作业音频

作业音频Dictation1LightAllNightNotAlright整夜开灯并非好事（159words）Anightlightmaykeepthosemonstersunderthebed./Butitmayalsoopenthedoortotheblues./Ifyouhaveaccesstoelectricity,younodoubtswitchonalamp,/maybeevenwatchalittleTV,afterthesungoesdown./Butourbodiesusecuesaboutlightnessanddarktoregulateourhormones/andofcourseoursleepcycles./Sowhatmighttheseextraphotonsbedoingtoourhealth?/Tofindout,scientistshousedmiceinaroom/wherethelightswerealwayson./Afterthreeweeks,theyfoundthatmicewholivedinthespotlightshowedsymptomsofdepression,/moresothanmicewhoenjoyedeighthoursofdarknessatnight./Interestingly,micewhocouldescapethelightbyduckingintoadarktube/alsoescapedtheworstofthedepression./Soflipthatlightswitchatyourownrisk./Becausetheartificialbrightnessthathelpskeepusupcouldalsobringusdown./Dictation2London2021OlympicGames伦敦2021奥运会（154words）Afterahard-foughtcampaign,/Londonhasbeenawardedtherighttohostthe2021OlympicGames./TheUKcapitalsawoffcompetitionfromfourrivalcities:/Paris,Madrid,MoscowandNewYork./Londonerscannowlookforwardtothetransformationoftheircity/inthesamewayastheircounterpartsinBeijing./Indeed,therearemanysimilaritiesinthetwocities’approachtohostingthegames./Bothcitiesneedtoinvestindevelopingtheirinfrastructure/inordertocopewiththedemandsoftheevent./However,thiskindofinvestmentisfarfromcheap/—itisestimatedthatitwillcostaround$40billiontoprepareforthe2021games,/muchofwhichwillbespentontransportlinks./Nevertheless,thebenefitsofbecominganOlympiccitycanbeenormous/—Barcelona,whichhostedthe1992games,/wascompletelyregeneratedandhassincebecomeoneofthemostpopulartouristdestinationsintheworld./Dictation3Picnic野餐（155words）AssummertimebeginsinBritain,peoplestarttofeeltheurgetogooutsidetoeat./Peoplelovetohaveapicnicwhenevertheweatherisgoodenough,/especiallypeoplewithchildren./It’sagreatwaytospendasunnyafternoon./EveninthecentreofLondon,onasunnyday,/theparksarefullofofficeworkerseatingtheirlunchoutsideonthegrass./Thatmightbeaprettybasicpicnic/—ashop-boughtsandwichandabottleofwater./Butifpeopleareplanningapicniconthebeachoratthepark,/theywouldprobablypackacoolbag/withawholevarietyofhome-madesandwiches,snacks,cake,fruitandsoftdrinks./Theymighthaveapicnicrugtositon,andpaperplatesandcups./Universitystudentsenjoyhavingpicnics,/andusuallytakealongsomekindofsportsequipment,/suchasaballinordertoburnoffsomeenergyafterlunch./Dictation4ChangingNameafterMarriage婚后改名（155words）Gettingmarriedisoneofthemostimportantdecisionsthatapersontakesinone’slife./Thisisbecauseitisastepthathasthepotentialtoalterorchangeone’slifealtogether./Rightfromtheweddingdresstothehouse/thatthecouplewillliveaftertheirwedding,/isdecidedwithutmostcare./Animportantdecisionthatthepersonhastomakealongwiththeotherarrangementsforthewedding/istochoosebetweenone’smaidennameandspouse’sname./Thoughtraditionally,womenareexpectedtochangetheirname/fromtheirmaidennametotheirhusband’sname,/manywomennowadaysopttokeeptheirmaidennameaftermarriage,/mostlyforprofessionalreasons./Apartfromthis,therearewomenwhoadopttheirhusband’slastname/andkeeptheirmaidennameastheirsecondname./Also,therearecoupleswhomakeanewnamewithboththeirnames,/byseparatingthenameswithahyphen./Dictation5TheCompass指南针（153words）Amagneticcompassisadevicethathasbeenusedforcenturiesnow,/anditsutilityinhelpingpeoplefindtheirwayisundoubted./BeforetechnologygaveustheprivilegeofGPSnavigationsystems,/theactoffindingoutwhereyouareandwhichsideisnorth/wascarriedoutsimplywiththehelpofacompass./We’veallseenacompassatsomepointortheother,/andthishasalmostalwaysledustothequestion“Howdoesacompasswork?”/Theanswertothisquestioncanbeexplained/throughtheconceptoftheearth’selectromagnetism./Simplyspeaking,acompassisbasicallyasmallmagnet/thathasaneedleattachedononeend./Theotherendofthemagnetisattachedtoafreelymovingpin./Whenthecompassisheldoutsteadily,/themagnetbecomesparallelwiththemagneticfieldoftheEarth,/andthiscausesittopointnorth./Dictation6BallGames球类运动（157words）Ballgameshavebecomeanintegralpartofmodernsociety./Theygiveusentertainmentprovidingusameanstosafelyfreeourselvesfromstress./Therearemanydifferentballgamesthatcandothisforus./Somepeopleenjoyfootball,whileotherslikebasketball./ThesetwoballgamesarethemostpopularinChina./Othergamessuchasbaseballaregrowinginappeal,yethavenotbecomepopular./Thedevelopmentofthesegamesisinteresting./Basketballisoneofthefewsportswithaknowndateofbirth./Football,orsoccer,originallydevelopedfromtraitsfoundinbothChinaandEurope./Ithasgrowntobecometheworld’smostpopularsport./InEurope,footballclubshavebeenestablished,/whichinturnhasbeencopiedintherestoftheworld./Thesefootballclubstrainplayers/whomaylatergotoplayfortheirnationsintheWorldCup./Thisisthemostwatchedballgamechampionshipontheplanet./Dictation7WaterSports水上运动（145words）Thehistoryofman’sinvolvementwithwatersports/stretchesbackbeforehistorywaswrittendown./Itisahistoryofthedevelopmentoftechnologyaswellashumanphysicalachievement./Manfirsttooktowaterinboatsthatsailedaroundtheworld/withnothingbutthestarstoguidethem./Theseasandriverswereamysterytobefeared,/forlurkedunknow