2021年12月英语四级听力:FindingtheDirectionandLocation
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2021年12月英语四级听力:Finding the Direction and Location思维导图模板大纲
FindingtheDirectionandLocation
Howcanyoutellwhichdirection?Byday,lookfortheSun.Itisintheeastinthemorningandthewestintheafternoon.Atnight,usetheBigDippertohelpyoufindtheNorthStar.Itwouldbebettertobringacompassbecauseitsneedlealwayspointsnorth.
Howdoyouknowhowfaryouhavegone?Youcouldcounteverystep.Eachstepisabouttwofeet.You’dbetterwearapedometerwhichisatoolthatcountssteps.Ifyouknowwhereyoustarted,whichdirectionyouareheading,andhowfaryouhavegone,youcanuseagoodmaptofigureoutexactlywhereyouare.
Todaythereisanewwayfortravelerstofigureoutwheretheyare.ItistheGPS.Ithas24satellitesthatorbittheearthandconstantlybroadcasttheirpositions.SomedayyoumaycarryasmallreceiverasyouhikeanduseGPStofindoutifyouarethereyet!
UsefulWordsandExpressions:
1.dipper北斗七星
2.compass罗盘
3.pedometer步数计
4.GPS=GlobalPositionSystem全球定位系统
5.orbit轨道,绕……轨道而行
6.receiver接收器