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罗马战神
n. 风暴，暴(风)雨
It is much smaller than the earth. Its diameter is 53% of the earth’s.
直径
During spring and summer, the strong storms can cover the whole surface of Mars. The gravity on its surface is about 40% as strong as it is on earth.
引力，重力
1a Read and understand. Look at the pictures and predict which statements are true about Mars. Then read the passage quickly and check the answers.
_____ 1. Mars looks like a red ball.
_____ 2. The temperature on Mars is very
high.
_____ 3. Mars is much larger than the
earth.
_____ 4. Mars is too far away for us to
reach.
T
F
F
F
Listen to 1a and answer the questions.
(1) What does Mars look like?
It looks like a red and orange ball.
(2) How far is Mars from the sun?
It’s about 228 million kilometers away from the sun.
(3) What’s the temperature on Mars?
It is between -138℃and 28℃.
1a Read and understand.
1. Its diameter is 53% as wide as that of the
earth.它的直径是地球直径的53%。
2. The gravity on the surface of Mars is about
two-fifths as strong as it is on earth.火星表面