题目内容：
Questionsarebasedonthefollowingpassage. Psychiatrists（精神病专家）whoworkwitholderparentssaythatmaturitycanbeanassetinchildrearing-olderparentsaremorethoughtful,uselessphysicaldisciplineandspendmoretimewiththeirchildren.Butraisingkidstakesmoneyandenergy.Manyolderparentsfindthemselvesbalancingtheirlimitedfinancialresources,decliningenergyandfailinghealthagainstthegrowingdemandsofanactivechild.Dyingandleavingyoungchildrenisprobablytheolderparents’biggest,andoftenunspoken,fear.Havinglate-lifechildren,saysaneconomicsprofessor,oftenmeansparents,particularlyfathers,“endupretiringmuchlater.”Formany,retirementbecomesanunobtainabledream.
HenryMetcalf,a54-year-oldjournalist,knowsittakesmoneytoraisekids.Buthe’salsoworriedthathisenergywillgiveoutfirst.Sure,hecanstillridebikeswithhisathleticfifthgrader,buthe’slearnedthatyoungatheartdoesn’tmeanyoung.Latelyhe’sbeentakingafternoonnaps（午睡）tokeepuphisenergy.“Mybodyisaging,”saysMetcalf.“Youcan’tgetawayfromthat.”
Often,olderparentshearthetickingofanotherkindofbiologicalclock.Therapistswhoworkwithmiddle-agedandolderparentssayfearsaboutagingarenothingtolaughat.“Theyworrythey’llbemistakenforgrandparents,orthatthey’llneedhelpgettingupoutofthoselittlechairsinnurseryschool,”saysJoannGalst,aNewYorkpsychologist.Butatthecoreofthoselittlefearsthereisoftenamuchbiggerone:“thattheywon’tbealivelongenoughtosupportandprotecttheirchild,”shesays.
Manylate-lifeparents,though,&nb
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