高考英语 概要写作公开课

高考概要写作SummaryWriting 1 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 2 3 addsometransitionalwordstomakethepassagesmooth 1 Findoutkeyinformationofeachpara 2 Rewritethekeyinformation Expressthesamemeaningusingyourownwords phrasesorstructures Concise 60 70words 3 Step1 Carefulreadingforthekeywords phrasesorsentencesineachparagraphUnderlineorcirclethekeyinformation Para 1 Feedingtheworld spopulationisabigchallenge anditisabouttogetbigger Rightnow alittlemorethan7 3billionpeoplesharetheplanet By2050 somescientistsestimate theworld spopulationmayreach9billion However thechangingclimatewillprobablymakefeedingthisfargreaternumberaveryfrighteningtask Thatistheconclusionreachedbysomescientists 4 Para 1 Feedingtheworld spopulationisabigchallenge anditisabouttogetbigger Rightnow alittlemorethan7 3billionpeoplesharetheplanet By2050 somescientistsestimate theworld spopulationmayreach9billion However thechangingclimatewillprobablymakefeedingthisfargreaternumberaveryfrighteningtask Thatistheconclusionreachedbysomescientists 5 Para 1 Feedingtheworld spopulationisabigchallenge anditisabouttogetbigger Rightnow alittlemorethan7 3billionpeoplesharetheplanet By2050 somescientistsestimate theworld spopulationmayreach9billion However thechangingclimatewillprobablymakefeedingthisfargreaternumberaveryfrighteningtask Thatistheconclusionreachedbysomescientists 6 Para 1 Feedingtheworld spopulationisabigchallenge anditisabouttogetbigger Rightnow alittlemorethan7 3billionpeoplesharetheplanet By2050 somescientistsestimate theworld spopulationmayreach9billion However thechangingclimatewillprobablymakefeedingthisfargreaternumberaveryfrighteningtask Thatistheconclusionreachedbysomescientists 7 Para 2 Justthreecrops wheat riceandcorn providemorethantwo thirdsofthecaloriesthatpeopleconsume Suchcrops andasmallnumberofotherimportantcrops comefromfarmingregionssometimesreferredtoas breadbaskets However theseareasoftenoccupyarelativelysmallportion 部分 oftheglobe Worsestill thebreadbasketsareeasilyaffectedbybadweather Eventssuchaswidespreadfloodingorextendedheatwavecankillcrops That sespeciallytrueifthebadweatheroccurswhenacropisyoung fruitingorapproachingharvest 8 Para 2 Justthreecrops wheat riceandcorn providemorethantwo thirdsofthecaloriesthatpeopleconsume Suchcrops andasmallnumberofotherimportantcrops comefromfarmingregionssometimesreferredtoas breadbaskets However theseareasoftenoccupyarelativelysmallportion 部分 oftheglobe Worsestill thebreadbasketsareeasilyaffectedbybadweather Eventssuchaswidespreadfloodingorextendedheatwavecankillcrops That sespeciallytrueifthebadweatheroccurswhenacropisyoung fruitingorapproachingharvest 9 Para 2 Justthreecrops wheat riceandcorn providemorethantwo thirdsofthecaloriesthatpeopleconsume Suchcrops andasmallnumberofotherimportantcrops comefromfarmingregionssometimesreferredtoas breadbaskets However theseareasoftenoccupyarelativelysmallportion 部分 oftheglobe Worsestill thebreadbasketsareeasilyaffectedbybadweather Eventssuchaswidespreadfloodingorextendedheatwavecankillcrops That sespeciallytrueifthebadweatheroccurswhenacropisyoung fruitingorapproachingharvest 10 Para 3 Unfortunately bigcropfailuresintwoormorebreadbasketscouldleadtowhatresearcherscalla foodshock Thatmeansanoverallshortageoffoodwouldoccur Extremefoodshocksusedtohappeneverycentury Ortoputitanotherway that sonlyaboutonceinveryfourgenerationsofhumans However accordingtostudies astheclimatewarms highandlowtemperaturesbecomemoreextreme andby2050 foodshockscouldoccuraboutonceevery30years Inotherwords apersonborninthemiddleofthecurrentcenturymightlivethroughtwoorthreeextremefoodshocksduringtheirlifetime 11 Para 3 Unfortunately bigcropfailuresintwoormorebreadbasketscouldleadtowhatresearcherscalla foodshock Thatmeansanoverallshortageoffoodwouldoccur Extremefoodshocksusedtohappeneverycentury Ortoputitanotherway that sonlyaboutonceinveryfourgenerationsofhumans However accordingtostudies astheclimatewarms highandlowtemperaturesbecomemoreextreme andby2050 foodshockscouldoccuraboutonceevery30years Inotherwords apersonborninthemiddleofthecurrentcenturymightlivethroughtwoorthreeextremefoodshocksduringtheirlifetime 12 Para 3 Unfortunately bigcropfailuresintwoormorebreadbasketscouldleadtowhatresearcherscalla foodshock Thatmeansanoverallshortageoffoodwouldoccur Extremefoodshocksusedtohappeneverycentury Ortoputitanotherway that sonlyaboutonceinveryfourgenerationsofhumans