高二英語寒假每日一題——第19題一、閱讀理解Vinegarisgreat.Itmakessalad,friesanddumplingstastebetter,andyoucanevencleanyourwindowswithit.Andnow,accordingtoscientists,itmayevenhelptheplanet’spopulationtoeasehunger.ResearchersfromtheRIKENCenterforSustainableResourceScience(CSRS)inJapanfoundthatgrowingplantsinvinegarmakesthemmoreresistanttodroughts.Thiscouldmeanthatinthefuture,worriesaboutclimatechangeaffectingtheworld’ssupplyoffoodwillbemuchlower.ThediscoverywasmadeaftertheresearchersstudiedtheArabidopsis,aplantknownforitsabilitytosurviveindryweather.Itwasfoundthatwhentheplantwasplacedindroughtlikeconditions,itproducedachemicalcalledacetate(醋酸鹽)—themainponentofvinegar.Afterdiscoveringthis,thescientistsexperimentedfurtherbyaddingacetatetothesoilofotherplants,beforetheystoppedgivingthemwaterpletely.Afterleavingtheplantsfor14days,theyfoundthattheonestreatedwithacetatehadsurvived,whiletheuntreatedplantshaddriedupanddied.It’shopedthatthissimplemethodofsurvivalcouldsoonbeusedtohelpfarmersindrycountrieskeeptheircropsalive.JongMyongKim,coauthorofthestudy,toldPopularSciencemagazinethathe’salreadybeenintouchwithpeopleallovertheworldwhoareinterestedintryingthissimpleandcosteffectivemethodoutforthemselvesfromflowergrowingpaniestoamateurgardeners.Althoughatthispointkeepingthirstyplantsaliveisn’taseasyasjustpouringvinegaroverthem,Kimsaidheandhisteamareworkingonmakingtheprocessassimpleaspossible.“Nowwearetryingtocooperatewithsomefarmers,andalsosomepanies,tomakeamethodtoapplythissystem.”hesaid.Andforthoseofuswhoalwaysforgettoaskourneighborstowaterourplantswhenwegoaway,hopefullythismeanstheendofreturninghomefromatriptofindourfavoriteflowershavedied.1．WhatismentionedasafeatureoftheArabidopsis?A.Itproducesacetateinwetconditions.B.Itismainlyposedofacetate.C.Itcansurviveinnowherebutdesert.D.Itcanbetolerantofdrought.2．Thescientistsexperimentedfurtherinorderto______.A.findasimplewayofkeepingthecropsoffarmersaliveB.addacetatetothesoilsofotherplantstostopwateringC.checktheeffectivenessoftheacetatetoresistdroughtD.treatthedriedupplantsbyaddingacetatetothem3．Whatistheauthor’sattitudetothediscovery?A.objectiveB.UnsupportiveC.IndifferentD.optimistic4．Whatmaybethebesttitleforthetext?A.VinegarcouldendhungerB.VinegarkeepsplantslivingforeverC.HowtosurviveclimatechangeD.Advantagesandfunctionsofvinegar二．語法填空AboutsixyearsagoIwashavinglunchinNewYorkCity1．a(chǎn)womanandayoungboysatdownatthenexttable.Icouldn'thelp2(overhear)partsoftheirconversation.Atonepointthewomanasked,"So,howhaveyoubeen?"Andtheboywhocouldnothavebeenmorethansevenoreightyearsoldreplied."3(frank),I'vebeenfeelingalittledepressedlately."Thisincident4(impress)memostbecauseitconfirmedmygrowing5(believe)thatchildrenarechanging.AsfarasIcanremember,myfriendsandIdidn'tfindoutwewere"depressed"6wewereinhighschool.Undoubtedly,7changeinchildrenhasincreasedsteadilyinrecentyears.Childrendon'tseemchildlikeanymore.Childrenspeak,dressandbehavemorelikeadults8theyusedto.9different.Childhoodadisdifficulttosay,butitcertainlyisdifferent.Childhoodasitoncewasnolonger10(exist).

參考答案一、閱讀理解【答案】14DCDA【解析】1．D由ThediscoverywasmadeaftertheresearchersstudiedtheArabidopsis,aplantknownforitsabilitytosurviveindryweather.Itwasfoundthatwhentheplantwasplacedindroughtlikeconditions,itproducedachemicalcalledacetate(醋酸鹽)—themainponentofvinegar.可知Arabidopsis的特點(diǎn)是可以忍受干旱，選D。2．C根據(jù)文章第四段的理解，可以得知進(jìn)一步實(shí)驗(yàn)的目的是為了檢驗(yàn)把醋酸鹽添加到植物中就能增加植物耐旱能力的有效性，選C。3．D由Andforthoseofuswhoalwaysforgettoaskourneighborstowaterourplantswhenwegoaway,hopefullythismeanstheendofreturninghomefromatriptofindourfavoriteflowershavedied.可知作者持樂觀態(tài)度。objective客觀的，Unsupportive不支持，Indifferent冷漠的，optimistic樂觀的，選D。4．A由全文的主題句Andnow,accordingtoscientists,itmayevenhelptheplanet’spopulationtoeasehunger.可知這篇文章主要講了醋可以使作物及植物在干旱的環(huán)境中生存，從而解決因糧食而造成的饑餓問題，選A。二、語法填空【答案】1．when2．overhearing3．Frankly4．impressed5．belief6．until7．a(chǎn)8．than9．whether10．exists【解析】1．句意為：六年以前，我在紐約市吃午餐，就在那時(shí)，一位女士帶著一個(gè)小男孩坐在我隔壁的桌子旁。所以填when。2．Couldnothelpdoing是固