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精品资料题型专项突破- Unit1完形填空一、完形填空 The rocket engine, with its steady roar（轰鸣）like that of a waterfall or a thunderstorm, is an impressive symbol of the new space age. Rocket engines have (1) powerful enough t0 shod astronauts (2) the earths gravitational (引力) pull and (3) them on the moon. We have now become space (3) .Impressive and complex 5 it may appear, the rocket, which was (6) in China over 800 years (3) , is a relatively simple device. Fuel that is (8) in the rocket engine changes (9) gas. The hot and rapidly (10) gas must escape, but it can do so only (11) an opening that (12) backward. As the gas is (13) with great force, it (14) the rocket in the (15) direction. Like the kick of a gun (16) it is fired, it (17) the laws of nature (18) by Sir Isaac Newton when he discovered that “ (19) every action, there is (20) equal and opposite reaction.”(1) A. shownB. beenC. appearedD. proved(2) A. againstB. despiteC. beyondD. from(3) A. sendB.了andC. take D. carry(4) A. travelersB. astronautsC. researchersD. explorers(5) A. becauseB. soC. asD. although(6) A. madeB. discoveredC. developedD. invented(7) A. in advanceB. beforeC. earlierD. ago(8) A. roundB. contained C. storedD. burned(9) A. asB. intoC. forD. the(10) A. heatingB. escapingC. expandingD. conducting(11) A. in B. atC. byD. through(12) A. turnsB. goesC. facesD. directs(13) A. transmittedB. spreadC. setD. radiated(14) A. attractsB. leadsC. pullsD. pushes(15) A. same B. other C. opposite D. wrong(16) A. thatB. when C. ifD. although(17) A. statesB. provesC. followsD. breaks(18) A. describedB. discussedC. considered D. made(19) A. Like B. AsC. WithD. For(20) A. noB. anC. anotherD. the答案：(1)-(5) DCBAC (6)-(10)DDDBC (11)-(15) DCDDC (16)-(20)BCADB解析：(1) 根据空后形容词powerful作表语可推知，此处应选系动词proved,意为“证明是”。been和appeared虽可作系动词但与句意不符，故排除。(2) 根据powerful enough to shoot astronauts可以判断是“超出地球的引力”，故选beyond,意为“超出，超过”。(3) 根据后面的on the moon可知选land,固定短语landon意为“使着陆”。(4) traveler意为“旅行者”；astronaut意为“宇航员”；researcher意为“研究者”；explorer意为“探险者”。联系上下文可知，此处用space travelers最合适，表示“太空旅行者”。(5) 此处是表示让步状语从句的状语从句，而且是一个倒装句，故选连词as。连词although不用于倒装句中，故排除D项。(6) make意为“制造”；discover t意为“发展”；invent意为“发明”。根据语境可以看出，此处用invented最符合，句意为“在中国，火箭是800多年前被发明的”。(7) 表示“多少年以前”要用ago, over 800 years ago意为“800多年前”。(8) fuel被燃烧才能变成gas,故选burned。(9) 此处表示“变成气体”，故用固定短语change into。(10) 根据常识可知，此处应选expanding gas, 意为“膨胀的气体”。(11) 膨胀的气体只有通过一个出口才能逸出，故选 through, 意为“穿过，通过”。(12) 此处为定语从句，意为“朝后的出口”，故选 faces,意为“朝着”。(13) 这里表示当气体被用力放出时，故选radiate, 意为“发射，射出”，其他三项都不符合语境。(14) 根据常识可知，火箭发射时要依靠喷出的气体 给它推力，故选push,意为“推”。(15) 根据常识可知，火箭与放射出的气体是相反的，故用opposite，in the opposite direction 意为朝“相反的方向”。(16) 此处用when引导时间状语从句，意为“当开枪时”。(17) 此处意为“遵循自然规律”，故选follow。(18) 此处用described做后置定语，意易 “被牛顿描述的”。(19) like表示“如同”；as表示“例如”；with表示“随着”；for表示“对于”。根据语境可知选for合适。(20) 句意为“每个作用力都有一个相等的反作用力”。此处表示泛指，故选an。
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