六级冲刺练习阅读（145）
<p> <span word="The">The</span> <span word="Man">Man</span> <span word="Who">Who</span> <span word="Changed">Changed</span> <span word="the">the</span> <span word="World">World</span></p><p> <span word="Born">Born</span> <span word="in">in</span> 1879, <span word="in">in</span> <span word="Ulm">Ulm</span>, <span word="Germany">Germany</span>, <span word="Einstein">Einstein</span> <span word="was">was</span> <span word="two">two</span> <span word="years">years</span> <span word="old">old</span> <span word="when">when</span> <span word="his">his</span> <span word="parents">parents</span> <span word="moved">moved</span> <span word="to">to</span> <span word="Munich">Munich</span>. <span word="There">There</span> <span word="his">his</span> <span word="father">father</span> <span word="opened">opened</span> <span word="a">a</span> <span word="business">business</span> <span word="in">in</span> <span word="electrical">electrical</span> <span word="supplies">supplies</span>. <span word="As">As</span> <span word="a">a</span> <span word="boy">boy</span>, <span word="Einstein">Einstein</span> <span word="did">did</span> <span word="not">not</span> <span word="learn">learn</span> <span word="to">to</span> <span word="talk">talk</span> <span word="until">until</span> <span word="later">later</span> <span word="than">than</span> <span word="others">others</span> <span word="of">of</span> <span word="his">his</span> <span word="age">age</span>, <span word="and">and</span> <span word="in">in</span> <span word="his">his</span> <span word="early">early</span> <span word="childhood">childhood</span> <span word="he">he</span> <span word="was">was</span> <span word="not">not</span> <span word="considered">considered</span> <span word="especially">especially</span> <span word="bright">bright</span>. <span word="But">But</span> <span word="by">by</span> <span word="the">the</span> <span word="time">time</span> <span word="he">he</span> <span word="was">was</span> <span word="fourteen">fourteen</span> <span word="years">years</span> <span word="old">old</span>, <span word="he">he</span> <span word="had">had</span> <span word="recovered">recovered</span> <span word="from">from</span> <span word="a">a</span> <span word="slow">slow</span> <span word="start">start</span> <span word="to">to</span> <span word="the">the</span> <span word="extent">extent</span> <span word="that">that</span> <span word="he">he</span> <span word="had">had</span> <span word="taught">taught</span> <span word="himself">himself</span> <span word="advanced">advanced</span> <span word="mathematics">mathematics</span> <span word="from">from</span> <span word="textbooks">textbooks</span>. <span word="By">By</span> <span word="then">then</span> <span word="he">he</span> <span word="knew">knew</span> <span word="what">what</span> <span word="he">he</span> <span word="wanted">wanted</span> <span word="to">to</span> <span word="be">be</span> <span word="when">when</span> <span word="he">he</span> <span word="grew">grew</span> <span word="up">up</span>. <span word="He">He</span> <span word="wanted">wanted</span> <span word="to">to</span> <span word="be">be</span> <span word="a">a</span> <span word="physicist">physicist</span> <span word="and">and</span> <span word="devote">devote</span> <span word="himself">himself</span> <span word="to">to</span> <span word="research">research</span>.</p><p> <span word="The">The</span> <span word="Einsteins">Einsteins</span>, <span word="however">however</span>, <span word="could">could</span> <span word="not">not</span> <span word="afford">afford</span> <span word="to">to</span> <span word="pay">pay</span> <span word="for">for</span> <span word="the">the</span> <span word="advanced">advanced</span> <span word="education">education</span> <span word="young">young</span> <span word="Einstein">Einstein</span> <span word="needed">needed</span>. <span word="The">The</span> <span word="family">family</span> <span word="business">business</span> <span word="had">had</span> <span word="declined">declined</span>, <span word="and">and</span> <span word="they">they</span> <span word="were">were</span> <span word="forced">forced</span> <span word="to">to</span> <span word="leave">leave</span> <span word="Munich">Munich</span> <span word="to">to</span> <span word="live">live</span> <span word="in">in</span> <span word="Milan">Milan</span>, <span word="Italy">Italy</span>, <span word="where">where</span> <span word="they">they</span> <span word="had">had</span> <span word="relatives">relatives</span>. <span word="As">As</span> <span word="for">for</span> <span word="Albert">Albert</span>, <span word="the">the</span> <span word="family">family</span> <span word="did">did</span> <span word="manage">manage</span> <span word="to">to</span> <span word="send">send</span> <span word="him">him</span> <span word="to">to</span> <span word="a">a</span> <span word="technical">technical</span> <span word="school">school</span> <span word="in">in</span> <span word="Switzerland">Switzerland</span>, <span word="and">and</span> <span word="later">later</span> <span word="to">to</span> <span word="the">the</span> <span word="Federal">Federal</span> <span word="Institute">Institute</span> <span word="of">of</span> <span word="Technology">Technology</span> <span word="in">in</span> <span word="Zurich">Zurich</span>.