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1、9B Unit 4 Life on Mars,Revision,思维导图,1._2._3._4._5_ 6._7._8._9._10._,Advantages of living on Mars,It is not so crowed. People would have much more (1) . There would be no air (2) on Mars. We would study at (3) schools wit “e-teachers”. Robots would do most of our work so that we would have more time
2、 to relax. Travelling in space would be (4) .,We dont know if it is really safe. We might get (5) from living there. Food would be in the form of (6) and would not be so tasty. The gravity on Mars is only about (7) of that on Earth. There might be dangerous aliens.,Disadvantages of living on Mars,Ma
3、rs (9) are electronic and are stored in the Planet Mars Bank. A very poplar form of entertainment is online games. There are also many online theatres. There are two (10) to visit. There are lots of shopping malls on Mars. They sell space clothes and food.,A guide to (8) on Mars,space pollution onli
4、ne fun ill pills three-eighths living dollars moons,1.氧气罐 2.干粮 3.电源包 4.睡袋 5.太空头盔 6.特殊的靴子 7.火星上重力小。,power pack,air tank,dried food,sleeping bag,space helmet,special boots,Theres less gravity on Mars.,重点词组和短语,8.重新 9.以的速度 10.以的形式 11.漂浮到太空中 12.与比较 13.在一些方面 14.与连接,at the speed of,all over again,in the fo
5、rm of,float off into space,compare with / to,In some ways,connect to,15.也，又 16.在岁时 17.意见一致 18.记英语日记,as well as,at the age of,be in agreement,keep an English diary,19. 开展，执行,22. 害怕见到外星人,20. 在太空中旅游,23. 离地球如此遥远,21. 对 有伤害,carry out,travel in space,do harm to /be harmful to,be afraid of seeing aliens,so
6、far away from the Earth,26. 毕竟,25. 一种不同的生活,24. 生活在火星上的缺点,disadvantages of living on Mars,a different kind of life,after all,一、用介词短语把状语从句换成简单句,when 所引导的时间状语从句 1. She started to learn drawing when she was seven. She started to learn drawing_ . 2.Neil Armstrong received his student pilot s licence when
7、 he was 16. Neil Armstrong received his student pilot s licence _,at the age of seven,at the age of 16,because 引导的原因状语从句,3.He could not go to the party because he had too much homework. He could not go to the party because of too much homework . 4.People might float in space because the gravity is l
8、ow. People might float in space _ _.,because of,the low gravity,if 所引导的条件状语从句,5.He could not solve this problem if he has no help. He could not solve this problem _ . 6.Humans cannot survive if there is no food, water or oxygen. Humans cannot survive _ .,without help,without food, water or oxygen,If
9、引导的条件状语从句可与下列结构进行同意转换： 1.可用without 或with 来转换条件状语从句。 If there is no water , fish will die. = Fish will die without water. 2.可与“祈使句+ and/ or +陈述句（一般将来时结构）”这一句型转换。其中，在句意上and表示顺承， or表示转折，意为“否则”。 If you work hard , youll pass the exam easily. =Work hard , and youll pass the exam easily. =Work hard , or y
10、ou wont pass the exam easily.,用介词短语把状语从句换成简单句,1.“when+从句”转换成_ 2.“because +从句”转换成 _ 3.“if 的否定句”转换成 _,at the age of ,because of ,without,4. so that引导的目的状语从句可用“in order to”或“so as to”转换为简单句。,She decided to buy a camera online so that she could receive it soon.,She decided to buy a camera online in orde
11、r to/ so as to receive it soon.,5. sothat引导的结果状语从句的可用“enough to do” 结构变成简单句。,This hall is so large that it can hold 2000 people.,This hall is large enough to hold 2000 people.,二、用介词把宾语从句换成简单句,1. I am sure that the concert tickets will be expensive. _ _ . 2.Are they sure that space travel will be ver
12、y fast? _ _ ?,I am sure about the high price for the concert tickets,Are they sure about the fast speed of space travel,3.The smell of the pills reminds them that food on the earth is tasty. _ 4.The photos remind me that I travelled to the UK five years ago. _,The smell of the pills reminds them of
13、the tasty food on the earth,The photos remind me of my trip to the UK five years ago,5.Are you certain that Tom is satisfied with the plan ? _ _ ?,Are you certain about Tom s satisfaction with the plan,be sure that = be sure about / of,remind sb that = remind sb of sth,be certain that = be certain a
14、bout,1.Are you aware how far Mars is away from the sun ? Are you aware_ _ (distance)? 2.Are scientists in agreement that living on Mars would be possible for humans in the future? Do scientists agree _ _ (possibility)?,be aware of 知道 意识到,agree with,of the distance between Mars,and the sun,be in agreement意见一致,with the possibility of living,on Mars for humans in the future,3.Do they think that the low gravity on