However accordingtostudies astheclimatewarms highandlowtemperaturesbecomemoreextreme andby2050 foodshockscouldoccuraboutonceevery30years Inotherwords apersonborninthemiddleofthecurrentcenturymightlivethroughtwoorthreeextremefoodshocksduringtheirlifetime 13 Para 4 Sowhatcanpeopledotohelpavoidfoodshocks Makingagricultureefficientisonechoice Butoneofthemosteffectivewaystofightagainstfoodshocksmightbetocutdownonfoodwaste Ifwecouldcutfoodwasteinhalf saidSethCook aBritishenvironmentalscientist wecouldfeedanextrabillionpeople 14 Para 4 Sowhatcanpeopledotohelpavoidfoodshocks Makingagricultureefficientisonechoice Butoneofthemosteffectivewaystofightagainstfoodshocksmightbetocutdownonfoodwaste Ifwecouldcutfoodwasteinhalf saidSethCook aBritishenvironmentalscientist wecouldfeedanextrabillionpeople 15 Para 4 Sowhatcanpeopledotohelpavoidfoodshocks Makingagricultureefficientisonechoice Butoneofthemosteffectivewaystofightagainstfoodshocksmightbetocutdownonfoodwaste Ifwecouldcutfoodwasteinhalf saidSethCook aBritishenvironmentalscientist wecouldfeedanextrabillionpeople 16 Step2 RewritethekeyinformationinourownwordsTip1 RewriteatthesentencelevelTip2 Rewriteatthewordlevel 17 Para 1 Feedingtheworld spopulationisabigchallenge anditisabouttogetbigger changethecompoundsentence并列句intoonesimplesentence简单句 changethesubject Feedingtheworld spopulationisa challenge isabiggerandbiggerchallengetofeedtheworld spopulation biggerand bigger It 18 changetheword world s changethephrase abiggerandbiggerchallenge Para 1 Itisabiggerandbiggerchallengetofeedtheworld spopulation Itisabiggerandbiggerchallengetofeedtheglobalpopulation Itis tofeedtheglobalpopulation challenging moreandmore 19 Para 1 Itismoreandmorechallengingtofeedthe globalpopulation addanadjective Para 1 Feedingtheworld spopulationisabigchallenge anditisabouttogetbigger Rightnow alittlemorethan7 3billionpeoplesharetheplanet By2050 somescientistsestimate theworld spopulationmayreach9billion However thechangingclimatewillprobablymakefeedingthisfargreaternumberaveryfrighteningtask Thatistheconclusionreachedbysomescientists increasing growing 20 Para 2 crops breadbaskets Theseareasoftenoccupyarelativelysmallportionoftheglobe simplifythesentence use manycrops asthesubject Breadbasketsareoften Manycrops on breadbaskets limited areoftengrown limited 21 Para 2 Thebreadbasketsareeasilyaffectedbybadweather changetheword affect Breadbasketsareeasily bybadweather Manycropsareoftengrownonlimitedbreadbaskets combinethetwosentences Para 2 Manycropsareoftengrownonlimitedbreadbaskets areeasilyimpactedbybadweather that which influenced impacted 22 Para 3 bigcropfailures couldleadto a foodshock Thatmeansanoverallshortageoffoodwouldoccur putthekeyphrasesintoonesentence combinethetwosentences Bigcropfailurescouldleadtoa foodshock Bigcropfailurescouldleadtoa foodshock meansanoverallshortageoffood that which Bigcropfailurescouldleadtoanoverallshortageoffood a foodshock called 23 Para 3 Bigcropfailurescouldleadtoanoverallshortageoffood calleda foodshock changethephrase leadto Bigcropfailurescouldcauseanoverallshortageoffood calleda foodshock resultin contributeto accountfor 24 Para 3 Unfortunately bigcropfailuresintwoormorebreadbasketscouldleadtowhatresearcherscalla foodshock Thatmeansanoverallshortageoffoodwouldoccur Extremefoodshocksusedtohappeneverycentury Ortoputitanotherway that sonlyaboutonceinveryfourgenerationsofhumans However accordingtostudies astheclimatewarms highandlowtemperaturesbecomemoreextreme andby2050 foodshockscouldoccuraboutonceevery30years Inotherwords apersonborninthemiddleofthecurrentcenturymightlivethroughtwoorthreeextremefoodshocksduringtheirlifetime Para 3 Foodshockscouldoccurmore inthefuture useoneadverb frequently often 25 Para 3 Bigcropfailurescouldcauseanoverallshortageoffood calleda foodshock Foodshockscouldoccurmorefrequentlyinthefuture combinethetwosentences Bigcropfailurescouldcauseanoverallshortageoffood calleda foodshock couldoccurmorefrequentlyinthefuture which 26 Para 4 Makingagricultureefficientisonechoice Butoneofthemosteffectivewaystofightagainstfoodshocksmightbetocutdownonfoodwaste changethesubjectofthesecondsentence Cuttingdownonfoodwasteisoneofthemosteffectivewaystofightagainstfoodshocks changethephrase cutdownon Reducingfoodwaste 27 Para 4 Makingagricultureefficientisonechoice Reducingfoodwasteisoneofthemosteffectivewaystofightagainstfoodshoc