新人教高一英语必修4 unit2 working the land 全套课件.ppt

,Unit2Workingtheland,Unit2Workingtheland,Warmingupandreading1,Haveyoueverbeentothecountryside?whatdidyoudothere?,WarmingupI(5ms)Answerthefollowingquestions:,Farming,Areyoufromafarmersfamily?whatdoyouknowaboutfarming?,soil,ploughing,crops,weatherSystemofProductionResponsibility;institute;sufferthefamine;Yield;UNESCO,FAO.,Takeabreak!,Takeabreak,1.WhatdoesDrYuanlooklike?2.Whatshisachievement?3.Whatdoyouthinkofhim?,Listentothetapeandanswerthefollowingquestions:,1.WhatdoesDrYuanlooklike?,Hehasasunburntfaceandarmsandaslim,strongbody.Heismorelikeafarmerthanascientist.,2.Whatshisachievement?,Hegrowswhatiscalledsuperhybridrice,whichmakesitpossibletoproduceone-thirdmoreofthecropinthesamefields.Usinghishybridricefarmersproducingharveststwiceaslargeasbefore.,3.Whatdoyouthinkofhim?,Hedoesntlikemoneybecausehegivesmillionsofyuantoequipothersfortheirresearchinagriculture.Hedoesntlikefametoothoughhehasmadegreatcontributionstotheworld.Hesreallyrespectable.,WhydidDrYuanwanttoincreasethericeoutputwhenhewasyoung?Howdoeshehelpridtheworldofhunger?WhatkindoflifeisDrYuanleading?UseafewwordstodescribeDrYuanspersonality.,SecondReading,Reading(8ms)Readthetextandanswerthefollowingquestions:,WhydidDrYuanwanttoincreasethericeoutputwhenhewasyoung?DrYuanwantedtoincreasethericeoutputbecausehesawmanypeoplegohungrywhenhewasyoung.,2.Howdoeshehelpridtheworldofhunger?Hehelpstheworldgetridofhungerbyproducingahybridstrainofricewhichincreasetheharvest.,3.WhatkindoflifeisDrYuanleading?DrYuanisleadingasimplelife,doinghisresearch,listeningtohismusicandridinghismotor-bike.,4.UseafewwordstodescribeDrYuanspersonality.DrYuanisasimple,academicmanwhoismoreinterestedinhelpingothersthanbeingfamous.,Detailreading(8ms),Pleasewritedownthesmallerheadinggivingalittlemoreinformationaccordingtothelargeheadingsasfollows:,Apioneerforallpeople,Largeheadings,Hewantseveryonetocallhimafarmer.,Ascientistworkstheland.Sunburntfaceandarms,slim,strongbody.Growhybridrice.Thefirstagriculturalpioneer.,Hisbiography.,In1931,hewasborn.,In1953,hegraduatedanddevotedhislifetofindingwaystogrowrice.,Lastyear,twentybilliontonsofricewasproduced.Now,DrYuaniscirculatinghiskownledge.,Hispersonality,Heissatisfiedwithhislife.,Whyishesatisfiedwithhislife?,Becausehedoesntlikemoneyandfame.,Thefirstdream.,Theseconddream.,Hisdreams,Doyouwanttoendthefamine(饥荒)intheworld?Ifyouhadthechancetodosomethingtohelpendhungerintheworld,whatwouldyoudo?,Discussion(8ms),Themeasurestakentodealwithhunger,Inventanewkindofplanttoproducemorefood.,Findasortoffertilizer(肥料)togivericeenoughnutrition.,Stopthepollutiontotheenvironmentandprotectthesoilinthefield.,Assignment,SurftheInternettofindmoreinformationaboutfarmingandyouareexpectedtopresentittoyourclassmatesinthenextclass.,Takeabreak!,Languagepointsforreading1,Ifso=Ifyouhaveevergrownsomeplants.so表示“象那样的，如前所说的”，用于代替已陈述的事。