高二英语transformingMars课件.ppt

1、True or False Questions:1.There are 687 days in a Martian year and 24 1/2 days in a Martian day.2.There is some water on Mars.3.The average temperature on Mars is 15.4.The main gases in atmosphere on Mars is oxygen.5.The gravity on Mars is the same as the one on Earth.6.The distance from Mars to the

2、 sun is 228 million kilometres.Facts about MarsFacts about Mars1.There are 687 days in a Martian year and 24 1/2 days in a Martian day.2.There is some water on Mars.3.The average temperature on Mars is 15.There is no water,but there is a lot of ice.The average temperature is-60 Facts about Mars 4.Th

3、e main gases in atmosphere on Mars is oxygen.5.The gravity on Mars is the same as the one on Earth.6.The distance from Mars to the sun is 228 million kilometres.The gravity on Mars is 1/3 of Earths.95 percent of the atmosphere is carbon dioxide.The Transforming of MarsStagesTimeSuggestionsResultsSta

4、ge 1Stage 2Stage 3Stage 4Stage 5The Transforming of MarsStage 1TimeSuggestionsConstruct _,Conduct _,Look for_,Check for_.ResultsThey can survive_ The temperature is _AD 2030-2045 underground buildings only as long as they wear spacesuits.experimentsgood sites signs of life-60The Transforming of Mars

5、Stage 2TimeSuggestionsPut _in orbit round Mars,Release_ ResultsThe atmosphere _,and retains _.Ice _.The temperature _.AD 2045-2095huge solar mirrorschemicals into the airbecomes thickermore of the suns heatmeltsrises to-40The Transforming of MarsStage 3TimeSuggestionsIntroduce_ResultsCarbon dioxide_

6、,_ appears,The temperature _AD 2095-2130plants from Earth can be converted into oxygenClouds and blue skygoes up to-15The Transforming of MarsStage 4TimeSuggestionsMake_Construct _Plant _ResultsMars_ The temperature is_ AD 2130-2145rivers and small oceanstownsforests of treesis looking greener0The T

7、ransforming of MarsStage 5TimeSuggestionsBuild _ResultsThe amount of oxygen_Air becomes_The inhabitants can_ The temperature _AD 2145-2185cities,farms and industriesrisesbreathable go out without spacesuitsreaches 10Question PatternsIs it necessary/important/to?Why?How long will it take to How do th

8、e scientists intend toin Stage What is the main purpose of the actions in Stage Why do the scientists.in Stage?What do you think of SummarySummaryFill in the blanks according to the five stages As we all know,Mars is the planet most similar to Earth.People have dreamed of living there for centuries.

9、Therefore,scientists spare no effort to _Mars.They use the greenhouse effect to raise its and obtain enough _.They also introduce more plants to release _,and the _is getting close to Earth as well.After the success transformation,people can live there happily and comfortably.transformtemperaturewateroxygengravity1.Read the text fluently and recite paragraphs 1&2 as possible as you can.2.Finish the exercises on page 81.