Unit2 Working the land.阅读理解AThehealthofmillionscouldbeatriskbecausesuppliesofmedicinalplantsarebeingusedup.Theseplantsareusedtomaketraditionalmedicine,includingdrugstofightcancer. “Thelossofmedicinalplantsisaquietdisaster,” saysSaraOldfield,SecretaryGeneraloftheNGOBotanicGardensConservationInternational.Mostpeopleworldwiderelyonherbal(药草制的)medicineswhicharegotmostlyfromwildplants.Butsome15,000ofthe50,000medicinalspeciesareunderthreatofdyingout,accordingtothereportfromtheinternationalconservationgroupPlantlife.ShortageshavebeenreportedinChina,India,Kenya,Nepal,TanzaniaandUganda.“Over-harvestingdoesthemostharm,thoughpollutionandcompetitionfrominvasivespecies(入侵物种)andhabitatdestructionallcontribute.Businessmengenerallyharvestmedicinalplants,notcaringaboutsustainability(可持续性),” thePlantlifereportsays. “Damageisseriouspartlybecausetheyhavenoideaaboutit,butitismainlybecausesuchcollectionisunorganized.” MedicinaltreesatriskincludetheHimalayanyew(紫杉)andtheAfricancherry,whichareusedtotreatsomecancers.Thesolution,saysthereport􀆳sauthor,AlanHamilton,istoencouragelocalpeopletoprotecttheseplants.TenprojectsstudiedbyPlantlifeinIndia,Pakistan,China,Nepal,UgandaandKenyashowedthismethodcansucceed.InUganda,theprojecthaskeptasustainablesupplyoflow-costcancertreatments,andinChinaapublic-runmedicinalplantprojecthasbeencreatedforthefirsttime.“Improvinghealth,earninganincomeandkeepingculturaltraditionsareimportantinencouragingpeopletoprotectmedicinalplants,” saysHamilton, “Youhavetopayattentiontowhatpeopleareinterestedin.”GhilleanPrance,theformerdirectoroftheRoyalBotanicGardens,KewinLondon,agreesthatmedicinalplantsareinneedofprotection. “Notnearlyenoughisbeingdone,” hetoldNewScientist. “Wearedestroyingtheveryplantsthatareofmostusetous.”1.Whatcanwelearnfromthefirsttwoparagraphs?A.Millionsofpeoplearethreatenedwithcancer.B.Mostcountriesseeashortageofherbalmedicines.C.Abouttwothirdsofmedicinalspecieswilldisappear.D.Anumberofmedicinalspeciesareindangerofextinction.2.Whatisthemajorfactorthatcausesthedecreasingofsuppliesofmedicinalplants?A.Over-harvesting.B.Habitatdestruction.C.Pollution.D.Invasivespecies.3.Whatdoestheunderlinedword “it” inParagraph3referto?A.Pollution.B.Otherspecies􀆳invasion.C.Sustainability.D.Over-harvesting.4.Whatcanbeinferredfromthepassage?A.Protectingmedicinalplantshasalongwaytogo.B.Localpeopledon􀆳tknowhowtoprotectmedicinalplants.C.GhilleanPranceisoptimisticaboutmedicinalplants􀆳future.D.Chinahasmadegreatprogressinprotectingmedicinalplants.BOurmotherearthisgoingthroughaverytoughsituationandwe,theentirehumanrace,aredestroyingourenvironmentconsciouslyorunconsciouslywithoutevenrealizingitsconsequences.Nowwehavetoactverysmartandplansomethingtosustain(保持)whatwestillhave,gettingallnecessarysupportfromnaturetoleadhealthylives.Gardeningisalwaysanexcellentandenvironment-friendlyidea.Ifyoucangoforsustainablegardening,thenitwillbeevenmoreusefulforall.Gardeningisafavouritehobbyformany.Itistimetochannelizeyourhobbytowardsamoremeaningfulmotivation.Whenwedogardeningweneedtousedifferentingredientstogrowplants.Someofthemarenaturalresourceslikewater,landscape,soil,sunshine,andmanythingslikethese.Usingtheseresourcessmartlyisapartofsustainablegardening.Somesimpletechniquesinclude:uselesswaterandorganicthingstogrowplants;trytostorerainwatersothatyoucanusethemforgardening;tryusinglessenergy-drivendevices;avoidusingplasticsinanyformwhilegardening;reusetheleavesfromyourgardentofertilizethem.Thesearethebasicsustainablemeasures.Todosoweneedtohaveproperknowledgeaboutgardeninganditsrequirementssothatwecanuseproperresourceswithoutwastinganyofthem.Intoday􀆳sbusylifewedon􀆳tgetmuchtimetospendonourenvironment.Gardeninggivesusachancetodoso.Wecanalsohavesomepesticide-freeandfreshfoodifwegrowtheminourgarden.Thisistherighttimetodosomegoodtoprotectourownenvironmentandgardeningisoneoftheeasiestways.Doyouwanttostartgardening,butyou􀆳renotsurehow?Clickhere:http:/www.gardenhowto.com.5.Whatdoestheunderlinedword “channelize” inParagraph2referto?A.Cause.B.Transform.C.Direct.D.Associate.6.Whichofthefollowingbelongstoasustainablemeasure?A.Useadvancedelectricalmachines.B.Avoidfertilizers.C.Waterplantswithcollectedrainwater.D.Clearawaytheleaves.7.Whatisthebenefitofsustainablegardening?A.Itrequireslittlewater.B.Itneedsnofertilizer.C.Itbreaksupplastics.D.Itconsumeslessenergy.8.Whereisthepassageprobablytakenfrom?A.Anewspaper.B.Internet.C.Aguidebook.D.Asciencereport.语法填空阅读下面短文,在空白处填入1个适当的单词或括号内单词的正确形式。Iplantedarosegarden.Mydadvisitedusnottoolongafteronahotsummerday.He1.(seat)intheshadeofanappletree,sippinglemonade. “Sorry,” hesaid, “Ican􀆳tgardenwithyou.” He􀆳dhadphysicalproblems2.(late).“Youcangivemesometips,” Ireplied.“You􀆳rea3.(good)gardenerthanIeverwas,” hetoldme.Inearlyburstintotears. “Nottrue,” Isaid4.achokedvoice. “Besides,youtaughtmeeverythingIknow.”Heabsorbedthatforaminute,thensaid, “Well,whydon􀆳t5.trymovingthatoneover