如：-canyoupasstheexam?-Ihopeso.,2.DrYuangrowswhatiscalledsuperhybridrice.,袁博士种植了被人称作超级杂交水稻的稻谷。,e.g.Idontquiteunderstandwhatyouareexplaining.PleasewatchwhatIamdoingcarefully.,What=thething(s)that,_theemperorsawwasquitedifferentfrom_theoldministertoldhim.A.What,thatB.That,whatC.Which,thatD.All,all,2.Itisprettywellunderstood_controlstheflowofcarbondioxideinandouttheatmospheretoday.A.thatB.whenC.whatD.how,3.Thisspecialstrainofricemakesitpossibletoproduceone-thirdmoreofthecropinthesamefields.,这种特殊的稻种使得同样的田地多收获三分之一的产量。,it在句中作形式宾语，真正的宾语为toproduce,结构为：动词（make,feel,think,regard）+it+adj+todo.,e.g.WethinkitimportanttolearnEnglishwell.,4.Borninapoorfarmersfamilyin1931,Dr.YuangraduatefromSouthwestAgricultureCollegein1953.袁博士1931年出身于一个贫苦农民的家庭，1953年毕业于西南农学院。,graduaten.apersonwhohascompletedauniversitydegreecourse.毕业生undergraduate本科毕业生post-graduate硕士毕业生，研究生,pleteaneducationalcourse.常跟介词from，表示“毕业于”,graduationn.毕业,e.g.Afterhisgraduationfromcollege,hewenttoworkasanengineerinacompany.,=Afterhegraduatedfromcollege,hewenttoworkasanengineerinacompany.,Supplement:bachelorsdegree学士学位mastersdegree硕士学位doctorsdegree博士学位,5.Sincethen,hehasdevotedhislifetofindingwaystogrowmoreandmorerice.从那以后，他就把毕生精力投入到水稻高产的研究中。,devoteoneselfto+n/doing献身于，致力于注意：to为介词，后面接v-ing.类似的短语还有lookforwardto,listento,getto,replyto,apologizeto,belongto,agreeto等等.,6.DrYuansearchedforawaytoincreasericeharvestwithoutexpandingtheareaoffields.,袁博士寻求一种在不扩大种植面积的情况下提高水稻产量的方法。,注意：search强调搜查，一般表示目标明确范围较小。searchsb搜身；searchspl搜查某地searchfor强调寻找，一般表示范围较大。searchforsb寻找某人,e.g.Thepolicesearchedthewoodsforthelostchild.,警察在树林里寻找失踪的小孩。,Scientistsarestillsearchingforacuretothecommoncold.,科学家们仍然在寻找普通感冒的治疗方法。,search/searchfor/insearchof,1.Theofficerwentup_themurder.2.Thethievesare_thehiddentreasureinthemuseum.3.Birdsflytothesouth_thewintersunshine.,tosearch,searchingfor,insearchof,7.Thankstohisresearch,theUNistryingtoridtheworldofhunger.,由于他的研究，联合国正在努力清除世界饥饿。,thanksto=becauseof;owingto,e.g._,wewonthegame.由于你的支持，我们赢得了比赛。,Thankstoyoursupport,8.Usinghishybridricefarmersareproducingharveststwiceaslargeasbefore.用他的杂交水稻种子，农民们种出比以前多一倍的粮食。,倍数词（twice/half/threetimes/aquarteretc.）+as+形容词原级+as表示“是的多少倍,e.g.Thenumberofthestudentsinourschoolis_intheirschool.我们学校学生的数量是他们学校的两倍。,twiceaslargeasthat,9.However,hecareslittleaboutspendingthemoneyonhimselforleadingacomfortablelife.但是他很少想到要把钱花在自己的身上，或享受舒适的生活。leadalife过生活。