首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
考研
Why do we along with 75 other countries—alternate between standard time and daylight time? Although many people believe it has a
Why do we along with 75 other countries—alternate between standard time and daylight time? Although many people believe it has a
admin
2015-09-30
39
问题
Why do we along with 75 other countries—alternate between standard time and daylight time? Although many people believe it has an agricultural provenance, daylight time has always been a policy meant to save energy. As Benjamin Franklin argued, if people moved up their summer schedules by an hour, they could live by "sunshine rather than candles" in the evenings.
Energy conservation was the motivation for daylight time during World Wars I and II and the oil embargo of the 1970s, and it remains so today—even though there has been little scientific evidence to suggest daylight time actually helps us cut back on electricity use.
Recently, however, we were able to conduct a study in Indiana, where daylight time was instituted statewide only in 2006. Before that year, daylight time was in effect in just a handful of counties. This change of policy offered a unique, natural experiment to measure the overall effect on residential electricity consumption. We could compare the amount of energy used by households in the late-adopting counties during the two years before they switched to daylight time with the amounts they used during the year afterward—while using counties that always practiced daylight time as a control group.
We found that daylight time caused a 1 percent overall increase in residential electricity use, though the effect varied from month to month. The greatest increase occurred in late summer and early fall, when electricity use rose by 2 percent to 4 percent.
Daylight time costs Indiana households an average of $3. 29 a year in higher electricity bills, or about $ 9 million for the whole state. We also calculated the health and other social costs of increased pollution emissions at $1.7 million to $5.5 million per year.
What explains this unexpected result? While daylight time reduces demand for household lighting, it increases demand for heating in the early spring and late fall(in the mornings)and, even more important, for cooling on summer evenings. Benjamin Franklin was right about candles, in other words, but he did not consider air-conditioners.
In regions of the United States where demand for air-conditioning is greater than in Indiana, this spike in cooling costs is likely to be even greater. Arizona, one of the hottest states, may have it right; it does not practice daylight time.
Eliminating daylight time would thus accord with President-elect Barack Obama’s stated goals of conserving resources, saving money, promoting energy security and reducing climate change. At the very least, we should abandon the notion that we are saving energy while enjoying the extra hour of sunlight on hot summer evenings.
It is implied in the text that President Barack Obama would______.
选项
A、live up to his promise to reduce climate change
B、promote the use of daylight time in more states
C、accomplish his stated goals at his inauguration
D、give support to the exclusion of daylight time
答案
D
解析
根据最后一段中的“Eliminating daylight time would thus accord with President—elect BarackObama’s stated goals of conserving resources,…”,D应为答案。
转载请注明原文地址:https://jikaoti.com/ti/fne7FFFM
0
考研英语一
相关试题推荐
Clothes,decorations,physique,hairandfacial(1)_____giveagreatdealofinformationaboutus.Forinstance,wewearclothe
TheInlandRevenueonThursdayaccusedtheBritishfilmindustryofabusinggovernmentaid,witheveryproductionofrecentyear
ControlanUniversityLogisticNumber,BoycottSchoolFeesRiseOverthelasttwodecades,collegesanduniversitiesdoubled
Everyonemusthavehadatleastonepersonalexperiencewithacomputererrorbythistime.Bankbalancesaresuddenlyreported
Gettingotherpeopletodowhatyouwantthemtodoisanartandasciencethatyoumustmasterifyouwanttosucceedinthis
(46)Attheendofthenineteenthcentury,arisinginterestinNativeAmericancustomsandanincreasingdesiretounderstandNa
Itistheworld’sfourth-most-importantfoodcrop,aftermaize,wheatandrice.Itprovidesmorecalories,morequickly,usingl
Advertisingisaformofselling.Forthousandsofyearstherehavebeenindividualswhohavetriedto(1)_____otherstobuyth
Oneofthegreatachievementsofmoderntimesisthatwehavemadesocietymorefair.Sixtyyearsago,theupperclassesweredo
ThemostthoroughlystudiedintellectualsinthehistoryoftheNewWorldaretheministersandpoliticalleadersofseventeenth
随机试题
关于细胞毒性脑水肿描述,错误的是
关于葡萄胎的清宫术,下列哪项不正确
HLA-I类分子重链的α1和α2形成的槽状结构HLA-I类分子重链的胞质区
反映疾病严重程度的指标是
订立合同的当事人一方向另一方发出的希望和他订立合同的意思表示是()。
近因效应也称新颖效应,是指在多种刺激一次出现的时候,印象的形成主要取决于后来出现的刺激,即在认知和交往过程中,当人们识记一系列事物时对末尾部分项目的记忆效果优于中间部分项目的现象。根据上述定义,下列选项中不属于近因效应的是()。
DepressionCarrieMcintyreandDamonThompsonwereeagerlyplanningtheirfuturetogether.TheyoungFloridacouplehadgoo
Whenthemanaskedffhecouldpaybycheck,theassistant______.Whywasthemaninvitedintothemanager’soffice?
Accordingtothestatement,theUNSecurityCouncilresolutionconcerningIsraelandYasserArafatwaspresentedbytheUnitedS
Manyoftoday’scollegestudentsaresufferingfromaformofshock.Lisaisagoodexampleofastudentinshock.Sheisan
最新回复
(
0
)