高二英語Transing mars課件.ppt

1、,Transforming Mars,1,2,3,4,5,6,7,8,9,1. Mercury,2. Venus,3. Earth,4. Mars,5. Jupiter,6.Saturn,7.Uranus,8.Neptune,9. Pluto,Earth VS Mars,24.5 hours,687 earth days, 668 Martian days,no water,a lot of ice,-60C,95% carbon dioxide,20kg,228 million,Transforming Stages,Arrange the stages in right order,1,5

2、,2,4,7,8,6,3,Teachers desk,Transforming Stage 1 (AD 2030-2045),Expedition Underground buildings Experiments Look for site for future landings Check for signs of life Survive, spacesuits Low gravity, move easily,Transforming Stage 2(AD 2045-2095),Huge solar mirrors, heat ice caps Spray black, not ref

3、lect heat away Chemicals released Atmosphere thicker, retain more heat Greenhouse effect start -40C,Transforming Stage 3(AD 2095-2130),Plants introduced Carbon dioxide, convert into oxygen First clouds Sky, from pink to blue -15C,Transforming Stage 4(AD 2130-2145),towns,Warming continue Melt more ic

4、e Rivers and small oceans People migrate (move), construct towns Trees Look greener 0C,Transforming Stage 5(AD 2145-2185),More like Earth The amount of oxygen rises Inhabitants, without spacesuits 10C cities, farms, industries all over,Debate: Whether it is really worth transforming Mars and make it

5、 our colony.,1,5,2,4,7,8,6,3,Teachers desk,For,Against,ReadingDestination Mars,Underline sentences to support your idea,Requirement of debate,Clear Loud Confident Polite Impressive Logical and reasonable,Mars is a goal,worthy of,only the greatest efforts,that we can offer as a civilization.,We canno

6、t fly to Mars,“on the wings of love”,Or even fuel our rockets,with hopes and dreams.,Instead,it is by the sweat of our brow,the ache of our muscles,and the drive of our will,that we have always,blazed the trial of exploration.,And we will,continue to do so,in the future.,Homework,Find further information on Mars and solar system if you are interested http:/m