2015考研英语阅读理解精选20篇(第三篇)
<p> 远离故土的家 <span word="The">The</span> <span word="existence">existence</span> <span word="of">of</span> <span word="the">the</span> <span word="most">most</span> <span word="Earthlike">Earthlike</span> <span word="planet">planet</span> <span word="yet">yet</span> <span word="has">has</span> <span word="just">just</span> <span word="been">been</span> <span word="confirmed">confirmed</span> <span word="Dec">Dec</span> 10<span word="th">th</span> 2011 | <span word="from">from</span> <span word="the">the</span> <span word="print">print</span> <span word="edition">edition</span> <span word="ONE">ONE</span> <span word="of">of</span> <span word="the">the</span> <span word="more">more</span> <span word="memorable">memorable</span> <span word="slogans">slogans</span> <span word="to">to</span> <span word="come">come</span> <span word="out">out</span> <span word="of">of</span> <span word="the">the</span> <span word="climate">climate</span>-<span word="change">change</span> <span word="talks">talks</span> <span word="in">in</span> <span word="Durban">Durban</span> <span word="over">over</span> <span word="the">the</span> <span word="past">past</span> <span word="few">few</span> <span word="days">days</span> <span word="is">is</span>: <span word="there">there</span> <span word="is">is</span> <span word="no">no</span> <span word="planet">planet</span> <span word="B">B</span>. <span word="But">But</span> <span word="what">what</span> <span word="if">if</span> <span word="there">there</span> <span word="were">were</span>? <span word="Over">Over</span> <span word="the">the</span> <span word="past">past</span> <span word="couple">couple</span> <span word="of">of</span> <span word="decades">decades</span> <span word="astronomers">astronomers</span> <span word="have">have</span> <span word="logged">logged</span> <span word="thousands">thousands</span> <span word="of">of</span> <span word="so">so</span>-<span word="called">called</span> <span word="exoplanetsworlds">exoplanetsworlds</span> <span word="which">which</span> <span word="orbit">orbit</span> <span word="stars">stars</span> <span word="other">other</span> <span word="than">than</span> <span word="the">the</span> <span word="sun">sun</span>. <span word="On">On</span> <span word="December">December</span> 5<span word="th">th</span> <span word="the">the</span> <span word="scientists">scientists</span> <span word="in">in</span> <span word="charge">charge</span> <span word="of">of</span> <span word="Kepler">Kepler</span>, <span word="a">a</span> <span word="space">space</span> <span word="telescope">telescope</span> <span word="designed">designed</span> <span word="to">to</span> <span word="look">look</span> <span word="for">for</span> <span word="such">such</span> <span word="planets">planets</span>, <span word="confirmed">confirmed</span> <span word="their">their</span> <span word="instruments">instruments</span> <span word="discovery">discovery</span> <span word="of">of</span> <span word="its">its</span> <span word="first">first</span> <span word="Earthlike">Earthlike</span> <span word="world">world</span>. <span word="It">It</span> <span word="is">is</span> <span word="dubbed">dubbed</span>, <span word="rather">rather</span> <span word="unromantically">unromantically</span>, <span word="Kepler">Kepler</span> 22<span word="b">b</span>. <span word="The">The</span> <span word="existence">existence</span> <span word="of">of</span> <span word="this">this</span> <span word="planet">planet</span>, <span word="which">which</span> <span word="circles">circles</span> <span word="a">a</span> <span word="star">star</span> 600 <span word="light">light</span>-<span word="years">years</span> <span word="away">away</span>, <span word="in">in</span> <span word="the">the</span> <span word="constellation">constellation</span> <span word="of">of</span> <span word="Lyra">Lyra</span>, <span word="had">had</span> <span word="previously">previously</span> <span word="been">been</span> <span word="suspected">suspected</span>. <span word="Kepler">Kepler</span>, <span word="which">which</span> <span word="belongs">belongs</span> <span word="to">to</span> <span word="NASA">NASA</span>, <span word="Americas">Americas</span> <span word="space">space</span> <span word="agency">agency</span>, <span word="works">works</span> <span word="by">by</span> <span word="observing">observing</span> <span word="dips">dips</span> <span word="in">in</span> <span word="a">a</span> <span word="stars">stars</span> <span word="brightness">brightness</span> <span word="as">as</span> <span word="a">a</span> <span word="planet">planet</span> <span word="passes">passes</span> <span word="in">in</span> <span word="front">front</span> <span word="of">of</span> <span word="it">it</span>. <span word="It">It</span> <span word="flags">flags</span> <span word="likely">likely</span> <span word="looking">looking</span> <span word="reductions">reductions</span> <span word="as">as</span> <span word="candidate">candidate</span> <span