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
职业资格
These days, many large city buildings are equipped with their own air-conditioning systems. These systems help keep the building
These days, many large city buildings are equipped with their own air-conditioning systems. These systems help keep the building
admin
2017-03-25
48
问题
These days, many large city buildings are equipped with their own air-conditioning systems. These systems help keep the buildings cool, but they can also damage the environment. Since they use a lot of electricity, for instance, they contribute indirectly to global warming. In addition, the water that flows through the systems is often cooled using chemicals called chlorofluorocarbons, or CFCs, that are believed to damage the Earth’s ozone layer. Recently, though, a system has been built in the city of Toronto, Canada, that cools buildings with little damage to the environment.
In the traditional air-conditioning systems found in most large buildings, water is pumped through the building in a continuous cycle. The water is first cooled to a temperature of 4℃ in machines called chillers. It is then sent to individual units that cool the air in each room. As the water flows through the building, it gradually becomes warmer. Finally, it reaches the roof, where it is left to cool down naturally in a water tower. After that it is returned to the chillers, where the cycle begins again.
Toronto lies on the shore of Lake Ontario, one of North America’s Great Lakes, and the new system makes use of cold water taken from about 80 meters below the surface of the lake. At this depth, the water in the lake remains at 4℃ all year round. This is exactly the temperature to which the water in air-conditioning systems is cooled. However, the water from the lake is not pumped directly into the air-conditioning systems. Instead, it is used to cool the water that is already inside the air-conditioning systems. After that, the lake water is added to the city’ s ordinary water supply.
Enwave, the company that developed this deep-lake cooling system, says that it uses 75 percent less energy than traditional air conditioning. And since no CFCs are used, no damage can be caused to the ozone layer. Not every city is located next to a large lake, but experts believe that systems like the one being used in Toronto could be built elsewhere by using other natural sources of cold water.
What happens in the end to the water from Lake Ontario?
选项
A、It is used by the residents of Toronto.
B、It is returned to a place deep in the lake.
C、It is cooled down before being used again.
D、It is added to the water inside air-conditioning systems.
答案
A
解析
细节题。短文第三段最后指出“After that,the lake water is added to the city’s ordinarywater supply.”,即湖水最后应用到城市居民用水中。故选A。
转载请注明原文地址:https://kaotiyun.com/show/CB3v777K
本试题收录于:
英语学科知识与教学能力题库教师资格分类
0
英语学科知识与教学能力
教师资格
相关试题推荐
下面是初中某位历史教师关于《三国鼎立》课堂教学内容所做的课堂小结:师:通过老师对本课内容的讲解,谁能回答一下这个问题:“三国鼎立局面的出现,是历史的进步还是历史的倒退呢?”生:……师:安静一下,大家可以举手示意老师来发言。生
根据下列材料设计教学片段。(1)《义务教育历史课程标准(2011年版)》规定:了解半坡居民、河姆渡居民的生活和原始农业的产生。知道考古发现是了解史前社会历史的重要依据。(2)课文摘录:河姆渡原始居民住着干栏式的房子,过着定居生活。他们已
Atahigherlevelofwriting,whichofthefollowingcognitive,skillsshouldNOTencouraged?
AccordingtoNoamChomsky,humanbeingsarebornwithaninnateabilitytoacquireandproducelanguageknownas______.
Ifateacherstartswithlanguageexamplesandguidesstudentstoworkouttherules,he/sheisusingthe______method.
Popularasitmightbe,thePresentation-Practice-Productionteachingmodelisnotconsideredappropriateinteaching______.
Whichofthefollowingdoesateacherwanthis/herstudentstodevelopifhe/sheguidesthemtotakenoteskeywords,abbrev
Inalisteningactivity,studentsareaskedtonotedownthetimeandplacesofevents.Theaimofthisactivityistodevelopt
Thepurposeofmidtermandfinalexaminationsistoassesshowmuchstudentshavemasteredwhathasbeentaughtinclass.Thisk
Makesureyou’vegotthepassportsandticketsand______beforeyouleave.
随机试题
AmericanBlacksexperiencedarevolutionafter1945,arevolutioninexpectations.FollowingWorldWarⅡ,thesteadymovementto
Tomwastooexhaustedtowakeeasily______.
患者,男,50岁。腰背疼痛半年伴不规则发热、尿频、尿痛半年。检验血红蛋白:75g/L,尿蛋白(++++),白细胞10~15/HP,尿B-J蛋白(+)。血清蛋白电泳在β和γ区带之间有一M蛋白占40%。外周血浆细胞25%,浆细胞绝对值2.3×109/L。本病最
胸部摄影时,FFD选用180cm的原因是避免因
患者,女性,23岁。因一男青年开玩笑时对她说了一句“Iloveyou”而坚信对方深爱上她了,虽然对方明确表示只是开玩笑,患者仍然坚信。此症状是
关于销售预测的定量分析法的说法不正确的是()。
管理咨询不仅要为客户解决管理中的问题,还要着眼于提高客户的管理素质。因此,咨询人员不仅要告诉客户应该怎样做,还要告诉客户为什么这样做。这种做法()。
一般认为,影响创造性的因素主要有环境、智力和______。
艾滋病被称为“20世纪的瘟疫”,艾滋病病毒将人体内的()作为攻击目标。
软件工程研究的内容主要包括:【】技术和软件工程管理。
最新回复
(
0
)