初中主将从现讲解及练习

1、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。,什么是主将从现？,if :If you ask him, he will help you.,引导条件状语从句 的词有哪些？,unless :Ill go there tomorrow unless it rains.,when , while , before , after , untill , till , since , as soon as ,引导时间状语从句 的词有哪些？,1.主将从现 2.主祈从现 3.主情从现,主将从现有哪些内容？,主句是一般将来时，从句用一般现在时。

2、 When I grow up, Ill be a doctor. If you go to the party, you will be happy.,1.主将从现,主句是祈使句，从句用一般现在时。 Dont laugh at me when I make a mistake.,2.主祈从现,主句中含有情态动词，从句用一般现在时。 You should be quiet when you are in the reading room.,3.主情从现,Exercise,1. If I come, I _ ( see ) you. 2. If it is fine, we_( go ) for

3、 a walk. 3. If it rains, they _ ( stay ) at home. 4. You will spoil it if you _ ( not be ) careful.,will see,will go,will stay,arent,5. We will 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. We will answer if we _( can ). 9.

4、If you eat too much, you _( get ) ill.,come,need,rains,can,will get,( ) 10. -What will Bill do if he _in the test? -He will try again. fail B. fails C. will fail D. is failing ( ) 11. Please tell her the news when she_. OK, I will. A. comes B. will come. C. come D. would come,B,A,( ) 12. The student

5、s will plant trees if it _ tomorrow.A. didnt rain B. hasnt rained C. wont rain D. doesnt rain ( ) 13. We_ home if there is no bus. -Oh, what a pity! will walk B. have walked C. walked D. walk,D,A,( ) 14 .If it _ tomorrow, Ill go by car.A. rain B. will rain C. rains D. would rain ( ) 15.If Mary_next

6、Sunday, we will go boating together.A. will come B. comes C. shall come D. shouldcome,C,B,( ) 16. - 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,C,( )17. - 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 ( )18. If he _harder, he will catch up with us soon. A. study B. studies C. will study D. studied,B,B,( )19. Frank _to see his