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
30
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.
【B18】
选项
A、accounts for
B、depends on
C、approves of
D、deals with
答案
[B]
解析
本题考查动词词组辨析。四个选项分别为[A]accounts for“对……负有责任,对……作出解释,说明……的原因,(比例)占”;[B]depends on“依赖,依靠,取决于”;[C]approves of“赞成”;[D]deals with“处理”。该空格所在句子的意思承接上文,即河流颜色变化的时间不止受季节影响,还受到地理因素和人类活动的影响,结合所给选项,depends on意为“依赖,依靠,取决于”,符合句意。故选项[B]正确。
转载请注明原文地址:https://kaotiyun.com/show/6nmZ777K
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
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
采用评标价法对投标书的评审是以( )的标书为最优。
在篮球比赛中,掷界外球时,当裁判递交球后,掷界外球球员必须在几秒内将球掷入场内,否则应判为违例?()
有关毛细血管瘤的叙述,下列哪项是错误的
A.醋酸纤维素B.乙醇C.聚氧化乙烯(PEO)D.氯化钠E.1.5%.CMC-Na溶液
在工业生产中,监测的物理参数的变化直接反映了危险场所的危险性大小和预警级别。反映连续的预警信息波动趋势的预警信号输出属于()预警。
在下列建设工程项目目标控制方法中,可用来综合控制工程进度和工程造价的方法有()。
在我国,即期汇票的出票日为2012年2月1日,此汇票的持票人对出票人行使追索权利的最后期限是()。
甲企业有一种已经使用15年的注册商标。根据历史资料,该企业近5年使用这一商标的产品比同类产品的价格每件高1.1元,该企业每年生产150万件。该商标目前在市场上有良好趋势,产品基本上供不应求。根据预测估计,如果在生产能力足够的情况下,这种商标产品每年生产20
以下选项中不属于C语言标识符的是
Visualmemoryhelpsusrecallaplacewehavebeento.Verbalmemoryhelpsusroadwordswehaveneverheard.
最新回复
(
0
)