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Popping food into the microwave for a couple of minutes may seem utterly harmless, but Europe’s stock of these quick-cooking ove
Popping food into the microwave for a couple of minutes may seem utterly harmless, but Europe’s stock of these quick-cooking ove
admin
2021-01-06
16
问题
Popping food into the microwave for a couple of minutes may seem utterly harmless, but Europe’s stock of these quick-cooking ovens emit as much carbon as nearly 7 million cars, a new study has found. And the problem is growing. With costs falling and kitchen appliances becoming "status" items, owners are throwing away microwaves after an average of eight years. This is pushing sales of new microwaves which are expected to reach 135 million annually in the EU by the end of the decade.
A study by the University of Manchester calculated the emissions of CO
2
—the main greenhouse gas responsible for climate change—at every stage of microwaves, from manufacture to waste disposal. "It is electricity consumption by microwaves that has the biggest impact on the environment," say the authors. The authors also calculate that the emissions from using 19 microwaves over a year are the same as those from using a car. According to the same study, efforts to reduce consumption should focus on improving consumer awareness and behaviour. For example, consumers could use appliances in a more efficient way by adjusting the time of cooking to the type of food.
However, David Reay, professor of carbon management, argues that, although microwaves use a great deal of energy, their emissions are minor compared to those from cars. In the UK alone, there are around 30 million cars. These cars emit more than all the microwaves in the EU. Backing this up, recent data show that passenger cars in the UK emitted 69 million tons of CO
2
in 2015. This is 10 times the amount this new microwave oven study estimates for annual emissions for all the microwave ovens in the EU. Further, the energy used by microwaves is lower than any other form of cooking. Among common kitchen appliances used for cooking, microwaves are the most energy efficient, followed by a stove and finally a standard oven. Thus, rising microwave sales could be seen as a positive thing.
What does Professor David Reay think of the use of microwaves?
选项
A、It will become less popular in the coming decades.
B、It makes everyday cooking much more convenient.
C、It plays a positive role in environmental protection.
D、It consumes more power than conventional cooking.
答案
C
解析
推理判断题。定位句指出,在所有常见的厨房烹饪用具中,微波炉是最节能的,其次是炉子,最后是标准的烤箱。这样一来,提高微波炉的销量可以被视为一种积极的举措。由定位句可知,微波炉是最节能的,也就是碳排放量最小,对环境危害最小,故答案为C)“它在环保方面起到一个积极的作用”。
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0
大学英语四级
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