2016考研英语阅读每日精选：金星上有活跃的火山运动

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    金星上有活跃的火山运动
    An international team of scientists has found some of the best evidence yet
that Venus, Earth's nearest neighbor, is volcanically1 active. In combing
through data from the European Space Agency's Venus Express mission, the
scientists found transient spikes2 in temperature at several spots on the
planet's surface. The hotspots, which were found to flash and fade over the
course of just a few days, appear to be generated by active flows of lava3 on
the surface.
    "We were able to show strong evidence that Venus is volcanically, and thus
internally, active today," said James W. Head, a geologist4 at Brown University
and co-author of a paper describing the new research. "This is a major finding
that helps us understand the evolution of planets like our own."
    The research is published online in Geophysical Research Letters.
    The hotspots turned up in thermal5 imaging taken by the Venus Express
spacecraft's Venus Monitoring Camera. The data showed spikes in temperature of
several hundred degreesFahrenheit6 in spots ranging in size from 1 square
kilometer to over 200 kilometers.
    The spots were clustered in a large rift7 zone called Ganiki Chasma. Rift
zones are formed by stretching of the crust by internal forces and hot magma
that rises toward the surface. Head and Russian colleague Mikhail Ivanov had
previously8 mapped the region as part of a globalgeologic9 map of Venus
generated from the Soviet10 Venera missions in the 1980s and U.S. Magellan
mission in the 1990s. The mapping work had shown that Ganiki Chasma was quite
young, geologically speaking, but just how young wasn't clear until now.
    "We knew that Ganiki Chasma was the result of volcanism that had occurred
fairly recently in geological terms, but we didn't know if it formed yesterday
or was a billion years old," Head said. "The active anomalies detected by Venus
Express fall exactly where we had mapped theserelatively11 young deposits and
suggest ongoing12 activity."
   
                    

kytwo

　　1 volcanically
    adv.火山似地，猛烈地
    参考例句：
    2 spikes
    n.穗( spike的名词复数 );跑鞋;(防滑)鞋钉;尖状物v.加烈酒于( spike的第三人称单数 );偷偷地给某人的饮料加入(更多)酒精(
或药物);把尖状物钉入;打乱某人的计划
    参考例句：
    a row of iron spikes on a wall 墙头的一排尖铁
    There is a row of spikes on top of the prison wall to prevent the prisoners
escaping. 监狱墙头装有一排尖钉，以防犯人逃跑。 来自《简明英汉词典》
    3 lava
    n.熔岩，火山岩
    参考例句：
    The lava flowed down the sides of the volcano.熔岩沿火山坡面涌流而下。
    His anger spilled out like lava.他的愤怒像火山爆发似的迸发出来。
    4 geologist
    n.地质学家
    参考例句：
    The geologist found many uncovered fossils in the
valley.在那山谷里，地质学家发现了许多裸露的化石。
    He was a geologist,rated by his cronies as the best in the
business.他是一位地质学家，被他的老朋友们看做是这门行当中最好的一位。
    　　5 thermal
    adj.热的，由热造成的;保暖的
    参考例句：
    They will build another thermal power station.他们要另外建一座热能发电站。
    Volcanic activity has created thermal springs and boiling mud
pools.火山活动产生了温泉和沸腾的泥浆池。
    　　6 Fahrenheit
    n./adj.华氏温度;华氏温度计(的)
    参考例句：
    He was asked for the boiling point of water in
Fahrenheit.他被问到水的沸点是华氏多少度。
    The thermometer reads 80 degrees Fahrenheit.寒暑表指出华氏80度。
    　　7 rift
    n.裂口，隙缝，切口;v.裂开，割开，渗入
    参考例句：
    He was anxious to mend the rift between the two men.他急于弥合这两个人之间的裂痕。
    The sun appeared through a rift in the clouds.太阳从云层间隙中冒出来。
    　　8 previously
    adv.以前，先前(地)
    参考例句：
    The bicycle tyre blew out at a previously damaged
point.自行车胎在以前损坏过的地方又爆开了。
    Let me digress for a moment and explain what had happened
previously.让我岔开一会儿，解释原先发生了什么。
    　　9 geologic
    adj.地质的
    参考例句：
    The Red Sea is a geologic continuation of the valley.红海就是一个峡谷在地质上的继续发展。
    Delineation of channels is the first step of geologic
evaluation.勾划河道的轮廓是地质解译的第一步。
    10 Soviet
    adj.苏联的，苏维埃的;n.苏维埃
    参考例句：
    Zhukov was a marshal of the former Soviet Union.朱可夫是前苏联的一位元帅。
    Germany began to attack the Soviet Union in 1941.德国在1941年开始进攻苏联。
    11 relatively
    adv.比较...地，相对地
    参考例句：
    The rabbit is a relatively recent introduction in
Australia.兔子是相对较新引入澳大利亚的物种。
    The operation was relatively painless.手术相对来说不痛。
    　　12 ongoing
    adj.进行中的，前进的
    参考例句：
    The problem is ongoing.这个问题尚未解决。
    The issues raised in the report relate directly to Age Concern's ongoing
work in this area.报告中提出的问题与“关心老人”组织在这方面正在做的工作有直接的关系。