初中三大从句练习

从句在英语中，主要有三大从句，即名词性从句（包括主语从句，宾语从句，表语从句，同位语从句）、形容词性从句（即定语从句）、副词性从句（即状语从句,包括时间、条件、结果、目的、原因、让步、地点、方式等）。

定语从句一、关系代词引导的定语从句关系代词代替前面的先行词，并且在定语从句中充当句子成分，可以作主语、宾语、定语等。

常见的关系代词有：who, that, which。

它们的主格、宾格和所有格如下表所示：先行词主格宾格所有格人who whom whose物which which人、物that that —（一）关系代词who, whom和whose的用法who代替人，是主格，在定语从句中作主语。

An architect is a person who designs buildings. 建筑师是设计房屋的人。

whom代替人，是宾格，在定语从句作宾语，在非正式英语常可省略。

Do you know the gentleman whom we met in the school library yesterday? 昨天我们在学校图书馆里遇到的那位先生你认识吗？whose一般代替人，有时亦可代替物，是所有格，在定语从句作定语。

The girl student whose father is a senior engineer used to study abroad. 其父是一位高级工程师的那个女学生过去在国外留学。

Do you know the name of the hotel whose window we can see here? 我们这儿能看到窗户的那个宾馆叫什么名字，你知道吗？（关系代词whose指代先行词hotel，正式用法应该用of which。

