高中英语状语从句讲解和练习(含答案)

高三英语状语从句练习题30题(带答案)1. I was doing my homework ______ my mother came in.A.whenB.whileC.asD.since答案解析：A。

“when”既可以表示点时间，也可以表示段时间，这里表示“当……的时候”，我正在做作业的时候妈妈进来了，动作有先后；“while”通常表示一段时间，后面的动词常用进行时态；“as”强调两个动作同时进行；“since”表示“自从”，意思不符。

2. We were having a meeting ______ the fire alarm went off.A.whenB.whileC.asD.since答案解析：A。

理由同第一题，这里是表示一个动作正在进行的时候另一个动作突然发生，用“when”；“while”后面一般是持续的动作；“as”也强调同时性；“since”意思不对。

3. She was singing ______ she was walking.A.whenB.whileC.as答案解析：C。

“as”强调两个动作同时进行，她一边走路一边唱歌；“when”“while”也有同时性，但没有“as”强烈；“since”意思不符。

4. I had just fallen asleep ______ the phone rang.A.whenB.whileC.asD.since答案解析：A。

表示一个动作刚发生，另一个动作紧接着发生，用“when”；“while”后面动作一般是持续的；“as”也有同时性，但这里不太合适；“since”意思不对。

5. He was reading a book ______ I was watching TV.A.whenB.whileC.asD.since答案解析：B。

“while”表示两个动作同时进行，他在读书的时候我在看电视；“when”可以表示同时，但更强调先后；“as”也强调同时性，但不如“while”好；“since”意思不符。

高中英语状语从句练习题20题答案解析版1.She was reading a book when the phone rang.A.whileB.as soon asC.afterD.before答案解析：A 选项while 也可表示“当……的时候”，但通常强调两个动作同时进行；B 选项as soon as 意为“一……就……”；C 选项after 表示“在……之后”；D 选项before 表示“在……之前”。

本题中when 表示“当……的时候”，强调“正在读书的时候电话响了”，所以答案是when。

2.We were having dinner when suddenly there was a loud noise.A.asB.whileC.sinceD.until答案解析：A 选项as 也可表示“当……的时候”，与when 用法相似；B 选项while 强调两个动作同时进行；C 选项since 表示“自从”；D 选项until 表示“直到……才”。

本题中when 强调“正在吃饭的时候突然有很大的噪音”，所以答案是when。

3.I will call you as soon as I arrive.A.whenB.whileC.afterD.before答案解析：A 选项when 表示“当……的时候”；B 选项while 强调两个动作同时进行；C 选项after 表示“在……之后”；D 选项before 表示“在……之前”。

本题中as soon as 表示“一……就……”，强调动作的迅速发生，所以答案是as soon as。

4.He had just fallen asleep when the alarm clock rang.A.whileB.asC.sinceD.until答案解析：A 选项while 强调两个动作同时进行；B 选项as 也可表示“当……的时候”；C 选项since 表示“自从”；D 选项until 表示“直到……才”。

高中英语让步状语从句用法练习题30题含答案解析1.Although it was raining heavily, the students still went to school on time.A.still went to school on timeB.didn't go to schoolC.went to school lateD.stayed at home答案解析：A。

这句话中although 引导让步状语从句，意为“虽然……但是……”，虽然雨下得很大，但是学生们仍然按时去上学。

B 选项“didn't go to school”不符合语境；C 选项“went to school late”与原句意思相反；D 选项“stayed at home”也不符合语境。

2.Though he is very tired, he continues to work.A.continues to workB.stops workingC.takes a breakD.goes home答案解析：A。

though 引导让步状语从句，虽然他很累，但是他继续工作。

B 选项“stops working”停止工作，与原句意思相反；C 选项“takes a break”休息，也不符合；D 选项“goes home”回家，同样不符合。

