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planet 行星
Put the words and expressions in the box in order: small – large.
the solar system, the earth, ,the universe,galaxy,the sun
3
2
1
3
4
5
1. the earth 2.the sun 3. the solar system
4. galaxy5. the universe
Shenzhou-9 is a manned spaceship.
Why scientists sent spaceships into space?
Anyone out there?
Life on the earth
The sun and other stars
The stars at night
While reading: Fast reading:choose the best title for the passage.
The Earth is a star.
The Sun is a star.
There is more than one galaxy in the universe.
4. The light from stars in other galaxies has travelled for a long time to reach us.
5. Scientists have received many messages from space.
6. Spaceship have visited most of the universe.
Check the true sentences.
√
√
√
Careful reading: Read the passage again and answer the following questions.
1. Have we found any life on other planets?