Thefutureofpinnipeds（鳍足动物）looksmuchbrightertodaythanitoncedid.Atonetimeabout100yearsagoitseemedcertainthatmanypinnipedsintheworldwouldbedestroyedbyhumanhunters.Todayitappearsthat
Thefutureofpinnipeds（鳍足动物）looksmuchbrightertodaythanitoncedid.Atonetimeabout100yearsagoitseemedcertainthatmanypinnipedsintheworldwouldbedestroyedbyhumanhunters.Todayitappearsthatmostspeciesofpinnipedsareoutofdanger.
Huntingwasnotcontrolledduringthe18thand19thcenturiesbecauselittlewasknownaboutthelivesofpinnipeds.Whalesandpinnipedswerehuntedfortheoilfromtheirbodyfat.Thisoilwasusedinlampsbeforeelectriclightswereinvented.Millionsofsealsandotherpinnipedswereusedtoprovideoilforthelampsoftheworld.Asaresultthenumbersofmanypinnipedspeciesfellrapidly.
Severalthingshappenedthathelpedtosavepinnipeds.Firstspeciesthatwerehuntedtonearextinctionwereleftalonebecausetheirnumbersweretoolowandthecostofhuntingthemwentupgreatly.Atthesametimeelectriclightswereinventedandthemarketforsealoilbecamesmaller.Finallygovernmentsaroundtheworldmadelawstoprotectpinnipeds.
Asaresultofallthesethingsthenumbersofmostpinnipedspecieshavegrowninrecentyears.WithsomespeciessuchasNorthernfursealstheremaybeasmanyanimalsalivetodayastherewerebeforeallthehuntingbegan.
Howeveroilisstilla.dangertopinnipedsandallseaanimals.Butthistimeit'snotbecausetheyarehuntedfortheiroil.Theoilthatputsthemindangerisfromoilspills（泄漏）inthesea.Theoilcoverstheirfurandreducestheirbodytemperatures.Oilalsostickstothefoodstheyeat.Thismoderndangertopinnipedsandtheirenvironmentisonewemustworktoprevent.
60.WhatdoesParagraph3mainlytalkabout?
A.Howelectriclightswereinvented.
B.Whenpeoplebegantoprotectpinnipeds.
C.Whatgovernmentsaroundtheworldhavedonetosavepinnipeds.
D.Whythenumbersofsomepinnipedshaveincreased.
61.Itcanbelearnedfromthetextthat__________.
A.themarketforsealoilisgrowing
B.Northernfursealsaren'tinmuchdangernow
C.oilspillsarethebiggestproblemforpinnipeds
D.stricterlawsneedtobemadetoprotectpinnipeds
62.Inwhichpartofamagazinecanwemostprobablyreadthistext?
A.Wildlife B.Lifestyle