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1.Match the words with the pictures.
A. galaxy
B. planet
C. solar system
D. star
E. universe
2.Do you know the words and expressions in the box? Put them in order: small — large.
galaxy planet solar system star universe
planet— star —solar system — galaxy— universe
Step 2 While-reading
Fast reading
一．Read the passage and choose the best title for it.
1. Anyone out there?
2. Life on Earth
3. The sun and other stars
4. The stars at night
二．Questions:
1. How many planets are there in the solar system?
2.Have we found life on other planets yet?
Careful reading
Listen and read the passage
Practice reading alone
Try to retell the passage according to the mind map.
Deep reading:
Question:
Why can’t people and things grow on other planets?
Step 3 Post-reading
1.Complete the passage with the words and expression in the box.
communicate environment none solar system universe
Is there life on other planets? There are seven other planets in our (1)______________, but (2) ______ of them has a(n) (3) ______________ like that of the earth. Why has no one from other planets tried to (4)_______________ with us? It is true that scientists have not discovered life on other planets in the (5)__________ yet, but some scientists believe that they will find it some day.