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1、-仁爱九年级上册Unit4-Topic3-SectionA-课课练-第 - 2 - 页Unit4 Topic3 Section A友情提示：学习目标：1、学习含有情态动词的被动语态。2、谈论外星人以及外太空生活，学习表达可能和不可能的功能用语。 3、培养学习积极探索、热爱科学的态度。一、词汇检查，按要求写出下列短语。1wonder(形容词) 2. excite(形容词)和3search(名词)4. science(名词，科学家)：5science(形容词) 6.这周六晚上_ 7.关于太空生活_ 8. 乘飞船旅行_ 9. 生活在火星_10. 生活在太空_11. 将会有_12. 将能够(做)_ 1
2、3. 在地球_14. 我等不及了_15. 为了_16. 亲眼所见：_ 二、重点短语、句型分析与练习。1There be句型的一般将来时的两种表达方法：_或课文例句可改为：2be able to 与can的区别：be able to有各种、和的变化，而can只有时态和时态的变化。3We will be able to do anything that can be done on earth.我们可以做在地球能做的一切事情。that can be done on earth是修饰。can be done的语法现象是，含有情态动词的被动语态结构为：（本节重难点）4But I dont think
3、aliens can be found in space.但是我认为在太空中找不到外星人。当think, believe, suppose, imagine, expect等动词后接的宾语从句含有not等否定词且主语为第一人称时，该否定要前移，即否定主句的谓语动词。如I think的否定形式为，I believe的否定形式为。5. I wont believe there are aliens until I see them with my own eyes.除非亲眼所见我才相信有外星人存在。 not until意思是, 引导_状语从句，在此处主句用，从句用。四、把下列句子改为被动语态1、H
4、e can work out the problem easily . The problem _ _ _ _ by him easily . 2、 We must plant more trees to protect the environment . More trees _ _ _ _ protect the environment by us . 3、We should change clothes often to keep healthy . Clothes _ _ _ often to keep healthy . 4、 Scientists may clone humans
5、some day . Humans _ _ _ by scientists some day . 5、 People must not throw rubbish into the river . Rubbish _ _ _ _ the river by people . 五、巩固练习题：( ) 1. More man-made satellites _ into space . A. must sent up B. can sent up C. must be sent up D. may be send up ( ) 2. - _ an elephant show in the zoo t
6、his Sunday . Would you like to go with me ? - Id love to . A. There is going to have B. There will beC. There is going to hold D. There will have ( ) 3. _ the spaceship , people _ fly to the moon. A. No ; couldnt B. Havent ; cant C. Without ; wont able to D. Without ; wont be able to ( ) 4. - How ha
7、rd those astronauts work !- Yes . _ finish the flight task , they must keep on _every day . A. In order to ; exercising B. So that ; exercising C. In order that ; exercises D. Because of ; exercising ( )5. I didnt have a clear understanding of the science book _ I did an experiment for myself . A. s
8、ince B. until C. unless D. after ( ) 6. I dont think it will rain tomorrow , _ ? A. do I B. dont I C. will it D. wont it ( ) 7. I _ go to Beijing with my parents in two weeks . A. can B. am able to C. will can D. will be able to ( )8. On Christmas Day , the children wake up early and cant wait _ their presents in the boxes . A. opening B. for opening C. to open D. open