2. 职称英语
  3. If the population of’ the earth goes on increasing at its present rate, when wil

If the population of’ the earth goes on increasing at its present rate, when wil

游客2023-10-08  71
问题 If the population of’ the earth goes on increasing at its present rate, when will we use up all the oil that drives our cars? [br] According to the Sagan’s opinion, which of the following statements is NOT true?
选项 A、In a fairly short time, the algae will break down the carbon dioxide on Venus into oxygen and carbon.
B、The atmosphere of Venus can be changed into the same one as earth.
C、Algae organism can live in extremely hot or cold atmospheres and at the same time pro- duce oxygen.
D、As soon as the algae have done their work, the atmosphere of Venus is suitable for people to live.
答案 D
解析 从文章最后一段可以得知：藻类植物把二氧化碳分解成为氧气和碳以后，只是使金星的大气层温度降低一点，但在人类踏上金星前，氧气还必须产生雨水，在经过数午后才能使温度降到适合人类在上面生活。所以选D。
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