【答案】46.B47.C48.A49.B50.A51.B52.A53.C54.B55.C
附原文:
Whenpeoplethinkoftigers,theythink:stronganddangerous.Butnow,thebiganimaliscallingforourhelp.Therewereonceeightkindsof46_intheworld,butthreediedoutduringthe20thcentury.Inthelast70years,the47ofSiberiantigers(东北虎)hasgonefromasmanyas300to4822somewhere.TheSiberiantigerhasbeen49dyingoutcompletely.Ifthegovernmentdoesn'tmakeanyefforts,it'squite50thattherewillbenomoreSiberiantigersinChinaintentotwentyyears.Inordertodoublethenumberofwildtigersinthe_51_tenyears,theWorldWildlifeFund(世界自然基金会)hasstartedaprogramrecently.It_52__savewildtigersandputanendtotigerhuntingandkilling.China,togetherwithtwelveother__53______,hasjoinedin.Wildanimals,suchasreddeerandwildpigs,arethemain54ofthetigers.Thehuntingoftheseanimalsisthegreatestthreat(危险)totigers.Sothemostimportantthingis_55____theanimalsthattigerseat.Toprotectthewildtigers,weneedtocallonmorepeopletostopeatingandhuntingwildanimals.
46.A.pigsB.tigersC.deer
47.A.nameB.kindC.number
48.A.lessthanB.morethanC.biggerthan
49.A.inneedofB.indangerofC.infrontof
50.A.possibleB.impossibleC.necessary
51.A.lastB.nextC.past
52.A.aimstoB.usedtoC.refusesto
53.A.citiesB.provincesC.countries
54.A.friendsB.foodC.members
55.A.tosellB.tokillC.tosave