初中英語主將從現練習題44697.doc

主將從現主將從現是指在時間狀語從句和條件狀語從句中，如果主句是一般將來時，從句用一般現在時替代一般將來時。常見的有以下四種情況：一、條件狀語從句的主句是一般將來時，那么從句常常用一般現在時如： When I grow up, Ill be a nurse and look after patients我長大后要當一名護士，照顧病人二、如果主句是祈使句，那么從句通常要用一般現在時如：Dont laugh at me when I make a mistake.我犯錯誤的時候不要笑話我。三、如果主句是含有情態(tài)動詞的一般現在時，根據需要從句多用一般現在時如：You should be quiet when you are in the reading room在閱覽室時應保持安靜四. 如果if的條件狀語從句遇到變換間接和直接時 , 祈使句應用notto.如; She said not to close the window常見的時間狀語從句的連詞有：as soon as,when,while ,as,until等主將從現說的是在含有時間狀語從句和條件狀語從句的主從復合句中，如果主句的時態(tài)是一般將來時，那么從句要用一般現在時。例如：I will tell him about it when he comes.If it is fine tomorrow, we will go outing.如果主句的時態(tài)是過去將來時，那么從句要用一般過去時。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. 任務設計任務I. 請用正確的形式填空。1. If I come, I _ ( see ) you.2. If it is fine, we_( go ) for a walk.3. If it rained, they _ ( stay ) at home.4. You will spoil it if you _ ( not be ) careful.5. We would be very much pleased if you _( come ).6. Will you help me if I _ ( need ) you.7. They will get wet if it _ ( rain ).8. What a pity I havent got my car. If I had, I _( take ) you to the airport.9. We would answer if we _( can ).10. If you eat too much, you _( get ) ill.任務II. 請根據給的線索將下列句子補充完整。Aeg. If I were poor, I would do my shopping in cheaper stores.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. eg. If I won one million dollars in the lottery , Id put it in the bank and watch 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.任務III. 綜合題：請根據上下文完成對話。1. A: What are you doing this evening?B: Im not sure. If there _ ( not be ) anything good on TV. I think I _(read) a detective story. Or maybe I_ ( go ) to bed early.2. A: What time will Kate be home? B: If I _(know) I _(tell) you. But unfortunately, she didnt say a word with me because we argued yesterday. A: Well, if she _(get) 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 _( be )you, I _( take ) 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_ ( stop ) snowing this evening, then your flight _ (depart) some time tonight.A: What are the chances that will happen?B: Its too early to tell. I _( let ) you know if I _( hear ) any news.參考答案及分析重點2任務I1. will see, 2. will go 3. would stay 4. are not 5. came6. need 7. rains 8. would take 9. could 10. will get任務II. A.1. 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 wrong2. If you said something bad about me3. If I had little pocket money4. If I heard a strange noise at