gwd7-21的一个疑问

wjfruc

请问GWD7-21

Which of the following most logically completes the passage?

Each species of moth has an optimal body temperature for effective flight, and when air temperatures fall much below that temperature, the moths typically have to remain inactive on vegetation for extended periods, leaving them highly vulnerable to predators. In general, larger moths can fly faster than smaller ones and hence have a better chance of evading flying predators, but they also have higher optimal body temperatures, which explains why ______.

1. large moths are generally able to maneuver better in flight than smaller moths
               
2. large moths are proportionally much more common in warm climates than in cool climates
               
3. small moths are more likely than large moths to be effectively camouflaged while on vegetation
               
4. large moths typically have wings that are larger in proportion to their body size than smaller moths do
               
5. most predators of moths prey not only on several different species of moth but also on various species of other insects

答案选择B，我觉得像是C，but连接的后面和前面对比当然是要说大的成功次数少啊。为什么选B？？？

Hongweishan

When come to complete sentence, the filling part need to be most consistent with the preceding portion within the sentence. (1)

Choice C is more consistent with the 1st sentence within the argument. (2)

When comes to priority, factor (1) overcomes factor (2).

wjfruc

Thanks !

pc123

B。

C不对的地方在于题目中没有提到什么coumaflage. out of scope

xfi883

原文大意：

因为：每种moth都要求高体温，（即使大moth比小moth飞得快，也需要高体温）

所以：大moth也要高体温

答案b就是表达了这个意思。你没有读懂原文，最好不要靠什么关键词分析，那是建立在能读懂文章的基础上。

sjw12

xfi883 发表于 2009-6-8 23:48
原文大意：因为：每种moth都要求高体温，（即使大moth比小moth飞得快，也需要高体温）所以：大moth也要高体 ...

亲……你好像翻译错了 optimal是最佳的意思 原文的意思是：每一种蛾子都有自己飞行的最佳体温 不是要求高体温～