英语四六级完型填空练习与答案解析7
<p> <span word="The">The</span> <span word="rocket">rocket</span> <span word="engine">engine</span>, <span word="with">with</span> <span word="its">its</span> <span word="steady">steady</span> <span word="roar">roar</span> <span word="like">like</span> <span word="that">that</span> <span word="of">of</span> <span word="a">a</span> <span word="waterfall">waterfall</span> <span word="or">or</span> <span word="a">a</span> <span word="thunderstorm">thunderstorm</span>, <span word="is">is</span> <span word="an">an</span> <span word="impressive">impressive</span> <span word="symbol">symbol</span> <span word="of">of</span> <span word="the">the</span> <span word="new">new</span> <span word="space">space</span> <span word="age">age</span>.<span word="Rocket">Rocket</span> <span word="engines">engines</span> <span word="have">have</span> 1 <span word="powerful">powerful</span> <span word="enough">enough</span> <span word="to">to</span> <span word="shoot">shoot</span> <span word="astronauts">astronauts</span> 2 <span word="the">the</span> <span word="earths">earths</span> <span word="gravitational">gravitational</span> <span word="pull">pull</span> <span word="and">and</span> 3 <span word="them">them</span> <span word="on">on</span> <span word="the">the</span> <span word="moon">moon</span>.<span word="We">We</span> <span word="have">have</span> <span word="now">now</span> <span word="become">become</span> 4 <span word="space">space</span>.</p><p> <span word="Impressive">Impressive</span> <span word="and">and</span> <span word="complex">complex</span> 5 <span word="it">it</span> <span word="may">may</span> <span word="appear">appear</span>, <span word="the">the</span> <span word="rocket">rocket</span>, <span word="which">which</span> <span word="was">was</span> 6 <span word="in">in</span> <span word="China">China</span> <span word="over">over</span> 800 <span word="years">years</span> 7 , <span word="is">is</span> <span word="a">a</span> <span word="relatively">relatively</span> <span word="simple">simple</span> <span word="device">device</span>.<span word="Fuel">Fuel</span> <span word="that">that</span> <span word="is">is</span> 8 <span word="in">in</span> <span word="the">the</span> <span word="rocket">rocket</span> <span word="engine">engine</span> <span word="changes">changes</span> 9 <span word="gas">gas</span>.<span word="The">The</span> <span word="hot">hot</span> <span word="and">and</span> <span word="rapidly">rapidly</span> 10 <span word="gas">gas</span> <span word="must">must</span> <span word="escape">escape</span>, <span word="but">but</span> <span word="it">it</span> <span word="can">can</span> <span word="do">do</span> <span word="so">so</span> <span word="only">only</span> 11 <span word="an">an</span> <span word="opening">opening</span> <span word="that">that</span> 12 <span word="backward">backward</span>.<span word="As">As</span> <span word="the">the</span> <span word="gas">gas</span> <span word="is">is</span> 13 <span word="with">with</span> <span word="great">great</span> <span word="force">force</span>, <span word="it">it</span> 14 <span word="the">the</span> <span word="rocket">rocket</span> <span word="in">in</span> <span word="the">the</span> 15 <span word="direction">direction</span>.<span word="Like">Like</span> <span word="the">the</span> <span word="kick">kick</span> <span word="of">of</span> <span word="a">a</span> <span word="gun">gun</span> 16 <span word="it">it</span> <span word="is">is</span> <span word="fired">fired</span>, <span word="it">it</span> 17 <span word="the">the</span> <span word="laws">laws</span> <span word="of">of</span> <span word="nature">nature</span> 18 <span word="by">by</span> <span word="Sir">Sir</span> <span word="Isaac">Isaac</span> <span word="Newton">Newton</span> <span word="when">when</span> <span word="he">he</span> <span word="discovered">discovered</span> <span word="that">that</span> 19 <span word="every">every</span> <span word="action">action</span>, <span word="there">there</span> <span word="is">is</span> 20 <span word="equal">equal</span> <span word="and">and</span> <span word="opposite">opposite</span> <span word="reaction">reaction</span>.</p><p> 1.<span word="A">A</span>.<span word="shown">shown</span> <span word="B">B</span>.<span word="been">been</span> <span word="C">C</span>.<span word="appeared">appeared</span> <span word="D">D</span>.<span word="proved">proved</span></p><p> 2.<span word="A">A</span>.<span word="against">against</span> <span word="B">B</span>.<span word="despite">despite</span> <span word="C">C</span>.<span word="beyond">beyond</span> <span word="D">D</span>.<span word="from">from</span></p><p> 3.<span word="A">A</span>.<span word="send">send</span> <span word="B">B</span>.<span word="land">land</span> <span word="C">C</span>.<span word="take">take</span> <span word="D">D</span>.<span word="carry">carry</span></p><p> 4.<span word="A">A</span>.<span word="travelers">travelers</span> <span word="B">B</span>.<span word="astronauts">astronauts</span> <span word="C">C</span>.<span word="researchers">researchers</span> <span word="D">D</span>.<span word="explorers">explorers</span></p><p> 5.<span word="A">A</span>.<span word="that">that</span> <span word="B">B</span>.<span word="so">so</span> <span word="C">C</span>.<span word="as">as</span> <span word="D">D</span>.<span word="sometimes">sometimes</span></p><p> 6.<span word="A">A</span>.<span word="made">made</span> <span word="B">B</span>.<span word="discovered">discovered</span> <span word="C">C</span>.<span word="developed">developed</span> <span word="D">D</span>.<span word="invented">invented</span></p><p> 7.<span word="A">A</span>.<span word="in">in</span> <span word="advance">advance</span> <span word="B">B</span>.<span word="before">before</span> <span word="C">C</span>.<span word="earlier">earlier</span> <span word="D">D</span>.<span word="ago">ago</span></p><p> 8.<span word="A">A</span>.<span word="round">round</span> <span word="B">B</span>.<span word="contained">contained</span> <span word="C">C</span>.<span word="stored">stored</span> <span word="D">D</span>.<span word="burned">burned</span></p><p> 9.<span word="A">A</span>.<span word="as">as</span> <span word="B">B</span>.<span word="into">into</span> <span word="C">C</span>.<span word="for">for</span> <span word="D">D</span>.<span word="the">the</span></p><p> 10.<span word="A">A</span>.<span word="heating">heating</span> <span word="B">B</span>.<span word="escaping">escaping</span> <span word="C">C</span>.<span word="expanding">expanding</span> <span word="D">D</span>.<span word="conducting">conducting</span></p><p> 11.<span word="A">A</span>.<span word="in">in</span> <span word="B">B</span>.<span word="at">at</span> <span word="C">C</span>.<span word="by">by</span> <span word="D">D</span>.<span word="through">through</span></p><p> 12.<span word="A">A</span>.<span word="turns">turns</span> <span word="B">B</span>.<span word="goes">goes</span> <span word="C">C</span>.<span word="faces">faces</span> <span word="D">D</span>.<span word="directs">directs</span></p>
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