英语高中英语英语句子成分的分析与理解课件牛津版必修1

《英语高中英语英语句子成分的分析与理解课件牛津版必修1》由会员分享，可在线阅读，更多相关《英语高中英语英语句子成分的分析与理解课件牛津版必修1（62页珍藏版）》请在装配图网上搜索。

1、句子成分v主主 谓谓 宾宾 主语主语谓语谓语宾语宾语v定语定语 v状语状语 v补语补语v同位语同位语主语主语 谓语谓语 宾语宾语v观察下面一个例句，你能找到句中的观察下面一个例句，你能找到句中的“主语主语”、“谓语谓语”、“宾语宾语”吗吗?v因此这是个典型的因此这是个典型的“主谓宾主谓宾”句型。句型。Ibeatyou.主语主语 谓语谓语宾语宾语SVO思考一下：什么是主语什么是主语(Subject)呢呢?v主语是动作的主体部分主语是动作的主体部分在主动句中：主语是动作的发出者在主动句中：主语是动作的发出者vI teach you English.在被动句中：主语是动作的承受者在被动句中：主语是动

2、作的承受者vYou are beaten.v主语一般由名词、代词或数词充当。主语一般由名词、代词或数词充当。We are good friends.主语还可以由从句或非谓语动词充当。主语还可以由从句或非谓语动词充当。What I want to do is join the party.Smoking is harmful to your health.To learn English is difficult.（代词）（代词）我们再想一想什么是谓语(Predicate)v谓语谓语 表示一个动作、行为，是由表示一个动作、行为，是由动词动词充充当的。当的。I teach you English.

3、v一个句子能不能没有谓语？一个句子能不能没有谓语？谓语谓语不能不能宾语(Object)又是什么？v宾语的分类：动词宾语：动作涉及的对象。vI love you.介词宾语：介词所涉及的对象。vI want to give this book to you.v宾语一般由名词、代词充当。v宾语也可以是一个从句或非谓语动词。He told me that he felt lonely.He likes swimming.v(三)挑出下列句中的宾语（10分，10分钟）v My brother hasnt done his homework.v People all over the world spea

4、k English.v You must pay good attention to your pronunciation.v How many new words did you learn last class?v Some of the students in the school want to go swimming,how about you?v The old man sitting at the gate said he was ill.v They made him monitor of the class.v Go across the bridge and you wil

5、l find the museum on the left.v You will find it useful after you leave school.v They didnt know who Father Christmas really is.定语(Attributive):v定语的作用？用于修饰、限定名词或代词。v定语一般由？充当。girlv定语还可以由名词充当，表用途。a pencil box形容词形容词 beautifula定语(Attributive):v定语也可以由从句或非谓语动词充当。Those who want to learn English well should

6、 study harder than others.an interesting booka meeting to attendv定语也可以由副词（词组）或介词（词组）充当。The man over thereThe books on the shelfv介词短语介词短语作定语：作定语：vThe boy in the classroom needs a pen of yours./教室里的男孩需要你的一支钢笔。vThe boy in blue is Tom./穿兰色衣服的孩子是汤姆。vThere are two boys of 9,and three of 10./有两个9岁的，三个10岁的男

7、孩。v名词名词作定语：作定语：vThe boy needs a ball pen./男孩需要一支圆珠笔。vThere is only one ball pen in the pencil box./这铅笔盒里只有一支圆珠笔。v副词副词作定语：作定语：vThe boy there needs a pen./那儿的男孩需要一支钢笔。vThe best boy here is Tom./这里最棒的男孩是Tom。v不定式不定式作定语：作定语：vThe boy to write this letter needs a pen./写这封信的男孩需要一支钢笔。vThere is nothing to do

8、today./今天无事要做。v分词（短语）分词（短语）作定语：作定语：vThe smiling boy needs a pen bought by his mother./那个微笑的男孩需要一支他妈妈买的钢笔。vThe pen bought by her is made in China./她买的笔是中国产的。vThere are five boys left./有五个留下的男孩。v定语定语从句：从句：vThe boy who is reading needs the pen which you bought yesterday./那个在阅读的男孩需要你昨天买的钢笔。vThe boy you