3.Although the exam was difficult, many students passed it.A.many students passed itB.no students passed itC.only a few students passed itD.all students failed it答案解析：A。

although 引导让步状语从句，虽然考试很难，但是很多学生通过了。

B 选项“no students passed it”没有学生通过，与原句意思相反；C 选项“only a few students passed it”只有几个学生通过，不如原句表达的通过的学生多；D 选项“all students failed it”所有学生都没通过，不符合语境。

高考英语状语从句选择超级高级练习题20题(答案解析)1._____ the new technology is widely adopted, it will greatly improve our daily lives.A.IfB.AlthoughC.BecauseD.Unless答案解析：A。

“如果新技术被广泛采用，它将极大地改善我们的日常生活。

”if 引导条件状语从句，表示“如果”；although 表示“虽然”，引导让步状语从句，不符合语境；because 表示“因为”，引导原因状语从句，不符合语境；unless 表示“除非”，引导条件状语从句，意思不符。

2.In recent years, as environmental protection has become a hot topic, more and more people realize that we should take action _____ it is too late.A.afterB.beforeC.sinceD.when答案解析：B。

“近年来，随着环境保护成为一个热门话题，越来越多的人意识到我们应该在为时已晚之前采取行动。

”before 引导时间状语从句，表示“在……之前”；after 表示“在……之后”，不符合语境；since 表示“自从”，引导时间状语从句，不符合语境；when 表示“当……的时候”，不符合语境。

3._____ we face difficulties, we should keep calm and find solutions.A.WheneverB.HoweverC.WhereverD.Whatever答案解析：A。

“无论何时我们面临困难，我们都应该保持冷静并找到解决方案。

”whenever 引导时间状语从句，表示“无论何时”；however 表示“无论如何”，引导让步状语从句，但后面要接形容词或副词；wherever 表示“无论哪里”，引导地点状语从句，不符合语境；whatever 表示“无论什么”，引导让步状语从句，但后面要接名词。

高三英语状语从句练习题30题含答案解析1. I was reading a book when suddenly the lights went out.A. whenB. whileC. asD. since答案解析：A。

“when”在这里表示“就在这时”，强调一个动作正在进行的时候另一个动作突然发生。

“while”通常强调两个动作同时进行，这里不合适。

“as”也有当……的时候的意思，但语气没有“when”强烈。

“since”表示自从，不符合语境。

2. She had just fallen asleep when the phone rang.A. whenB. whileC. asD. until答案解析：A。

“when”在此处表示一个动作刚发生另一个动作紧接着发生。

“while”一般用于两个动作同时进行。

“as”也有类似的意思，但不如“when”常用。

“until”表示直到……才，与语境不符。

3. I was taking a shower as he came in.A. asB. whenC. while答案解析：A。

“as”表示当……的时候，强调两个动作同时发生。

“when”也有当……的时候的意思，但在这里不如“as”贴切。

“while”强调两个动作同时持续进行。

“since”表示自从，不合适。

4. He was watching TV when his friend arrived.A. whenB. whileC. asD. after答案解析：A。

“when”表示一个动作正在进行时另一个动作突然发生。

“while”强调两个动作同时进行。

“as”也可表示当……的时候，但这里用“when”更自然。

“after”表示在……之后，不符合语境。

5. I had just finished my homework when my mom came back.A. whenB. whileC. asD. before答案解析：A。

高中英语时间状语从句结构练习题20题【含答案解析】1. I will call you ____ I arrive in Beijing.A. as soon asB. whileC. untilD. since答案解析：A。

本题考查时间状语从句的引导词。

as soon as表示“一……就……”，句意为我一到达北京就给你打电话，符合语境。

while表示“当……的时候”，强调主句和从句的动作同时进行；until表示“直到……”；since表示“自从……”，这三个选项代入句子中语义不通。

2. ____ he was reading, his mother came in.A. AsB. SinceC. UntilD. Before答案解析：A。

as引导时间状语从句时，表示“当……的时候”，强调两个动作同时进行，句中他正在读书的时候，他妈妈进来了，符合语境。

since表示“自从……”或“因为”；until表示“直到……”；before表示“在……之前”，这几个选项不符合句子语义。

3. We won't start the meeting ____ everyone arrives.A. becauseB. untilC. if答案解析：B。

until表示“直到……才”，句子的意思是直到每个人都到了我们才会开始会议。

because表示原因；if表示假设；though表示让步，这三个选项均不符合句子的逻辑关系。

4. ____ I got home, my mother had cooked dinner.A. By the timeB. At the timeC. In timeD. On time答案解析：A。

