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
2013-06-25
37
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 cool.
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 thpse blistering summer days." The project savings from cooling are 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 clean 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.
Which of the following statements is TRUE?
选项
A、Every year, Chicago spends about $ 4,000 on cooling the city.
B、The design of the garden on the City Hall specially takes into consideration the weight the roof can stand.
C、The Mayor urged the environmental department to look into rooftop gardens in Hamburg and build similar ones in America.
D、Heat islands mainly refer to those dark-colored rooftops which receive and retain heat and will not easily release the heat.
答案
B
解析
根据文章第7段可知,市政厅屋顶花园是精心建造而成的,可以避免屋顶渗漏,或是在土、雨和植物共同的重量之下坍塌,由此可知,屋顶花园的设计充分考虑到了屋顶能承受的重量,所以B正确。根据第6段“The project savings from cooling is about $4,000 a year on a new roof”可知4000美元是省下的费用,不是全部费用,故A不对。根据倒数第2段“Richard M.Daley,who urged theenvironmental department to look into…”,可知C项与文意不符。根据第4段可知“heat islands”指的是“dark surfaces in the city”,而“rooftops”只是其中的一种,所以D项表述有误。
转载请注明原文地址:https://www.kaotiyun.com/show/txn7777K
0
大学英语六级
相关试题推荐
A、Sheprefersthestadium.B、Sheagreeswiththeman.C、Thelightisn’tbrightenough.D、Thedininghallisn’tlargeenough.B
Whatthewisemansaidsuggeststhat______.Comparedwiththoseinsmalltowns,peopleinlargecitieshave______.
A、Thepresentsituationofemploymentispromising.B、Morestudentsdon’twanttohuntforjobsaftergraduation.C、Morestudent
CertainphrasesonecommonlyhearsamongAmericanscapturetheirdevotiontoindividualism:"Doyourownthing.""Ididitmywa
A、Manywelcometheideaofhavingmorebarsonboard.B、Manyprefertheferrytomaintainitspresentspeed.C、Somesuggestimpr
A、Becausetheyarenotaccustomedtoit.B、Becausetheyarenotpsychologicallypreparedforit.C、Becausetheirgenesdifferfr
Fullfacetransplantsarenolongersciencefictionfantasy,aleadingsurgeonhassaid,addingthattheyaretechnically【C1】___
Youcouldfillastorewithalltheenergydrinksnowavailable.Theypromisetomakepeoplefeelmoreenergeticandthinkmore
Youcouldfillastorewithalltheenergydrinksnowavailable.Theypromisetomakepeoplefeelmoreenergeticandthinkmore
随机试题
证券X的期望收益率为0.11,贝塔值是1.5,无风险收益率为0.05,市场期望收益率为0.09。根据资本资产定价模型,这个证券()。
A、30天B、9个月C、7周D、40天E、3个月丙型肝炎的平均潜伏期为
下列关于中国古代建筑木框架结构体系分类项内容说明正确的是()。
代销期限届满,原股东认购股票的数量未达到拟配售数量()的,发行人应当按照发行价并加算银行同期存款利息返还已经认购的股东。
客户张某给某商业银行信贷员小李出示了市科委颁发的获奖证书的复印件,小李据此签署了同意贷款的个人意见.小李的行为明显违反了()。
大伯:父亲:姑妈
A、 B、 C、 D、 A第一组的三个图,图形种类数是1、2、3,第二组图则是3、2、1。
以下关于堆文件的删除操作叙述错误的是______。A)堆文件的删除操作比较简单,在堆文件头存储它的最后一个磁盘块的地址B)先找到被删除记录所在的磁盘块,然后将该磁盘块读到内存缓冲区C)在缓冲区中删除记录,将缓冲区中修改后的磁盘块内容写回磁盘文件
Readthefollowingtextsfromanarticleinwhichfivepeopletalkedaboutenvironmentprotection.Forquestions61to65,match
ExpositionExpositioniswritingthatexplains.Mostofthebooksinuniversityli-brariesareexamplesofexposition.Alth
最新回复
(
0
)