SAT写作素材——科学发明领域的重大事件
<p> <span word="SAT">SAT</span>考试的一个主要组成部分就是<span word="SAT">SAT</span>写作，而写作也常常是一件令人头疼的事情，尤其在文章中需要举例说明问题的时候，很多学生往往很苦恼，接下来我们来看<span word="SAT">SAT</span>写作中常用的例证素材科学发明领域发生的重大事件。</p><p> <span word="Early">Early</span>1300<span word="s">s</span>: <span word="Gunpowder">Gunpowder</span> <span word="first">first</span> <span word="used">used</span> <span word="in">in</span> <span word="Europe">Europe</span></p><p> <span word="Although">Although</span> <span word="gunpowder">gunpowder</span> <span word="is">is</span> <span word="believed">believed</span> <span word="to">to</span> <span word="have">have</span> <span word="been">been</span> <span word="invented">invented</span> <span word="in">in</span> <span word="China">China</span> <span word="as">as</span> <span word="early">early</span> <span word="as">as</span> <span word="the">the</span> <span word="ninth">ninth</span> <span word="century">century</span>, <span word="it">it</span> <span word="wasnt">wasnt</span> <span word="until">until</span> <span word="the">the</span> <span word="early">early</span> 1300<span word="s">s</span> <span word="that">that</span> <span word="it">it</span> <span word="was">was</span> <span word="first">first</span> <span word="used">used</span> <span word="in">in</span> <span word="battle">battle</span> <span word="in">in</span> <span word="Europe">Europe</span>. <span word="A">A</span> <span word="relatively">relatively</span> <span word="simple">simple</span> <span word="mixture">mixture</span> <span word="of">of</span> <span word="charcoal">charcoal</span>, <span word="sulfur">sulfur</span>, <span word="and">and</span> <span word="saltpeter">saltpeter</span>, <span word="gunpowder">gunpowder</span> <span word="has">has</span> <span word="been">been</span> <span word="making">making</span> <span word="the">the</span> <span word="worlds">worlds</span> <span word="wars">wars</span> <span word="more">more</span> <span word="deadly">deadly</span> <span word="ever">ever</span> <span word="since">since</span>.</p><p> 1522:<span word="First">First</span> <span word="circumnavigation">circumnavigation</span> <span word="of">of</span> <span word="the">the</span> <span word="globe">globe</span> <span word="completed">completed</span></p><p> <span word="In">In</span> 1519, <span word="Ferdinand">Ferdinand</span> <span word="Magellan">Magellan</span> <span word="and">and</span> <span word="a">a</span> <span word="crew">crew</span> <span word="of">of</span> 237 <span word="men">men</span> <span word="and">and</span> <span word="five">five</span> <span word="ships">ships</span> <span word="set">set</span> <span word="out">out</span> <span word="on">on</span> <span word="a">a</span> <span word="voyage">voyage</span> <span word="to">to</span> <span word="claim">claim</span> <span word="the">the</span> <span word="Spice">Spice</span> <span word="Islands">Islands</span> <span word="as">as</span> <span word="the">the</span> <span word="property">property</span> <span word="of">of</span> <span word="Spain">Spain</span>. <span word="Although">Although</span> <span word="Magellan">Magellan</span> <span word="himself">himself</span> <span word="was">was</span> <span word="killed">killed</span> <span word="while">while</span> <span word="trying">trying</span> <span word="to">to</span> <span word="convert">convert</span> <span word="a">a</span> <span word="native">native</span> <span word="Philippine">Philippine</span> <span word="chief">chief</span> <span word="to">to</span> <span word="Christianity">Christianity</span> <span word="in">in</span> 1521, <span word="one">one</span> <span word="ship">ship</span> <span word="and">and</span> <span word="the">the</span> <span word="remainder">remainder</span> <span word="of">of</span> <span word="his">his</span> <span word="crew">crew</span>, <span word="by">by</span> <span word="then">then</span> <span word="eighteen">eighteen</span> <span word="men">men</span>, <span word="completed">completed</span> <span word="the">the</span> <span word="voyage">voyage</span> <span word="around">around</span> <span word="the">the</span> <span word="world">world</span> <span word="and">and</span> <span word="returned">returned</span> <span word="to">to</span> <span word="Spain">Spain</span> <span word="on">on</span> <span word="September">September</span> 8, 1522.</p><p> 1859:<span word="Darwins">Darwins</span> <span word="Origin">Origin</span> <span word="of">of</span> <span word="Species">Species</span></p><p> <span word="Charles">Charles</span> <span word="Darwin">Darwin</span> <span word="shocked">shocked</span> <span word="the">the</span> <span word="world">world</span> <span word="with">with</span> <span word="his">his</span> <span word="theory">theory</span> <span word="of">of</span> <span word="evolution">evolution</span> <span word="as">as</span> <span word="proposed">proposed</span> <span word="in">in</span> <span word="Origin">Origin</span> <span word="of">of</span> <span word="Species">Species</span>. <span word="He">He</span> <span word="explained">explained</span> <span word="that">that</span>, <span word="over">over</span> <span word="time">time</span>, <span word="species">species</span> <span word="adapt">adapt</span> <span word="to">to</span> <span word="their">their</span> <span word="environment">environment</span> <span word="in">in</span> <span word="order">order</span> <span word="to">to</span> <span word="survive">survive</span> <span word="and">and</span> <span word="then">then</span> <span word="pass">pass</span> <span word="along">along</span> <span word="these">these</span> <span word="acquired">acquired</span> <span word="traits">traits</span> <span word="to">to</span> <span word="future">future</span> <span word="generations">generations</span> <span word="in">in</span> <span word="a">a</span> <span word="process">process</span> <span word="known">known</span> <span word="as">as</span> <span word="natural">natural</span> <span word="selection">selection</span>. <span word="Although">Although</span> <span word="his">his</span> <span word="ideas">ideas</span> <span word="are">are</span> <span word="widely">widely</span> <span word="accepted">accepted</span> <span word="today">today</span>, <span word="the">the</span> <span word="notion">notion</span> <span word="that">that</span> <span word="species">species</span> <span word="could">could</span> <span word="have">have</span> <span word="evolved">evolved</span> <span word="from">from</span> <span word="an">an</span> <span word="entirely">entirely</span> <span word="different">different</span> <span word="species">species</span> <span word="caused">caused</span> <span word="outrage">outrage</span> <span word="from">from</span> <span word="those">those</span> <span word="believing">believing</span> <span word="that">that</span> <span word="all">all</span> <span word="living">living</span> <span word="creatures">creatures</span> <span word="were">were</span> <span word="created">created</span> <span word="by">by</span> <span word="God">God</span>.</p>
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