whose window=the window of which，意思是：the window of the hotel。

）（二）关系代词which的用法which代替物，在定语从句作主语或宾语，作宾语时还可省略。

初中英语从句练习1. 宾语从句- 我喜欢那些听起来很放松的音乐。

- 我不确定他是否明天会来参加聚会。

- 老师告诉我们，地球是绕着太阳转的。

2. 状语从句- 尽管天气很冷，我们还是决定去爬山。

- 如果你努力学习，你就能通过这次考试。

- 因为下雨，我们取消了野餐计划。

3. 定语从句- 我正在读的那本书非常有趣。

- 那个正在图书馆学习的女孩是我的同学。

- 我找到了我丢失的钥匙。

4. 主语从句- 谁将赢得比赛还不清楚。

- 他所说的让我很惊讶。

- 我们明天去看电影是一个很好的主意。

5. 表语从句- 事实是，我们没有足够的时间完成这个项目。

- 重要的是，我们要按时完成作业。

- 他的问题是我们是否有足够的资金。

6. 同位语从句- 他有一个梦想，那就是成为一名医生。

- 我们有一个消息，那就是我们赢得了比赛。

- 她有一个疑问，那就是我们是否应该接受这份工作。

7. 虚拟语气- 如果我有足够的钱，我会环游世界。

- 我希望我昨天没有错过那场音乐会。

- 要是我早知道这个消息就好了。

8. 强调句- 正是这本书给了我灵感。

- 正是在图书馆，我找到了我需要的所有资料。

- 正是通过努力学习，他才取得了好成绩。

9. 并列句- 我不仅完成了作业，还帮助了朋友。

- 他喜欢音乐，也喜欢运动。

- 我们去看电影，然后去吃了晚餐。

10. 省略句- 虽然他很累，（他还是）继续工作。

- （如果）你不介意，我可以帮你完成这项任务。

- （因为）我迟到了，所以我错过了公交车。

初中数学三大从句专项训练什么是从句从句是由一个独立的句子构成的句子部分，它不能独立存在，必须依附在主句或其他从句中。

从句在句子中充当名词、形容词或副词的作用。

三大从句的类型在初中数学中，有三种常见的从句类型，包括名词从句、形容词从句和副词从句。

名词从句名词从句起名词的作用，在句子中充当主语、宾语、表语或同位语。

例子：- 主语从句：谁会来参加聚会是我的疑问。

谁会来参加聚会是我的疑问。

- 宾语从句：我不知道她什么时候会到达。

她什么时候会到达。

- 表语从句：我们的目标是如何提高研究成绩。

如何提高学习成绩。

- 同位语从句：我们都相信他能够成功。

他能够成功。

形容词从句形容词从句用来修饰名词或代词，充当形容词的作用。

例子：- 我喜欢在安静的地方读书。

安静的地方读书。

- 这是我一直梦想过的美丽的城市。

美丽的城市。

副词从句副词从句用来修饰动词、形容词或副词，充当副词的作用。

例子：- 她回家时，下雨了。

下雨了。

- 我们应该努力研究，以便取得好成绩。

以便取得好成绩。

从句的练为了更好地理解和运用从句，以下是一些练题供同学们练。

1. 请写出下列句子中的从句类型：- 我不知道他是否会来参加聚会。

我不知道他是否会来参加聚会。

- 我很好奇他是什么时候回来的。

我很好奇他是什么时候回来的。

- 这是我们已经讨论过的问题。

这是我们已经讨论过的问题。

- 老师告诉我们他为什么迟到了。

老师告诉我们他为什么迟到了。

2. 请根据提示完成下列句子中的从句：- 我喜欢在晴天的时候跑步。

（形容词从句）晴天的时候跑步。

（形容词从句）- 请你告诉我你什么时候回来。

（宾语从句）你什么时候回来。

（宾语从句）- 他回答的不肯定，你是否能相信？（名词从句）你是否能相信？（名词从句）通过对这些练习的完成，同学们可以更好地掌握初中数学中的三大从句类型，并能够在日常学习和写作中更加灵活地运用它们。

