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
Effects of Environmental Pollution Scientists watched closely last spring as a haze of pollution, which had been tracked by sate
Effects of Environmental Pollution Scientists watched closely last spring as a haze of pollution, which had been tracked by sate
admin
2009-06-15
91
问题
Effects of Environmental Pollution
Scientists watched closely last spring as a haze of pollution, which had been tracked by satellite as it crossed the Pacific Ocean, settled over a large swath of North America from Calgary, Canada, into Arizona. Now it appears that, for the first time. researchers on both sides of the Pacific took detailed measurements of the same plume, a cloud that contained Gobi desert dust as well as hydrocarbons from industrial pollution.
Heather Price, a University of Washington doctoral student in chemistry, found that the amount of light reflected by the particles in the air was more than 550 per cent greater than normal for that time of year. The mass of Asian air 4 contained elevated levels of all pollutants measured. Price said, "but the only thing that came close to being alarming was the level of particulate matte."
The haze that settled across the western part of the country was widely reported by the news media, and it was measured as far inland as the ski slopes of Aspen, Colo.
Readings on the western side of the Pacific came from the Aerosol Characterization Experiments, a project aimed at understanding how particles in the atmosphere affect Earth’s climate. Additional measurements were taken in the same region at the same time under a project sponsored by the National Aeronautics and Space Administration.
Knowing the pollution was approaching Washington state, Price loaded sensing equipment aboard a rented Beechcraft on April 14 and flew to Neah Bay on the state’s Northwest coast. Taking samples at various levels from 15, 000 feet to 20, 000 feet in altitude, she monitored quantities of dust, ozone, carbon monoxide and hydrocarbons. "From my copilot’s seat, the dust was thick enough to see with the naked eye." Price said.
Now she’s trying to correlate her findings with those of the two research teams operating on the other side of the Pacific, where at one point the pollution plume was larger than Japan. The huge size of the cloud showed up clearly in satellite images that gave Price plenty of warning the haze was on its way. "You can see these two blobs coming out of the deserts of Mongolia and growing over Asia, then getting swept out over the ocean and finally setting over North America," she said. She intends to continue measuring air samples off the Washington coast and will be looking for air masses with evidence of pollution originating somewhere other than Asia. "We’d like to see if we can get a signature of pollution coming from Europe because computer models suggest that European sources also can be transported across the Pacific," she said. "However, we expect that sources in Europe will contribute less than Asian sources."
haze n. 霾;烟雾
plume n. 羽状物
pollutant n. 污染物
particulate n. 微粒,颗粒
carbon monoxide 一氧化碳
copilot n. (飞机)副驾驶员
blob n. 粘乎乎的一团;黑糊糊的一堆
选项
A、of moisture over Calgary, Canada
B、developing over Pacific Ocean
C、of industrial pollutants
D、of desert dust and hydrocarbons
答案
D
解析
利用题干中的特征短语“haze of pollution"作为答案线索,同时注意备选项中的核心词 /特征词(A:Calgary, Canada;B:Pacific Ocean;C:industrial pollutants;D:desert dust and hydrocarbons),这样发现答案相关句:Scientists watched closely last spring as a haze of pollution,which had been tracked by satellite as it crossed the Pacific Ocean,settled over a large swath of North America from Calgary, Canada, into Arizona.(划线结构使用一般过去时态与题干的问题“现在是什么……烟云?”不符合)Now it appears that,for the first time,researchers on both sides of the Pacific took detailed measurements of the same plume (羽状物),a cloud that contained Gobi desert dust as well as hydrocarbons from industrial pollution.结合上下文判断“he same plume”就是问题所问的“the haze of pollution”,该划线结构直接解释了“the haze of pollution”是“既包含有戈壁沙漠的灰尘,也含有来自工业污染的碳氢化合物”,因此D是答案。
转载请注明原文地址:https://kaotiyun.com/show/QQUd777K
本试题收录于:
职称英语综合类A级题库职称英语分类
0
职称英语综合类A级
职称英语
相关试题推荐
IrishDolphinsMayHaveaUniqueDialectIrishscientistsmonitoringdolphinslivinginariverestuaryinthesouthwestof
Earthismentionedbytheauthorasanecessityforhydroponics.Oneoftheadvantagesofusinghydroponicsisincreasedpestic
Aboutonequarteroftheworkersinthecountryareemployedinfactories.
Iproposethatwediscussthisatthenextmeeting.
Thecouncilmeetingterminatedat2o’clock.
MicrochipResearchCenterCreatedAresearchcenterhasbeen【C1】______inthisFarEasterncountrytodevelopadvancedmicroc
StopSpamWhenIfirstgotane-mailaccounttenyearsago,Ireceivedcommunicationsonlyfromfamily,friends,andcolleagu
MotherNatureShowsHerStrengthTornadoes(龙卷风)andheavythunderstormsmovedacrosstheGreatLakesandintoTrumbullCount
Naturalgasdidn’tbecometheleadingfueluntilAccordingtoparagraph3,energyconsumedinhomeheatingoverthenexttwode
AndersendiedonApril4,1875.Andersen’stalesnotonlytellstoriesbutalsoteachmorallessons.
随机试题
A、桃仁红花煎加减B、安神定志丸加琥珀、磁石、朱砂C、归脾汤加减D、苓桂术甘汤加减E、桂枝甘草龙骨牡蛎汤加味心阳不足型心悸治宜
苯甲酸钠的含量测定,《中华人民共和国药典》采用双相滴定法,其所用的溶剂体系为( )。
主要合金元素为铬和镍的奥氏体型不锈钢,其性能特点为()。
在下列出口货物或产品中,符合出口退税条件的有()。
总资产市值100万元,其中现金、股票各占40%、60%,当股票下跌10%时,采用固定投资比例战略的投资人应( )。
长江公司和大海公司均为增值税一般纳税人企业,适用的增值税税率为17%;所得税均采用债务法核算,适用的所得税税率均为25%,合并前,长江公司和大海公司是不具有关联关系的两个独立的公司。有关企业合并资料如下:(1)2010年12月20日,这两个公司达成
根据以下资料,回答下列问题。2011年,全国质量技术监督系统经费总支出412.94亿元。其中工资福利支出121.23亿元,商业和服务支出132.73亿元,对个人和家庭补助支出36.04亿元,基本建设支出和其他资本性支出等专项支出92.01亿元(
以日本首都圈、韩国首都圈和英国都市圈为代表,国外首都圈在形成发展过程中采取了制定明确系统的发展规划、设立跨行政区的管理机构、颁布各种法律法规保障规划实施、构建合理的区域职能分工、重视交通设施建设等措施,并取得了显著成效。这些都对中国首都圈的发展具有借鉴意义
Theyoungerperson’sattractiontostereoscannotbeexplainedonly______familiaritywithtechnology.
Twotruckswerereportedtohave______head-onyesterday.
最新回复
(
0
)