状语从句详解及练习题附答案1 时间状语从句：在一个句子中作时间状语的句子。

时间状语的连接词：when(当…时候) while(当…时候) as(当…时候) after(在…以后) before(在…以前) as soon as(一…就) since(自从…到现在) till /until(直到…才) by the time(到…为止)依旧是连接词后加陈述语序。

举例：when当…的时候(一般情况下主句是将来时的时候，从句要用一般现在时。

) Mozart started writing music when he was four years old.2 原因状语从句：在一个句子中作原因语的句子。

连接词：由连词because, since, as引导, 也可由for, now that 等词引导。

举例：I didn’t go to school yesterday because I was ill.3 条件状语从句连接词：if如果, unless (=if not) 除非。

(让步)举例：If it doesn’t rain tomorrow, we will go hiking.4 目的、结果状语从句目的状语从句是指在一个句子中充当目的状语的句子。

结果状语从句是指在一个句子中充当结果状语的句子目的状语从句连接词so that, so…that , in order that 引导。

结果状语从句连接词so…that, such…that, so much/many…that引导。

举例：so…that 如此…以至于The scientist’s report was so instructive that we were all very excited.5 让步状语从句让步状语从句是指在句子中作让步的状语的句子连接词：though, although.，whether…or not举例：Although he is rich, yet he is not happy.状语从句分类1．时间状语从句常用引导词：when, as, while, as soon as, while, before, after, since , till, until特殊引导词：the minute, the moment, the second, every time, the day，the instant, immediately , directly, no sooner … than, hardly …when, scarcely … whenI didn’t realize how special my mother was until I became an adult.While John was watching TV, his wife was cooking.The children ran away from the orchard(果园) the moment they saw the guard.No sooner had I arrived home than it began to rain.Every time I listen to your advice, I get into trouble.2．地点状语从句常用引导词：where特殊引导词：wherever, anywhere, everywhereGenerally, air will be heavily polluted where there are factories.Wherever you go, you should work hard.3．原因状语从句常用引导词：because, since, as, since特殊引导词：seeing that, now that, in that, considering that, given that, considering that,My friends dislike me because I’m handsome and successful.No w that everybody has come, let’s begin our conference.The higher income tax is harmful in that it may discourage people from trying to earn more. Considering that he is no more than 12 years old, his height of 1.80 m is quite remarkable.4．目的状语从句常用引导词：so that, in order that特殊引导词：lest, in case, for fear that，in the hope that, for the purpose that, to the end thatThe boss asked the secretary to hurry up with the letters so that he could sign them.The teacher raised his voice on purpose that the students in the back could hear more clearly.5．结果状语从句常用引导词：so … that, so… that, such … that,特殊引导词：such that, to the degree that, to the extent that, to such a degree that,He got up so early that he caught the first bus.It’s such a good chance that we must no t miss it.To such an degree was he excited that he couldn’t sleep last night.6．条件状语从句常用引导词：if, unless,特殊引导词：as/so long as, only if, providing/provided that, suppose that,in case that, on condition thatWe’ll start our project if the president agree s.You will certainly succeed so long as you keep on trying.Provided that there is no opposition, we shall hold the meeting here.7．让步状语从句常用引导词：though, although, even if, even though特殊引导词：as(用在让步状语从句中必须要倒装)，while ( 一般用在句首)，no matter (i)spite of the fact that, while, whatever, whoever, wherever, whenever, however, whicheverMuch as I respect him, I can’t agree to his proposal.尽管我很尊敬他，我却不同意他的建议。