宾语从句、状语从句、定语从句综合练习1.I don’t know ___________or not.A. whether he is at homeB. if he is at homeC. that he is at homeD. whether is he at home2.The man and the horse _____ fell into the river were drowned(淹死).A. whichB. whoC. thatD. of which3.I really don’t know __________.A. what to doB. how to doC. what to do itD. to do what4.We couldn’t find out _____, so we handed it in to the teacher.A. whose pen was itB. whose pen it wasC. it was whose penD. whosepen is it5.I don’t know ____ he still lives here.A. whereB. whatC. whenD. whether6.The teacher asked the new student ____ class he was in.A. whichB. whereC. ifD. that7.I don’t know ____ Mr. Green will come to see us. He’ll help us with our English.A. whyB. whenC. howD. where8.--- Be careful! Don’t break the bottles. Do you hear ____ I said? David?--- Yes, MumA. whatB. thatC. whyD. if9 .Could you ring me up as soon as he _____?A. arrivedB. would arriveC. arrivesD. will arrive10. The doctor _____ is leaving for London next month.A. the nurse is talking to himB. whom the nurse is talking toC. the nurse is talking toD. who the nurse is talking11.Jim has been in the factory for two months _____ he left school.A. whenB. sinceC. as soon asD. whether12. --- Do you know _____ Mr Black’s address is?--- He may live at NO.18 or No. 19 of Bridge Street. I’m not sure of ____he lives.A.where, whichB. where, whatC. what, whichD. what, where13.There is not much difference between the two. I really don’t know _____.A. what should I chooseB. which I should chooseC. which should I chooseD. what I should choose14.Her young sister _____ is eighteen years old is a college student.A. whichB. whoC. whomD. when15. --- Do you know Betty very well?--- Yes, she and I ____ friends since we met In Guangzhou last summer.A. have madeB. have becomeC. have beenD. have turned16 . Do you know the boy _____ English is the best in Junior 1?A. whoseB. who’sC. that hisD. which17. Who can tell us ____ over there?A. what do they talkB. what are they talking aboutC. what they talkD. what they are talking about18. He has ____many story books that he can found a small library.A.tooB.soC.suchD.very19. Have you heard of the new airport _____ will be opened this year?A. whoB. whenC. whichD. whom20 .--- Where does he come from?--- Pardon?--- I asked where ______.A.. did he come fromB. he came fromC. he comes fromD. does he come from21. Did you find out ______?A. she was looking for whose childB. whose child was she looking forC. whose child she is looking forD. whose child she was looking for22. A nurse is a person ____ job is to take care of the patient in the hospital.A. whoB. whoseC. thatD. which23.Are you interested in _____?A. how did he do itB. he did it howC. how he did itD. he how did it24. She is ____ a good girl that everyone likes her.A. soB. howC. suchD. much25.--- Who is the man ____ was walking to our English teacher?--- Oh! It’s Mr. Baker, our new maths teacher.A. heB. thatC. whomD. which26. They ______about a new film when their teacher ____ in.A. have talked, cameB. didn’t talk, was comingC. will talk, comesD. were talking, came27. He went to bed after he _____his homework.A. finishB. finishesC. had finishedD. was finishing28. He has forgotten the day _______ he arrived here.A. whenB. whereC. thatD. which29. --- What did the scientist say?--- He said he wondered if _____ into space by spaceship one day.A. he had to flyB. he could flyC. can he flyD. could he fly30. He will start working as soon as _____ here.A. arrivingB. he arrivesC. he will arriveD. he has arrives31. He got to the village _______ his family once lived before liberation.A. thatB. whichC. whenD. where32. Excuse me, sir. Could you tell me ____?A. Where the bank nearestB. where is the nearest bankC. where the nearest bank isD. the nearest bank is where33. That’s all _____ I know. I can’t tell you any more.A. whichB. thatC. whoD. whose34. It’s 7:30. I can’t believe you___ cooking dinner yet, Sally.A. haven’t startedB. didn’tC. don’t startD. hadn’t started35.We ____Xiao Li since she was a little child.A. knowB. had knownC. have knownD. knew36. ______me up when you ______ any help.A. Ring, needB. rang , needC. To ring, needD. Ringing, need37. The teacher told us yesterday that December 25 ____ Christmas Day.A. isB. wasC. has beenD. will be38. He was ____ fat that he could not get through the door.A. soB. howC. suchD. much39. Peter will go to visit his uncle before he ______ Australia.A. has leftB. will leaveC. is leavingD. leaves40. Do you know _________? They moved here soon after their son was born.A. when would the Greens move hereB. when the Greens moved hereC. the Greens would move hereD. when the Greens would move here41.