</p><p> <span word="In">In</span> 1901, <span word="when">when</span> <span word="Einstein">Einstein</span> <span word="was">was</span> <span word="twenty">twenty</span>-<span word="two">two</span> <span word="years">years</span> <span word="old">old</span>, <span word="he">he</span> <span word="began">began</span> <span word="teaching">teaching</span>, <span word="and">and</span> <span word="in">in</span> 1902 <span word="he">he</span> <span word="went">went</span> <span word="to">to</span> <span word="work">work</span> <span word="as">as</span> <span word="a">a</span> <span word="patent">patent</span> <span word="office">office</span> <span word="examiner">examiner</span> <span word="in">in</span> <span word="Bern">Bern</span>. <span word="Now">Now</span> <span word="able">able</span> <span word="to">to</span> <span word="pay">pay</span> <span word="his">his</span> <span word="own">own</span> <span word="expenses">expenses</span>, <span word="he">he</span> <span word="continued">continued</span> <span word="his">his</span> <span word="schooling">schooling</span> <span word="at">at</span> <span word="the">the</span> <span word="University">University</span> <span word="of">of</span> <span word="Zurich">Zurich</span>, <span word="where">where</span> <span word="he">he</span> <span word="received">received</span> <span word="a">a</span> <span word="doctors">doctors</span> <span word="degree">degree</span> <span word="in">in</span> 1905. <span word="This">This</span> <span word="was">was</span> <span word="the">the</span> <span word="period">period</span> <span word="when">when</span> <span word="he">he</span> <span word="first">first</span> <span word="began">began</span> <span word="the">the</span> <span word="research">research</span> <span word="which">which</span> <span word="led">led</span> <span word="to">to</span> <span word="his">his</span> <span word="famous">famous</span> <span word="theory">theory</span> <span word="of">of</span> <span word="relativity">relativity</span>.</p><p> <span word="To">To</span> <span word="most">most</span> <span word="people">people</span> <span word="it">it</span> <span word="is">is</span> <span word="not">not</span> <span word="easy">easy</span> <span word="to">to</span> <span word="explain">explain</span> <span word="why">why</span> <span word="Einsteins">Einsteins</span> <span word="theory">theory</span> <span word="has">has</span> <span word="had">had</span> <span word="such">such</span> <span word="an">an</span> <span word="immense">immense</span> <span word="effect">effect</span> <span word="upon">upon</span> <span word="the">the</span> <span word="whole">whole</span> <span word="scientific">scientific</span> <span word="and">and</span> <span word="intellectual">intellectual</span> <span word="world">world</span>. <span word="After">After</span> <span word="its">its</span> <span word="formation">formation</span>, <span word="scientists">scientists</span> <span word="never">never</span> <span word="again">again</span> <span word="regarded">regarded</span> <span word="the">the</span> <span word="world">world</span> <span word="as">as</span> <span word="they">they</span> <span word="had">had</span> <span word="before">before</span>. <span word="The">The</span> <span word="theory">theory</span> <span word="set">set</span> <span word="forth">forth</span> <span word="new">new</span> <span word="and">and</span> <span word="far">far</span>-<span word="reaching">reaching</span> <span word="conclusions">conclusions</span> <span word="about">about</span> <span word="the">the</span> <span word="nature">nature</span> <span word="of">of</span> <span word="space">space</span>, <span word="time">time</span>, <span word="motion">motion</span>, <span word="mass">mass</span>, <span word="energy">energy</span>, <span word="and">and</span> <span word="the">the</span> <span word="relations">relations</span> <span word="governing">governing</span> <span word="all">all</span> <span word="these">these</span>. <span word="Basically">Basically</span> <span word="the">the</span> <span word="theory">theory</span> <span word="proposed">proposed</span>, <span word="among">among</span> <span word="other">other</span> <span word="things">things</span>, <span word="that">that</span> <span word="the">the</span> <span word="greatest">greatest</span> <span word="speed">speed</span> <span word="possible">possible</span> <span word="is">is</span> <span word="the">the</span> <span word="speed">speed</span> <span word="of">of</span> <span word="light">light</span>; <span word="that">that</span> <span word="the">the</span> <span word="rate">rate</span> <span word="of">of</span> <span word="a">a</span> <span word="clock">clock</span> <span word="moving">moving</span> <span word="through">through</span> <span word="space">space</span> <span word="will">will</span> <span word="decrease">decrease</span> <span word="as">as</span> <span word="its">its</span> <span word="speed">speed</span> <span word="increases">increases</span>; <span word="and">and</span> <span word="that">that</span> <span word="energy">energy</span> <span word="and">and</span> <span word="mass">mass</span> <span word="are">are</span> <span word="equal">equal</span> <span word="and">and</span> <span word="interchangeable">interchangeable</span>. <span word="This">This</span> <span word="latter">latter</span> <span word="claim">claim</span>, <span word="based">based</span> <span word="on">on</span> <span word="the">the</span> <span word="formula">formula</span> <span word="E">E</span> = <span word="mc">mc</span>2 <span word="was">was</span> <span word="later">later</span> <span word="proved">proved</span> <span word="by">by</span> <span word="atomic">atomic</span> <span word="fission">fission</span>, <span word="on">on</span> <span word="which">which</span> <span word="the">the</span> <span word="atomic">atomic</span> <span word="bomb">bomb</span> <span word="is">is</span> <span word="based">based</span>.</p>
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