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[Reading Comprehension]

试题详情

文章:

题目:

Which of the following, if true, would most weaken the author’s conclusion in lines 18–22 ?

选项:

A、New research reveals that the number of species of birds and parasites that prey on lepidoptera has dropped significantly in recent years.
B、New experiments in which the habitats of lepidoptera are altered in previously untried ways result in the shortening of lepidoptera population cycles.
C、Recent experiments have revealed that the nuclear polyhedrosis virus is present in a number of predators and parasites of lepidoptera.
D、Differences among the habitats of lepidoptera species make it difficult to assess the effects of weather on lepidoptera population cycles.
E、Viral disease is typically observed in a large proportion of the lepidoptera population.

答案:

B

提问:

这道题我的思路如下: 看原文18-22行,读完以后我对原文的理解是:证据表明,虫子的数量跟自身因素有关,跟外部因素(比如天敌啦,寄生虫啦之类的)关系不怎么大。 题目问的是WEAKEN,我想的就是找一个能体现跟外部因素有关,或者无法确定昆虫数量到底跟谁有关的选项。 排除A,D,E以后剩下B和D。 D说的是lepi这个物种习性不一样,所以很难界定天气是否对其population cycle有影响。 我觉得, 这就是说明,lepi这个物种的population cycle到底受谁影响很难讲,因为没法控制变量呀。所以选了D

解答:

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阅读975
解答: sysadmin

提问:

这道题我的思路如下: 看原文18-22行,读完以后我对原文的理解是:证据表明,虫子的数量跟自身因素有关,跟外部因素(比如天敌啦,寄生虫啦之类的)关系不怎么大。 题目问的是WEAKEN,我想的就是找一个能体现跟外部因素有关,或者无法确定昆虫数量到底跟谁有关的选项。 排除A,D,E以后剩下B和D。 D说的是lepi这个物种习性不一样,所以很难界定天气是否对其population cycle有影响。 我觉得, 这就是说明,lepi这个物种的population cycle到底受谁影响很难讲,因为没法控制变量呀。所以选了D

解答:

点赞0
阅读976
解答: sysadmin老师

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