--- Have you finished your project yet?--- Not yet. The teacher said it ______ tomorrow.A. could be handed inB. can be handed inC. can hand inD. couldhand in42. The teacher said that the earth _______round the sun.A. goesB. goC. wentD. will go43. ---- What do you like doing after class?---- I like not only reading _____ painting.A. andB. but alsoC. orD. for44. I won’t let you in ____ you show me your card.A. exceptB. unlessC. butD. if45. We ’d like to tell you that you ______the exam.A. have passedB. had passedC. passD. will pass46. “Could you tell me______?” “ Yes. They ____ to the library.”A. where are the twins, have beenB. where were the twins, have beenC. where the twins are, have gone D, where the twins were, have gone47.---Mother came in while we ___ TV at midnight.---Was she angry with you?A. were watchingB. are watchingC. watchedD. watch48. While she ____ NBA Games in the sitting room, the bell _____.A.watched, was ringingB. is watching, rangC. was watching, rangD. was watching, was ringing49. Our father said that he ______ a new computer next week.A. will buyB. have boughtC. would buyD. buys50. You’ll do better in English ____ you work harder.A. orB. thanC. ifD. before51. If the bus ____ in ten minutes’ time, we _____ late for our meeting.A. didn’t come, wereB. doesn’t come, will beC. came, won’tD. hadn’tcome, will be52. May I sit nearer ___I can see more clearly?A. in order thatB. unlessC. even ifD. until53. If you ___ carefully, you ___ the report well.A. will listen; will be understandB. will listen; understandC. listen; will understandD. listen; understand54. By the time they _____ the lost girl, she ______ away for half a month.A. had found, wasB. found, had beenC. has found, isD. had found,had been55. Mike is learning _____ a computer.A. how can he useB. how to useC. how he useD. how to using56. ---Rick! Your jacket is wet through.. Didn’t you listen to the weather report this morning?---No, I didn’t. I was in a hurry. Besides, it ____ when I left.A. hadn’t rainedB. would rainC. rainedD. wasn’t raining57.I hurried _____ I would not be late for the meeting.A. sinceB. as ifC. unlessD. so that58. --- Hi, Tom! Can you tell me when ____ for London?--- Yes, tomorrow afternoon.A. leavingB. leavesC. to leaveD. are leaving59.--- It’s time to do your homework, Jack--- Yes, Mum. I’ll turn off the TV as soon as the programme_______.A. endsB. endC. will be endedD. will end60.--- Did you tell your brother where Susan _____?--- Yes, but I didn’t tell him she ____ until next week.A. has gone, won’t come homeB. went, don’t come homeC. had been, wouldn’t come homeD. had gone , wouldn’t come home61. The old people ____ lonely at all since we began to visit them once a week.A. don’t feelB. hasn’t feltC. haven’t feltD. didn’t feel62. She said she ____ for the test. You can test her even now.A. has preparedB. had preparedC. will prepareD. would prepare63.--- How did the accident happen?--- You know, it ____ difficult to see the road clearly because it ______.A. was; was rainingB. is; has rainedC. is; is rainingD. will be; will rain64. The poor man ate a big breakfast _____ he said he wasn’t hungry.A. sinceB. becauseC. thoughD. for65. Though it rained heavily, ___ were still playing on the playground.A. theyB. so theyC. but theyD. and they66. Do you remember ____ last time?A. what is your teacher sayingB. what your teacher saidC. what your teacher saysD. what did your teacher say67. Catherine ____ the letter before her mother came into her bedroom.A. has writtenB. was writtenC. had writtenD. is writing68. Ask Tony _____ go with us tomorrow.A. if he willB. if heC. will heD. whether will he69.He didn’t know ______he should go or not.A. ifB. weatherC. thatD. whether70. Mary didn’t go to see a film ____ her father came back home.A. untilB. butC. ifD. when71.Mary will go ____ after she _____ her homework.A. shops; finishB. shopping; finishesC. to shop; finishingD. shopping; finish72.The class____ when Tom ____ into the classroom.A. began; was walkingB. had begun; walkedC. begins; walksD. was beginning; walked73.________ well you drive, you must drive carefully.A．No matter where B．In order that C．No matter how D．As soon as答案：1-5 ACABD6-10 ABACB11-15 BDBBC16-20 ADBCB21-25 DBCCB26-30 DCABB31-35 DCBAC36-40 AAADB41-45 AABBA46-50 CACCC51-55 BACBB56-60 DDCAD61-65 CBACA66-70 BCADA71-73 BBC。

