高一英語(yǔ)學(xué)案：習(xí)題點(diǎn)撥Workingtheland

學(xué)必求其心得，業(yè)必貴于專精學(xué)必求其心得，業(yè)必貴于專精學(xué)必求其心得，業(yè)必貴于專精教材習(xí)題點(diǎn)撥COMPREHENDINGAnswerstoExercise1：Name：YuanLongpingNationality:ChineseAge:81(asof2011)Occupation:scientist/farmerEducation：graduatedfromSouthwestAgriculturalCollegeDream：toexporthishybridricesothatitcanbegrownaroundtheglobeAchievement：in1974，developedhybridricewhichproduces1/3morethannormalriceHobbies：listeningtoviolinmusic，playingmah。jong，swimmingandreadingSuggestedanswerstoExercise2:1Evenwhenhewasayoungman，heknewhowimportantitwastoproducebiggerricecrops。2Duringhisearlyyears，muchofthecountrysidewastroubledbyhunger.3Astheyusehishybridrice,farmersareproducingtwiceasmuchriceasbefore。4Heisnotinterestedinbuyingthingsforhimselforinhavingacomfortablelife。5Itdoesnotcostanythingtodreamforsomething。SuggestedanswerstoExercise3：1YuanLongpingwantedtoincreasethericeoutputbecausehesawmanypeoplegohungrywhenhewasyoung.2Ithinkheismoreofascientist，althoughheworksinthefieldslikeafarmer.Hismainpurposeisnottomakeaprofitforhimselfbuttostudyagricultureandusethatknowledgetoimprovefarmingforfarmerseverywhere.Idonotthinkheisabusinessman，becausehisgoalisnottomakemoney.3Becauseofhisworkwithdevelopinghybridrice,itseemsthatYuanLongpingmustbeaverypatientandcarefulman.Hedidn’tgiveupbutkeptworkingonhisproject。Healsoseemstousehisinventiontohelphungrypeoplearoundtheworld.4IthinkYuanLongpingwassuccessfulbecausehekeptworkinganddidnotgiveup.Healsogrewupinapoorfamily，sohewasverymotivatedtosucceedandhelpotherfarmersaroundChina。5Imostlyagree。Ithinkbeingrichcancausealotofproblems，butitreallydependsonthelifeandattitudeofthepersonwhoisrich。Peoplewhoarerichcertainlyhavedifferentproblemsfrompeoplewhoarenot。6Ithinkdevelopingotherhybridgrainswouldmakeagreatdifferenceintheproblemofworldhunger.HybridgrainsthatcansurviveinverydryorveryhotareaswouldbeveryusefulinAfricaandotherareas.Hybridgrainsthatcannoteasilybekilledbyinsectsanddiseaseswouldbeusefularoundtheworld。LEARNINGABOUTLANGUAGEDiscoveringusefulwordsandexpressionsAnswerstoExercise1:1sunburnt2rid。..of3expand4circulate5wouldrather6struggle7export8satisfiedwith9equip10crops11thankstoAnswerstoExercise2：1statistics,globe2super，nationalities3Hunger，disease4Vietnam,occupations5freedom，exportedAnswerstoExercise3：decade，struggle,expanding,Equipped，output，grain，crops，battles，disturbingDiscoveringusefulstructuresAnswerstoExercise1：Subject：Sincethen,findingwaystogrowmorericehasbeenhislifegoal。Objectofpreposition:Asayoungman，hesawthegreatneedforincreasingthericeoutput。Objectofpreposition：YuanLongpingsearchedforawaytoincreasericeharvestswithoutexpandingtheareaofthefields.Objectofverb：Heenjoyslisteningtoviolinmusic,playingmah-jong,swimmingandreading.Subject：Spendingmoneyonhimselforleadingacomfortablelifealsomeansverylittletohim。Subject：Justdreamingforthings，however，costsnothing。Objectofpreposition:Heawokefromhisdreamwiththehopeofproducingakindofricethatcouldfeedmorepeople.AnswerstoExercise2：1Helpingpeopleinneedofhelpisnice.2Growingsuperhybridriceisnoteasy.3Learningmoreaboutfarmingisnotdifficult.4Doingresearchinthecountrysideisnotaseasyasinthecity.5GettingridofhungerisveryimportantforsomeAfricancountries.6Explainingthisagainisimportantorwewillconfusethestudents。AnswerstoExercise3：1stgroup：todo2ndgroup：doing1stgroup：promise，fail,hope,afford，plan2ndgroup:enjoy，finish,mind，miss，keep3rdgroup:try，stop，begin,forget，like,startAnswerstoExercise4：1tosee2learning3having4toexperiment5tryingout6tofindout7todevelop8tofail9owning10sendingUSINGLANGUAGEReadingSuggestedanswerstoExercise1：1Theyareagreatwaytostopcropdiseaseandincreaseproduction.2Theycandamagethelandbykillinghelpfulbacteriaandpestsandbystayinginthegroundandundergroundwaterforalongtime.Theydamagepeople'shealthbybuildingupintheirbodiesandleadingtocancerorotherillnesses。