职称英语理工类阅读理解最后练习(3)
<p> <span word="Life">Life</span> <span word="Form">Form</span> <span word="Found">Found</span> <span word="on">on</span> <span word="Saturns">Saturns</span> <span word="Titan">Titan</span> <span word="Scientists">Scientists</span> <span word="say">say</span> <span word="they">they</span> <span word="have">have</span> <span word="discovered">discovered</span> <span word="hints">hints</span> <span word="of">of</span> <span word="alien">alien</span> <span word="life">life</span>1 <span word="on">on</span> <span word="the">the</span> <span word="Saturns">Saturns</span> <span word="moon">moon</span>2. <span word="The">The</span> <span word="discovery">discovery</span> <span word="of">of</span> <span word="a">a</span> <span word="sort">sort</span> <span word="of">of</span> <span word="life">life</span> <span word="was">was</span> <span word="announced">announced</span> <span word="after">after</span> <span word="researchers">researchers</span> <span word="at">at</span> <span word="the">the</span> <span word="US">US</span> <span word="space">space</span> <span word="agency">agency</span>,<span word="NASA">NASA</span>3,<span word="analyzed">analyzed</span> <span word="data">data</span> <span word="from">from</span> <span word="spacecraft">spacecraft</span> <span word="Cassini">Cassini</span>4,<span word="which">which</span> <span word="pointed">pointed</span> <span word="to">to</span>,<span word="the">the</span> <span word="existence">existence</span> <span word="of">of</span> <span word="methane">methane</span>-<span word="based">based</span> <span word="form">form</span> <span word="of">of</span> <span word="life">life</span> <span word="on">on</span> <span word="Saturns">Saturns</span> <span word="biggest">biggest</span> <span word="moon">moon</span>. <span word="They">They</span> <span word="argue">argue</span> <span word="that">that</span> <span word="hydrogen">hydrogen</span> <span word="gets">gets</span> <span word="absorbed">absorbed</span> <span word="before">before</span> <span word="hitting">hitting</span> <span word="Titans">Titans</span> <span word="planet">planet</span>-<span word="like">like</span> <span word="surface">surface</span> <span word="covered">covered</span> <span word="with">with</span> <span word="methane">methane</span> <span word="lakes">lakes</span> <span word="and">and</span> <span word="rivers">rivers</span>. <span word="This">This</span>,<span word="they">they</span> <span word="say">say</span>,<span word="points">points</span> <span word="to">to</span> <span word="the">the</span> <span word="existence">existence</span> <span word="of">of</span> <span word="somebugs">somebugs</span>5 <span word="consuming">consuming</span> <span word="the">the</span> <span word="hydrogen">hydrogen</span> <span word="at">at</span> <span word="the">the</span> <span word="surface">surface</span> <span word="of">of</span> <span word="the">the</span> <span word="moon">moon</span> <span word="less">less</span> <span word="than">than</span> <span word="half">half</span> <span word="the">the</span> <span word="size">size</span> <span word="of">of</span> <span word="the">the</span> <span word="Earth">Earth</span>. <span word="To">To</span> <span word="date">date</span>,<span word="scientists">scientists</span> <span word="have">have</span> <span word="not">not</span> <span word="yet">yet</span> <span word="detected">detected</span> <span word="this">this</span> <span word="form">form</span> <span word="of">of</span> <span word="life">life</span> <span word="anywhere">anywhere</span>,<span word="though">though</span> <span word="there">there</span> <span word="are">are</span> <span word="liquid">liquid</span>-<span word="water">water</span>-<span word="based">based</span> <span word="microorganisms">microorganisms</span> <span word="on">on</span> <span word="Earth">Earth</span> <span word="that">that</span> <span word="grow">grow</span> <span word="well">well</span> <span word="on">on</span> <span word="methane">methane</span> <span