五、(2025·淮安市金湖月考)首字母填空。
Have you ever thought of living on Mars? Our Earth is becoming more and more
c 1. And at the same time there’s terrible
p 2 here. I
f we move to Mars, things will probably change. However, it may be
d 3 for people to have a conversation there, because sound doesn’t travel very
f 4 on Mars. The low pressure (气压)
makes it so. For example, a s
5 by a human scream on the Earth can travel a little over a kilometre. But on Mars, the sound from that same scream will only move 15 metres at m
6. Besides,
the atmosphere (大气) on Mars is also much t
7 than that on the Earth. On the Earth, our atmosphere is about 3 km t
8, whil
e it is very thin on Mars. Also the Earth has an e
9 highe
r temperature than Mars. The temperature on Mars is -87°C to -5°C, so, are you r
10 to go to Mars?
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