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2. New structures: Food would most probably be in the form of pills and would not be so tasty.
The gravity on Mars is only about three-eighths of that on the Earth.
Compared with life on the Earth, people would have more space.
III. Focus of the lesson and predicted area of difficulty
1. To learn about what life would be like on another planet in the future.
2. To talk about the advantages and disadvantages of living on Mars and Earth.
IV. Teaching procedures
Step 1 Pre-reading
1. Free talk
T: Our own planet earth is becoming more and more crowded and polluted , what shall we do?
S: …
T: Do you know anything about Mars?
S: …
T: Mars is the second nearest to the Earth. The surface of Mars is the most similar to the surface of Earth.
Mars might turn into another “Earth” in the future. Do you want to live on Mars?
Maybe We can build a better world on Mars in the future.
【设计意图：激活学生的背景知识，为导入火星上的生活做好铺垫。】
2. Predicting
Guessing game: according to the pictures and the descriptions of what life will be like on Mars. Then guess what they’re talking about.
T: You have wonderful imagination. Daniel wants to find out more about life in space in the future too. Look, he has found an article by a famous scientist who thinks humans could live on Mars by the next century. Do you want to read it?
【设计意图：在阅读文本前，让学生充分发挥想象力，激发学生的阅读兴趣，引导学生对文本内容进行预测和思考，读前有效的预测能使学生成为积极的阅读者。】
Step 2 While-reading
1. Task One: Watch the video carefully and get the main idea
2. Task Two: Read the article again and answer some more questions
1. How long does it take to fly to Mars at present?
2. How would people feel if they travel by spacecraft?
3. Will gravity be a big problem?
4. Who would help us do most of the work?
5. How would we study?
3. Task Three: Detailed reading