2021中考英语阅读理解：The Speed of Light

原创整理仅供参考2021中考英语阅读理解：TheSpeedofLight做中考英语阅读理解题时应注意的问题：忌不带问题。做阅读理解题时，应先把文章后面所给的考查题浏览一遍，然后带着这些问题进行阅读。边阅读边选出考查表层情况问题的答案，从而提高阅读效果。更多有关2021中考英语的信息可登录出国留学网英语频道，欢迎收藏本站(CTRL+D即可收藏)!

TheSpeedofLight

Lighttravelsataspeedwhichisaboutamilliontimesfasterthanthespeedofsound.

Inonesecond,lighttravelsabout300,000kilometres.

Butsoundtravelsonly0.344kilometres.Youcangetsomeideaofthisdifferencebywatchingthestartofarace.IfyouStandsomedistance(距离)awayfromthestarter,youcanseesmokecomefromhisgun

(枪)beforethesoundreachesyourears.

Thisgreatspeedoflightproducessomestrangefacts.Sunlighttakesabout8minutesto

reachus.Ifyoulookatthelightofthemoontonight,rememberthatthelightleftthemoon

1.3secondbeforetheyreachedyou.Theneareststarisfarawayfromtheearth.Thelight

whichyoucanseefromittonightstartedtotraveltowardsyoufouryearsagoataspeedof

nearly2millionkilometersoneminute.Insomecases(情况)thelightfromoneof

tonight‟sstartsstartedonitsjourneytoyoubeforeyouwereborn.

Ifwewanttobehonest(诚实),wecannotsay"Thestarsareshiningtonight.'Wehave

tosay,"Thestarslookpretty(漂亮).Theywereshiningfouryearsago.Buttheirlight

hasonlyjustreachedtheearth..'

判断正误：

()1.Lightspeedisaboutamilliontimesfasterthansoundspeed.

()2.Ifyoustand100metresawayfromastarter,youcanhearthegunbeforeyousee

thesmoke.

()3.Themoonmustbeabouttwomillionkilometersawayfromtheearth.

()4.Thesunmustbeabout480times300,000kilometresawayfromtheearth..

()5.Themoonlightweseetonightstartedtotraveltowardsusfouryearsago.

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