3Organicfarmingmeansgrowingcropswithoutusinganychemicals。4Themainreasonforusingorganicfarmingmethodsistogrowgoodfoodandtoavoiddamagingtheenvironmentorpeople'shealth.SuggestedanswerstoExercise2：MethodsoforganicfarmingAdvantagesofmethods1Farmersusenaturalwastefromanimals。2Farmersoftenchangethekindofcropineachfieldeveryfewyears。3Farmersplantcropswithdifferentlengthsofroots。4Farmerssometimesplantgrassbetweencropsandleaveitintheground.1Thismakesthesoilricherinmineralsandsomorefertile。2Changingthecropsrenewsthemineralsinthesoilandhelpsitbecomerichandhealthy.3Thisusesdifferentlevelsofsoil。4Thispreventswindorwaterfromcarryingawaysoilandactsasanaturalfertilizer。SuggestedanswerstoExercise3:Step1:mainideaChemicalfertilizerscancausemanyproblems，soorganicfarmingisbecomingmorepopular.Step2：underliningandrewordingtopicsentencesParagraph1：Recently，however,scientistshavebeenfindingthatlong。termuseofthesefertilizerscancausedamagetothelandand，evenmoredangerous，topeople'shealth?！鶬nrecentdays，scientistshavediscoveredthatusingchemicalfertilizersforalongtimecanhurtthelandandalsopeople’shealth.Paragraph2：Whataresomeoftheproblemscausedbychemicalfertilizers?→Thereareseveralproblemscausedbychemicalfertilizers。Paragraph3：Withthesediscoveries，somefarmersandmanycustomersarebeginningtoturntoorganicfarming?！鶲rganicfarmingisbecomingmorepopularwithsomefarmersandmanycustomersafterthesediscoveriescameout.Paragraph4：Organicfarmersalsousemanyothermethodstokeepthesoilfertile.→Therearemanyorganicfarmingmethodsformakingthelandhealthyandproductive。Step3：writingasummaryInrecentdays，scientistshavediscoveredthatusingchemicalfertilizersforalongtimecanhurtthelandandalsopeople'shealth。Thereareseveralproblemscausedbychemicalfertilizers.Theyhurtthehealthoftheland，stayinthewaterforalongtimeandgetintopeople'sbodiesthroughtheirfood.Organicfarmingisbecomingmorepopularwithsomefarmersandmanycustomersafterthesediscoveriescameout.Organicfarmingdoesnotuseanychemical。Therearemanyorganicfarmingmethodsformakingthelandhealthyandproductive.Allofthesemethodstrytoproducegoodfoodtokeeptheenvironmentandpeoplehealthy。Step4：swappingsummariesandcheckingthemListeningLISTENINGTEXTWHAT'SWRONGWITHTHEVEGETABLES?GIRL：Hey，Paul，listentothis..。amagazinearticleaboutafarmerwhousedtoomuchchemicalfertilizeronhisfields。Whenhisvegetableswerepicked，theywereallfoundtobeempty！BOY:Empty?You’rejoking,Carrie.。。thatcan’tbetrue!GIRL：Ididn'tbelieveiteither！Thisarticlesaysthiscanhappensometimeswithvegetableslikecucumbers，carrotsandpumpkins。Thechemicalfertilizermakesthevegetablesgrowfasttolookbigandbeautiful，butthey’reemptyinside！BOY：Youknow，I'venoticedthatsometimesmymumbuyscarrotsfromthesupermarketthathavebigholesdownthecentre。Iguessthatmustbefromusingchemicalfertilizers！GIRL：Yeah，that’swhatthemagazinesays！Themainpointofthearticle，though，isn’taboutholesinourvegetables.It’stalkingaboutwhythefruitandvegetablesweeattodayaren'tasnutritiousastheonesourgrandparentsate。BOY：What？Mymumisalwaystellingmetoeatmorevegetables，becausethey’regoodforme!GIRL：Yeah,Iknow—mymothersaysthatsamething!Andit'strue—theyaregoodforus.。.buttheproblemisthattheyaren’thealthyenough!Allthesechemicalfertilizers—theykilloffboththebadANDthegoodthingsintheground.Thegrounddoesn'thaveenoughvitaminsandmineralsanymoretohelpcropsgrowhealthy。BOY：So..。ifourfruitandvegetablesweregrownwithchemicalfertilizers，theymightLOOKhealthy,butprobablyaren'tREALLYhealthy？Iguesswe'vegottostopusingsomanychemicalfertilizerstogrowourfood！