新版外研初中英语-主将从现详细讲解与练习(精品).docx

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1、精品文档，仅供学习与交流，如有侵权请联系网站删除主将从现定义：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。 引导条件状语从句的词if :If you ask him, he will help you. unless :Ill go there tomorrow unless it rains. 引导时间状语从句的词when , while , before , after , untill , till , since , as soon as ,1.主将从现主句是一般将来时，从句用一般现在时。When I grow up, Ill b

2、e a doctor.If you go to the party, you will be happy.l 2.主祈从现主句是祈使句，从句用一般现在时。 Dont laugh at me when I make a mistake.Put it in your diary before you forget. 用记事本记下免得忘了。l 3.主情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.A baby deer can stand as soon as its born. 小鹿一生下来就能

3、站着。You can get a better job if you speak a foreign language. 要是你会说一种外语，那你就会找到更好的工作。通常出现情况1. “主将从现”见于时间状语从句As soon as I get through with my work Ill join you. 我工作一做完就来找你们。Before they drive any of the buses, they will have to pass a special test. 然而在驾驶公共汽车前,他们必须通过专门测验。My mother will be very angry with

4、 me when she finds out where Ive been. 我母亲要是知道我到过那地方一定会大怒。Well pay you half up front and the other half when youve finished the job. 我们先付给你一半钱，剩下的一半等你干完了再付。2. “主将从现”见于条件状语从句If (it is) necessary I will come at 6. 如有必要，我6点钟来。If today is Wednesday, the day after tomorrow will be Friday. 今天要是星期三，后天就是星期五

5、。If you train hard, youll make a good footballer. 你要刻苦训练就能成为优秀的足球运动员。If past experience is anything to go by, the plane will be late. 过去的经验要是还靠得住的话，这飞机会晚点的3. “主将从现”见于让步状语从句Well go even if it rains. 即使下雨我们也去。Hell come even if hes i11. 他即使生病也会来。Even if he had the money, he wouldnt buy it. 他即使有钱也不会买它。H

6、ell probably say no, though its worth trying. 他很可能不同意，但不妨去试探一下【Exercise 】1. If I come, I _ ( see ) you. 2. If it is fine, we_( go ) for a walk. 3. If it rains, they _ ( stay ) at home. 4. You will spoil it if you _ ( not be ) careful. 5. We will be very much pleased if you _( come ).6. Will you help

7、 me if I _ ( need ) you. 7. They will get wet if it _ ( rain ).8. We will answer if we _( can ). 9. If you eat too much, you _( get ) ill. ( ) 10. -What will Bill do if he _in the test?-He will try again.A. fail B. fails . will fail D. is failing( ) 11. Please tell her the news when she_. OK, I will

8、.A. comes B. will come. C. come D. would come( ) 12. The students 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!A. will walk B. have walked C. walked D. walk( ) 14 .If it _ tomorrow, Ill go by car.A. r

9、ain B. will rain C. rains D. would rain( ) 15.If Mary_next Sunday, we will go boating together.A. will come B. comes C. shall come D. shouldcome( ) 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( )17. - Ca

10、n 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( )19. Frank _to see his grandma if he _ free tomorrow.A. will come; will be B. comes; is C.

11、 will come; is D. comes; will be【拓展练习】（ ）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.A. fail B. fails C. will fail D. is failing ( ) 3. Please tell her the news when she_. OK, I

12、 will. A. comes B. will come. C. come D. would come( ) 4. The students will plant trees if it _ tomorrow.A. didnt rain B. hasnt rained C. wont rain D. doesnt rain( ) 5. We_ home if there is no bus. -Oh, what a pity!A. will walk B. have walked C. walked D. walk( ) 6 . If it _ tomorrow, Ill go by car.

13、 A. rain B. will rain C. rains D. would rain( ) 7. 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 toto me. - I wont. As soon as he _, Ill ask him toto you. A. will come B. came C. comes D. is coming ( )9. - _ the y

14、oung girl _ the old man clean his room every day? - Yes, she does. A. Does; help B. Has; helped C. Did; help D. Do; helps( )10. - What does Linda often do in the evening? - She often _ her homework, but on the evening of March 12 she _ TV.A. does; watches B. is doing; watched C. does; watched D. is

15、doing; was watching( )11. Our geography teacher told us yesterday that the earth _ around the sun. A. was moving B. moved C. has moved D. moves ( )12. - Do you likesilk dress? - Yes, I do. It _ so soft and comfortable. A. is feeling B. feels C. has felt D. is felt ( )13. - Can I go to Beijing for my

16、 holiday, Dad? - You can when you _ a bit older. A. willnbsp; B.nbsp; C. are getting D. got( )14. If he _harder, he will catch up with us soon. A. study B. studies C. will study D. studied( )15. Frank _ to see his grandma if he _ free tomorrow. A. will come; will be B. comes; is C. will come; is D.

17、comes; will be( ) 16. 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( ) 17. _ me carefully, boys and girls. Can you _ me? A. Listen to; hear B. Hear; listen to C. Hear; hear D. Listen to; hear from( ) 18. It wont _ them much time to fly to Beijing from Shanghai. A. spend B. use C. take D. pay( ) 19. Do you like the music the Moonlight Sonata? -Yes, it _ really beautiful. A. feels B. sounds C. listens D. hears【精品文档】第 4 页