word="planets">planets</span>, <span word="of">of</span> <span word="which">which</span> <span word="Kepler">Kepler</span> 22<span word="b">b</span> <span word="was">was</span> <span word="one">one</span>. <span word="But">But</span> <span word="three">three</span> <span word="passes">passes</span> <span word="are">are</span> <span word="needed">needed</span> <span word="to">to</span> <span word="confirm">confirm</span> <span word="a">a</span> <span word="planets">planets</span> <span word="existence">existence</span>, <span word="and">and</span> <span word="Kepler">Kepler</span> 22<span word="b">b</span> <span word="has">has</span> <span word="now">now</span> <span word="passed">passed</span> <span word="this">this</span> <span word="test">test</span>. <span word="Crucially">Crucially</span>, <span word="it">it</span> <span word="orbits">orbits</span> <span word="well">well</span> <span word="within">within</span> <span word="its">its</span> <span word="stars">stars</span> <span word="Goldilocks">Goldilocks</span> <span word="zone">zone</span>: <span word="neither">neither</span> <span word="too">too</span> <span word="close">close</span> <span word="nor">nor</span> <span word="too">too</span> <span word="far">far</span> <span word="away">away</span> <span word="for">for</span> <span word="liquid">liquid</span> <span word="water">water</span> <span word="to">to</span> <span word="exist">exist</span> <span word="on">on</span> <span word="its">its</span> <span word="surface">surface</span>. <span word="It">It</span> <span word="joins">joins</span> <span word="two">two</span> <span word="other">other</span> <span word="Earthlike">Earthlike</span> <span word="planetsGliese">planetsGliese</span> 581<span word="d">d</span> <span word="and">and</span> <span word="HD">HD</span> 85512 <span word="bdiscovered">bdiscovered</span> <span word="by">by</span> <span word="another">another</span> <span word="instrument">instrument</span> <span word="within">within</span> <span word="the">the</span> <span word="past">past</span> <span word="few">few</span> <span word="years">years</span>. <span word="In">In</span> <span word="truth">truth</span>, <span word="the">the</span> <span word="term">term</span> <span word="Earthlike">Earthlike</span> <span word="is">is</span> <span word="a">a</span> <span word="stretch">stretch</span>. <span word="Kepler">Kepler</span> 22<span word="b">b</span> <span word="has">has</span> <span word="a">a</span> <span word="radius">radius</span> 2.4 <span word="times">times</span> <span word="that">that</span> <span word="of">of</span> <span word="Earth">Earth</span>, <span word="and">and</span> <span word="if">if</span> <span word="it">it</span> <span word="is">is</span> <span word="made">made</span> <span word="from">from</span> <span word="roughly">roughly</span> <span word="the">the</span> <span word="same">same</span> <span word="stuff">stuff</span> <span word="its">its</span> <span word="surface">surface</span> <span word="gravity">gravity</span> <span word="will">will</span> <span word="also">also</span> <span word="be">be</span> <span word="about">about</span> 2.4 <span word="times">times</span> <span word="as">as</span> <span word="strong">strong</span>. <span word="But">But</span> <span word="NASAs">NASAs</span> <span word="astronomers">astronomers</span> <span word="remain">remain</span> <span word="unsure">unsure</span> <span word="whether">whether</span> <span word="it">it</span> <span word="is">is</span> <span word="predominantly">predominantly</span> <span word="gaseous">gaseous</span>, <span word="liquid">liquid</span> <span word="or">or</span> <span word="solid">solid</span>. <span word="Nevertheless">Nevertheless</span>, <span word="Kepler">Kepler</span> 22<span word="b">b</span> <span word="is">is</span> <span word="the">the</span> <span word="most">most</span> <span word="promising">promising</span> <span word="exoplanet">exoplanet</span> <span word="yet">yet</span> <span word="found">found</span>. <span word="Unlike">Unlike</span> <span word="the">the</span> <span word="others">others</span>, <span word="which">which</span> <span word="skirt">skirt</span> <span word="the">the</span> <span word="edges">edges</span> <span word="of">of</span> <span word="their">their</span> <span word="stars">stars</span> <span word="Goldilocks">Goldilocks</span> <span word="zones">zones</span>, <span word="Kepler">Kepler</span> 22<span word="b">b</span> <span word="orbits">orbits</span> <span word="comfortably">comfortably</span> <span word="within">within</span> <span word="its">its</span> <span word="own">own</span>. <span word="NASAs">NASAs</span> <span word="researchers">researchers</span> <span word="reckon">reckon</span> <span word="its">its</span> <span word="surface">surface</span> <span word="temperature">temperature</span> <span word="is">is</span> <span word="about">about</span> 22<span word="C">C</span>, <span word="compared">compared</span> <span word="with">with</span> 15<span word="C">C</span> <span word="on">on</span> <span