高考概要写作SummaryWriting 阅读下面短文 根据其内容写一篇60词左右的内容概要 Feedingtheworld spopulationisabigchallenge anditisabouttogetbigger Rightnow alittlemorethan7 3billionpeoplesharetheplanet By2050 somescientistsestimate theworld spopulationmayreach9billion However thechangingclimatewillprobablymakefeedingthisfargreaternumberaveryfrighteningtask Thatistheconclusionreachedbysomescientists Justthreecrops wheat riceandcorn providemorethantwo thirdsofthecaloriesthatpeopleconsume Suchcrops andasmallnumberofotherimportantcrops comefromfarmingregionssometimesreferredtoas breadbaskets However theseareasoftenoccupyarelativelysmallportion 部分 oftheglobe Worsestill thebreadbasketsareeasilyaffectedbybadweather Eventssuchaswidespreadfloodingorextendedheatwavecankillcrops That sespeciallytrueifthebadweatheroccurswhenacropisyoung fruitingorapproachingharvest Unfortunately bigcropfailuresintwoormorebreadbasketscouldleadtowhatresearcherscalla foodshock Thatmeansanoverallshortageoffoodwouldoccur Extremefoodshocksusedtohappeneverycentury Ortoputitanotherway that sonlyaboutonceinveryfourgenerationsofhumans However accordingtostudies astheclimatewarms highandlowtemperaturesbecomemoreextreme andby2050 foodshockscouldoccuraboutonceevery30years Inotherwords apersonborninthemiddleofthecurrentcenturymightlivethroughtwoorthreeextremefoodshocksduringtheirlifetime Sowhatcanpeopledotohelpavoidfoodshocks Makingagricultureefficientisonechoice Butoneofthemosteffectivewaystofightagainstfoodshocksmightbetocutdownonfoodwaste Ifwecouldcutfoodwasteinhalf saidSethCook aBritishenvironmentalscientist wecouldfeedanextrabillionpeople 3 addsometransitionalwordstomakethepassagesmooth 1 Findoutkeyinformationofeachpara 2 Rewritethekeyinformation Expressthesamemeaningusingyourownwords phrasesorstructures Concise 60 70words Step1 Carefulreadingforthekeywords phrasesorsentencesineachparagraphUnderlineorcirclethekeyinformation Para 1 Feedingtheworld spopulationisabigchallenge anditisabouttogetbigger Rightnow alittlemorethan7 3billionpeoplesharetheplanet By2050 somescientistsestimate theworld spopulationmayreach9billion However thechangingclimatewillprobablymakefeedingthisfargreaternumberaveryfrighteningtask Thatistheconclusionreachedbysomescientists Para 1 Feedingtheworld spopulationisabigchallenge anditisabouttogetbigger Rightnow alittlemorethan7 3billionpeoplesharetheplanet By2050 somescientistsestimate theworld spopulationmayreach9billion However thechangingclimatewillprobablymakefeedingthisfargreaternumberaveryfrighteningtask Thatistheconclusionreachedbysomescientists Para 1 Feedingtheworld spopulationisabigchallenge anditisabouttogetbigger Rightnow alittlemorethan7 3billionpeoplesharetheplanet By2050 somescientistsestimate theworld spopulationmayreach9billion However thechangingclimatewillprobablymakefeedingthisfargreaternumberaveryfrighteningtask Thatistheconclusionreachedbysomescientists Para 1 Feedingtheworld spopulationisabigchallenge anditisabouttogetbigger Rightnow alittlemorethan7 3billionpeoplesharetheplanet By2050 somescientistsestimate theworld spopulationmayreach9billion However thechangingclimatewillprobablymakefeedingthisfargreaternumberaveryfrighteningtask Thatistheconclusionreachedbysomescientists Para 2 Justthreecrops wheat riceandcorn providemorethantwo thirdsofthecaloriesthatpeopleconsume Suchcrops andasmallnumberofotherimportantcrops comefromfarmingregionssometimesreferredtoas breadbaskets However theseareasoftenoccupyarelativelysmallportion 部分 oftheglobe Worsestill thebreadbasketsareeasilyaffectedbybadweather Eventssuchaswidespreadfloodingorextendedheatwavecankillcrops That sespeciallytrueifthebadweatheroccurswhenacropisyoung fruitingorapproachingharvest Para 2 Justthreecrops wheat riceandcorn providemorethantwo thirdsofthecaloriesthatpeopleconsume Suchcrops andasmallnumberofotherimportantcrops comefromfarmingregionssometimesreferredtoas breadbaskets However theseareasoftenoccupyarelativelysmallportion 部分 oftheglobe Worsestill thebreadbasketsareeasilyaffectedbybadweather Eventssuchaswidespreadfloodingorextendedheatwavecankillcrops That sespeciallytrueifthebadweatheroccurswhenacropisyoung fruitingorapproachingharvest Para 2 Justthreecrops wheat riceandcorn providemorethantwo thirdsofthecaloriesthatpeopleconsume Suchcrops andasmallnumberofotherimportantcrops comefromfarmingregionssometimesreferredtoas breadbaskets However theseareasoftenoccupyarelativelysmallportion 部分 oftheglobe Worsestill thebreadbasketsareeasilyaffectedbybadweather Eventssuchaswidespreadfloodingorextendedheatwavecankillcrops That sespeciallytrueifthebadweatheroccurswhenacropisyoung fruitingorapproachingharvest Para 3 Unfortunately bigcropfailuresintwoormorebreadbasketscouldleadtowhatresearcherscalla foodshock Thatmeansanoverallshortageoffoodwouldoccur Extremefoodshocksusedtohappeneverycentury Ortoputitanotherway that sonlyaboutonceinveryfourgenerationsofhumans However accordingtostudies astheclimatewarms highandlowtemperaturesbecomemoreextreme andby2050 foodshockscouldoccuraboutonceevery