Grown-upsareoftensurprisedbyhowwelltheyremembersomethingtheylearnedaschildrenbuthaveneverpracticedeversince.Amanwhohasnothadachancetogoswimmingforyearscanstillswimaswellaseverwhenhegetsbackinthewa

　　Grown-upsareoftensurprisedbyhowwelltheyremembersomethingtheylearnedaschildrenbuthaveneverpracticedeversince.Amanwhohasnothadachancetogoswimmingforyearscanstillswimaswellaseverwhenhegetsbackinthewater.Hecangetonabicycleaftermanyyearsandstillrideaway.Hecanplaycatchandhitaballaswellashisson.Amotherwhohasnotthoughtaboutthewordsforyearscanteachherdaughterthepoemthatbegins"Twinkletwinklelittlestar"orrememberthestoryofCinderellaorGoldilocksandtheThreeBears.

　　Oneexplanationisthelawofoverlearningwhichcanbestatedasfollows:Oncewehavelearnedsomethingadditionallearningtrials(尝试)increasethelengthoftimewewillrememberit.

　　Inchildhoodweusuallycontinuetopracticesuchskillsasswimmingbicycleridingandplayingbaseballlongafterwehavelearnedthem.Wecontinuetolistentoandremindourselvesofwordssuchas"Twinkletwinklelittlestar"andchildhoodtalessuchasCinderellaandGoldilocks.Wenotonlylearnbutoverlearn.

　　Themultiplicationtables(乘法口诀表)areanexceptiontothegeneralrulethatweforgetratherquicklythethingsthatwelearninschoolbecausetheyareanotherofthethingsweoverlearninchildhood.

　　Thelawofoverlearningexplainswhycramming(突击学习)foranexaminationthoughitmayresultinapassinggradeisnotasatisfactorywaytolearnacollegecourse.Bycrammingastudentmaylearnthesubjectwellenoughtogetbyontheexaminationbutheislikelysoontoforgetalmosteverythinghelearned.Alittleoverlearningontheotherhandisreallynecessaryforone'sfuturedevelopment.

　　【小题1】Whatisthemainideaofparagraph1?

　　A．Peoplerememberwellwhattheylearnedinchildhood.B．Childrenhaveabettermemorythangrown-ups.C．Poemreadingisagoodwaytolearnwords.D．Storiesforchildrenareeasytoremember.【小题2】Theauthorexplainsthelawofoverlearningby_________.A．presentingresearchfindingsB．settingdowngeneralrulesC．makingacomparisonD．usingexamples【小题3】Accordingtotheauthorbeing