主将从现练习题及答案.doc

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, Ill 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：Dont 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 reading room 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 soon 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 havent got my car. If I had, 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。 Aeg. 1. If I were trapped in a lift,_. 2. If I had a flat tire on my way home,_. 3. If I heard a noise outside my apartment in the middle of the night, _. 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., Id put it in the bank andwatch it grow. 1. _, Id leave my home city. 2._ , I might not speak to you again. 3._, Id be very miserable. 4. _, Id be frightened. 5._, Id be extremely 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: Im 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 didnt say a word with me because we argued yesterday. A: Well, if she _ home before 10:00, please ask her to call me. 3. A: Im so stressed out. B: Its none of my business, but if I _you, I _ some time off. 4. A: Im afraid your flight has been delayed due to bad weather. B: Oh no! When will it take off? A: We dont have any idea yet. If it_ snowing this evening, then your flight _ some time tonight. A: What are the chances that will happen? B: Its too early to tell. I _ you know if I _ any news. 参考答案及分析 重点2 任务I 1. will see,. will go . would stay4. are not5. came 6. 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 wouldnt sleep at all. 4.I would run the fastest. 5.I would borrow it from my parents. 6.I would give it to the police. B. 1. If I did something wrong 2. If you said something bad about me 3. If I had little pocket money 4. If I heard a strange noise at night 5. If I got good grades in the mid-term test, 任务III. 1isnt, will read, will go2. knew, would, gets 3. 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. often B. longC. manyD. soon 2. -What will Bill do if he _in the test?-He will try again. A. failB. fails C. will fail D. is failing . Please tell her the news when she_.OK, I will. A. comes B. will come. C. come D. would come . The students will plant trees if it _ tomorrow. A. didnt rainB. hasnt rained C. wont rain D. doesnt rain . We_ home if there is no bus.-Oh, what a pity! A. will walkB. have walked C. walked D. walk . If it _ tomorrow, Ill go by car. A. rainB. will rain C. rainsD. would rain . If Mary _ next Sunday, we will go boating together. A. will come B. comes C. shall come D. should come 8. - Dont forget to ask him to write to me. - I wont. As soon as he _, Ill ask him to write to you. A. will come B. came C. comes D. is coming 9. If he _harder, he will catch up with us soon. A. study B. studies C. will study D. studied 10. Frank _ to see his grandma if he _ free tomorrow. A. will come; will be B. comes; is C. will come; is D. comes; will be 11. When will you tell him the good news? -I will tell him about it as soon as he _ back. A. comes B. came C. will come D. is coming The wet weather will continue tomorrow，when a cold front _to arrive. A.is expected expected If you plant watermelon seeds in the spring, you_fresh watermelon in the fall. AeatBwould eat Chave eaten Dwill be eating 表示对未来的想象。不是幻想而是预计要发生的事情。 主将从现 If their marketing plans succeed，they _ their sales by0 percent. A. will increase C.have increased Do you have any problems if you _ this job? Well，Im thinking about the salary. A. offerB. will offer C. are offered D. will be offered B. have been increasing B.is expecting C. expects D. will be D.would be increasing No decision _ about any future appointment until all the candidates have been interviewed. A. will be madeB. is made C. is being made D. had been made 3) I think it is necessary for my 19-year-old son to have his own mobile phone，for I sometimes want to make sure if he_ home for dinner. A. come B. comes C. has come D. will come ). Please tell her the news when she_.OK, I es B. will come. C. come D. would come A.