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2025届全国高考分科模拟调研卷·(四)4 英语试卷答案

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B.Because the scientist couldn't swim.

D
Scientists have already established from multiple studies that Mars contains large amounts of water. Most of the water exists in the form of ice. Chinese researchers say they have built an artificial intelligence(AI) robot that can use materials found on Mars to produce catalysts(催化剂)to break down water and release oxygen. It could be another way for space travelers in the future to make much-needed oxygen on Mars.
Experiments were carried out on meteorite s that either came from Mars or contained materials similar to the Martian surface. The “robot chemist” first used an acid and chemical mixture to separate and examine materials contained in the meteorites. It identified several different metallic elements and then worked to identify different molecules(分子) that could be produced from meteorite materials. The system found more than 3.7 million possible molecule combinations. The robot used that data to predict which catalysts would be able to split water molecules to produce oxygen. The catalyst chosen as the best fit was able to operate at minus 37 degrees Celsius. This temperature is similar to current conditions on Mars.
The study’s lead writer, Jun Jiang, said that as a boy, he often dreamed of being able to one day travel in space. “So when we finally saw that the catalysts made by the robot could actually produce oxygen by splitting water molecules. I felt like my dream was coming true. I even started to imagine that I, myself, will live on Mars in the future.”
A report explaining the study’s results notes Jiang suggests that for every square meter of Martian material, his group’s system could produce nearly 60 grams of oxygen per hour. The researchers say this level of production could remove the need for future astronaut s to transport oxygen from Earth. “The robot can work continuously for years.” Jiang said.
Jiang said, “It could also be used to produce other useful catalysts on Mars. This could include processes for making substances to support the growth of plants that could be used to produce food for astronauts. Different chemicals can be made by this robot. Mars might also not be the only place where it could find other used, suggesting the moon as another possibility.”
32. What do Chinese scientists use Al robots to do in the research

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