欢迎来到天天文库
浏览记录
ID:21005045
大小:26.00 KB
页数:3页
时间:2018-10-18
《中考英语阅读理解练习:light》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、中考英语阅读理解练习:Light Lighttravelsataspeedwhichisaboutamilliontimesfasterthanthespeedofsound.Youcangetsomeideaofthisdifferencebywatchingthestartofarace.Ifyoustandsomedistanceawayfromthestarter,youcanseesmokefromhisgunbeforethesoundreachesyourears. Thisgreatspeedoflightproducessomestrangefac
2、ts.Sunlighttakesabout8minutestoreachus.Ifyoulookatthelightofthemoontonight,rememberthatthelightraysleftthemoonsecondsbeforetheyreachedyou.Theneareststarissofarawaythatthelightthatyoucanseefromittonightstartedtotraveltowardsyoufouryearsagoataspeedofnearly2millionkm.perminute.Insomecases,t
3、helightfromoneoftonight’sstarshadstartedonitsjourneytoyoubeforeyouwereborn. Thus,ifwewanttobehonest,wecan’tsay,“Thestarsareshiningtonight.”Wehavetosayinstead,“Thestarslookpretty.Theywereshiningfouryearsago,buttheirlighthasonlyjustreachedtheearth.” 1.Lightspeedis______soundspeed A.asfa
4、stasB.amilliontimesslowerthan C.aboutmillionsoftimesfasterthanD.aboutamilliontimesfasterthan 2.Ifyoustand200metresawayfromamanwhoisfiringaguntostartarace,youwillfindoutthat______. A.youcanhearthesoundbeforeyouseethesmokeB.thesounddoesnottravelasfastaslight C.thesoundwillreachyoubefor
5、ethemanfiresD.soundtravelsaboutamilliontimesfasterthanlight 3.Sunlightobviously(明显地)______thanthelightofthemoon A.hastotravelagreaterdistanceB.moveslessquickly C.travelsmuchmorequicklyD.islesspowerful(有力的) 4.Thescientificwayofsaying“Thestarsareshiningtonight”shouldbe______. A.thesta
6、rshavebeenshiningallthetimeB.thestarsseentonightwillshinefouryearslater C.thestarswereshininglongagobutseentonightD.thestarlightseentodaycouldbeseenfouryearsago 1.D事实细节题。由第1段第1句可知。 2.B推理判断题。由第1段最后一句推出。 3.A推理判断题。由第2段的第2句(太阳光到达地球需要8分钟)和第3句(月光到达地球仅需秒)可推出(太阳光走过的距离明显远于月光)。 4.C推理判断题。由最后一段
7、的最后一句Theywereshiningfouryearsago,buttheirlighthasonlyjustreachedtheearth可推出。
此文档下载收益归作者所有