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
75
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
Thestudentsaidtherewereafewpointsintheessayhe______impossibletocomprehend.
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】__
Ariver’scolorsholdcluestowhatflowsinitswater,fromsoft-greenalgaetoyellow-brownmud.Humaneyesmightmiss【B1】__
Ariver’scolorsholdcluestowhatflowsinitswater,fromsoft-greenalgaetoyellow-brownmud.Humaneyesmightmiss【B1】__
随机试题
爱情的特点有()。
小腿中段火器伤初期处理时不正确的措施是
某咨询单位受当地政府委托,研究制定当地宏观经济政策与社会发展规划。咨询工程师在宏观经济运行的衡量过程中,拟采刚收入法对国内生产总值进行核算。该咨询工程师收集到2010年该地区的所有生产要素收入和问接收入数据如下:工资176亿元,利息5亿元,租金20亿元,利
碳同位素(碳13)()
在编制现金预算的过程中,可作为其编制依据的有()。
下列各种产品成本计算方法中,其成本计算期与财务报告期不一致的是()。
湖州毛笔产于安徽省,被誉为“笔中之冠”。()
商务洽谈人员拥有的权利大小主要取决于()。
Internetuseappearstocauseadropinpsychologicalhealth,accordingtoresearchatCarnegieMellonUniversity.Evenpeop
It’swidelyagreedthatgirlsgenerallystarttalkingearlierthanboys,andusemorecomplexvocabulary.Whenthey【C1】______sc
最新回复
(
0
)