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
外语
Here amid the steel and concrete canyons, green grass grows. A hawthorn tree (山楂树) stands in new soil, and freshly dug plants be
Here amid the steel and concrete canyons, green grass grows. A hawthorn tree (山楂树) stands in new soil, and freshly dug plants be
admin
2010-09-25
28
问题
Here amid the steel and concrete canyons, green grass grows. A hawthorn tree (山楂树) stands in new soil, and freshly dug plants bend in the wind.
But Chicago City Hall here seems an unlikely spot for a garden of any variety-especially 20,000 square feet of gardens-on its roof.
As one of a handful of similar projects around the country, the garden is part of a $1.5 million demonstration projected by the city to reduce its "urban heat islands", said William Abolt, the commissioner of the Department of Environment.
Heat islands-dark surfaces in the city, like rooftops-soak up heat. The retention can bake a building, making it stubborn to cooling.
The roof of City Hall, a 90-year-old gray stone landmark on LaSalle Street in the heart of downtown, has been known to reach temperature substantially hotter than the actual temperature on the street below.
The garden will provide greenery and shade. "And that," said the city officials, "will save the city dollars on those blistering summer days." The project savings from cooling is about $4,000 a year on a new roof whose life span is about 50 percent longer than that of a traditional roof.
The sprawling open-air rooftop garden is being carefully, built on a multi-tiered bed of special soil, polystyrene, egg-carton, shaped cones and "waterproof membrane" mall to keep the roof from leaking, or caving under the normal combined weight of soil, rain and plant life.
The design calls for soil depths of 4 inches to 18 inches. When the last plants and seedlings are buried and the last bit of compost is laid, the garden will have circular brick stepping-stones winding up to hills.
"The primary focus of what we want to do was to establish this laboratory on the top of City Hall to get people involved and understanding their impact on the environment and how the little things can make an impact on the quality of life", Mr. Abolt said, adding that the plants also help to clear the air.
Rooftop gardens, in places where concrete jungles have erased plants and trees, are not new, not even in Chicago. Arms of greenery dangling over terraces or sprouting from rooftops, common in Europe, are becoming more so in the United States as people become increasingly conscious about the environment.
Richard M. Daley, who urged the environmental department to look into the project after noticing rooftop gardens in Hamburg, Germany a few years ago, has praised the garden as the first of its kind on a public building in the country.
It will hold thousands of plants in more than 150 species-wild onion and butterfly weed, sky-blue aster and buffalo grass-to provide data on what species adapt best. Small plants requiring shallow soil depths were chiefly selected.
The rooftop garden project ______.
选项
A、is common and popular in the country
B、is a demonstration project and costs the city government 1.5 million dollars
C、will make the ordinary cooling down of the city in summer unnecessary
D、aims at getting people involved and understanding their impact on the environment
答案
D
解析
细节题。文章第三段第一句指出,该工程是全国为数不多的此类工程之一,所以排除A;还说它是政府投资150万美元的示范工程的一部分,而不是全部,故排除B;文章第四段提到屋顶花园可以降温,但并没有否定传统降温方式的必要性,故排除C;由文章第九段阿伯特先生所说的话可知,D正确。
转载请注明原文地址:https://kaotiyun.com/show/5kz7777K
0
大学英语六级
相关试题推荐
Directions:Nowadayspeoplearebecomingincreasinglyawareoftheimportanceofhealth.Andtheyhavedifferentwaystostayhe
A、Sharp-eyedexperts.B、Peoplewhoknowlittleaboutthisfield.C、Dealerswhoselloldbooks.D、Peoplewholikecollectingold
A、Citylifeismuchthesameinmanypartsoftheworld.B、IntheUnitedStates,farmfamiliesliveontheirownfarms.C、Inman
EffortstoProtecttheEnvironmentMostscientistsagreethatifpollutionandotherenvironmentaldeterrents(威慑)continue
A、Itincreasedthestudents’whitebloodcellcount.B、Itincreasedsomestudents’energylevel.C、Itimprovedthestudents’abi
Truancy(逃学)sweepsaroundBritainrecentlyrevealedthousandsofchildrenmissedschool—andturnedupsomeridiculousexcuses,
Youmightaskwhyitisthatwomendecidedtogoafterjobsinevergreaternumbers.Youmightequallyaskwhynot.Theideaof
A、Helpthemanplanastudentrally.B、Usethestudentparkinglot.C、Makeadonationtosupportthegroup.D、Signapetition.D
Internationaleconomiclinkshavebecometighterandtighter,__________________________.(正对世界经济、经济、和社会的发展产生着重要影响)
Packagingisthedesignandproductionofphysicalcontainerforaproduct,whichinfactbecomesapartoftotalutilityofthe
随机试题
瘀血(congestion)
下列关于对比剂的叙述,错误的是
虚劳的治疗,除药物之外还应注意
甲乙两国在大陆架边界问题上有严重的认识分歧,导致两国关系一度紧张,并且在国际上造成一定的负面影响,为了缓和局势,丙国为了促成甲乙之间的和平谈判,采取了一定的协助活动,但是没有提出任何解决争端的方案,也没有参加甲乙之间的谈判,对此,下列表述正确的有:
对于一个国家和民族来说,下列选项中的哪一项权利被认为是首要人权?()
某市工商局扣押了涉嫌无照经营的李某的一批商品,其中包括一些海产品。由于不宜保管,工商局不得不将这些海产品变卖,但受存放时间所限,导致货物价格较市场价偏低。关于该工商局的上述行为,以下表述正确的是:()
[2012年,第49题]图4.3-16所示起重机的平面构架,自重不计,且不计滑轮自重。已知:F=100kN,L=70cm,B、D、E为铰链连接。则支座A的约束力为()。
()是我国古代一部综合性的科学技术著作,有人也称其为一部百科全书式的著作。
=()
有以下程序:#include<stdio.h>voidfun(intn,int*s){intf1,t2;if(n==1||n==2)*s=1;else
最新回复
(
0
)