初中英语主将从现练习.ppt

主将从现主将从现主将从现就是指在时间状语从句和条件状语从句中，如果主句主将从现就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。是一般将来时，从句用一般现在时替代一般将来时。常见的有以下三种情况：常见的有以下三种情况：一、（标准模式）时间状语从句或条件状语从句中，如果主句是一般将来一、（标准模式）时间状语从句或条件状语从句中，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。时，从句用一般现在时替代一般将来时。. If it rains tomorrow, Ill go by car.When I grow up, Ill become a doctor and look after patients.二、如果主句是祈使句，从句通常用一般现在时表示一般将来时。二、如果主句是祈使句，从句通常用一般现在时表示一般将来时。Dont laugh at me, if I make a mistake. Please tell her the news when she comes. -OK, I will三、如果主句是含有情态动词的一般现在时，从句用一般现在时替代一般三、如果主句是含有情态动词的一般现在时，从句用一般现在时替代一般将来时将来时You should keep quiet, when you come into the reading room.as soon as ,while ,when , until ,unless, if 等 ( ) 1. -What will Bill do if he _in the test? -He will try again. A. fail B. fails C. will fail D. is failing ( ) 2. Please tell her the news when she_. OK, I will. A. comes B. will come. C. come D. would come( ) 3. The students will plant trees if it _ tomorrow. A. didnt rain B. hasnt rained C. wont rain D. doesnt rain( ) 4. We_ home if there is no bus. -Oh, what a pity! A. will walk B. have walked C. walked D. walkADAB( )8. - Can I go to Beijing for my holiday, Dad? - You can when you _ a bit older. A. will get B. get C. are getting D. got( )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 comingBBCA( ) 5 .If it _ tomorrow, Ill go by car. A. rain B. will rain C. rains D. would rain( ) 6.If Mary _ next Sunday, we will go boating together. A. will come B. comes C. shall come D. should come ( ) 7. - 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 CBC