by the time表示“到……的时候”，通常引导的从句用一般过去时，主句用过去完成时，句中我到家的时候，妈妈已经做好了晚饭，时态和语义都符合。

at the time表示“在那个时候”；in time表示“及时”；on time表示“按时”，均不符合题意。

高中英语时间状语从句结构练习题20题(答案解析)1. I was reading a book ____ my mother came in.A. whenB. whileC. asD. since答案解析：A。

when引导时间状语从句时，从句的动作可以与主句的动作同时发生，也可以先于主句动作发生。

在此句中，“我正在读书”这个动作正在进行时，“妈妈进来”这个动作突然发生，这种情况下用when。

while强调主句和从句的动作同时进行，通常从句用进行时态；as表示“一边……一边……”或者强调两个动作同时进行，并且有随着的意思；since表示“自从……以来”，引导原因状语从句或者时间状语从句（表示从过去某个时间点开始一直持续到现在），在这里不符合语境。

2. ____ he was young, he liked to play football.A. WhenB. WhileC. AsD. Until答案解析：A。

when可以表示在某个特定的时间点或者时间段内，“当他年轻的时候”，表示在他年轻这个时间段内，他喜欢踢足球。

while 强调同时进行，在这里语义不符；as有多种含义，但在此处表示“当……时”没有when简洁准确；until表示“直到……”，与句子意思不符。

3. She didn't leave ____ I came back.A. whenB. whileC. asD. until答案解析：D。

until表示“直到……才”，句子的意思是“直到我回来她才离开”。

when、while、as都没有这种“直到……才”的语义。

4. ____ we were walking in the park, we saw a beautiful bird.A. WhenB. WhileC. AsD. Since答案解析：C。

as表示“当……时”，强调两个动作同时进行，并且有随着的意思，“当我们在公园散步的时候（随着我们在公园散步这个动作的进行），我们看到了一只美丽的鸟”。

高中英语目的状语从句练习30题(答案解析)1.She gets up early every day so that she can catch the first bus.A.in order toB.in order thatC.so as toD.so as that答案解析：B。

本题考查目的状语从句的引导词。

选项A 和C“in order to”“so as to”后面接动词原形，不能引导目的状语从句；选项D“so as that”不存在这种用法；选项B“in order that”可以引导目的状语从句，符合题意。

2.He studies hard so that he can pass the exam.A.in order toB.in order thatC.so as toD.so as that答案解析：B。

理由同上题。

“in order to”和“so as to”后接动词原形，不能引导从句；“so as that”错误用法；“in order that”引导目的状语从句正确。

3.She saves money so that she can buy a new bike.A.in order toB.in order thatC.so as to答案解析：B。

“in order to”“so as to”接动词原形；“so as that”不存在；“in order that”引导目的状语从句，符合本题。

4.He runs fast so that he can catch up with others.A.in order toB.in order thatC.so as toD.so as that答案解析：B。

