内容正文:
B3U4 Space Exploration
Workbook——Homes on Mars?
Reading and Writing
1. Lead in.
2. Read paragraph 2 and complete the table below.
Meaning of
terraforming
making a planet more like ______
Reasons
to make sure people can _____________
Ways
Benefits
3. Read paragraph 3 and fill in the blanks.
Another _______:
The ________ of making it to Mars
The ______ and _____________ of humans when on Mars
4. Read paragraph 4 and fill in the blanks.
Three numbers:________________________
The conclusion of when humans can be on Mars:_____________________________________
5. Thinking
What’s your attitude? Is it a good idea for some people to move to Mars? Why or why not?
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6. Writing and sharing
Why did Stepen Hawking believe humans must move into space to survive?
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