标题: OG12-51看不懂 [打印本页] 作者: wxz11191975 时间: 2012-10-29 22:36 标题: OG12-51看不懂 就那个部分可降解的塑料包装 下面是书上的解释。 我不明白那句我描粗了加了下划线的那句话。。。。。。。哪位可以帮我讲一下 One variety of partially biodegradable plastic beverage container is manufactured from small bits of plastic bound together by a degradable bonding agent such as cornstarch. Since only the bonding agent degrades, leaving the small bits of plastic, no less plastic refuse per container is produced when such containers are discarded than when comparable nonbiodegradable containers are discarded. Which of the following, if true, most strengthens the argument above? (A) Both partially biodegradable and nonbiodegradable plastic beverage containers can be crushed completely flat by refuse compactors. (B) The partially biodegradable plastic beverage containers are made with more plastic than comparable nonbiodegradable ones in order to compensate for the weakening effect of the bonding agents. (C) Many consumers are ecology-minded and prefer to buy a product sold in the partially biodegradable plastic beverage containers rather than in nonbiodegradable containers, even if the price is higher. (D) The manufacturing process for the partially biodegradable plastic beverage containers results in less plastic waste than the manufacturing process for nonbiodegradable plastic beverage containers. (E) Technological problems with recycling currently prevent the reuse as food or beverage containers of the plastic from either type of plastic beverage container. Argument Evaluation Situation One kind of partially biodegradable beverage container produces as much plastic refuse per container as a nonbiodegradable container does because only the bonding agent, not the plastic, degrades once the container is discarded. Reasoning Which point strengthens the argument? Th e information that strengthens the argument will help rule out a possible objection to the argument. In this case, one possible objection would be that the partially biodegradable containers might contain less plastic given that the container is made up in part of the degradable bonding agent. So, discovering that the partially biodegradable containers actually use more plastic than comparable nonbiodegradable ones in order to compensate for the weakness of the biodegradable bonding agent would strengthen the argument. A Nonbiodegradable plastic containers can be crushed completely fl at. To say that biodegradable ones can be completely crushed also is perfectly compatible with saying that they contain less plastic. B Correct. Th is statement properly identifi es a point that strengthens the argument by saying that the container actually produces more plastic refuse. C Consumers’ preferences are not relevant to the argument about residual plastic. D Th e argument is not concerned with waste from manufacturing processes, but only with the product itself. E No reason is given to indicate that the inability to reuse the plastic from either type of container is related to the amount of plastic in either container. Th e correct answer is B.作者: HarrisZheng 时间: 2012-10-30 14:47
在被抛弃时，拼接包装并不比同样大小的完整不可降解包装产生更少的垃圾。作者: lesley0927 时间: 2013-6-21 07:49
可降解的管子和不可降解的罐子，最后剩下的塑料是一样多的作者: francoisyang 时间: 2013-6-21 10:48
原文的意思是，鉴于部分可降解的罐子的塑料成分不能降解，那么部分可降解的罐子和完全不可降解的罐子相比，丢弃时产生的废塑料不见得少。
B选项说部分降解的罐子用的塑料要比不可降解的罐子多，所以加强了原文的结论。
下面是书上的解释。 我不明白那句我描粗了加了下划线的那句话。。。。。。。
哪位可以帮我讲一下