雅思阅读:人们低估能源消耗


时间:2016/1/24
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  辛达雅思代报考位:到2015年1月24日下午雅思官网没有释放考位,在此提醒广大考生抓紧时间报名,注意自己的考试时间,如对雅思报名有任何疑问,欢迎咨询在线客服。

  时下,低碳日子已经变成一种时髦,咱们开端从日子的点点滴滴中来削减动力耗费,可实际上咱们许多时候通常只重视于少数的动力耗费,如及时关灯,却忽略了咱们的大型家用电器对动力的耗费,如加热器和干洗机等。详细请看以下《经济学家》周刊网站的一则有关报导:

People habitually underestimate their energy consumption

Environmental asceticism has created a vogue for upgrading light-bulbs and tweaking thermostats. But according to a new piece of research, many of these actions—however virtuous—arise from faulty perceptions of energy savings.

Shahzeen Attari of Columbia University and her colleagues used Craigslist, an online marketplace, to recruit 505 volunteers from across America. Each was asked to estimate the energy consumption of nine household devices (such as stereos and air conditioners) as well as the energy savings incurred by six green activities (like swapping incandescent bulbs for fluorescent ones). The researchers then compared the volunteers’ estimates with the actual energy requirements or savings in question.

Their results, published this week in the Proceedings of the National Academy of Sciences, suggest that although people do grasp basic energy trends, they are decidedly hazy on the details. On average, participants underestimated both energy use and energy savings by a factor of 2.8—mostly because they undervalued the requirements of large machines like heaters and clothes dryers. As a result, they failed to recognise the huge energy savings that can come from improving the efficiency of such appliances.
Miscalculations like these hinder conservation efforts. When asked to rank the single most effective way to save energy, participants typically endorsed activities with small savings, such as turning off lights, while ignoring what they could economise on larger devices. This suggests that people misallocate their efforts, fretting over an unattended lamp (at 100 watts) while neglecting the energy they could save by nudging their washer settings from “hot” to “warm” (4,000 watt-hours for each load of laundry).

A quirk of human psychology could help to explain these persistent underestimates. When calculating such things, people often adopt a familiar unit as a mental yardstick and then generate predictions based on that unit. As a side-effect, their estimates cluster too closely around the yardstick measure—a phenomenon called “anchoring”. In Dr Attari’s study, for example, the survey provided a reference measure by stating the amount of energy used by a standard light bulb. Participants may have responded by unconsciously anchoring their estimates to this value, compressing their predictions into the relatively low range of an incandescent bulb.

This suggests an obvious criticism: by providing the light-bulb figure, the researchers primed their subjects to underestimate energy consumption. But the authors argue that rather than introducing a methodological flaw, they simply acknowledged a shared point of reference. When it comes to an accessible, quantitative measure of energy, consumers are uniquely familiar with the 100W bulb. As a result, Dr Attari expects bulbs to exert an anchoring effect on the general population as well as on her volunteers, contributing to widespread underestimates of the energy demands of large appliances.

Fortunately, increased information seems to combat such miscalculations. In the study those who were better at maths made more accurate predictions, as did those with broadly pro-environmental attitudes. Ways of making energy consumption clearer, such as devices that constantly monitor household appliances, could therefore help people make better decisions about how to save energy.

  【热点论题】雅思代报总结依据上文所述,咱们从本身做起,保护环境,节省动力,如:不必白炽灯,改用荧光灯,再到自动关灯。但是,咱们确实忽略了一些大型的电器却正在大肆地耗费着咱们的动力。自从09年12月份的哥本哈根会议的召开,节能、低碳这些环保的称号变成时下的热点论题,相应也是雅思考试比照热心的考试主题。所以,主张2010年的考生对诸如此类论题千万不能忽略。再者,这类的论题关于考生来说既不生疏但好像又有些生疏,关于这方面的文章,咱们应当增加阅览量,贮存必备的背景知识,做到未雨绸缪。关于这么的文章,学生也可能会碰到比照冷僻和难的词汇、句型、文章结构,当然广泛阅览也无疑可以协助考生进步阅览速度,改善了解。

  【难句词汇】雅思考生的阅览难点之一即是词汇量和句型把握程度的不一样,假如学生的词汇量缺乏,那么文章将看不懂,咱们从上文中就可以学到许多的句型和词汇。

Each was asked to estimate the energy consumption of nine household devices (such as stereos and air conditioners) as well as the energy savings incurred by six green activities (like swapping incandescent bulbs for fluorescent ones).

插入语:(  )

household devices家庭电器

stereos 立体音响

swapping交流

incandescent bulbs 白炽灯泡

fluorescent: 荧光的

as well as = and :和

When asked to rank the single most effective way to save energy, participants typically endorsed activities with small savings, such as turning off lights, while ignoring what they could economise on larger devices.

When引导的时刻短语作全部语句的状语和while引导表比照的非谓语动词短语

rank v. 将……列为……

endorse 附和

economise v. 节省、节省

  最后,雅思代报预祝大家考试顺利  




    




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