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1、Unit7TheSea阅读理解AVinegarmakessalad,friesanddumplingstastebetter,andyoucanevenuseittocleanyourwindows.Andnow,accordingtoscientists,itmayeventheplanet’spopulationsurviveclimatechange.ResearchersfromtheRIKENCenterforSustainableResourceScience(CSRS)inJapanfoundthatgrowingplantsinvinegarmakesthemmorere
2、sistanttodroughts.Thiscouldmeanthatinthefuture,worriesaboutclimatechangeaffectingtheworld’ssupplyoffoodwillbemuchlower.ThediscoverywasmadeaftertheresearchersstudiedtheArabidopsis,aplantknownforitsabilitytosurviveindryweather.Itwasfoundthatwhentheplantwasplacedindrought-likeconditions,itproducedac
3、hemicalcalledacetate（醋酸盐）—themaincomponentofvinegar.Afterdiscoveringthis,thescientistsexperimentedfurtherbyaddingacetatetothesoilofotherplants,beforetheystoppedgivingthemwatercompletely.Afterleavingtheplantsfor14days,theyfoundthattheonestreatedwithacetatehadsurvived,whiletheuntreatedplantshaddrie
4、dupanddied.It’shopedthatthissimplemethodofsurvivalcouldsoonbeusedtohelpfarmersindrycountrieskeeptheircropsalive."Intheexperiment,wetargetedthestaplefoodsoftheworld—rice,wheatandmaize—andthebasicplantofbreedingspecies,rapeseed（油菜籽）,"JongMyongKim,co-authorofthestudy,toldPopularSciencemagazine.Kimal
5、sotoldthemagazinehe’salreadybeenintouchwithpeopleallovertheworldwhoareinterestedintryingthissimpleandcost-effectivemethodoutforthemselvesfromflowergrowingcompaniestoamateurgardeners.Althoughatthispointkeepingthirstyplantsaliveisn’taseasyasjustpouringvinegaroverthem,Kimsaidheandhisteamareworkingon
6、makingtheprocessassimpleaspossible."Nowwearetryingtocooperatewithsomefarmers,andalsosomecompanies,tomakeamethodtoapplythissystem,"hesaid.Andforthoseofuswhoalwaysforgettoaskourneighborstowaterourplantswhenwegoaway,hopefullythismeanstheendofreturninghomefromatriptofindourfavoriteflowershavedied.1.W
7、hatisthearticlemainlyabout?A.Theworld’sfoodsupplywillbeincreased.B.Plantsbettersurvivedroughts.C.TheArabidopsisisresistanttodroughts.D.Vinegarcouldbeusedtofightdroughts.2.Itwasdiscoveredthatacetatecan.A.beusedbyfarmers