完整)初中三大从句练习1.Do you know what Tom will do during the coming summer holiday?2.I want to know what his name is.3.Do you know whether I could pass the exam?4.XXX't understand what the way to the museum is.5.Could you tell me whom she is looking for?6.Mr。

King didn't know when his XXX.7.Could you tell me how he mended the bike this morning?8."I'm waiting for the mail。

Do you know when it will arrive?" "Usually it comes by 4:00."9."Excuse me。

could you please tell me how we can get to the post office?" The person responds。

"XXX along here。

It's next to a hospital."10.The person asks。

"Can you tell me how long it will take to get to Mount Emei?"11.XXX XXX to know when the meeting would start。

12.The person asks。

"Could you tell me when you will visit the Bamboo Garden?" The response is。

宾语从句【满分演练】一.单项填空I.Do you know _______ during the coming summer holiday?A.what will Tom doB. what did Tom doC. what Tom will doD. what Tom did2.1want to know _________ .A.what is his nameB. what's his nameC. that his name isD. what his name is3.Do you know _________ I could pass the exam?A.thatB. whetherC. whatD. which4.Jim doesn't understand ____________ .A.which is the way to the museumB.why his wife always goes shoppingC.what is the way to the museumD.why does she always go shopping5.…Could you tell me _______ she is looking for?A.thatB. whoseC. whoD. which6.Mr. King didn't know _______ yesterday evening.A.when does his son come homeB.when his son comes homeC.when did his son come homeD.when his son came home7.Could you tell me _______ the bike this morning?A. how does he mendB. how he mendsC. how he mendedD. how did he mend8.一-Km waiting for the mail. Do you know ________ it will arrive?…Usually it comes by 4: 00.A. howB. whereC. whenD. what9.■一Excuse me, would you please tell me ______ ?-一Certainly. Go straight along here. It's next to a hospital.A.how we can get to the post officeB.how can we get to the post officeC.how get to the post officeD.how could we get to the post office10.一-Can I help you?—Yes. I z d like a ticket to Mount Emei. Can you tell me _______ take to get there?A. how soon will itB. how soon it willC. how long it willD. how long will itII.He wan ted to know ___________ .A.whether he speaks at the meetingB.when the meeting would startC.what he's going to do at the meetingD.where would the meeting be held12.—Could you tell me _________ the Bamboo Garden?—The day after tomorrow, I think.A. when will you visitB. when you will visitC. when would you visitD. when you would visit13・ Would you please tell me ________ next, Mr Wang?A. what should we doB. we should do whatC. what we should doD. should we do what14. You can't imagine _________ when they received these nice Christmas presents.A. how they were excitedB. how excited they wereC. how excited were theyD. they were how excited15.1want to know ________ you will come back at 8:00 tomorrow・A. thatB. whenC. whereD. whether16.…Could you tell me _____________ ?…Sorry, I don't know. I was not at the meeting.A.what does he say at the meetingB.what did he say at the meetingC.what he says at the meetingD.what he said at the meeting17.…Could you tell me __________ last night?―Er, I was watching Euro 2004 at home・A. what you were doingB. what were you doingC. what you are doingD. what are you doing18.The teacher asked the students ___________ •A.if they were interested in dinosaursB.when was Albert Einstein bornC.what they will do with the computersD.how many trees they have plan ted19.Every morning the patients are asked if ________ their temperature taken.A. they had hadB. have they hadC. they have hadD. had they had20.It's up to you to decide _______ you'll go there, by air or by road.A. howB. whyC. thatD. when【练习答案】一.l.C 2.D 3.B 4.B 5.C 6.D 7.C 8.C 9.A 10.C ll.B 12.B 13.C 14.B 15.D 16.D 17.A 18.A19.C 20.A定语从句【满分演练】一.单项填空I.■一Who is the man _____ was talking to our English teacher?