状语从句练习单项选择1. John shut everybody out of the kitchen ______he could prepare his grand surprise for the party.A. whichB. whenC. so thatD. as if2. I would appreciate it ________you call back this afternoon for the doctor’s appointment.A. untilB. ifC. whenD. that3. As far as I am concerned，education is about learning and the more you learn，________.A. the more for life are you equippedB. the more equipped for life you areC. the more life you are equipped forD. you are equipped the more for life4.After the war，a new school building was put up ________there had once been a theatre.A. thatB. whereC. whichD. when5. —Is Mr. Smith in the office?—Yes，________ he is in charge of the office，he must be there.A. sinceB. howeverC. whetherD. for6. As your good friend, I will do ________help you.A. that I can toB. what I can toC. all that I canD. what I can7.John may phone tonight. I don’t want to go out ________he phones.A. as long asB. in order toC. in caseD. so that8.Someone called me up in the middle of the night，but they hung up ________I could answer the phone.A. asB. sinceC. untilD. before9. —Don’t look down upon Bob. He has his own advantages.—Oh, yes. ________others are weak, he is strong.A. IfB. WhenC. WhereD. Though10.It is ten years ________he smoked.A. thatB. whenC. sinceD. while11.We must hurry up ________catch up with the last train.A. thatB. so that toC. in order thatD. in order to12.No matter ________hard it may be，I will carry it out.A. whatB. whateverC. howD. however13.________ you may do，you must do it well.A. WhichB. WheneverC. WhateverD. When14. —Are you thinking about going to New York for the holiday?—No. But if I ________the time，I would definitely go.A. haveB. hadC. have hadD. would have15.________ you are so weak，you’d better stay at home.A. SinceB. ForC. BecauseD. Though16. English and French are taught here. You can choose ________you like.A. no matter whichB. whicheverC. whichD. whatever17.I saw Mr. Smith last Sunday. We had not seen each other ________I left London.A. asB. beforeC. sinceD. till18.I’ll be back before you ________.A. will leaveB. will have leftC. leaveD. would leave19.The problem won’t be settled until we ________a chance to discuss it thoroughly.A. have hadB. will haveC. will have hadD. would have20.If you ________this experiment，you will understand the theory better.A. will be doingB. have doneC. will have doneD. would do21.They went on working ________it was late at night.A. even ifB. as ifC. howeverD. as though22.I hurried ________I wouldn’t be late for class.A. sinceB. so thatC. as ifD. unless23.The volleyball match will be put off if it ________.A. will rainB. rainsC. rainedD. is raining24.________ you talk to someone or write a message，you show your skills to others.A. At timesB. Some timeC. By the timeD. Every time25.Although he is considered a great writer，________.A. however his works are not widely readB. but his works are not widely readC. his works are not widely readD. still his works are not widely read26.The new secretary is supposed to report to the manager as soon as she ________.A. will arriveB. is going to arriveC. arrivesD. is arriving27.We should finish the important job，________.A. long it takes howeverB. it takes however longC. long however it takesD. however long it takes28.________he made an important speech at the meeting was true.A. ThatB. WhyC. WhatD. How29.________comes to the party will receive a gift.A. WhichB. WhoC. Which oneD. Whoever30.She is willing to help you, ________busy she is.A. whatB. howC. howeverD. whatever31.I don’t care whether he stays ________goes.A. norB. thenC. orD. otherwise32.No matter ________hard it may be，I’ll carry it out.A. whatB. whateverC. howD. however33.Why do you want to find a new job ________you’ve got such a good one already?A. thatB. whereC. whichD. when34.________he is, he will be thinking of you.A. WhereverB. WhereC. Now thatD. As soon as35.You should make it a rule to leave things ________you can find them again.A. whenB. whereC. thenD. there36.He got excited at the news，________ I was calm.A. whenB. whileC. becauseD. after37.—Shall Brown come and play computer games?—No，________ he has finished his homework.A. whenB. ifC. unlessD. once38.________ you try，you will never succeed.A. IfB. UntilC. SinceD. Unless39.Hardly had he arrived in Hongkong ________she rang me up.A. whenB. thanC. thatD. and40.________ they heard the shout for help，they rushed out.A. ImmediatelyB. The momentC. The whileD. All the above41.________，he never seems able to do the work beautifully.A. Try as he doesB. as he triesC. Try as does heD. As he does try42.—The air is full of smoke and people are coughing.—It will get worse ________the government does something about the pollution.A. butB. unlessC. exceptD. if43.If ________，I would have gone with him.A. had he told meB. he had told meC. he has told meD. he would tell me44.—Alice is moving to her new apartment next Saturday.—I’ll be glad to help her，________ need some help.A. should sheB. if she willC. if sheD. if she might45.I came ________I heard the news.A. untilB. as soon asC. immediatelyD.B and C46.What we have seen________.A. from what we heardB. all what we heardC. to what we have heardD. from what we have heard47.We will never give in ________they might do or say about our plan.A. no matter howB. howC. whateverD. although48.If you go to Xi’an，you will find the places there more magnificent than commonly ________.A. supposingB. supposedC. to supposeD. suppose49.________ he comes，we would not be able to go.A. WithoutB. UnlessC. ExceptD. Even50.It’s no wonder you’ve got a headache ________you drank so much last night.参考答案：1~5 CBBBA 6~10 BCDCC11~15 DCCBA 16~20 BCCAB21~25 ABBDC 26~30 CDADC31~35 CCDAB ; 36~40 BCDAD41~45 ABBAD 46~50 DCBBC。