题目

阅读理解 Hoping to live on the moon one day? Your chances just got a tiny bit better. Researchers found that lunar pits and caves reach stable temperatures, making them potentially suitable for human life. Planetary scientists at the University of California, Los Angeles have been doing the research. Although much of the moon's surface temperatures ranges from as high as 260 degrees during the day to as low as 280 degrees below zero at night, the moon has pits and caves where temperatures stay at roughly 63 degrees Fahrenheit, making human habitation a possibility, according to their new research. For perspective, a day or night on the moon equals a little over two weeks on the earth—making long-term research and habitation difficult with such extremely hot and cold temperatures. Researchers say these stable spots could transform the future of lunar exploration and long-term habitation. The shadowed areas of these pits could also offer protection from harmful elements, such as solar radiation, universal rays and micrometeorites (微小陨石). About 16 of the over 200 discovered pits most likely come from collapsed lava tubes—tunnels that form from cooled lava or crust, according to Tyler Horvath, a UCLA doctoral student and head of the research. The researchers think overhangs inside of these lunar pits, which were initially discovered in 2009, could be the reason for the stable temperature. The research team also includes UCLA professor of planetary science David Paige and Paul Hayne at the University of Colorado Boulder. "Humans evolved living in caves, and to caves we might return when we live on the moon," said Paige in a UCLA press release. There are still plenty of other challenges to establishing any sort of long-term human residence on the moon—including growing food and providing enough oxygen. The researchers made clear that NASA has no immediate plans to establish a base camp or habitations there. （1） What did the researchers find? A . Humans like the life on the moon. B . People lived in lunar pits and caves. C . Steady temperature exists somewhere on the moon. D . Temperatures in caves and pits vary a lot on the moon. （2） What do the shadowed areas act as protection against? A . Solar heat. B . Harmful liquids. C . Universal gases. D . Micrometeorites. （3） What does the underlined word "evolved" probably mean in paragraph 5? A . Appeared. B . Developed. C . Hunted. D . Escaped. （4） Why does NASA not establish any habitation there at present? A . It has no such plans. B . Food there tastes bad. C . Many challenges exist. D . There is no oxygen. 答案： C D B C

查看本题答案和解析