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Q40:
Two centuries ago, Tufe Peninsula became separated form the mainland, isolating on the newly formed Tufe Island a population of Turfil sunflowers. This population’s descendants grow to be, on average, 40 centimeters shorter than Turfil sunflowers found on the mainland. Tufe Island is significantly drier than Tufe Peninsula was. So the current average height of Tufe’s Turfil sunflowers is undoubtedly at least partially attributable to changes in Tufe’s environmental conditions.
Which of the following is an assumption on which the argument depends?
There are no types of vegetation on Tufe Island that are known to benefit from dry conditions.
There were about as many Turfil sunflowers on Tufe Peninsula two centuries ago as there are on Tufe Island today.
The mainland’s environment has not changed in ways that have resulted in Turfil sunflowers on the mainland growing to be 40 centimeters taller than they did two centuries ago.
The soil on Tufe Island, unlike that on the mainland, lacks important nutrients that help Turfil sunflowers survive and grow tall in a dry environment.
The 40-centimeter height difference between the Turfil sunflowers on Tufe Island and those on the mainland is the only difference between the two populations.
答案是C没问题。可偶不太理解题干的意思，被peninsula、island、mainland弄糊涂了...
第一句：Two centuries ago, Tufe Peninsula became separated form the mainland, isolating on the newly formed Tufe Island a population of Turfil sunflowers.说Tufe Peninsula(半岛)和大陆分离，使得一部分太阳花留在了Tufe Island(岛屿)上，请问这里的Tufe peninsula和Tufe Island是什么关系呢，怎么感觉一个意思么？（可是第三句[见下面]表明不是一个东东啊？？）
第二句 This population’s descendants grow to be, on average, 40 centimeters shorter than Turfil sunflowers found on the mainland. 说Tufe Island上的太阳花平均高度比在大陆上的太阳花要矮40厘米。
第三句 Tufe Island is significantly drier than Tufe Peninsula was. 说Tufe Island比Tufe Peninsula干燥的多。
晕了。。。Island、peninsula和mainland到底是什么关系啊？？？
请哪位nn帮忙翻译解释一下巴，不胜感激！！ | 
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发表于 2004-10-8 00:35:00
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