9、will know is Tom./你将认识的男孩叫汤姆。vThere are five boys who will play the game./参加游戏的男孩有五个。v(五)挑出下列句中的定语（6分，6分钟）v They use Mr,Mrs with the family name.v What is your given name?v On the third lap are Class 1 and Class 3.v I am afraid some people forgot to sweep the floor.v The man downstairs was trying to

10、 sleep.v I am waiting for the sound of the other shoe!（八）状语（八）状语 v修饰动词、形容词、副词或整个句子修饰动词、形容词、副词或整个句子，说明说明动作或状态特征动作或状态特征的句子成分，叫做状语的句子成分，叫做状语（Adverbial）。可由以下形式表示）。可由以下形式表示：1.Light travels most quickly.2.He has lived in the city for ten years.3.He is proud to have passed the national college entrance exa

11、mination.（副词及副词性词组）（介词短语）（不定式短语）4.He is in the room making a model plane.5.Wait a minute.6.Once you begin,you must continue.（分词短语）（名词）（状语从句）1.介词短语作状语：In the classroom,the boy needs a pen./在教室里，男孩需要一支钢笔。（地点状语）vBefore his mother,Tom is always a boy./在母亲面前,汤姆总是一个男孩子.(条件状语)vOn Sundays,there is no studen

12、t in the classroom./星期天,教室里没有学生.(时间状语)2.分词（短语）分词（短语）作状语作状语：vHe sits there,asking for a pen./他坐在那儿要一支笔。（表示伴随状态）vHaving to finish his homework,the boy needs a pen./因为不得不完成作业，男孩需要一支笔。（原因状语）vFrightened,he sits there soundlessly./（因为）受了惊吓，他无声地坐在那儿。（原因状语）3.不定式不定式作状语：作状语：vThe boy needs a pen to do his home

13、work./男孩需要一支笔写家庭作业。（目的状语）vTo make his dream come true,Tom becomes very interested in business./为实现梦想,汤姆变得对商业很有兴趣.4.名词作状语：vCome this way!/走这条路！（方向状语）9 9种状语种类：种状语种类：1.How about meeting again at six?2.Last night she didnt go to the dance party because of the rain.3.I shall go there if it doesnt rain.4.

14、Mr Smith lives on the third floor.5.She put the eggs into the basket with great care.（时间状语）（原因状语）（条件状语）（地点状语）（方式状语）6.She came in with a dictionary in her hand.7.In order to catch up with the others,I must work harder.8.He was so tired that he fell asleep immediately.9.She works very hard though she

15、is old.10.I am taller than he is.（伴随状语）（目的状语）（结果状语）（让步状语）（比较状语）v(七)挑出下列句中的状语（8分，8分钟）v There was a big smile on her face.v Every night he heard the noise upstairs.v He began to learn English when he was eleven.v The man on the motorbike was travelling too fast.v With the medicine box under her arm,Mi

16、ss Li hurried off.v She loves the library because she loves books.v I am afraid that if youve lost it,you must pay for it.v The students followed Uncle Wang to see the other machine.补语(Complement)vHe made his sister cry.vHis sister was made to cry.v补语是用于补充说明主语或宾语的身份或特征。v补语一般由名词或形容词充当。Dont leave me a

17、lone.(O C)主语补语主语补语宾语补足语宾语补足语补语(Complement)v随着语态的变化，主语补语和宾语补语是发生变化的。Everyone calls him Jack.（宾补）He is called Jack.（主补）v(六)挑出下列句中的宾语补足语（6分，6分钟）v She likes the children to read newspapers and books in the reading-room.v He asked her to take the boy out of school.v She found it difficult to do the work.

18、v They call me Lily sometimes.v I saw Mr Wang get on the bus.v Did you see Li Ming playing football on the playground just now?（四）表语（四）表语 v表语表语(Predicative)用以说明主语的用以说明主语的性质、特性质、特征、状态与身份，它一般位于系动词（如征、状态与身份，它一般位于系动词（如be,become,get,look,grow,turn,seem等）等）之后。之后。表语一般由表语一般由名词、代词、形容词、数名词、代词、形容词、数词、词、副词、不定式、

19、动名词、分词、介词短副词、不定式、动名词、分词、介词短语及表语从句语及表语从句表示。例如：表示。例如：1.Our teacher of English is an American.（名词）（名词）2.Is it yours?（代词）（代词）3.The weather has turned cold.（形容词）（形容词）4.The speech is exciting.（分词）（分词）5.Three times seven is twenty one?（数词）（数词）6.His job is to teach English.（不定式）（不定式）7.His hobby is playing f