分析同前面几题。

“in order to”“so as to”后不能引导从句；“so as that”错误；“in order that”正确引导目的状语从句。

3状语从句讲解及专项练习(附答案)精锐教育学科教师辅导讲义curiosity _______________________ h e reached the end of the story.A. whenB. unlessC. afterD. until2. He transplanted the little tree to the garden it was the best time for it.A. whereB. whenC. thatD. until3. H e was about to tell me the secret someone patted him on the shoulder.A. asB. untilC. whileD. when4. ___ y ou understand this rule, you'll have no further difficulty.A. WhileB. OnceC. ThoughD. Unless5. S ubstances will expand or contract heated or cooled, but this is not the case with water.A. when they will beB. if they will beC. as they beingD. when6. I t will not be long man can harness the solar energy and make it serve mankind.A. sinceB. beforeC. whenD. after7. I t was found that although the girl could perceive things with her fingers, this ability ceased her hands were wet.A. the moment whenB. the momentC. in that momentD. before8. A man escaped from the prison last night. It was a long time the guards discovered what had happened.A. beforeB. untilC. sinceD. when9. W e hadn't met for 20 years, but I recognized her I saw her.A. the momentB. the moment whenC. for the momentD. at the moment when10. __ he entered the university, his English has been much improved.A. BeforeB. AfterC. WhenD. Since11. ___________________ H e has been to Beijing for several times _________________ h e came to China.A. beforeB. whenC. sinceD. as12. _________ I watched him he disappeared from sight in the distance.A. unlessB. untilC. asD. when13. ______________ It was going to be some time he would see his parent again.A. sinceB. untilC. whenD. before14. _____________________ M any young people rose and shouted the pop singer appeared on the stage.A. at the momentB. on seeingC. the momentD.when they saw15. he made up his mind to do something, nothing can change his mind.A. OnceB. UnlessC. AlthoughD. As soon as16. _______________________________ They had only been married for no more than three months they began to quarrel with each other.A. sinceB. untilC. afterD. before17. __________________ Scarcely had I finished the workI went home.A. beforeB. thanC. asD. when18. ___________________ We were walking down the street he saw one of his old friends.A. thenB. whenC. soD. but19. ____ It he returns to his native land.A. is long before thatB. is long beforeC. won't be long beforeD. will be long since20. __ the Europeans knew what a compass was, the Chinese had put it into practical use.A. Before longB. Long sinceC. Long agoD. Long beforeA. untilB. ifC. lestD. with2. I'll give you a lift I get home you get off.A. before... ifB. after... asC. if... beforeD. until ... before3. Y ou'll succeed in time you study hard.A. unlessB. as long asC. even ifD. even though4. T he robber told him that he had better keep silent he wanted to get into trouble.A. ifB. unlessC. otherwiseD. whether5. I have made a promise anyone can tell me the secret, I'll give him a little present.A. that ifB. thatC. whenD. so long as6. D on't let her leave the department she is not ready to.A. ifB. thoughC. unlessD. till7. I wrote these words down I should forget.A. forB. soC. lestD. since8. W e are sure to do the work well we don't lose heart.A. forB. so long asC. as ifD. since9. H e would be punished he should make the same mistake again.A. unlessB. ifC. providedD. lest10. _______________________Anyone can borrow books from this library he keeps them clean and returns them in time.A. even ifB. unlessC. so thatD. as long as11. __ you return those books to the library immediately, you will have to pay a fine.A. UntilB. UnlessC. IfD. Provided12. _____________________________ T he parents did not allow their son to swim in the sea he might have an accident some day.A. for fear thatB. in case ofC. besidesD. and that13. _________________________ It is a gripping story and one can't put it down one has finished reading it.A. afterB. whenC. unlessD. until14. _________________ They agreed to rent the house the roof should be repaired.A. on condition thatB. as soon asC. whenD. unless15. _____________________ The more civilized man has become, he is limited by the disadvantage of his environment.A. and the moreB. the lessC. testD. and theA. However late is heB. However he is lateC. However is he lateD. However late he is2. I f we work with a strong will, we can overcome any difficulty, great it is.A. whatB. howC. howeverD. whatever3. __ , I have never seen anyone who's as capable as John.A. As long as I have traveledB. Now that I have traveled so muchC. Much as I have traveledD. As I have traveled so much4. —Dad, I've finished my assignment.—Good, and you play or watch TV, you mustn't disturb me.A. wheneverB. whetherC. whateverD. no matter5. I f that idea is wrong, the project is bound to fail, good all the other ideas might be.A. whateverB. thoughC. whatsoeverD. however6. __ , I have never read any article as good as this one.A. As i have read muchB. Now that I have read so muchC. Much as I have readD. As I have read so much7. __ we want to help each other, we should point out each other's shortcomings.A. Now thatB. AlthoughC. UnlessD. When8. —Did you enjoy yourself atthe party?