[     ]

A. thousand of
B. thousands of
C. a thousand

     The moon travels around the earth. The moon does this because gravity pulls it. Gravity is the pulling
action of large objects such as planets and stars.
     Most nights, the moon is the brightest thing in the sky. This is because it reflects light from the sun.
It's hot during the day on the moon. When the sun is overhead, the temperature is 243℃. At night, the
temperature drops. The temperature at night maybe -163℃, A sunny day on the moon could kill you. But
then, so could the night.
     What we see of the moon changes from night to night. The shapes the moon appears to have are the
phases (阶段) of the moon. The picture on the left shows the different phases of the moon.
      1. New Moon - You can't see the moon even though no clouds cover it.
      2&8. Crescent Moon - You can see less than half of the moon.
      3&7. Half Moon - You can see half of the moon.
      4&6. Gibbous Moon - You can see more than half of the moon.
      5. Full Moon - You can see the whole moon.

1. This passage mainly tells us about _____.

A. the sun
B. the moon
C. gravity

2. When the sun is overhead, the temperature on the moon is _______.

A. as high as on the earth
B. much higher than
C. lower than on the earth

3. Picture ______ shows us Gibbous Moon.

4. On Mid -autumn Day, we can see the moon at the place of _____ in the picture.

A. No. 1
B. No. 3
C. No. 5

5. Which of the following statements is Not True?

A. The moon is changing its own shapes all the time.
B. The moon travels around the earth because gravity polls it.
C. If there is no sunlight at all, we can't see different phases of the moon.