主将从现练习题及答案
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主将从现练习题及答案精品文档主将从现练习题及答案主将从现是指在时间状语从句和条件状语从句中，如果主句是一般将来时，从句用一般现在时替代一般将来时。
常见的有以下四种情况:一、条件状语从句的主句是一般将来时，那么从句常常用一般现在时如: When I grow up, I’ll be a nurse and look after patients我长大后要当一名护士，照顾病人二、如果主句是祈使句，那么从句通常要用一般现在时如:Don’t laugh at me when I make a mistake.我犯错误的时候不要笑话我。
三、如果主句是含有情态动词的一般现在时，根据需要从句多用一般现在时如:You should be quiet when you are in the readingroom在阅览室时应保持安静四. 如果if的条件状语从句遇到变换间接和直接时 , 祈使句应用not to.... 如; She said not to close the window常见的时间状语从句的连词有:as soon1 / 9精品文档as,when,while ,as,until等主将从现说的是在含有时间状语从句和条件状语从句的主从复合句中，如果主句的时态是一般将来时，那么从句要用一般现在时。
例如:I will tell him about it when he comes.If it is fine tomorrow, we will go outing.如果主句的时态是过去将来时，那么从句要用一般过去时。
例如:He said that he would have another try if he had the chance.I knew he could help me if he was free the next day.任务设计任务I. 请用正确的形式填空。
1. If I come, I ________ you.2. If it is fine, we______ for a walk.3. If it rained, they _________ at home.4. You will spoil it if you ______ careful.5. We would be very much pleased if you _____.6. Will you help me if I _____ you.7. They will get wet if it _____ .8. What a pity I haven’t got my car. If I had,2 / 9精品文档I _________ you to the airport.9. We would answer if we _____.10. If you eat too much, you ______ ill.任务II. 请根据给的线索将下列句子补充完整。
A(eg.1. If I were trapped in alift,____________________________.2. If I had a flat tire on my wayhome,_____________________.3. If I heard a noise outside my apartment in the middle of thenight,________________________________________________.4. If someone was following me down a dark street, _________________.5. If I were short of five yuan for a tennis racket,__________________.6. If I found a wallet in the street with a lot of cash in it,__________.B., I’d put it in the bank andwatch it grow.1. _____________________________, I’d leave myhome city.3 / 9精品文档2.______________________________ , I might not speak to you again.3._______________________________, I’d be verymiserable.4. _______________________________, I’d befrightened.5._______________________________, I’d beextremely happy.任务III. 综合题:请根据上下文完成对话。
1. A: What are you doing this evening?B: I’m not sure. If there _____ anything good on TV. I think I_______ a detective story. Or maybe I______ to bed early.2. A: What time will Kate be home?B: If I ________ I ________ you. But unfortunately, she didn’t say a word with me because weargued yesterday.A: Well, if she _____ home before 10:00, please ask her to call me.3. A: I’m so stressed out.B: It’s none of my business, but if I ________you,4 / 9精品文档I _______ some time off.4. A: I’m afraid your flight has been delayed due to bad weather.B: Oh no! When will it take off?A: We don’t have a ny idea yet. If it_________ snowing this evening, then your flight _____________some time tonight.A: What are the chances that will happen?B: It’s too early to tell. I ________ you know if I ______ any news. 参考答案及分析重点2任务I1. will see,. will go . would stay4. are not5. came6. need. rains8. would take9. could 10. will get任务II. A.I would call up the police.2.I would run to the repairing station.3.I wouldn’t sleep at all.4.I would run the fastest.5.I would borrow it from my parents.5 / 9精品文档6.I would give it to the police.B. 1. If I did something wrong2. If you said something bad about me3. If I had little pocket money4. If I heard a strange noise at night5. If I got good grades in the mid-term test,任务III.1(isn’t, wi ll read, will go2. knew, would, gets3. were, would take. stopped, would, depart, will let, hear一般现在时主将从现练习题1. If you want to learn English well, you must use it as ___ as possible.A. oftenB. longC. manyD. soon2. ---What will Bill do if he ____in the test?---He will try again.A. failB. failsC. will failD. is failing. Please tell her the news when she_____.OK, I will.A. comesB. will come.C. comeD. would come. The students will plant trees if it ___ tomorrow.A. didn’t rainB. hasn’t rainedC. won’t rain6 / 9精品文档D. doesn’t rain. We__ home if there is no bus.---Oh, what a pity!A. will walkB. have walkedC. walkedD. walk. If it _____ tomorrow, I’ll go by car.A. rainB. will rainC. rainsD. would rain. If Mary _______ next Sunday, we will go boating together.A. will comeB. comesC. shall comeD. should come8. --- Don’t forget to ask him to write to me.--- I won’t. As soon as he _______, I’ll askhim to write to you.A. will comeB. cameC. comesD. is coming9. If he _______harder, he will catch up with us soon.A. studyB. studiesC. will studyD. studied10. Frank _______ to see his grandma if he _______ free tomorrow.A. will come; will beB. comes; isC. will come; isD. comes; will be11. –When will you tell him the good news?--I will tell him about it as soon as he _______7 / 9精品文档back.A. comesB. cameC. will comeD. is comingThe wet weather will continue tomorrow，when acold front ______to arrive.A.is expectedexpectedIf you plant watermelon seeds in the spring,you_______fresh watermelon in the fall.A(eatB(would eat C(have eaten D(will beeating表示对未来的想象。