—Yes, I didn't knowanybody.A. evenB. even thoughC. as ifD. as though9. __ difficulties we meet, we will always keep on trying to do our best.A. HowB. HoweverC. WhatD. Whatever10. _______ Naughty Tom is, he is never late his homework.A. as; forB. though; withC. that; byD. while; with11. _______________________________________ The landowners in India would not vote to lose their land and wealth, it resulted ___________________ a fairer society.A. whether; ofB. even though; ofC. as if; inD. even if; in12. __________ No matter how , he couldn't do any better.A. he worked hardB. hard he workedC. hardly he workedD. he worked hardly13. _______________________ My father doesn't want to buya car now, he needs one in fact.A. butB. soC. becauseD. though14. Shanghai many times, but he still doesn't know the city very well.A. He has been toB. He has gone toC. Though he has been toD. Having been to15. life in a poor country can be difficult, it can broaden a person's view of the world.A. IfB. AlthoughC. BecauseD. When16. it is that you've found, you must give it back to the person it belongs to.A. ThatB. BecauseC. WhateverD. However17. __________________________ H e gave up the hope of passing the examination he had already failed it twice.A. unlessB. ifC. sinceD. until18. as he is, he has rich experience in teaching.A. The youngB. The young manC. A young manD. Y oung man19. __________________________ R od is determined to get a1. He has that it is difficult for him to travel.A. such heavy a work loadB. too heavy a work loadC. so heavy a work loadD. much heavy a work load2. S he was so angry at all ____ he was doing she walked out, and closed the door.A. that. .. thatB. what. .. thatC. what. . . asD. that... which3. T here was such a long line at the exhibition we had to wait for about half an hour.A. asB. thatC. soD. hence4. _ that I couldn't support myself at that moment.A. I was weak enoughB. I was too weakC. So weak I wasD. So weak was IKeys: 1-4 C A B DStep4. 综合训练Part 1.1. —What was the party like?—Wonderful. It's years I enjoyed myself so much.A. afterB. beforeC. whenD. since2. M other was worried because little Alice was ill, especially father was away in France.A. asB. thatC. duringD. if3. W hy do you want a new job you got such a good one already?A. thatB. whereC. whichD. when4. A fter the war, a new school building was put up there had once been a theatre.A. thatB. whereC. whichD. when5. Y ou will be late you leave immediately.A. unlessB. untilC. ifD. or6. I f we work with a strong will, we can overcome any difficulty, great it is.A. whatB. howC. howeverD. whatever7. S he doesn't speak her friend, but her written work is excellent.A. as well asB. so often asC. so much asD. as good as8. H e'll be happy he may be.A. whenB. ifC. becauseD. wherever9. W e'll build a power station water resources are plentiful.A. whereB. in whichC. becauseD. wherever10. _____________________________________ The new secretary is supposed to report to the manager as soon asshe .A. will arriveB. arrivesC. is arrivingD.is going to arrive11. ______________________ T he volleyball match will be put off if it .A. will rainB. rainsC. rainedD. is raining12. ______________________________ Remember to send mea photo of your son next time you to me.A. writeB. will writeC. are writingD. would write13. _________ If city noises from increasing, people shout to be heard even at the dinner table in 20 years from now.A. are not kept; will have toB. are not kept; have toC. do not keep; will have toD. do not keep; have to14. ____________________ I need one more stamp before my collection _______________ .A. has completedB. completesC. has been completedD. is completed15. ______ As she _______ the newspaper, Granny a sleep.A. read; was fallingB. was reading; fellC. was reading; was fallingD. read; fell16. _____If it _______ for the snow, we the mountain yesterday.A. were not; could have climbedB. were not; could climbC. had not been; could have climbedD. had not been; couldclimb17. ______ —If he , he that food.—Luckily he was sent to the hospital immediately.A. was warned; would not takeB. had been warned; wouldnot have takenC. would be warned; had not takenD. had warned;wouldn't have got18. ________ It is 50 years the People's Republic of China was founded.A. afterB. beforeC. whenD. since19. _____________ Not until I began to work how much timeI had wasted.A. didn't I realizeB. did I realizeC. I didn't realizeD. I realized20. __________________ Not until all the fish died in the river how serious the pollution was.A. did the villagers realizeB. the villagers realizedC. the villagers did realizeD. didn't the villagers realize Keys:1-5 DADBA 6-10 CADAB 11-15BAADB 16-20 CBDBAPart 2.21. _____ It was it rained heavily that they didn't come.A. asB. becauseC. forD. since22. _____________ Why not buy a cheaper one, you don't have enough money?A. sinceB. becauseC. forD. though23. _________ I t is ten years I left home.A. whenB. afterC. sinceD. as24. ____________ He speaks English he speaks his mother tongue.A. so good asB. as good asC. so well asD. aswell as25. ____ Try h e might, he couldn't get out of difficulty.A. whenB. whereC. tillD. as26. _ I saw the computer, I showed great interest in it.A. At firstB. For the first timeC. UntilD. Thefirst time27.I don't think you'll be able to understand thisformula(公式) you finish school.A. as ifB. only whenC. evenD. even when28.I often visited Tian An Men Square I was staying in Beijing.A. untilB. duringC. whileD. throughout29. _______________ H e always thinks I'm wrong, I say.A. no matter whateverB. whateverC. whatD. that30. _ t he