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
考研
A river’s colors hold clues to what flows in its water, from soft-green algae to yellow-brown mud. Human eyes might miss【B1】__
A river’s colors hold clues to what flows in its water, from soft-green algae to yellow-brown mud. Human eyes might miss【B1】__
admin
2022-02-15
71
问题
A river’s colors hold clues to what flows in its water, from soft-green algae to yellow-brown mud. Human eyes might miss【B1】________shifts in these shadings, but satellites can【B2】________them—and researchers can use them to track large-scale changes and【B3】________spot【B4】________of trouble.
A team led by University of Pittsburgh environmental scientist John R. Gardner analyzed 234,727 satellite images,【B5】________67,000 miles of U. S. rivers over 35 years. The researchers isolated the main light wavelength each river reflected,【B6】________ shifting colors into grids of numbers.
Gardner’s group found sediment-laden yellow (56 percent) and algal green (38 percent)【B7】________the country’s rivers. A third of them had changed color over the past few decades,【B8】________the fastest shifts often near sediment-trapping dams. This effect is clear and【B9】________
Western U.S. river colors【B10】________moved toward the blue end of the spectrum over time, suggesting they carried【B11】________sand and silt. But many rivers in the Northeast showed a "red shift" that made them appear more yellow, indicating lower water levels or【B12】________sediment. Gardner says this【B13】________suggests that regional factors, such as land-use patterns and watershed-management【B14】________, influence long-term river hue shifts.
"We also found very distinct【B15】________patterns," Gardner says. Many of the nation’s rivers turn yellower in spring or summer【B16】________peaking rainfall muddies the waters.【B17】________the timing also【B18】________geography and human activity such as【B19】________
Using satellites to gauge changes in river composition could warn scientists when environments begin to【B20】________balance, the researchers say.
【B2】
选项
A、conceive
B、explore
C、detect
D、discover
答案
[C]
解析
本题考查动词辨析。四个选项分别为[A]conceive“想象,构想,设想,怀孕”;[B]explore“探索”;[C]detect“探测”;[D]discover“发现”。根据对空格1的分析可知,人类的眼睛可能会错过这些阴影的细微变化,后面but引导了一个转折的句子,且空格2后面又指明了研究人员可以利用卫星追踪大规模变化,因此卫星可以探测到它们。故选项[C]正确。
转载请注明原文地址:https://kaotiyun.com/show/PnmZ777K
0
考研英语一
相关试题推荐
Hewaspunished______heshouldmakethesamemistakeagain.
Muchoftheworldshouldgoonadietin2014.Morethanathirdofadults【C1】______wereestimatedtobe【C2】______orobesein20
Muchoftheworldshouldgoonadietin2014.Morethanathirdofadults【C1】______wereestimatedtobe【C2】______orobesein20
Muchoftheworldshouldgoonadietin2014.Morethanathirdofadults【C1】______wereestimatedtobe【C2】______orobesein20
Muchoftheworldshouldgoonadietin2014.Morethanathirdofadults【C1】______wereestimatedtobe【C2】______orobesein20
Muchoftheworldshouldgoonadietin2014.Morethanathirdofadults【C1】______wereestimatedtobe【C2】______orobesein20
Ariver’scolorsholdcluestowhatflowsinitswater,fromsoft-greenalgaetoyellow-brownmud.Humaneyesmightmiss【B1】__
Ariver’scolorsholdcluestowhatflowsinitswater,fromsoft-greenalgaetoyellow-brownmud.Humaneyesmightmiss【B1】__
Ariver’scolorsholdcluestowhatflowsinitswater,fromsoft-greenalgaetoyellow-brownmud.Humaneyesmightmiss【B1】__
随机试题
根据《建设工程安全生产管理条例》的规定,出租的机械设备和施工机具及配件,应当具有()。
背景北方工程公司施工总承包了一项大型钢厂工程项目,工程范围包括土建工程、机械设备安装工程、蒸汽排风机安装工程、电气安装工程、自动化安装工程等。由于工期较紧,项目部编制了施工组织设计,对工程进度、质量、安全和文明施工管理进行了重点控制。施工过程中,
近年来,剧场、龟影院、礼堂成了火灾发生的频繁区域,那么当这些建筑设置在耐火等级为一、二级的多层民用建筑内时,应采用耐火极限不低于()h的防火隔墙和甲级防火门与其他区域分隔。
配送中心的功能现在也有分工越来越细的趋势,设施设备的配置除了要考虑需求外,还要考虑物流作业规模及作业批量等因素。()
孙中山的新三民主义与中共的革命纲领有原则性区别的根本原因是他们的()。
犯罪未遂,是已经着手实施犯罪,由于犯罪分子意志以外的原因而未得逞。根据以上定义,下列哪种情况属于犯罪未遂?()
阅读以下史料,并回答问题:大农上盐铁丞孔仅、咸阳言:“山海,天地之藏也,皆宜属少府,陛下不私,以属大农佐赋。愿募民自给费,因官器作煮盐,官与牢盆。浮食奇民欲擅管山海之货,以致富羡,役利细民。其沮事之议,不可胜听。敢私铸铁器煮盐者,钛左趾,没入其器
撰写实验研究报告需要注意哪些方面?
【B1】【B18】
Ican’tgo—foronething,Ihavenomoney,and______,Ihavetoomuchwork.
最新回复
(
0
)