上海市2012年中考英语新题型专项练习 选词填空3.doc

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1、2012年上海中考英语新题型专项练习——选词填空3before,discover,fast,in,come,watch,so,fastit,ago,shine,notcan　　Lighttravelsataspeed(速度)whichisaboutamilliontimes1.________thanthatofsound. 2.________onesecond,lighttravelsabout300,000kilometers,butsoundtravelsonly340meters.Youcangetsomeide

2、aofthisdifferenceby 3.________ thestartofarunningmatch.Ifyoustandfarawayfromthestarter(发令员),youcanseesmoke4.________fromhisgun5.________thesoundreachesyourears.　　Thefastspeedoflightproducessomestrangefacts.Theneareststaris6.________farawaythatlightwhichyoucanseefr

3、omittonightstartedtotraveltoyou fouryears 7.________ataspeedofnearlytwomillionkilometerseveryminute.Thelightfromsomeoftonight'sstartedon8.________journeytowardsyouevenbeforeyouwereborn.　　So,ifwewanttobehonest(诚实),we9. ________say,"Thestarsareshiningbrightlytonight

4、." Wehavetosay,"Thestarslooknice.Theywere10.________fouryearsagobuttheirlighthasjustreachedourearth." 参考答案：　　1.faster　　2.In　　3.watching　　4.come　　5.before　　6.so　　7.ago　　8.its　　9.cannot　　10.shining1用心爱心专心