同學詢問:TPO 41-2
康老師,我看不出present day Venus 三個答案在文章的哪裡,可以請老師您有空指點一下嗎?
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康康老師
A 選項對應文章第四段:But being closer to the Sun than Earth is, enough of the liquid water on Venus would have vaporized to create a thick cover of water vapor clouds.
C 選項對應第一段:These gases should therefore have been important parts of the original
atmospheres of both Venus and Earth 或者第二段:Venus and Earth are similar in size and mass, so Venusian volcanoes may well have outgassed as much water vapor as on Earth, and both planets would have had about the same number of comets strike their surfaces.
現代金星:
B 選項對應文章第六段:Temperatures eventually became high enough to "bake out" any carbon dioxide that was trapped in carbonate rocks.(重點在於 any carbon dioxide)
D 選項對應文章第四段:this humid atmosphere-perhaps denser than Earth’s present-day atmosphere, but far less dense than the atmosphere that envelops Venus today—would have efficiently trapped heat from the Sun.(重點關注插入語部分)
F 選項對應文章第六段:Once Venus’ oceans disappeared, so did the mechanism for
removing carbon dioxide from the atmosphere. With no oceans to dissolve it, outgassed carbon
dioxide began to accumulate in the atmosphere, intensifying the greenhouse effect even more.
(溫度過高,水汽都蒸發掉,而且第六段末尾說明大氣中的水也被分解)
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