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
2009-08-19
87
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.
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/PlpK777K
0
大学英语六级
相关试题推荐
Wearenowabouttoclosethemarketingconference.Weowethankstoeverymemberofstaffwhomadetheconferencea【T1】______.W
说明:假设你是王亮,请用下面提供的信息写一封自荐信。时间:3月12日。内容:1.写信原因:在网上看到TotalTrade公司招聘销售经理;2.自我介绍:营销专业大学毕业,擅长与人沟通等;3.自我推荐:简要介绍自己的才能、经验以及对公司的了
Amancannotbereallyhappyifwhatheenjoysdoingisignoredbysocietyasofnoimportance.
Whenyouarewritingbusinessletters,youneedtonoticethefollowingtips:LimitThemtoOnePageBydefinition,busines
MostofusgrowuptakingcertainthingsforgrantedWetendtoassumethatexpertsandreligiousleaderstellus"thetruth".W
Airlinecompaniesareresponsiblefortransportingyourluggage.Ifyoucannotrecoveritatthepointofarrival,youmustinfo
ScienceFictionAmongthemostpopularbooksbeingwrittentodayarethosewhichareusuallyclassifiedasscienceficti
A、HeandAndreahaveprovedtobeaperfectmatch.B、Hechangedhismindaboutmarriageunexpectedly.C、Hedeclaredthathewoul
FedExCorpoffersintegratedbusinessservicesthroughanetworkofsubsidiariesoperatingindependently.FedExiswell-knownf
随机试题
情景交融是意境创造的()
A.钙B.磷C.镁D.锌E.铁对神经、肌肉的兴奋性有镇静作用的是
审刑院
某工程的时标网络计划如图2一1所示。工程进展到第5个月底、第10个月底和第15个月底时,分别检查了工程进度,相应地绘制了三条实际进度前锋线,如图中的点划线所示。注:1.图中每根箭线上方数值为该项工作每月计划投资。2.图下方格内(1)栏
巴塞尔委员会建议计算风险价值时的持有期长度为()个营业日。
中国公民李某是境内甲非上市公司的个人股东兼董事,但未在甲公司任职。2015年相关业务如下:(1)1月李某从甲公司借款10万元,年末未归还也未用于甲公司生产经营活动;12月从甲公司分得股息5万元。(2)12月李某领取甲公司董事费收入12万元,从中
下列判断正确的有()。(1)“十一五”期间该地区每年“科研基建费”均多于“其他费用”(2)“十一五”期间该地区专业技术人员人均财政科技拨款逐年增加(3)“十一五”期间该地区财政科技拨款总和不到3500亿元
论述卢梭的儿童教育观。
下面程序段的执行结果是()。main(){inta[5][5],i,j;for(i=1;i<5;i++)for(j=1;j<5;j++)a[i][j]=(i<j)*(j/i);for(i=1;i<5;i
【B1】【B9】
最新回复
(
0
)