20、ootball.（动名词）（动名词）8.The meeting is of great importance.（介词短语）（介词短语）9.Time is up.The class is over.（副词）（副词）10.The truth is that he has never been abroad.（表语从句）（表语从句）v(四)挑出下列句中的表语（5分，5分钟）v The old man was feeling very tired.v Why is he worried about Jim?v The leaves have turned yellow.v Soon They all

21、became interested in the subject.v She was the first to learn about it.同位语(Appositive)v同位语是位于名词或代词后面，重复指代同一事物。v同位语一般由名词或名词词组充当The Great Wall,one of the wonders in the world,attracts a large number of foreign friends.v名词性从句也可以充当同位语（修饰抽象名词为多）The news that he went abroad surprised me.句子成分句子成分意义意义充当词类充当

22、词类例句例句主语主语表示句子说的是什么人或什么表示句子说的是什么人或什么事事名，代，数，不定名，代，数，不定式，动名词，短语或式，动名词，短语或句子句子We study in HuangQiao Middle School.谓语谓语说明主语做什么，是什么或怎说明主语做什么，是什么或怎么样么样动词或动词词组动词或动词词组She is dancing under the tree.宾语宾语表示动作行为的对象表示动作行为的对象同主语同主语Both of us like English.表语表语与联系动词连用，一起构成谓与联系动词连用，一起构成谓语，说明主语的性质或特征语，说明主语的性质或特征同主语同

23、主语Her father is a chemist.His words sound reasonable.定语定语用来修饰名词或代词用来修饰名词或代词形，代，数，名形，代，数，名,副，介副，介词短短语或句子或句子We have eight lessons every day.状语状语修饰动词，形容词，副词，表修饰动词，形容词，副词，表示动作发生的时间，地点，原示动作发生的时间，地点，原因，目的，方式，结果等因，目的，方式，结果等副词，介词短语或句副词，介词短语或句子子He works very hard.They held a party in Hollywood.宾语宾语补足语补足语逻辑上与

24、宾语是主谓关系逻辑上与宾语是主谓关系形容词，名词，介词形容词，名词，介词短语等短语等She always keeps the house clean.主语谓语是基础，宾表定状补辅助。宾主来自名代数，动词作谓不可无！主语谓语是基础，宾表定状补辅助。宾主来自名代数，动词作谓不可无！Last week I went to the supermarket.Last week I went to the supermarket.状状 主主 谓谓 宾宾The play was very interesting.The play was very interesting.主主 系状表系状表I cant he

25、ar a word.I cant hear a word.主谓主谓 宾宾They were talking loudly.They were talking loudly.主主 谓谓 状状It was Sunday.It was Sunday.主主 系系 表表I never get up early on Sundays.I never get up early on Sundays.主状谓状状主状谓状状I looked at the young man and the young woman angrily.I looked at the young man and the 主谓主谓 宾宾y

26、oung woman angrily.宾宾 状状I read a few lines,but I didnt understand a word.I read a few lines,but I didnt 主主 谓谓 定定 宾宾 连连 主谓主谓understand a word.谓谓 宾宾My holidays passed quickly,but I didnt send cards to my friends.My holidays passed quickly,but I 主谓状主谓状 连主连主didnt send cards to my friends.谓谓 宾宾 补补I got u

27、p early and bought thirty cards.I got up early and bought thirty cards.主谓主谓 状状 连连 谓谓 定定 宾宾He is working for a big firm and he has already visited a great number of different places in Australia.He is working for a big firm and he has 主主 谓谓 状状 连主谓连主谓already visited a great number of different 状谓状谓 定定

28、 定定places in Australia.宾状宾状什么叫句子成分呢？句子的组成成分叫句子成分。在句子中，词与词之间有一定的组合关系，按照不同的关系，可以把句子分为不同的组成成分。句子成分由词或词组充当。现代汉语里一般的句子成分有六种，即主语、谓语、宾语、定语、状语和补语。英语的基本成分有七种：主语（subject）、谓语（predicate）、表语（predicative）、宾语（object）、定语（attribute）、状语(adverbial)和补语（complement）。英语句子的基本结构可以归纳成五种基本句型及其扩大、组合、省略或倒装。掌握这五种基本句型，是掌握各种英语句子结构