word="Earth">Earth</span>. <span word="Its">Its</span> <span word="parent">parent</span> <span word="star">star</span> <span word="is">is</span> <span word="similar">similar</span> <span word="to">to</span> <span word="the">the</span> <span word="sun">sun</span>, <span word="again">again</span> <span word="unlike">unlike</span> <span word="those">those</span> <span word="of">of</span> <span word="the">the</span> <span word="other">other</span> <span word="two">two</span> <span word="candidates">candidates</span>, <span word="both">both</span> <span word="of">of</span> <span word="which">which</span> <span word="orbit">orbit</span> <span word="cooler">cooler</span>, <span word="dimmer">dimmer</span> <span word="stars">stars</span>. <span word="Indeed">Indeed</span> <span word="Gliese">Gliese</span> 581<span word="ds">ds</span> <span word="parent">parent</span> <span word="is">is</span> <span word="a">a</span> <span word="red">red</span> <span word="dwarfthe">dwarfthe</span> <span word="tiniest">tiniest</span> <span word="stellar">stellar</span> <span word="species">species</span>. <span word="That">That</span> <span word="means">means</span> <span word="its">its</span> <span word="Goldilocks">Goldilocks</span> <span word="zone">zone</span> <span word="is">is</span> <span word="so">so</span> <span word="close">close</span> <span word="to">to</span> <span word="it">it</span> <span word="that">that</span> <span word="the">the</span> <span word="planet">planet</span> <span word="may">may</span> <span word="be">be</span> <span word="tidally">tidally</span> <span word="locked">locked</span>, <span word="as">as</span> <span word="the">the</span> <span word="moon">moon</span> <span word="is">is</span> <span word="to">to</span> <span word="the">the</span> <span word="Earth">Earth</span>. <span word="If">If</span> <span word="that">that</span> <span word="were">were</span> <span word="the">the</span> <span word="case">case</span>, <span word="one">one</span> <span word="side">side</span> <span word="of">of</span> <span word="Gliese">Gliese</span> 581<span word="d">d</span> <span word="would">would</span> <span word="be">be</span> <span word="permanently">permanently</span> <span word="lit">lit</span> <span word="while">while</span> <span word="the">the</span> <span word="other">other</span> <span word="experienced">experienced</span> <span word="unending">unending</span> <span word="darkness">darkness</span>. <span word="These">These</span> <span word="three">three</span> <span word="potentially">potentially</span> <span word="habitable">habitable</span> <span word="exoplanets">exoplanets</span> <span word="may">may</span> <span word="soon">soon</span> <span word="be">be</span> <span word="joined">joined</span> <span word="by">by</span> <span word="many">many</span> <span word="more">more</span>. <span word="In">In</span> <span word="the">the</span> <span word="two">two</span> <span word="and">and</span> <span word="a">a</span> <span word="half">half</span> <span word="years">years</span> <span word="since">since</span> <span word="its">its</span> <span word="launch">launch</span>, <span word="Kepler">Kepler</span> <span word="has">has</span> <span word="spotted">spotted</span> 2,326 <span word="candidate">candidate</span> <span word="planets">planets</span>. <span word="About">About</span> 650 <span word="others">others</span> <span word="have">have</span> <span word="been">been</span> <span word="discovered">discovered</span> <span word="by">by</span> <span word="other">other</span> <span word="instruments">instruments</span>. <span word="That">That</span> <span word="plethora">plethora</span> <span word="allows">allows</span> <span word="astronomers">astronomers</span> <span word="to">to</span> <span word="start">start</span> <span word="drawing">drawing</span> <span word="conclusions">conclusions</span> <span word="about">about</span> <span word="how">how</span> <span word="common">common</span> <span word="various">various</span> <span word="sorts">sorts</span> <span word="of">of</span> <span word="planets">planets</span> <span word="are">are</span>. <span word="Of">Of</span> <span word="Keplers">Keplers</span> <span word="haul">haul</span>, 9% <span word="seem">seem</span> <span word="to">to</span> <span word="be">be</span> <span word="of">of</span> <span word="a">a</span> <span word="similar">similar</span> <span word="size">size</span> <span word="to">to</span> <span word="Earth">Earth</span> ; <span word="a">a</span> <span word="further">further</span> 29% <span word="are">are</span> <span word="Super">Super</span> <span word="Earthsplanets">Earthsplanets</span> <span word="substantially">substantially</span> <span word="larger">larger</span> <span word="than">than</span> <span word="Earth">Earth</span> <span word="that">that</span> <span word="are">are</span> <span word="nevertheless">nevertheless</span> <span word="rocky">rocky</span>. <span word="Forty">Forty</span>-<span word="eight">eight</span> <span word="of">of</span> <span word="Keplers">Keplers</span> <span