专题推荐： 2011年12月英语四级考试备考冲刺专题

　　The rocket engine, with its steady roar like that of a waterfall or athunderstorm, is an impressive symbol of the new spaceage.Rocket engines have 1_ powerful enough to shootastronauts 2_ the earth’s gravitational pull and 3_ them on themoon.We have now become 4_ space.
　　Impressive and complex 5_ it may appear, the rocket, whichwas 6_ in China over 800 years 7_ , is a relatively simpledevice.Fuel that is 8_ in the rocket engine changes 9_ gas.The hot and rapidly 10 _gas mustescape, but it can do so only 11_ an opening that 12_ backward.As the gas is 13_ with greatforce, it 14_ the rocket in the 15 _direction.Like the kick of a gun 16_ it is fired, it 17_ the laws ofnature 18_ by Sir Isaac Newton when he discovered that“ 19_ every action, there is 20_ equaland opposite reaction.”
　　1.A.shown B.been C.appeared D.proved
　　2.A.against B.despite C.beyond D.from
　　3.A.send B.land C.take D.carry
　　4.A.travelers B.astronauts C.researchers D.explorers
　　5.A.that B.so C.as D.sometimes
　　6.A.made B.discovered C.developed D.invented
　　7.A.in advance B.before C.earlier D.ago
　　8.A.round B.contained C.stored D.burned
　　9.A.as B.into C.for D.the
　　10.A.heating B.escaping C.expanding D.conducting
　　11.A.in B.at C.by D.through
　　12.A.turns B.goes C.faces D.directs
　　13.A.transmitted B.dispersed C.erected D.radiated
　　14.A.attracts B.leads C.pulls D.pushes
　　15.A.same B.other C.opposite D.wrong
　　16.A.that B.when C.if D.although
　　17.A.states B.proves C.follows D.breaks
　　18.A.described B.discussed C.considered D.made
　　19.A.like B.as C.with D.for
　　20.A.no B.an C.another D.theCloze

　　更多完型填空集中练习：
　　2011年cet4完形填空题集中训练汇总
　　2010.12cet4完形填空提高练习汇总

　　真题推荐： 2011年6月四级完型填空试题及答案汇总

　　如果您想获得更多关于完型填空应试技巧方面的知识，请考生点击阅读＞＞＞完型填空指导栏目。