“The amount of water on the Moon was way too low for life to have ever have possibly have existed there,” he said.
Most scientists believe the Moon was formed when a large object struck Earth, breaking off a chunk (a vast piece) that has since orbited Earth.
On Earth, goes one theory, water was released as steam from molten basalts (玄武岩) over time, eventually forming bodies of water.
“An understanding of whether the Moon was dry or wet will help us understand how water appeared on Earth,” Dr. Sharp said.
1. A new study indicates that on the moon.
A. there is plenty of water
B. water is unlikely to exist
C. water existed in the past
D. there is a little water now
2. The author would like to tell us through the sixth paragraph.
A. why there is no water on the Moon
B. how the Moon was formed
C. when the Earth struck the Moon
D. where the Moon orbited
3. What does the underlined word “this” stand for in the second paragraph?
A. Neither hydrogen nor water on the Moon.
B. Too much chlorine isotopes on the Moon.
C. Not being much hydrogen, no water on the Moon.
D. More chlorine exists on the Moon than Earth.
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