word="unconfirmed">unconfirmed</span> <span word="candidates">candidates</span> <span word="look">look</span> <span word="as">as</span> <span word="if">if</span> <span word="they">they</span> <span word="orbit">orbit</span> <span word="within">within</span> <span word="their">their</span> <span word="stars">stars</span> <span word="habitable">habitable</span> <span word="zones">zones</span>; <span word="of">of</span> <span word="those">those</span>, <span word="ten">ten</span> <span word="seem">seem</span> <span word="to">to</span> <span word="be">be</span> <span word="Earth">Earth</span>-<span word="sized">sized</span>. <span word="The">The</span> <span word="ultimate">ultimate</span> <span word="goal">goal</span>, <span word="of">of</span> <span word="course">course</span>, <span word="is">is</span> <span word="to">to</span> <span word="let">let</span> <span word="astronomers">astronomers</span> <span word="make">make</span> <span word="a">a</span> <span word="plausible">plausible</span> <span word="estimate">estimate</span> <span word="of">of</span> <span word="the">the</span> <span word="total">total</span> <span word="number">number</span> <span word="of">of</span> <span word="planets">planets</span> <span word="in">in</span> <span word="the">the</span> <span word="galaxy">galaxy</span>, <span word="of">of</span> <span word="the">the</span> <span word="number">number</span> <span word="that">that</span> <span word="could">could</span> <span word="conceivably">conceivably</span> <span word="support">support</span> <span word="life">life</span>, <span word="and">and</span> <span word="of">of</span> <span word="the">the</span> <span word="fraction">fraction</span> <span word="of">of</span> <span word="those">those</span> <span word="that">that</span> <span word="could">could</span> <span word="sustain">sustain</span> <span word="human">human</span> <span word="colonists">colonists</span>. <span word="If">If</span> <span word="only">only</span> <span word="a">a</span> <span word="few">few</span> <span word="of">of</span> <span word="Keplers">Keplers</span> <span word="possible">possible</span> <span word="Earthlike">Earthlike</span> <span word="planets">planets</span> <span word="turn">turn</span> <span word="out">out</span> <span word="to">to</span> <span word="be">be</span> <span word="real">real</span>, <span word="that">that</span> <span word="third">third</span> <span word="number">number</span> <span word="is">is</span> <span word="likely">likely</span> <span word="to">to</span> <span word="be">be</span> <span word="in">in</span> <span word="the">the</span> <span word="millions">millions</span>. <span word="Such">Such</span> <span word="knowledge">knowledge</span> <span word="will">will</span> <span word="mark">mark</span> <span word="an">an</span> <span word="historic">historic</span> <span word="transition">transition</span>, <span word="says">says</span> <span word="Chris">Chris</span> <span word="Lintott">Lintott</span>, <span word="an">an</span> <span word="astronomer">astronomer</span> <span word="at">at</span> <span word="Oxford">Oxford</span> <span word="University">University</span> <span word="who">who</span> <span word="is">is</span> <span word="giving">giving</span> <span word="the">the</span> <span word="Kepler">Kepler</span> <span word="team">team</span> <span word="a">a</span> <span word="hand">hand</span> <span word="with">with</span> <span word="the">the</span> <span word="data">data</span> <span word="analysis">analysis</span>, <span word="since">since</span> <span word="the">the</span> <span word="uncertainties">uncertainties</span> <span word="around">around</span> <span word="the">the</span> <span word="question">question</span> <span word="of">of</span> <span word="whether">whether</span> <span word="life">life</span> <span word="exists">exists</span> <span word="elsewhere">elsewhere</span> <span word="will">will</span> <span word="cease">cease</span> <span word="to">to</span> <span word="be">be</span> <span word="astronomical">astronomical</span> <span word="and">and</span> <span word="become">become</span> <span word="purely">purely</span> <span word="biological">biological</span> . <span word="Based">Based</span> <span word="on">on</span> <span word="the">the</span> <span word="preliminary">preliminary</span> <span word="data">data</span>, <span word="it">it</span> <span word="looks">looks</span> <span word="as">as</span> <span word="if">if</span> <span word="there">there</span> <span word="are">are</span> <span word="numerous">numerous</span> <span word="suitable">suitable</span> <span word="planets">planets</span>. <span word="The">The</span> <span word="science">science</span> <span word="of">of</span> <span word="exobiology">exobiology</span> <span word="may">may</span> <span word="soon">soon</span> <span word="cease">cease</span> <span word="to">to</span> <span word="be">be</span> <span word="an">an</span> <span word="oxymoron">oxymoron</span>.</p>
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