…Oh! It's Mr Baker, our maths teacher.A. heB. thatC. whomD. which2.1hate the people ________ don〃t help others when they are in trouble.A. whoB. whichC. theyD. where3.The foreigner _________ visited our school is from Canada・A. whichB. whenC. who D・ whom4.George Mallory was an English school teacher ________ loved climbing.A. whoB. whomC. heD. which5.This is the place _________ I have ever visited.A. thereB. whenC. whereD. which6.Nobody knows the reason _______ s he didn't come to the meeting・A. thatB. whichC. whyD. when7.The moon is a world ______ there is no life.A. thatB. whichC. whereD. why8.He has forgotten the day ________ h e arrived・A. whenB. whereC. thatD. which9.He still remembers the days ______ he spent with your family.A. whenB. whereC. thatD. on which10・ Mr. White, ____ car had been stolen, came to the policeman.A. whoB. thatC. whoseD. whichII.He got to the village _______ his family once lived before liberation.A. thatB. whichC. whenD. where12.This is the house ________ I want to buy.A. in which B・ that C. whose D. where13.This is the house ________ our beloved Premier Zhou once lived and worked.A. whichB. thatC. whenD. where14.He didn't tell me the place _______ he was born.A. thatB. whichC. whenD. where15・ He lived in a small village, _____ w as a long way from the railway station.A. thatB. whichC. whereD. when三.用适当的关系代词或关系副词填空1.The house _______ we live in is very big.2.The boy ______ is wearing the black jacket is very clever.3.This is the present _____ he gave me for my birthday.4.The man _______ talked to you just now is an engineen5.He talked about the teachers and schools ________ he had visited.6.There is nothing in the world ________ c an frighten him.7.She wears a gold ring, ______ is very uncomm on in our class.8.We visited a factory _______ makes toys for children.9.Is this the place _______ your father once lived?10.I'll never forget the days ________ I joined the League.【练习答案】一.l.B 2.A 3.C 4.A 5.D 6.C 7.C 8.A 9.C 10.C ll.D 12.B 13.D 14.D 15.B三.l.that/ which 2.who/ that 3.that/ which 4.who/ that 5.that 6.that 7.which8.which/ that 9.where lO.when状语从句【中考演练】一.单项填空1.______ h e's old, he can still carry this heavy bag.A. ThoughB. SinceC. ForD. So2.-一Do you know 讦he ____ to play basket ball with us?—I think he will come 讦he _____ free tomorrow・A. comes; is B・ comes; will be C. will come; is D. will come; will be3.In the zoo if a child ______ into the water and carVt swim, the dolphins may come up ______ h im.A. will fall; to helpB. falls; to helpC. will fall; helpD. falls; helping4.1dorft remember ________ he worked in that city when he was young.A. whatB. whichC. whereD. who5.We will stay at home 讦my aunt _______ to visit us tomorrow.A. comesB. come C・ will come D・ is comi ng6.The police asked the children ________ cross the street _________the traffic lights turned green.A. not; beforeB. dorft; whenC. not to; untilD. not; after7.1was late for class yesterday _______ there was something wrong with my bike.A. whenB. thatC. untilD. because8.I'll go swimming with you if I _________ free tomorrow.A. will beB. shall beC. amD. was9.In the exam, the ________ you are, ______ the _______ mistakes you will make.A. careful; littleB. more careful; fewestC. more careful; fewerD. more careful; less10.You should finish your lessons _______ you go out to paly.A. beforeB. afterC. whenD. while11.1hurried ____ I wouldbe late for class.A. sinceB. so thatC. as ifD. unless12・ When you read the book, you'd better make a mark ____________ you have any questio ns.A. whichB. thatC. whereD. though13.The teacher raised his voice ________ all the students could hear him.A. forB. so thatC. becauseD. in order14.He took off his coat _______ he felt hot.A. becauseB. asC. if D・ since15.It is _____ that we'd like to go out for a walk.A. a lovely dayB. too lovely a dayC. so lovely a dayD. such lovely a day16.Mary had _____ much work to do that she stayed at her office all day・A. suchB. soC. tooD. very17. ______ I felt very tired, I tried to finish the work.A. AlthoughB. BecauseC. AsD. As if18. _____ the day went on, the weather got worse.A. WithB. SinceC. WhileD. As19. _____ well you can drive, you must drive carefully.A. So long asB. In order thatC. No matter howD. The moment20.Write to me as soon as you ________ to Beijing.A. will getB. get C・ getting D・ got【练习答案】一.l.A 2.C 3.B 4.C 5.A 6.C 7.D 8.C 9.C 10.A 11.B 12.C 13.B 14.A 15.C 16.B 17.A 18.D19.C20.B。