英语中少数动词，包括一些不及物动词的宾语可能是与它同源的名词类似的短语动词有：dieadeath,smileasmile,dreamadream,livealife,sighasighetc.,care(little/much)about-beconcernedabout关心，介意，后面跟从句时候，about常省略。,carefor-lookafter照料；likeorwant想要，喜欢,e.g.AlbertEinsteindidntcaremuchaboutwhattowear.WouldyouhelptocareformypetwhileIamaway?,10.DrYuanismoreafarmerthanascientist.与其说袁博士是一个科学家不如说他是一个农民。,bemorethan=notonly不仅仅，超过e.g.Learningismorethanreading.,bemore+A+than+B与其说是B还倒不如说是Ae.g.Heismoreanordinarypersonthanaleader.,Remembertoreviewtheknowledge!Seeyounexttime!,Takeabreak!,Learnaboutlanguage,Learningaboutlanguage,CheckinganswerI(3ms)AnswerkeysforEx.1onPage11:,sunburnt,hunger,ridof,expand,circulate,leadalife,thanksto,wouldrather,struggle,export,CheckinganswerII(3ms)AnswerkeysforEx.2onPage12:,prove2.wouldrather3.live4.life,5.rid6.of7.output8.increased9.sunburnt,CheckinganswerIII(2ms)AnswerkeysforEx.2onPage12:,super2.satisfied3.strain4.Exported5.suitable,Usefulstructure(30m),Theuseofthe-ingform,TheingformastheSubjectObject,1作主语动名词作主语时，句子有两种形式：动名词直接置于句首主语的位置上。1)捉弄别人是我们万万不能干的.Playingtricksonothersissomethingweshouldneverdo2)学习新单词对我来说非常重要。Learningnewwordsisveryimportantforme3)说比做容易。Talkingiseasierthandoing.,用形式主语it，把真正的主语动名词结构移置句尾。但这种句子形式有一定的限制，作表语的只能是某些形容词或少数名词，如useful，useless，good，fun；nouse，worth等。如：和夏洛克争辩是没有什么用的。ItisuselesstryingtoarguewithShylock这事值得去做。Itsworthmakingtheeffort想再解释一次有好处吗?Isitanygoodtryingtoexplain?跟你在一起工作是令人愉快的。Itispleasantworkingwithyou,在therebe结构中作主语，这种结构的意思相当于“Itisimpossibletodo”。例如：若要人不知，除非己莫为。Thereisnohidingofevilbutnottodoit这种事开不得玩笑。Hereisnojokingaboutsuchmatter.无法知道他什么时候离开Therewasnoknowingwhenhewouldleave.,动名词与不定式做主语时的比较：动名词表示的动作通常是一个泛指的动作，不定式则通常表示具体的动作。如：还是个孩子的时侯，她就觉得探视病人是一种责任，也是一种愉悦。Asachild，shefeltthatvisitingsickpeoplewasadutyandapleasure到美国人家里做客对我来说将是一个极好的经历。BeingaguestinanAmericanhomewillbeagoodexperienceforme.,一直不做就是作恶。Doingnothingisdoingill他说：“继续这样下去是无用的。”Hesaid，“Togoonlikethisisnouse”我很荣幸被邀请参加这个晚会。Itsanhonorformetobeinvitedtotheparty,归纳：常用-ing形式作主语的句型有：It+be+awasteoftimedoing做、是浪费时间的Itis/wasnogood/usedoing做、是没用处的Itis/washardly/scarcelyworthdoing做、不值得Itis/wasworth/worthwhiledoing做、是值得的Thereisnodoing无法、，不允许、,Thereisnosenseindoing做、没有道理Thereis/wasnousedoing干、无意义Thereis/wasnothingworsethandoing没有比、更糟的Thereis/wasnopointdoing干、无意义我们不知道要去哪儿。Therewasnoknowingwherewewouldgo.做这件傻事毫无意义。Thereisnopointdoingsuchasillything.,注意：Thereisnoneedtodosth干、没必要，在此句式中todo不可换为doing.没有必要告诉她。Thereisnoneedtotellher.提示：当动名词用作主语时，其逻辑主语由形容词性物主代词和名词所有格构成。我姐姐病了，使我很担心。Mysistersbeingillmadeweworried.你正确未必就意味着我错了。Yourbeingrightdoesntnecessarilymeanmybeingwrong.,2、用作宾语动名词作宾语有两种情况。一是有些动词只能后接动名词作宾语；二是有些动词既可后接动名词也可后接不定式作宾语。