全新版大学英语4第二版听说教程unit3答案

全新版大学英语第二版听说教程4unit3PartAonP227.Whatdolong-termmemoryandshort-termmemorymean?Intermsofduration,memorycanbeclassifiedintolong-termmemoryandshort-termmemory.Bylong-termmemory,wemeanmemorythatlastsasshortasafewdaysandaslongasdecades.Byshort-termmemory,werefertomemorythatstoresitemsforonlyaround18secondsorjustlessthanonehour.Atypicalexampleoftheformertypeispeople'sremembranceoftheirnamesandbirthdays,fornoonewillforgetthemintheirlifetime.Atypicalexampleofthelattertypeisabeautifulgirlorhandsomeboyyoumeetonthestreet,eventhoughyouareimpressedbyhim/heratthefirstglance,itisverylikelyforyoutoforgethim/hersoonafterwards.8.Howcanweimproveourmemory?Asamatteroffact,wearenotbornwithgoodmemory.However,thereareseveralwaysforustoimproveourmemory.Forinstance,recitingwell-writtenpassages,eitherEnglishorChinese,inthemorningisanefficientmethod.Besides,doingsometrainingfollowingtheguidanceinthebookswhichaimtoenhancepeople'smemoryisagoodchoice.Inaddition,usingimaginationtoarouseassociationisanothergoodchoicewhenwearetryingtomemorizesomething.Forexample,ifweareaskedtomemorizeacorrespondingtableasbelow,howcanwememorizeitcorrectlyinashorttime?3591420tablesglovescatsringscigarettesBytheway,weshouldnoticethatallthenounsareintheirpluralforms.Whatweneedtodointhefollowingistoarouseassociationbetweenthenumbersandnouns.Myassociationislikethese:3+table=atablewiththreelegs;5+glove=aglovehasfivefingers;9+cat=itisbelievedthatacatcanliveninetimes;14+ring=theValentine'sDay;20+cigarettes=generallythereare20cigarettesinapack.Seehowitgoes?Haveatryandyoucanmakeit,too.PartBHowOurMemoryWorksex.1onP24-25dcacex.2on25Firstly,itisafactthatsomepeoplewerebornwithbettermemories.Secondly,differentthingsarekeptindifferentpartsofthebrain.Ideas,wordsandnumbersarestoredintheleft-handsideandimages,soundsandsmellsintheright-handside.Thirdly,unusualexperiencescanproducechemicalssuchasadrenalineinourbodywhichcanboostmemory.Fourthly,howwellweremembersomethingisalsoaffectedbythecontextinwhichwelearnaboutit.Finally,themoreoftenyourecallamemory,themorelikelyyouaretorememberit.Ifyoudon’t,you’llloseit.PartCadb