word="or">or</span> <span word="produce">produce</span> <span word="it">it</span> <span word="as">as</span> <span word="a">a</span> <span word="waste">waste</span> <span word="product">product</span>. <span word="On">On</span> <span word="Titan">Titan</span>, <span word="where">where</span> <span word="temperatures">temperatures</span> <span word="are">are</span> <span word="around">around</span> 90 <span word="Kelvin">Kelvin</span>6,<span word="a">a</span> <span word="methanebased">methanebased</span> <span word="organism">organism</span> <span word="would">would</span> <span word="have">have</span> <span word="to">to</span> <span word="use">use</span> <span word="a">a</span> <span word="substance">substance</span> <span word="that">that</span> <span word="is">is</span> <span word="liquid">liquid</span> <span word="as">as</span> <span word="its">its</span> <span word="medium">medium</span> <span word="for">for</span> <span word="living">living</span> <span word="processes">processes</span>, <span word="but">but</span> <span word="not">not</span> <span word="water">water</span> <span word="itself">itself</span>. <span word="Water">Water</span> <span word="is">is</span> <span word="frozen">frozen</span> <span word="solid">solid</span> <span word="on">on</span> <span word="Titans">Titans</span> <span word="surface">surface</span> <span word="and">and</span> <span word="much">much</span> <span word="too">too</span> <span word="cold">cold</span> <span word="to">to</span> <span word="support">support</span> <span word="life">life</span> <span word="as">as</span> <span word="we">we</span> <span word="know">know</span> <span word="it">it</span>. <span word="The">The</span> <span word="absence">absence</span> <span word="of">of</span> <span word="detectable">detectable</span> <span word="acetylene">acetylene</span> <span word="on">on</span> <span word="the">the</span> <span word="Titans">Titans</span> <span word="surface">surface</span> <span word="can">can</span> <span word="very">very</span> <span word="well">well</span> <span word="have">have</span> <span word="a">a</span> <span word="non">non</span>-<span word="biological">biological</span> <span word="explanation">explanation</span>,<span word="said">said</span> <span word="Mark">Mark</span> <span word="Allen">Allen</span>,<span word="a">a</span> <span word="principal">principal</span> <span word="investigator">investigator</span>7 <span word="of">of</span> <span word="the">the</span> <span word="NASA">NASA</span> <span word="Titan">Titan</span> <span word="team">team</span>. 词汇： <span word="methane">methane</span> <span word="n">n</span>.甲烷，沼气 <span word="acetylene">acetylene</span> <span word="n">n</span>.乙炔 <span word="conservatism">conservatism</span> <span word="n">n</span>.保守主义,守旧 1.<span word="hints">hints</span> <span word="of">of</span> <span word="alien">alien</span> <span word="life">life</span>：外星生命迹象。 3.<span word="NASA">NASA</span>：美国国家航空航天局的缩写，全称是： <span word="National">National</span> <span word="Aeronautics">Aeronautics</span> <span word="and">and</span> <span word="Space">Space</span> <span word="Administration">Administration</span>。 5.<span word="bugs">bugs</span>：微生物。非正式口语表达，所以使用了引号。 7.<span word="principal">principal</span> <span word="investigator">investigator</span>：研究项目负责人 练习： <span word="A">A</span> <span word="They">They</span> <span word="have">have</span> <span word="found">found</span> <span word="a">a</span> <span word="new">new</span> <span word="moon">moon</span> <span word="orbiting">orbiting</span> <span word="Saturn">Saturn</span>. <span word="C">C</span> <span word="They">They</span> <span word="have">have</span> <span word="found">found</span> <span word="methane">methane</span>-<span word="based">based</span> <span word="life">life</span> <span word="on">on</span> <span word="Titan">Titan</span>. 