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策略指导
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策略指导
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策略指导
标注
send a spaceship
take several months
arrive
discover life
be to the moon
be to Mars
Lead in
Module 3 Unit 2(第一课时)
Guess: Have we found life on any other planets?
Pre-reading
Have we found life on any other planets?
No, not yet. / No, we haven’t.
While-reading
P1L2: There has been life on the earth for hundreds of millions of years. However, we have not found life on any other planets yet.
There has been life on the earth for hundreds of millions of years.
However, we have not found life on any other planets yet.
… … life on the earth for ……years.
However, … …on any other planets…
What do you know about the universe:
① What is the solar system? And how does the solar
system work?
② What is the Galaxy (Milky Way)? What have the
scientists also discovered?(Is there only one galaxy?)