里玩。(不带to的不定式play做宾补)。

You can call me Mrs Jones.你们可以称呼我琼斯夫人。(名词Mrs Jones做宾补)

动词see, hear, watch, make, let, have, notice, find等经常以动词不定式或-ing形式做宾补。

2、不及物动词

1)不及物动词自身意思完整,无需再接宾语。

例如:Horses run fast。马儿跑得快。

He sings well. 他唱得好。

2)很多不及物动词也可以用作及物动词,还有的不及物动词后带上某个介词就成了带宾语的及物动词。

例如:They are reading. 他们在朗读。(read为不及物动词)

They are reading English. 他们在朗读英语。(read为及物动词)

He is waiting at the bus stop.他在公交车站等。(wait为不及物动词)

He is waiting for me at the bus stop.他在公交车站等我。(wait for为及物动词,带me做宾语)

三、连系动词

连系动词本身有词义,但不能单独作谓语,必须和其后面的表语一起构成合成谓语,说明主语的性质、特征、状态或身份。

常见的连系动词有be, become(变得、成为), get(变得), look(看起来),seem(似乎、好像),turn(变得),sound(听起来),smell(闻起来),taste(尝起来),feel(摸起来)等。除be以外的连系动词大多数时候是实义动词,他们用作连系动词时多数没有进行时态,也没有被动语态。

例如:He is angry.他生气了。

He got angry at the news.听到这个消息他生气了。

That sounds good.那听起来不错。

Trees turn green when spring comes.春天来临,树叶转绿。

China is getting stronger and stronger.中国正变得越来越强大。

四、助动词

助动词本身没有词义或意思不完整,不能单独作谓语。它们的主要作用是帮助构成时态、语态、疑问句或否定句等。

1、助动词be(am, is, are, was, were)

1) be+doing(现在分词), 构成进行时

例如:They are listening to music.他们在听音乐。(be的现在时形式帮助构成现在进行时)

They were walking down the street when the UFO landed.(be的过去时形式帮助构成过去进行时)

2)be+done(及物动词的过去分词), 构成被动语态

例如:The light bulb was invented by Thomas Edison.电灯泡是由托马斯。爱迪生发明的。(be的过去时形式帮助构成过去时的被动语态)

The classroom is cleaned every day.教室每天打扫。(be的现在时形式帮助构成现在时的被动语态)

The problem will be solved next week.这个问题将在下周得到解决。(be的将来时形式帮助构成将来时的被动语态)

2、have (has, had)

1)have/has/had+done(动词的过去分词),构成完成时态。

例如:They have already done their homework.他们已经完成作业。(have+过去分词构成现在完成时)

He hasn’t come yet.他还没有回来。(has+过去分词构成现在完成时)

The bus had gone when I got to the bus stop.我到达车站时公交车已经离开。(had+过去分词构成过去完成时)

2)have/has/had+been+doing(动词的现在分词),构成完成进行时态。

例如:How long have you been collecting shells?你收集贝壳有多长时间了?

He has been studying English since five years ago.他从5年前开始就一直在学习英语。

3、助动词do/ does/ did

助动词do/ does/ did主要帮助构成疑问句,也可用于倒装句、强调句或代替上文提到过的行为等。他们的否定式don’t/ doesn’t/ didn’t帮助构成否定句。

例如:Does he often play sports after school?他经常放学后做运动吗?

We don’t speak Japanese.我们不说日语。

Did they visit the Palace Museum on their last day off?他们上个休息日参观故宫了吗?

She didn’t watch TV yesterday evening.她昨晚上没看电视。

4、助动词will, shall, would, should

助动词will, shall主要用于构成一般将来时,其中will可用于各人称,而shall一般只用于第一人称。would,should是will,shall的过去式,可以用于构成过去将来时,但很多时候被用作情态动词。

例如:There will be more trees and less pollution in the future.将来会有更多的树木,更少的污染。(帮助构成一般将来时)

Shall we go to the park on the weekend?我们周末去公园好吗?(一般将来时,用于提出建议)

They said they would come the next day.他们说他们第二天来。(帮助构成过去将来时)

Would you mind my turning down the radio?你介意我关小收音机吗?(用于礼貌地提出建议)

You should lie down and rest. 你应该躺下休息。(用于提供建议)

5、情态动词can, may, must, might, could等

情态动词具有一定的词义,用以表达说话人的态度或情感,必须和后面的实义动词一起构成合成谓语。

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