2. <span word="What">What</span> <span word="do">do</span> <span word="scientists">scientists</span> <span word="say">say</span> <span word="about">about</span> <span word="Titan">Titan</span>? <span word="B">B</span> <span word="There">There</span> <span word="is">is</span> <span word="acetylene">acetylene</span> <span word="there">there</span>. <span word="D">D</span> <span word="Rivers">Rivers</span> <span word="and">and</span> <span word="lakes">lakes</span> <span word="there">there</span> <span word="contain">contain</span> <span word="life">life</span> <span word="formls">formls</span>. <span word="A">A</span> <span word="Water">Water</span>-<span word="based">based</span> <span word="life">life</span>. <span word="C">C</span> <span word="Liquid">Liquid</span>-<span word="water">water</span>-<span word="based">based</span> <span word="microorganisms">microorganisms</span>. 4. <span word="What">What</span> <span word="can">can</span> <span word="be">be</span> <span word="inferred">inferred</span> <span word="from">from</span> <span word="what">what</span> <span word="Allen">Allen</span> <span word="said">said</span>? <span word="B">B</span> <span word="Scientists">Scientists</span> <span word="all">all</span> <span word="agree">agree</span> <span word="that">that</span> <span word="there">there</span> <span word="is">is</span> <span word="life">life</span> <span word="on">on</span> <span word="Titan">Titan</span>. <span word="D">D</span> <span word="Scientists">Scientists</span> <span word="all">all</span> <span word="agree">agree</span> <span word="that">that</span> <span word="a">a</span> <span word="non">non</span>-<span word="biological">biological</span> <span word="chemical">chemical</span> <span word="reaction">reaction</span> <span word="is">is</span> <span word="a">a</span> <span word="possible">possible</span> <span word="explanation">explanation</span>. <span word="A">A</span> <span word="Earthlike">Earthlike</span> <span word="Living">Living</span> <span word="Beings">Beings</span> <span word="Found">Found</span> <span word="on">on</span> <span word="Titan">Titan</span>. <span word="C">C</span> <span word="Titan">Titan</span>,<span word="a">a</span> <span word="New">New</span> <span word="Satellite">Satellite</span> <span word="Found">Found</span>. 答案与题解： 2.<span word="A">A</span>根据第二段<span word="Scientists">Scientists</span> <span word="have">have</span> <span word="reportedly">reportedly</span> <span word="discovered">discovered</span> <span word="clues">clues</span> <span word="showing">showing</span> <span word="primitive">primitive</span> <span word="alien">alien</span> <span word="beings">beings</span> <span word="are">are</span> <span word="breathing">breathing</span> <span word="in">in</span> <span word="Titans">Titans</span> <span word="dense">dense</span> <span word="atmosphere">atmosphere</span> <span word="filled">filled</span> <span word="with">with</span> <span word="hydrogen">hydrogen</span>.，说明土卫六有生命迹象。因此<span word="A">A</span>是答案。 4.<span word="A">A</span>科学家至今对土卫六是否存在生物有不同的观点和解释。<span word="Allen">Allen</span> 说要做出土卫六上有生 5.<span word="D">D</span>该短文的主题是，科学家在土卫六上发现了一种与地球生物不同的生命形式的迹象，即以甲烷为生命基础呼吸氢气的生物，但科学家还未能最后验证这一发现。第四段中的一个句子能够揭示该短文的主题：<span word="If">If</span> <span word="these">these</span> <span word="signs">signs</span> <span word="do">do</span> <span word="turn">turn</span> <span word="out">out</span> <span word="to">to</span> <span word="be">be</span> <span word="a">a</span> <span word="sign">sign</span> <span word="of">of</span> <span word="life">life</span>, <span word="it">it</span> <span word="would">would</span> <span word="bedoubly">bedoubly</span> <span word="exciting">exciting</span> <span word="because">because</span> <span word="it">it</span> <span word="would">would</span> <span word="represent">represent</span> <span word="a">a</span> <span word="second">second</span> <span word="form">form</span> <span word="of">of</span> <span word="life">life</span> <span word="independent">independent</span> <span word="from">from</span> <span word="water">water</span>-<span word="based">based</span> <span word="life">life</span> <span word="on">on</span> <span word="Earth">Earth</span>. </p>
页:
[1]