29、的基础。英语五种五种基本句型列式如下：一：（主谓）二：（主系表）三：（主谓宾）四：（主谓间宾直宾）五：（主谓宾宾补）基本句型基本句型 一：一：（主谓）（主谓）主语主语：可以作主语的成分有名词名词（如boy），主格代词主格代词（如you），动词不定式动词不定式，动名词动名词等。主语一般在句首句首。注意名词单数形式常和冠词不分家！谓语谓语：谓语由动词构成，是英语时态、语态变化的主角，一般在主语之后。不及物动词不及物动词（vi.）没有宾语，形成主谓结构，如：We come.此句型的句子有一个共同特点，即句子的谓语动词都能表达完整的意思。这类动词叫做不及物不及物动词动词，后面可以跟副词、介词短语、状语

30、从句副词、介词短语、状语从句等。（不及物动词）（不及物动词）1.The sun was shining.太阳在照耀着。2.The moon rose.月亮升起了。3.The universe remains.宇宙长存。4.We all breathe,eat,and drink.我们大家都呼吸、吃和喝。5.Who cares?管它呢？6.What he said does not matter.他所讲的没有什么关系。7.They talked for half an hour.他们谈了半个小时。8.The pen writes smoothly 这支笔书写流利。基本句型基本句型 二：二：（主系

31、表）（主系表）此句型的句子有一个共同的特点：句子谓语动词都不能表达一个完整的意思，必须加上一个表明主语身份或状态的表语构成复合谓语，才能表达完整的意思。这类动词叫做连系动词。系动词分两类：be,look,keep,seem等属一类，表示情况情况；get,grow,become,turn等属另一类，表示变化变化。be 本身没有什么意义,只起连系主语和表语的作用。其它系动词仍保持其部分词义。感官动词多可用作联系动词：look well/面色好,sound nice/听起来不错,feel good/感觉好，smell bad/难闻（是系动词）（是系动词）1.This is an English-Ch

32、inese dictionary.这是本英汉辞典。2.The dinner smells good.午餐的气味很好。3.He fell in love.他堕入了情网。4.Everything looks different.一切看来都不同了。5.He is growing tall and strong.他长得又高又壮6.The troubleis that they are short of money.麻烦的是他们缺少钱。7.Our well has gone dry.我们井干枯了。8.His face turned red.他的脸红了。试比较：There is a boy there.（

33、那儿有一个男孩。）/前一个there无实意，后一个there为副词那里。基本句型基本句型 三：三：（主谓宾）（主谓宾）此句型句子的共同特点是：谓语动词都具有实义，都是主语产生的动作，但不能表达完整的意思，必须跟有一个宾语，即动作的承受者，才能使意思完整。这类动词叫做及物动词。宾语位于及物动词之后，一般同主语构成一样，不同的是构成宾语的代词必须是代词宾格，如：me，him，them等 误 v（及物动词）（及物动词）v1.Who knows the answer?谁知道答案？谁知道答案？v2.She smiled her thanks.她微笑表示感谢。她微笑表示感谢。v3.He has refus

34、ed to help them.他拒绝帮他们。他拒绝帮他们。v4.He enjoys reading.他喜欢看书。他喜欢看书。v5.They ate what was left over.他们吃了剩饭。他们吃了剩饭。v6.He said Good morning.他说：他说：早上好！早上好！v7.I want to have a cup of tea.我想喝杯茶。我想喝杯茶。v8.He admits that he was mistaken.他承认犯他承认犯了错误。了错误。基本句型 四：（主谓间宾直宾）有些及物动词可以有两个宾语，如：give给，pass递，bring带，show显示。这两个宾

35、语通常一个指人，为间接宾语；一个指物，为直接宾语。间接宾语一般位于直接宾语之前。一般的顺序为：动词+间接宾语+直接宾语。如：Give me a cup of tea,please.（及物）（及物）（多指人）（多指人）（多指物）（多指物）1.She ordered herself a new dress.她给自己定了一套新衣裳。2.She cooked her husband a delicious meal.她给丈夫煮了一顿美餐。3.He brought you a dictionary.他给你带来了一本字典。4.He denies her nothing.他对她什么都不拒绝。5.I show