rain has stopped, let's continue to work.A. ForB. Now thatC. ThatD. Because31. _ , I am sure that the boy is honest.A. Whatever people sayB. No matter people sayC. What people sayD. It doesn't matter people say32. __________ I knew Mr. Green I knew Mrs. Green.A. long beforeB. before longC. long agoD.after long33. _______ They waited ________ it was dark before leaving, they didn't want anyone to see them leave.A. since; becauseB. until; asC. unless; forD.so; because34. _ o ften you ring, no one will answer.A. HowB. HoweverC. WhomD. Whenever35. ___________ I will never give up they do to stop me.A. no matter whatB. howC. whatD.though36. _______ Father was ____ busy in working he often forgot rest or meals.A. very; thatB. so; thatC. such; asD.enough; as37. _____________ We made a decision there would be rain, we should stay at home.A. thatB. ifC. that ifD. whether38. ___________________ I usually watch TV in the eveningI have to study for an examination.A. becauseB. unlessC. whileD. the moment39. _____________________ I had lived there for over thirty years I wanted to return to my motherland again.A. untilB. afterC. whileD. when40. ____________ It was a long time I went to sleep again.A. whenB. whileC. beforeD. until41. ___________ H e must be ill, he looks so pale.A. sinceB. becauseC. asD. for42. __________ I'll take no steps you arrive.A. andB. sinceC. untilD. while43. ___________ You will catch cold put on more clothes.A. if youB. if you will notC. unless youD.until you44. _ he woke slept, this subject was always in his mind.A. If; andB. Both; andC. Either; orD. Whether; or45. ___________________ We had hardly got to the station it began no rain.A. untilB. sinceC. whileD. when46. _________________________________They were surprised that a child should work out the problem they themselves couldn't.A. onceB. thenC. whileD. if47. ___________ My name is Robert, most of my friends call me Bob for short.A. thenB. insteadC. howeverD. but48. __ difficulties are ahead, we are sure to make greater achievements.A. Although; yetB. Although; stillC. /; yetD. allof the above49. _____________________ People don't know the value of health they lose it.A. tillB. beforeC. afterD. Either A or B50. ____________ I didn't help him, not I was unwilling.A. becauseB. sinceC. asD. forKeys:21-25 BACDD 26-30 DDCBB 31-35 AABBA 36-40 BCBDC41-45 DCCDD 46-50 CDDDAPart 3.51. __________ I really wonder he has posted me many parcels we worked together.A. how; afterB. why; whenC. when; beforeD. why; since52. __ t he desert can be called a sea, the camels are the ships in the sea.A. When; soB. If; thenC. Because; soD.If; so53. ______________________ One never expects his success to come he decides to take up hard work.A. whileB. whenC. untilD. since54. _ you talk to someone or write a message, you show your skills to others.A. At timesB. Every timeC. By the timeD.Some times55. ________________________ Although he is so considered a great writer, .A. his works are not widely readB. but his works are notwidely readC. however his works are not widely readD. still hisworks is not widely read56. _ he came to town, he would visit our school.A. AfterB. WhenC. AsD. While57. ______ I hurried I wouldn't be late for class.A. sinceB. so thatC. as ifD. unless58. _ he comes, we won't be able to go.A. WithoutB. UnlessC. ExceptD. Even59. _______ It wasn't the city was liberated.A. long untilB. long beforeC. long afterD.long when60. _________________________________ T he conductor often tells the passengers not to get off the bus it has stopped.A. exceptB. unlessC. untilD. as61. __________ Did you pay a visit during the holidays?A. any placeB. anywhereC. whereD. wherever62. ____________ It was for two weeks mother had been inhospital.A. sinceB. thatC. in whichD. which63. ______ It was _______ I was in college I began to write letters in English.A. since; thatB. that; whenC. when; thatD.where; did64. __________ I shall ring you up you should forget it.A. becauseB. forC. in caseD. in order notthat65. __ it is so fine a day today, we'd better go outing and havea picnic.A. UnlessB. SinceC. WhileD. Although66. ____ As as I know, there isn't anything left to eat.A. soonB. farC. longD. well67. ______________________ The doctor in charge told the young man he didn't allow him to operate on his wounded arm, he would lose it.A. thatB. ifC. whetherD. unless68. _ , we should try our best to protect the environment.A. Whatever people sayB. What people sayC. No matter people sayD. It doesn't matter people say69. __________ You will succeed y ou keep on working at it.A. as far asB. as long asC. as good asD. as hard as70. _______________ The machine is so old it can't be used any more some of its parts are changed.A. as; unlessB. that; unlessC. that; ifD.whether; or71. —My watch started up again.—You should have it repaired it's working now.A. sinceB. untilC. howeverD. even though72. __________ I'm going away; she will go is up to her to decide.A. if or notB. whether or notC. howeverD.even though73. _____________ We couldn't feel air i t were moving.A. as long asB. now thatC. if notD.unless74. _____________________ We can't afford to buy that flat. It's expensive for us.A. too muchB. far moreC. much tooD. very too75. _______________ The moon is much closer to us .A. than any other starB. than any starC. as any otherstar D. like other stars76. _ to my surprise, he forgot my birthday at all.。

