阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项。SupposeyouareavisitorinthelandofMongolia（蒙古）,somefriendsaskyoutoeatwiththem.Whatkindofmannersdotheywantyoutohave?Theywantyoutogivealoudburp（打饱嗝儿）afteryoufinisheating.Burpingwouldshowthatyoulikeyourfood.Insomecountries,ifyougiveabigburp,youaretoldtosay“Excuseme,please”.Inmanyplacespeopleliketoeattogether.ButinsomepartsofPolynesiaitisbadmannerstobeseeneatingatall.Peopleshowtheirgoodmannersbyturningtheirbacksonotherswhiletheyeat.WhataremannerslikeinanEastAfricantown?Thepeopletrynottoseeyou.Theyarebeingpolite.Youmayseeafriend.Hemaynotseeyouatall.Ifyouarepolite,youwillsitdownbesidehim.Youwillwaituntilhefinisheswhatheisdoing.Thenhewilltalktoyou.Mannersaredifferentallovertheworld.Butitisgoodtoknowthatallmannersbegininthesameway.Peopleneedwaystoshowthattheywanttobefriends.1.InMongolia,burpingisawayofshowingthat__________.A.youareimpoliteB.youenjoyedthemealpreparedbythehostC.yourmealwasnotenoughD.youarefriendlywithyourhost2.However,insomecountries,ifyougiveabigburp,youaretoldtosay“________”A.I’mfullB.I’msorryC.IhavehadenoughD.Excuseme,please3.InPolynesia,tobepolitewhileeatingyoushould__________.A.eatquicklyB.sitstillC.turnyourbackonothersD.say“Bequick,please”4.PeopleinanEastAfricantownarebeingpoliteby__________.A.waitingforalongtimebeforevisitsB.sittingdownbesideothersC.seeingafriendquicklyD.tryingnottoseeyou5.Wehavegoodmannerstoshowthatwe__________.A.aredifferentfromotherpeopleB.don’twantotherpeopletoworryusC.beginallmannersinthesamewayD.wanttobefriendswithotherpeople【参考答案】1—5、BDCDD史地常识型阅读理解Morethan200scientistshavecompletedatwo­yearstudytoidentifythemostnaturalandundevelopedareasonEarth.TheirfindingsarereportedinanewbookcalledWilderness：Earth’sLastWildPlaces.Thebookdescribes37wildernessareasaroundtheworld.Eachhasanareagreaterthan10,000squarekilometers.Thestudyconsideredonlyareaswhereatleast70%ofallplantsarenative.NorthandSouthAmericaarehometothelargestnumberofwildernessareas.Thereare16suchareas,fromsouthernArge