【单选题】BInFebruary2006,LydiaAngyiouandhertwosonswerewalkingthroughtheirvillageinnorthernCanada.Thesoundofchildrenshoutingmadeherturnaround.Toherhorror,Lydiasawa700-poundpolarbearbehindhereyeingherseven-year-oldson.Gettingbetweenthebearandherchild,Lydiayelledatthechildrentorunaway.Shethenbeganhittingandkickingtheanimalashardasshecould.Aneighborwhoheardallthenoisecameandshotthebear.ButeveryoneagreeditwasLydiawhohadsavedherchildren'slives.Alocalpolicemandescribeditthisway:"…Iguesswhenyourbackisupagainstthewall,…wecomeupwithsuper-humanstr ength."Wheredoesthis"super-humanstr ength",courageandquickthinkingcomefrom?Expertssayitcomesfromstr ess!Instr essfulsituations,thebodyreleaseschemicalsthatprepareittotakeaction.Thesechemicalsgivepeoplethespeedandstr engththeyneedtofightd angerorrunawayfromit.Whenwethinkofstr ess,weusuallythinkofitsnegativeeffects.Studies,though,showthatmoderatelevelsofstr essareactuallyhelpful.Infact,thewayweperformisusuallyaffectedbytheamountofstr esswefeel.Str esscausesthebraintoreleaseadrenaline(肾上腺素)whichinturnincreasesourenergyandexcitement.Thechemicalgivesusclearermindsandhelpsustodomore.Thisiswhysomepeoplesaytheyworkbetterunderadeadline.Adrenalinethatisnotr eleasedforlongperiodsoftimecancauseustoincreaseandstr engthenourabilitiesinsteadofweakeningthem.Wesometimesturnoutourverybestworkwhenwepushourselvestothelimit.Str esscanalsomakeusmoreconfident.Handlingsmallamountsofstr essnowpreparesusforhandlingserioussituationsinthefuture.Whoknows?Today'sstr essmayevenprepareforthenextpolarbearthatcomesalong!55.Inthefirstparagraph,thecaseofLydiaAngyiouismentionedto______.A.intr oducethetopictobefollowedB.praiseLydiaAngyiouforherbraveryC.remindusoftheunexpecteddangeroflifeD.showtheimportanceofsuper-humanstr ength56.Whatd oesthepolicemanprobablymeanbysaying"yourbackisupagainstthewall"?[A.Youarehelped.B.Youareinspired.C.Youareconfident.D.Youarecornered.57.Whatwouldbethebesttitleforthepassage?A.BraveMotherB.TheCauseofStr essC.TheBenefitofStr essD.Super-humanStr ength
【单选题】BInFebruary2006,LydiaAngyiouandhertwosonswerewalkingthroughtheirvillageinnorthernCanada.Thesoundofchildrenshoutingmadeherturnaround.Toherhorror,Lydiasawa700-poundpolarbearbehindhereyeingherseven-year-oldson.Gettingbetweenthebearandherchild,Lydiayelledatthechildrentorunaway.Shethenbeganhittingandkickingtheanimalashardasshecould.Aneighborwhoheardallthenoisecameandshotthebear.ButeveryoneagreeditwasLydiawhohadsavedherchildren'slives.Alocalpolicemandescribeditthisway:"…Iguesswhenyourbackisupagainstthewall,…wecomeupwithsuper-humanstr ength."Wheredoesthis"super-humanstr ength",courageandquickthinkingcomefrom?Expertssayitcomesfromstr ess!Instr essfulsituations,thebodyreleaseschemicalsthatprepareittotakeaction.Thesechemicalsgivepeoplethespeedandstr engththeyneedtofightd angerorrunawayfromit.Whenwethinkofstr ess,weusuallythinkofitsnegativeeffects.Studies,though,showthatmoderatelevelsofstr essareactuallyhelpful.Infact,thewayweperformisusuallyaffectedbytheamountofstr esswefeel.Str esscausesthebraintoreleaseadrenaline(肾上腺素)whichinturnincreasesourenergyandexcitement.Thechemicalgivesusclearermindsandhelpsustodomore.Thisiswhysomepeoplesaytheyworkbetterunderadeadline.Adrenalinethatisnotr eleasedforlongperiodsoftimecancauseustoincreaseandstr engthenourabilitiesinsteadofweakeningthem.Wesometimesturnoutourverybestworkwhenwepushourselvestothelimit.Str esscanalsomakeusmoreconfident.Handlingsmallamountsofstr essnowpreparesusforhandlingserioussituationsinthefuture.Whoknows?Today'sstr essmayevenprepareforthenextpolarbearthatcomesalong!55.Inthefirstparagraph,thecaseofLydiaAngyiouismentionedto______.A.intr oducethetopictobefollowedB.praiseLydiaAngyiouforherbraveryC.remindusoftheunexpecteddangeroflifeD.showtheimportanceofsuper-humanstr ength56.Whatd oesthepolicemanprobablymeanbysaying"yourbackisupagainstthewall"?[A.Youarehelped.B.Youareinspired.C.Youareconfident.D.Youarecornered.57.Whatwouldbethebesttitleforthepassage?A.BraveMotherB.TheCauseofStr essC.TheBenefitofStr essD.Super-humanStr ength
