资料：Didyourchild'sbrainshrinklastsummer?Probablynot,butitmayhaveshiftedintoreverse,accordingtoastudybyDr.HarrisCooper,professorofpsychologyattheUniversityofMissouri-Columbia.Thestudyfoundthatwhenstudentsreturntoschoolafteralongsummervacation,they'velostonetothreemonthsworthoflearning. Thedeclineismoredetrimentalformaththanitisforreading."Allstudentslosemathskills,"saysCooper.Itmaybebecausecommunityandhomeenvironmentsgivekidsmoreopportunitiestopracticereadingthanmath.Thestudyalsofoundthatincomehasanimpactonhowmuchastudentlosesorgainsinreading.Middle-classchildrenactuallygainedinreadingoverthesummer,whilelower-incomestudentsexperiencedlosses.Cooperattributesthistotheenrichmentactivitiesthatmanymiddle-classkidsparticipateinoverthesummer,suchascampandtrips. Yourkidsdon'thavetospendthesummerstuckinreverse."Parentscanhelptheirkidsretaineducationalskills,"saysCooper.Hesuggeststhefollowingfivetipstokickoffalearning-filledsummer. 1.Keeplotsofbooksaroundandmakeregulartripstothelibrary.Mostlibrariesschedulespecialsummereventsforkids.Signupyourfamily! 2.Thinkaboutwhatyourkidsmaybelearningnextyearwhenyouplanthefamilyvacation.Talkwithteacherstofindoutwhatthey'llbecoveringinclass.Ifit'saunitonthecivilwarforexample,youmaywanttoscheduleavisittoGettysburg.Ifit'sgeology,visitanationalpark. 3.Keepmathinmind.Sincekidslosemoremathskillsthananythingelseoverthesummer,trytodosomespecialplanningtofindmath-relatedactivities.Forexample,ifyoucan'tdecidewhethertosignyourchildupfor"Shakespeare'sTheater"or"MathMagic"atthelocalcommunitycenter,gowiththemath. 4.Considersummerschoolortutoring.Strugglingkidscangetalotofdifferentkindsofhelpfromtheseprograms.Summerschoolcanalsoenrichandacceleratelearninginareaswherekidsshowaspecialinterest. 5.Callthecurriculumcoordinatorinyourchild'sschooldistrict,visittheschoolboardoffice,orcontacttheschoolsofeducationatlocalcollegesanduniversitiestofindoutwhateducationalprogramswillbeofferedinyourareaoverthesummer. Remembertokeepitfun!Youdon'twanttosouryourkidsonlearningduringthesummerbreak. WhatdoseDr.HarrisCooper’sresearchfind？()
A.After summer vocation kids will lose one to three months worth of learning B.After summer vocation kids will lose learning capability in reading C.Summer vocation makes kids lose learning skills in math D.Summer vocation brings kids psychological problems正确答案A
