In a certain rural area, people normally dispose of household garbage by burning it. Burning househo...

题目信息

In a certain rural area, people normally dispose of household garbage by burning it. Burning household garbage releases toxic chemicals known as dioxins. New conservation regulations will require a major reduction in packaging—specifically, paper and cardboard packaging—for products sold in the area. Since such packaging materials contain dioxins, one result of the implementation of the new regulations will surely be a reduction in dioxin pollution in the area.

Which of the following, if true, most seriously weakens the argument?

A:Garbage containing large quantities of paper and cardboard can easily burn hot enough for some portion of the dioxins that it contains to be destroyed.

B:Packaging materials typically make up only a small proportion of the weight of household garbage, but a relatively large proportion of its volume.

C:Per-capita sales of products sold in paper and cardboard packaging are lower in rural areas than in urban areas.

D:The new conservation regulations were motivated by a need to cut down on the consumption of paper products in order to bring the harvesting of timber into a healthier balance with its regrowth.

E:It is not known whether the dioxins released by the burning of household garbage have been the cause of any serious health problems.

参考答案及共享解析

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正确答案： A:Garbage containing large quantities of paper and cardboard can easily burn hot enough for some portion of the dioxins that it contains to be destroyed.

答案A

题目大意：在某个农村地区，人们通常通过焚烧生活垃圾来处理生活垃圾。焚烧生活垃圾会释放出有毒物质。新的保护条例将要求大幅减少包装，特别是在该地区销售的产品的纸和纸板包装。由于这些包装材料含有有毒物质，新法规实施后的一个结果肯定是减少了该地区的污染。

逻辑链：问削弱，如果含有大量纸张和纸板的垃圾燃烧时的温度足以销毁其中部分有毒物质，那么减少这类垃圾的量反而会增加烧燃垃圾时的污染，就可以削弱了

选项分析：

A. 正确

B. 包装纸重量很轻量很大，和污染无关，还是会造成污染

C. 和人均销量无关

D. 法规的另一个动机，并不能削弱文段

E. 健康问题，跳出讨论范畴

笔记