40.D【解析】题意:现在,很多国家。
根据文章第五段第二、三句Many countries are nOW interested in Bhutans GNH.These countries are investigating their own ways to measure happiness可知,很多国家用自己的方式去衡量幸福。故选 D。
第三篇
41.B【解析】题意:科学家声称在土星上发现了什么?
根据文章第一段Scientists say they have discovered hints of alien life on the Saturns moonthe existence of methanebased form of life on Saturns biggest moon可知,科学家声称在土星最大的卫星 上发现了存在甲烷为基础的生命形式。故选B。
42.D【解析】题意:下列关于土卫六的说法哪个是正确的?
根据文章第二段Scientists have reportedly discovered clues showing primitive alien beings are breathingin Titans dense atmosphere filled with hydrogen可知,科学家们报导他们发现了被氢气环 绕的土卫六上有原始外星生物呼吸的线索,由第三段第二句they say,points to the existence of somebugsconsuming the hydrogen at the surface of the moon less than half the size of the Earth。进一步得知这种外星生物是消耗氢气的,故D项正确。由第三段第二句也可知土卫六的大小不到地球的一半,由此A项错误。由第六段 Scientists had expecteda coating of acetylene on Titans surface. But Cassini detected no acetylene on the surface可知,太空船并没有探测到土卫六表面有乙炔的存在,故B项错误。根据第五段第二、三句on Titana methanebased organism would have to use a sub stance that is liquid as its medium for living processes,but not water itself.Watermuch too cold to support lire可知以甲烷为基础的生物可以利用液体作为生命活动的介质,但却不是水,故C项错误。所以本题选D.
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