高中英语时间状语从句结构练习题20题含答案解析1.I will call you as soon as I_____home.A.getB.gotC.will getD.have got答案解析：A。

as soon as 引导的时间状语从句遵循“主将从现”原则，主句用一般将来时，从句用一般现在时。

2.We were having a picnic when it_____to rain.A.beganB.beginsC.will beginD.has begun答案解析：A。

when 引导的时间状语从句，主从句动作同时发生，主句用过去进行时，从句用一般过去时。

3.She has been learning English since she_____five.A.isB.wasC.will beD.has been答案解析：B。

since 引导的时间状语从句，从句用一般过去时，主句用现在完成进行时。

4.The moment I saw him, I_____him.A.knowB.knewC.will knowD.have known答案解析：B。

the moment 引导时间状语从句，主从句动作同时发生，从句用一般过去时，主句也用一般过去时。

5.Until he finishes his homework, he can't watch TV.A.canB.can'tC.couldD.couldn't答案解析：B。

until 引导时间状语从句，主句用否定形式，意为“直到……才”。

6.He had left before I_____.A.arrivedB.arriveC.will arriveD.have arrived答案解析：A。

before 引导时间状语从句，主从句动作先后发生，主句用过去完成时，从句用一般过去时。

7.After he had eaten breakfast, he went to school.A.wentB.goesC.will goD.has gone答案解析：A。