1、.。 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 _____ ( nee
2、d ) you. 7. They will get wet if it _____ ( rain ). 8. What a pity I haven’t got my car. If I had, I _主将从现 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
3、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 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
4、 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
5、 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 ________ ( 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. W
6、e 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 haven’t got my car. If I had, I _________( take ) you to the airport. 9. We would answer if we _____( can ). 10. If you eat to
7、o much, you ______( get ) ill.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. long C. many D. soon （ ）2. ---What will Bill do if he ____in the test? ---He will try again
