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四级考试完形填空精选练习（24）

发布时间：2016-03-01 编辑：查字典英语网小编

　　Impressive and complex 5 it may appear, the rocket, which was 6 in China over 800 years 7 , 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.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

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