2. 外语
  3. Japan is getting tough about recycling—and not in the paper and plastic kind of way. Recently, the country requires that all ele

Japan is getting tough about recycling—and not in the paper and plastic kind of way. Recently, the country requires that all ele

admin2012-12-26  123
问题     Japan is getting tough about recycling—and not in the paper and plastic kind of way. Recently, the country requires that all electronic goods—TVs, VCRs, stereos, and more—be recycled. But recycling will not be left to consumers, instead, the devices will be sent to the original manufacturer for proper disposal.
    The new law poses a few challenges to manufacturers who are now rushing to set up collection networks and perfecting techniques to disassemble and recycle older products. With an eye toward the future, they are also integrating easily recycled materials into new products. Plastics, a major component of most electronic products, pose a particular obstacle because their quality becomes worse and worse with age, losing strength and flexibility even if reprocessed. NEC Corp. overcomes this problem by creating a plastics sandwich, in which the filling is 100 percent recycled plastic and the outer layers a mixture of 14 percent recycled material. The resulting plastic has sufficient strength and toughness for use as a case for desktop PCs. The company, in cooperation with plastic maker Sumitomo Dow, has also developed a new plastic, which engineers claim retains its mechanical properties through repeated recycling. NEC uses the plastic, which is also flame-retardant (阻燃的) in battery cases for notebook PCs.
    Meanwhile, Matsushita Electric, maker of the Panasonic brand, is avoiding plastic in favor of magnesium (镁). Magnesium, says the company, is ideal for recycling because it retains its original strength through repeated reprocessing. Matsushita has developed molding techniques to form magnesium into the case for a 21-inch TV. Unfortunately, the magnesium case and energy-saving features make the TV about twice as expensive as an ordinary model. The company hopes, however, that increased use of magnesium will eventually bring prices down.
In the passage, it is implied but NOT stated that______.
选项 A、disposing the plastics is one of NEC Corp’s businesses
B、magnesium is an ideal material for the case of TV
C、21-inch TV with magnesium case isn’t very popular so far
D、magnesium must be better than the plastics
答案C
解析 推理判断题。本题考查转折处。最后一段倒数第2句中的Unfortunately一词指出了用镁作机壳的电视机很贵，从而暗示它们并不受消费者欢迎，所以选项C正确。选项A属原文明确表达的意思。本段第2旬只指出镁是一种理想的再生材料(ideal for recycling)，因此选项B不对；全文并未比较塑料和镁哪个更好，因此选项D不对。
转载请注明原文地址:https://kaotiyun.com/show/PZw7777K
0

大学英语四级

相关试题推荐
随机试题
最新回复(0)