任务二 阅读理解
Recently, a great scientific discovery amazed the world. Chinese scientists have already found a new method to produce water on the moon, which could change how we
think about living on the moon in the future! They wrote
about their discovery in a science magazine called The Innovation. Their discovery shows that by using lunar soil(月壤), scientists can create a lot of water on the moon.

In the past, missions to the moon showed that there might be ice at the moon's north and south poles(极). However, there isn't much water in lunar soil—only a little bit, like 0.0001 per cent to 0.02 per cent, which makes it hard to find and use water there. So it's difficult for people to expect to live on the moon.
The researchers, however, found something exciting, after studying the rocks and soil from the moon brought back by the Chang'e-5 spacecraft. One of the exciting things they discovered is that lunar soil melts(融化) when it reaches over 1,000℃. When it begins to melt, it produces water vapour(蒸气). They learnt that just 100 g of lunar soil can give us 5.1 g to 7.6 g of water. So, if we had one ton of lunar soil, we could get between 51 kg and 76 kg of water. That's enough to give drinking water to 50 people for one day!
All in all, this research opens up new possibilities for finding water on the moon. It's important for future trips to the moon and people who might live there someday. As we learn more about how to make water from lunar soil, we get closer to the dream of humans living on the moon. This discovery could help make that dream come true!
(
B
) 1. Why does the writer mention the earlier research in paragraph 2?
A. To show that it was totally wrong.
B. To compare it with the new discovery.
C. To prove that there is no running water on the moon.
D. To explain why people wanted to live on the moon before.
(
B
) 2. How much water may scientists get if they have 1,000 g of lunar soil?

(
A
) 3. What's the writer's attitude(态度) towards the dream of humans living on the moon?
A. Hopeful.
B. Worried.
C. Surprised.
D. Doubtful.
(
C
) 4. What can we infer from the text?
A. Humans are the builders of the earth.
B. Mistakes often help us find the truth.
C. Scientific discoveries are continually moving forward.
D. Future space exploration faces challenges(挑战) and chances.