八下英语选词填空before,discover,fast,i-查字典问答网

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　　八下英语选词填空before,discover,fast,in,come,watch,so,fast,it,ago,shine,notcanLighttravelsataspeedwhichisaboutamilliontimes()thanthatofsound.()onesecond,lidhttravelsabout300,000kilomemters,butsoundtravesonly340m

　　八下英语选词填空

　　before,discover,fast,in,come,watch,so,fast,it,ago,shine,notcan

　　Lighttravelsataspeedwhichisaboutamilliontimes()thanthatofsound.()onesecond,lidhttravelsabout300,000kilomemters,butsoundtravesonly340meters.Youcangetsomeideaofthisgifferenceby()thestartofarunningmatch.Ifyoustandfarawayfromthestarter(发令员),youcanseesmoke()fromhisgun()thesoundreachesyourears.

　　Thefastspeedoflightproducessomestrangefacts.Theneareststaris()farawaythatlightwhichyoucanseefromittonightstartedtotraveltoyouryears()ataspeedofnearlytwomillionkilomemterseveryminute.Thelightfromsomeoftonight'sstartedon.()journeytowardsyouevenbeforeyouwereborn.

　　So,ifwewanttobehonest(诚实）,we()say,"Thestarsareshiningbrightlytonight."Wehavetosay,"Thestarslooknice.theywere()fouryearsagobuttheirlighthasjustreachedourearth."

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2020-04-2416:38

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马桂珍

　　Lighttravelsataspeedwhichisaboutamilliontimes(faster)thanthatofsound.(in)onesecond,lidhttravelsabout300,000kilomemters,butsoundtravesonly340meters.Youcangetsomeideaofthisgifferenceby(watching)thestartofarunningmatch.Ifyoustandfarawayfromthestarter(发令员),youcanseesmoke(coming)fromhisgun(before)thesoundreachesyourears.

　　Thefastspeedoflightproducessomestrangefacts.Theneareststaris(so)farawaythatlightwhichyoucanseefromittonightstartedtotraveltoyouryears(ago)ataspeedofnearlytwomillionkilomemterseveryminute.Thelightfromsomeoftonight'sstartedon.(its)journeytowardsyouevenbeforeyouwereborn.

　　So,ifwewanttobehonest(诚实）,we(can't)say,"Thestarsareshiningbrightlytonight."Wehavetosay,"Thestarslooknice.theywere(shining)fouryearsagobuttheirlighthasjustreachedourearth."错了我负责!