________________________________________________________________________SuggestedanswerstoExercise1：Thepossiblebadeffectsofchemicalfertilizersonthefruitandvegetablesthatweeattoday.AnswerstoExercise2：1True2False3True4True5FalseWORKBOOKLISTENINGLISTENINGTEXTFIGHTINGGROWINGDESERTSWhydowehavedesertstoday？Desertshavenotalwaysbeenhere.Mostdesertsthatwehavetodaywereoncegreenlandsfullofplantlife.Oneoftoday’sbiggestdesertsisinNorthAfrica.However，inthe1stcenturyBCfarmsinNorthAfricagrewcornandwheattomakebreadforthewholecityofRome。Howdidthisareabecomedesert？Bothweatherandpeoplecanhelpformadesert.Hotweatherorverylittlerainmakesthelandsodrythatnothingcangrow.Ifpeoplecutdownorburntreesandplantstomakelandclearforfarming，thewindcanblowthesoilawayandturnthedrylandintosand.Anotherbigproblemisfarmingonlandthatisnotverygood.Thispoorlandcanveryquicklyturnintodesert，ifitisfarmedtoomuch。Oneofthebiggestcauses,however，iswhenpeopletaketheiranimalstofeedoverandover，andthefieldsfinallylosealltheirnutrition。Becauseoftheseproblems，desertsareslowlytakingovergreenlandinmanypartsoftheworld，includingChina。However，wecanfightthegrowingdeserts！InsomepartsofChinapeopleareworkingtopreventdesertfromexpanding.InXinjiang，forexample，somefarmsaretryingnewscientificfarmingmethods。Thesemethodsmakeitpossibletouselesslandforcrops,sofarmerscanplanttreesontherestoftheirland！OneXinjiangfarmer，usedonlyHALFofhisfieldstogrowthesameamountofcropsaslastyear。Ontheotherhalfofhisland，heplantedfruittrees.Theworkofpeoplelikethisishelpingtofighttheworld’sgrowingdeserts.AnswerkeyforExercise1：1,2,3,6AnswerstoExercise2:1B2A3USINGWORDSANDEXPRESSIONSAnswerstoExercise1：circulate→circulationconfuse→confusiondiscover→discoveryequip→equipmentexpand→duce→productionbattle→ment→commentexport→exportfocus→focusregret→regretstruggle→strugglesum→sum1circulated2focus，export3commented，regret4struggled，confusing5equipAnswerstoExercise2：chemicals，pests，bacteria，production，soil,discoveries，chemicals,minerals,nutrition，root,focusSuggestedanswerstoExercise3：1Today’slessonsfocusesonhowtowriteasummaryofanewsarticle.2Wemustskimthereporttofindthemainidea。3Theteachertoldustounderlinethedifficultwordsandlookthemupinthedictionary.4Hesaidthatdetailslikestatisticsshouldnotbeincluded.5IthinkI’mgoingtouseareportabouthowfarmersarekeepingtheirfieldsfreeofchemicalfertilizers。6Ittookthefarmertwentyyearstobuilduphisbusiness。7Usingtoomuchchemicalfertilizerwillleadtoseriousproblems.USINGSTRUCTURESAnswerstoExercise1：1Smoking2paying3getting4Learning5playing6Doing7Using8dancing9exchanging10supplyingAnswerstoExercise2：todie,tomake，fighting，toencourage，tomanage，toleavetospend/spending，working，ploughing，turning，tofind，workingLISTENINGTASKLISTENINGTEXTANCIENTFARMINGAROUNDTHEWORLDFarmingstartedearlyinmanyplacesaroundtheworld.SomeofthetraditionalfarmingmethodsstillknownandusedtodayweredevelopedbytheancientcultureofSummerintheMiddleEast.Farmersthereusedteamsofoxenforploughingthefieldsandhadspecialmethodstowatertheirfields。Theseandotherfarmingmethodsmadeitpossibleforthecountrytohavelargearmies，whichhelpedspreadtheirculture.CultureinEgyptdevelopedforsimilarreasons.TheEgyptiansdevelopedanamazingsystemofwateringfieldsfromtheirgreatriver，theNile。TheabilitytofeedmanypeoplefromverylittlelandaroundtheNilehelpedEgyptbuildalargeandstrongcountry。TheEgyptians'watersystemswerecopiedanddevelopedbyfarmersaroundtheworld.Cropssuchastomatoes,potatoes，peppers，somekindsofbeansandseveralotherplantsweredevelopedintheWest.ThenativepeopleinNorthAmericausedafarmingmethodcalled“thetreesisters"．Thesethreevegetables,beans，cornandsquash，aregrowntogether。Thishelpsthesoilstay