9B_Unit4-reading课件.ppt

1、9B Unit 4,Reading,Read the article and find out the keyword of each paragraph.,Crowded, polluted (population , pollution) Transport Food, water and oxygen Gravity Home School opinion,Fast Reading,Para1,more and more polluted,more and more crowded,the rapid increase in population,Why?,Howdeal with?,H

2、ope for?,Introduction,The color of Mars:_,red,Mars,the solar system 太阳系,Its between Earth and Jupiter in our solar system.,Earth,Jupiter,Mars,one-half the diameter (直径) of Earth,The size of Mars,two moons:,Phobos and Deimos 火卫1和火卫2,the surface of Mars,The surface of Mars is a little like the surface

3、 of Earth.,The lowest temperature will be -133 (degrees centigrade) and the highest will be 27 ,It may be difficult to imagine, people will live on the planet Mars.,by the year 2100,Fast Reading,Para2,At present, spacecraft,too slow to carry large numbers of passengers to Mars,How long?,By the year

4、2100,spacecraft,How long?,How make it?,travel at half the speed of light,Fast Reading,Para 3-4,Read Para. 3-4 and do some T or F exercises,( ) 1. Humans need food, water and oxygen to survive. ( ) 2. On Mars, plants could be grown and people could have enough oxygen and water . ( ) 3. Mars has three

5、s times the gravity of Earth. ( ) 4. The boots will be special for people on Mars in order not to float off into space,T F F T,three-eighths of,Fast Reading,Para 5-6,Part 3 (Para. 5-6) Advantages of life on Mars,1. People will have _ space. 2. _ will do most of our work. 3. Well have more time to _.

6、 4. Students will study in _ schools.,more,Robots,relax,online,Read and fill in the blanks,connected to an interplanetary network,Detailed Reading,Page 55, Finish B3,crowded planet,spacecraft,speed boots,space houses,robot on Mars,online teacher,f,c,d,b,e,a,P54, B2- Help Daniel find out the links to

7、 the key words.,What will be changed on Mars?,Page 55, Finish B4,Advantages of living on Mars,Its not _or_. The _ is more convenient . People will wear special _ People will have _space . _ will do most of our work. Well have more time to _. Students will study in _ schools.,crowded polluted spacecr

8、aft boots . more Robots relax online,Disadvantages of living on Mars,_ will be a problem. Food would probably be in the form of _ and wouldnt be _. Space travel might be _ make people feel _.,Gravity,tasty,ill / sick,uncomfortable,pills,Difficult sentences,The journey might take only about 20 minute

9、s in spacecraft that travel at half the speed of light.用以光速一半速度飞行的太空穿梭机进行的旅程可能只要花约20分钟的时间。 分析：此句是that连接的定语从句。that引导的定语从句修饰先行词spacecraft, 从句中的动词的人称和数由先行词spacecraft决定。,Compared with life on Earth, life on Mars will be better in many ways. 与在地球上的生活相比, 火星上的生活在很多方面将会更好. compare with 意思是“ 与做比较”。在句中是过去分词短语

10、作状语, 此时with和to可通用。,Every student would have a computer at home connected to an inter-planetary network. 每个学生在家里有一台连接星际网络的电脑。 connect to 意思是“与连接”。这里的connected to 是过去分词后置作定语,修饰computer。当然我们也可以用connect to结构表示“把 和连接起来 ”。,Exercises,Task 1 -Words,Page 54, Finish B1,Exercises:,1.It _(hope) that we would ha

11、ve a better world on Mars. 2.The _(人口） of China in 21007 would be larger. 3. This kind of shoes is too _(comfortable) for me to wear. 4.The earth is a _.(行星） 5._(人类） can make robots do some work. 6.This area is badly p_. Something must be done to protect the environment. 7.Withpout gravity, we will _(漂浮） in the space.,is hoped,population,uncomfortable,planet,Humans,olluted,float,目前；现在 变得越来越拥挤 以光速的一半运行 许多 漂入太空中,Task 2 -Phrases,at present become more and more crowded travel at half the speed