题目

Scientists have discovered a new and renewable source of water on the moon for future explorers in lunar samples from a Chinese mission.Water was stored in tiny glass beads (珠子) in the lunar dirt where meteorite (陨石) impacts occur. These shiny, multicolored glass beads were in samples returned from the moon by China in 2020. The beads range in size from the width of one hair to several hairs; the water content was just a very small part of that, according to Hui HeJiu of Nanjing University, who took part in the study.Since there are billions if not trillions of these impact beads, that could amount to substantial amounts of water, but mining it would be tough, according to the team. "Yes, it will require lots and lots of glass beads. There are lots and lots of beads on the moon," said Hui in an email."These beads could continually yield water thanks to the constant bombardment by hydrogen in the solar wind. The findings are based on 32 glass beads randomly selected from lunar dirt returned from the Chang'e 5 moon mission. Therefore, more samples will be studied," said Hui.These impact beads are everywhere, the result of the cooling of melted material pushed out by incoming space rocks. Water could be got by heating the beads, possibly by future robotic missions. "More studies are needed to determine whether this would be feasible and, if so, whether the water would be safe to drink. This shows water can be recharged on the moon's surface…a new water reservoir on the moon," said Hui.Previous studies found water in glass beads formed by lunar volcanic activities, based on samples returned by the Apollo moonwalkers more than a half-century ago. These, too, could provide water not only for use by future crews, but for rocket fuel. （1） Why is it tough to collect water from the glass beads on the moon? A . The temperature of the beads is high. B . The beads are extremely tough to break. C . The beads are so tiny that they are invisible. D . The beads contain only a tiny amount of water. （2） Why are glass beads constantly producing water? A . Because of the continuous hydrogen from the solar wind. B . Because of the huge number of glass beads on the moon. C . Because of the influence of meteorite. D . Because of glass beads getting hot. （3） What does Hui intend to express in paragraph 5? A . Researchers must conduct further investigations about water on the moon. B . The moon's water resources should be used to create electrical energy. C . The water on the moon could be accessible to explorers someday. D . The moon's water is collected in a reservoir. （4） Which title fits the passage best? A . Scientists Carried out an Investigation about Water On The Moon B . China Achieved Lunar Sample Collection Successfully C . Glass Beads Could Serve as Water Storage Containers D . Scientists Has Found Water in Lunar Glass Beads 答案： D A C D

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