Languagelearningbeginswithlistening.Childrenaregreatlydifferentintheamountoflisteningtheydobeforetheystartspeaking,andlaterstartersareoftenlonglisteners.Mostchildrenwill“obey”spokeninstructionssometimebefor

　　Languagelearningbeginswithlistening.Childrenaregreatlydifferentintheamountoflisteningtheydobeforetheystartspeaking,andlaterstartersareoftenlonglisteners.Mostchildrenwill“obey”spokeninstructionssometimebeforetheycanspeak,thoughtheword“obey”ishardlyaccurateasadescriptionoftheeageranddelightedcooperationusuallyshownbythechild.Beforetheycanspeak,manychildrenwillalsoaskquestionsbygestureandbymakingquestioningnoises.Anyattempttostudythedevelopmentfromthenoisesbabiesmaketotheirfirstspokenwordsleadstoconsiderabledifficulties.Itisagreedthattheyenjoymakingnoises,andthatduringthefirstfewmonthsoneortwonoisessortthemselvesasparticularlyexpressiveasdelight,pain,friendliness,andsoon.Butsincethesecan’tbesaidtoshowthebaby’sintentiontocommunicate,theycanhardlyberegardedasearlyformsoflanguage.Itisagreed,too,thatfromaboutthreemonthstheyplaywithsoundsforenjoyment,andthatbysixmonthstheyareabletoaddnewwordstotheirstore.Thisself-imitation（模仿）leadsontodeliberate（有意的）imitationofsoundsmadeorwordsspokentothembyotherpeople.Theproblemthenarisesastothepointatwhichonecansaythattheseimitationscanbeconsideredasspeech.Itisaproblemweneedtogetout.Themeaningofaworddependsonwhataparticularpersonmeansbyitinaparticularsituationanditisclearthatwhatachildmeansbyawordwillchangeashegainsmoreexperienceoftheworld.Thustheuseatsevenmonthsof“mama”asagreetingforhismothercannotbedismissedasameaninglesssoundsimplybecausehealsousesitatothertimesforhisfather,hisdog,oranythingelsehelikes.Playfulandmeaninglessimitationofwhatotherpeoplesaycontinuesafterthechildhasbeguntospeakforhimself,Idoubt,howeverwhetheranythingisgainedwhenparentstakeadvantageofthisabilityinanattempttoteachnewsounds.

　　1．.Beforechildrenstartspeaking，whatisgreatlydifferent?________.

　　A.theamountoflistening

　　B.anumberoflistening

　　C.thesoundoflistening

　　D.themeaningoflistening

　　2.startersareoftenlonglisteners,thesentencemeansonecan________.

　　A.behardtospeakfluently

　　B.begintospeakqu