36、ed him my pictures.我给他看我的照片6.I gave my car a wash.我洗了我的汽车。7.I told him that the bus was late.我告诉他汽车晚点了。8.He showed me how to run the machine.他教我开机器。基本句型基本句型 五：五：（主谓宾（主谓宾宾补）宾补）此句型的句子的共同特点是：动词虽然是及物动词，但是只跟一个宾语还不能表达完整的意思，必须加上一个补充成分来补足宾语，才能使意思完整。宾语补足语：位于宾语之后对宾语作出说明的成分。宾语与其补足语有逻辑上的主谓关系，它们一起构成复合宾语。v名词/代词宾格

37、+名词vThe war made him a soldier./战争使他成为一名战士.v名词/代词宾格+形容词vNew methods make the job easy./新方法使这项工作变得轻松.v名词/代词宾格+介词短语vI often find him at work./我经常发现他在工作.v名词/代词宾格+动词不定式vThe teacher ask the students to close the windows./老师让学生们关上窗户.v名词/代词宾格+分词vI saw a cat running across the road./我看见一只猫跑过了马路.（及物）（及物）（宾语）

38、（宾语）（宾补）（宾补）1.They appointed him manager.他们任命他当经理。2.They painted the door green.他们把门漆成绿色3.This set them thinking.这使得他们要细想一想。4.They found the house deserted.他们发现那房子无人居住。5.What makes him think so?他怎么会这样想？6.We saw him out.我们送他出去7.He asked me to come back soon.他要我早点回来。8.I saw them getting on the bus.我看见

39、他们上了那辆公共汽车。v句子成分练习题句子成分练习题(一一)v(一).指出下列句中主语的中心词（4分，4分钟）v The teacher with two of his students is walking into the classroom.v There is an old man coming here.v The useful dictionary was given by my mother last year.v To do todays homework without the teachers help is very difficult.v(二)选出句中谓语的中心词（10

40、分，10分钟）v I dont like the picture on the wall.vA.dont B.like C.picture D.wallv The days get longer and longer when summer comes.vA.get B.longer C.days D.summerv Do you usually go to school by bus?vA.Do B.usually D.busv There will be a meeting at the library this afternoon.vA.will be B.meeting C.the l

41、ibrary D.afternoonv Did the twins have porridge for their breakfast?v B.twins C.have D.breakfastv Tom didnt do his homework yesterday.vA.Tom B.didnt C.do D.his homeworkv What I want to tell you is this.vA.want B.to tell C.you D.isv We had better send for a doctor.vA.We B.had C.send D.doctorv He is i

42、nterested in music.vA.is B.interested C.in D.musicv Whom did you give my book to?vA.give C.whom D.bookv(七)挑出下列句中的状语（8分，8分钟）v There was a big smile on her face.v Every night he heard the noise upstairs.v He began to learn English when he was eleven.v The man on the motorbike was travelling too fast.v

43、 With the medicine box under her arm,Miss Li hurried off.v She loves the library because she loves books.v I am afraid that if youve lost it,you must pay for it.v The students followed Uncle Wang to see the other machine.v(八)划出句中的直接宾语和间接宾语（5分，5分钟）v Please tell us a story.v My father bought a new bik

44、e for me last week.v Mr Li is going to teach us history next term.v Here is a it to Tom.v Did he leave any message for me?v句子成分练习题句子成分练习题(二二)v指出下列句子中划线部分的句子成分：v1.Whether well go depend on the weather.v2.Peoples standards of living are going up steadily.v3.That was how they were defeated.v4.The nurse

45、ry takes good care of our children.v5.Ill return the book to you tomorrow.v6.We are sure that we shall succeed.v7.The woman with a baby in her arms is his other.8.There are many film that Id like to see.v9.Have you met the person about whom he was speaking?v10.I have a lot of work to do.v11.Anyway I

46、 wont stop you from doing it.v12.I said it in fun.v13.We can send a car over to fetch you.v14.She had to work standing up.v15.Seeing this,some comrades became very worried.v16.Much interested,he agreed to give it a try.v17.The bus arrived ten minutes late.v18.We should serve the people heart and sou

47、l.v19.Spring coming on,the tree turned green.v20.Some farmers saw something strange in the sky.v21.We think it necessary that everyone should attend the meeting.v22.Its strange that she doesnt come today.v23.It was in the library that I come today.v24.He likes drawing at times when he isnt working.v

48、25.We left in such a hurry that we forgot to lock the door.v句子成分练习题句子成分练习题(三三)vAv1、_ six years since I began to study English.A.It is B.I have been C.There are D.It was v2、_ in the room at that time.A.Nobody was B.Someone were C.Who is D.He are v3、ITS very noisy outside._ is going on?A.Who B.What C.

