黑龙江省哈尔滨市双城区兆麟中学2022-2023学年高一下学期第六次英语周测试题

兆麟中学高一下学期第六次英语周测 出题人：高一外语组 时间：40分钟 Ⅰ.阅读理解 If Mars were the popular kid in school, Venus(金星) would be the unwelcome one sitting in the corner, largely ignored.Venus has nearly the same mass and size as Earth, but being closer to the sun, it gets nearly twice as much heat from the sun. However, instead of having a climate that is just a warmer version of Earth's, Venus's surface and atmosphere are unbearable: Clouds of sulphuric acid blanket the planet, while at ground level, it is hot enough to melt lead.Despite this, there is now a sign that Venus may harbour life. Jane Greaves at Cardiff University, UK, and her colleagues recently detected phosphine(磷化氢) in Venus's atmosphere, with one potential explanation that it is the by­product of biology.That is because the only way this gas is made on Earth is in laboratories or by microbes(微生物)．Though this doesn't mean it was produced by life on Venus, attempts to find non­biological explanations for its presence have so far failed. Our best way of confirming or rejecting the possibility of life on Venus is to go and have a proper look.While Mars has been the focus of interplanetary exploration efforts lately, the phosphine discovery lets people look at Venus in a new light.As NASA administrator Jim Bridenstine tweeted, “It's time to prioritise Venus.” In the months and years to come, computer simulations will be used to further study the possible chemistries of the atmosphere on Venus.More laboratory experiments will be conducted to try to identify other ways the phosphine there could be produced.However, there is no guarantee that these efforts will reveal the true nature of this substance on Venus.A newly­proposed strategy is to directly sample the atmosphere and surface of Venus.By doing so, we would be able to take direct measurements of phosphine. The discovery of phosphine in Venus's atmosphere is a great accomplishment.The scientific efforts may be just what we need to finally refocus on this neglected world.Pos