初中语文三大从句专项训练引言初中语文中的从句是一种复杂句型，掌握从句的用法对于提高语文水平非常重要。

本文将围绕初中语文中的三大从句类型展开专项训练，包括定语从句、状语从句和宾语从句。

通过练这些从句，学生将更好地理解从句结构，提高阅读和写作能力。

一、定语从句定语从句是用来修饰名词或代词的从句，通过引导词来与主句连接。

以下是一些定语从句练：1. 下面的句子中，找出含有定语从句的选项：- A. 小明研究努力，在学校取得了好成绩。

- B. 那是我喜欢的那本新书。

- C. 今天是我在这个学校的第一天。

- D. 她手里拿着的那本书是我的。

2. 用适当的定语从句来修饰下面的句子：- A. 我喜欢的那个城市很美丽。

- B. 昨天送给我一束花的人是谁？- C. 在书架上放着的那本书是我最喜欢的。

- D. 我想买的那辆自行车很贵。

二、状语从句状语从句是用来修饰动词、形容词或副词的从句，通过引导词来与主句连接。

以下是一些状语从句练：1. 下面的句子中，找出含有状语从句的选项：- A. 我们一起去看电影吧。

- B. 他高兴地笑了起来。

- C. 她饿了，所以决定去吃点东西。

- D. 那个故事很有趣地讲述了一个冒险故事。

2. 用适当的状语从句来修饰下面的句子：- A. 我去农村，我可以帮助爷爷干活。

- B. 太阳升起了，我们出发去郊游。

- C. 天气很好，我们决定去海边玩。

- D. 请你告诉我，你是怎么学好英语的。

三、宾语从句宾语从句是充当动词的宾语的从句，通过引导词来与主句连接。

以下是一些宾语从句练：1. 下面的句子中，找出含有宾语从句的选项：- A. 她说她喜欢读书。

- B. 我不知道他在哪里。

- C. 她告诉我她要去旅行。

- D. 他问我是否喜欢运动。

2. 用适当的宾语从句来补充下面的句子：- A. 她说：“我爱你。

”- B. 他告诉我：“我没有做错事情。

”- C. 我想知道：“你什么时候回来？”- D. 她问我：“你喜欢什么颜色？”结论通过对定语从句、状语从句和宾语从句的训练，学生将更好地掌握这些从句的用法。

讲义二初中三大从句一、中考要求：从句、定从句、状从句的用法是中考点之一，主要考三种从句的引的；从句的序和；状从句主要考状从句、条件状从句、因果状从句，特是条件状从句的、so that引的果状从句和目的状从句等。

二、知要点：1. 从句：在句子中起作用的从句叫从句，中考主要考的知点有三个：引、序和。

从句的引有三种:1)that;2) whether/if ;3)特殊疑What/ when/ where/ who 等。

例如:He said that he could help me.他他能帮助我。

Your mother asked if you could finish your work this week.你个星期你能否完成工作。

Can you tell me when the sports meeting will begin ?你能告我运会将在什么候开始?1) 以that引的从句：that引的从句一般都是由述句充当，引that没有意,不在从句中作任何成分，that可以省略，而且从句成分全，句意完整。

Do you think (that) it will rain?你天会下雨?He said (that) he could come on time•他他会准来的。

2) 以whether或if引的从句：从属if, whether引的名从句是由一般疑句或疑化而来的，成从句后，序由原来的倒装序成述序。

whether和if意思是“是否气Let us know whether / if you can finish the work before Friday.我知道你是否能在星期五以前把工作做完。

I don 't care whether you like the story or not 我•不在乎你是否喜个故事。

注意：以下情况一般只用whether不用if。

①接to的不定式。

She doesn't know whether to go to the zoo 她•不知道是不是去物园。

（完整版）初中英语三大从句练习定语从句：（一）基础：引导词---who, which, that, whom,练习1.I like cities___________are quiet and clean. 2.I prefer students _________are hard- working.3.I hate TV shows _________ are noisy and boring.4.The music __________ is gentle and quiet attracts me a lot.5.The food __________tastes delicious is not always healthy.6.Those boys ___________ are playing basketballs over there are from Class Fifteen.7.The books ____________ are written by Lu Xun are worth reading.8.The town ___we visited last week is much larger than before.9.The book ___ he bought is very interesting.（二）特例：只用that的情况1先行词被___________或___________所修饰，或本身是______________________时，只能用that，2.被修饰的先行词为________________________________________________等不定代词时, 只能用that.3.先行词被_____________________________________________等词修饰时，只能用that，而不用which。

4.先行词里同时含有______________________，如I can remember well the persons and some pictures that I saw in the room.5. 以______________________引导的特殊疑问句，只能用that.如：Who is the girl that is crying?练习1. I am interested in everything___ is about the 2006 World Cup.2. Is there anything___I can do for you?3. This is the very bike ______I lost4.To my surprise, he gave me nothing __ I need.5.This is the best dictionary __ I have ever used.6. He was the first person _______passed the exam.7.He talked happily about the men and books________interested him greatly.（三）whose 1. The student ______father works in the factory is sitting there.2. I like the rooms ______windows face south.3. This is the desk ______legs were broken.4The woman ___ umbrella you took is angry about it.5.Here comes a girl ___ handwriting is the best .6The banana __skin is green can’t be eaten.7That tall tree _ leaves are yellow is very old.（四）从句谓语单复数由先行词确定，时态由从句时间状语决定，不必跟主句保持一致。