49、Which D.Where v4、_ in English in class every day is important.A.Speak B.Talking C.Saying D.To tellv5、There must be_ near the factory.A.a book store B.book store C.books store D.books storesv6、Although its raining hard,_ are still working in the fields.A.but they B.and they C.they D.since theyvBv1、Th

50、e doctor as well as the nurses _ great concern for the patients.A.show B.shows C.have shown D.are showing v2、Your son must be a clever boy,_ he?A.is B.isnt C.must D.mustnt v 3、The computer center,_ last year,is very popular among students in this school.A.open B.opening C.opened D.being opened v 4、I

51、 _ go to the shop today,for there is a lot of food at home.A.mustnt B.had to C.cant D.neednt v 5、Dont _ excited.A.get B.is C.seem D.look v6 This room _ every morning.A.is cleaning B.is cleaned C.cleans D.cleaning vCv1、Glad to meet you!_ is your full name?A.What B.Where C.How D.Who v2、He is _ to lift

52、 the heavy box.A.too weak B.weak tooC.enough weak D.weak enoughv3、The days are _ warmer and warmer in spring.A.getting B.looking C.seeming D.going v 4、His job is_English.A.teach B.to teach C.taught D.teachesv 5、Two balls are_.A.under the desk B.in the wall C.to here D.at desksvDv1、We should get read

53、y_ others.A.helping B.to help C.help D.help with v 2、_interesting work we are doing?A.What a B.How C.What D.What an v 3、I want_ a teacher when I grow up.A.to be B.to C.be D.being v 4、-Would you like to go on a picnic with me today?-I dont think so.To be honest,I really dont feel like_on apicnic.A.go

54、ing B.to go C.go D.went v 5 Do you know_?A.where does he live B.where he livesC.where he live D.if where he lives v6 Let _ do it again.A.I B.me C.he D.she v 7 I dont know_.A.how to do B.what to do C.where to do D.when to do vEv 1、I saw him _ basketball with Jack an hour ago.A.plays B.to play C.playe

55、d D.play v2、Sorry,weve kept you_ for a long time.A.waited B.sing C.stand D.waiting v3、The teacher told us _ late again.A.arent be B.dont be C.not to be D.not be v 4、We find the room very_.A.warm B.warmly C.terribly D.hardlyvFv1、I found _ difficult to work together with him.A.it B.its C.that D.those

56、v 2、We all know _ our duty to clean our classroom after school every day.A.that B.this C.which D.it v 3、He found _ very interesting to play with the little dog.A.what B.it C./D.thatGv()1 Tom said he _ a good dream yesterday evening.A.dream B.dreamed C.have D.has v()2 Children _ a happy life in China

57、.A.lead B.living C.has D.leadingvHv()1 America,Japan and Canada are_countries.A.developing B.developed C.less developed D.develop v()2-_ skirt is that on the chair?-Let me see.Oh,no,its not mine.A.Whose B.What C.Whos D.Which v()3 Do you have anything _?A.saying B.to say C.said D.say v()4 Look,there

58、is an_tree by the wall.A.apple B.apples C.apples D.apples v()5 Where is_seat?A.yours B.your C.you D.yourselvesvIv()1 The box is _ heavy for her _ carry.A.very;to B.too;not toC.too;to D.very too;to v 2-_ did you buy the new bag?-Last Monday.A.Where B.How C.When D.Whov 3 You can see these signs in a h

59、ospital._ can you see them?A.Where else B.Where place elseC.Where else place D.Else where v 4 They went out _ their old friends.A.visit B.visiting C.to visit D.visited v 5 There is a wide river_ our village.A.outside B.over C.from D.belowvJv 1 The young man,_ works in the office.A.me brother B.my brother C.my brothers D.me v2 Our English teacher,_ often helps us with study.A.Mrs Wang B.Mrs5 WangC.MrsWangs.D.of him v 3 _,some railway workers are busy repairing the train.A.Them B.He C.They D.Theirs