只能后接动名词作宾语的动词，常见的有avoid，consider，enjoy，keep，finish，suggest，dislike，delay，escape，cannothelp，imagine，mind，miss，practise，cannotstand等。如：我不能不去。Icantavoidgoing你是否考虑过找一位挚友?Haveyouconsideredlookingforonespecialfriend?,我们必须设法避免犯同样的错误。Wemusttrytoavoidrepeatingthesamemistake晚饭后你想和我一起散步吗?Doyoufeellikehavingawalkwithmeaftersupper?人们忍不住嘲笑那个愚蠢的人。Peoplecouldnthelplaughingfoolishman这类动词还有：excuse，fancy，giveup，putoff，risk等。,既可接动名词又可接不定式作宾语的动词，常见的有：begin，start，continue，like，love，prefer，by，mean，forget，remember，hate等。A在like，love，hate，prefer等动词之后，用-ing或不定式意义上没有什么不同，只是侧重点有些不同，动名词表示泛指的动作，不定式表示具体的一次性动作。B在begin/start，continue之后，用动名词和不定式，意义无甚区别，尤其是当主语是人的时候。,C在动词forget，remember，regret之后，用动名词与不定式意义不同。动名词表示动作先于谓语发生，不定式表示后于谓语动作，如：我记得我已把信寄了。Irememberpostingtheletter我会记着去寄信的。Illremembertoposttheletter我永远不会忘记见到过那位著名作家。Ishallneverforgetseeingthefamouswriter不要忘了给你母亲写信。Dontforgettowritetoyourmother我真后悔没赶上那次报告会。Iregretmissingthereport我遗憾地告诉你我不能接受你的建议。IregrettosayIcanttakeyouradvice,D在try，mean之后，意义各不相同，如trytodo(设法)，trydoing(试试)，meantodo(打算，有意要做)，meandoing(意思是，意味着)。如：我们必须设法及时把一切搞好。Wemusttrytogeteverythingdoneintime我们用别的方法做这工作试试。Letstrydoingtheworkinginsomeotherway我并不想叫你生气。Ididntmeantomakeyouangry你的计划意味着要花费几个小时。Yourplanwouldmeanspendinghours,Egoondoing和goontodoGoondoing继续做一直在做的事；goontodo接着做另一件事。如：请接着做这同一个练习。Pleasegoondoingthesameexercise请做另外一个练习。PleasegoontodotheotherexerciseFstopdoing与stoptodo:Stopdoing停止做，stoptodo停下正在干的事去干另一件事。如：我们停止了交谈。Westoppedtalking我们停了下来去谈话。Westoppedtotalk,3作介词宾语动名词可与介词一起构成介词短语。A介词+动名词，如：我们得想些法子改变人们的习惯。Wevegottothinkofwaysofchangingpeopleshabits.我向你道歉，刚才对你那样生气。Iapologizeforbeingsoangrywithyou.离开几年之后再回到你生长的地方，感觉有点怪。Afterbeingawayforseveralyears，itisastrangeexperiencetoreturntotheplaceyouwerebornandbroughtup,B动词+介词+动名词，如：我坚持为这次出行带足需要的食物。Iinsistontakingproperfoodforthisexpedition同学们脸上没有笑容，相反都做了怪脸。Insteadofsmiling，eachofthemmadeaface她对为我们公司工作很感兴趣。Shewasveryinterestedinworkingforourcompany下列短语中的to都是介词，所以后面跟名词或-ing形式：devoteto，objectto，payattentionto，getdownto，leadto,lookforwardto，stickto，beusedto等,1._suchheavypollutionalready,itmaynowbetoolatetocleanuptheriver.(2004全国)A.HavingsufferedB.SufferingC.ThatD.Suffered,精析：根据句意“itmaynowbetoolateto”和“already”可知“河流已经被严重污染”，应用完成时。答案A。,高考链接,2._thegeneralstateofhishealth,itmaytakehimawhiletorecoverfromtheoperation.(全国2002)A.GivenB.TogiveC.GivingD.Havinggiven,解析：本题考查过去分词作状语的用法。分析题干，前一部分相当于一个条件状语从句，即Ifheisgiven，因为主句是it，从句应含被动意义，这恰是过去分词作状语的基本含义即含被动意义。答案A。,3.-Thepicture_onthewallispaintedbymyniece.(2001上海)havinghungB.hangingC.hangsD.beinghung,解析：本题考查过去分词作定语的用法。分析题目可知，谓语是ispainted，那么选项部分应是充当定语的。A项是现在分词的完成式，其一般不作定语，只作时间或原因状语；C项动词“第三人称单数”显然也不能作定语，只作谓语；分析thepicture与动作hang之间的关系，其不含被动意义，D项排除；B项是现在分词的一般式，相当于定语从句whichishanging。答案B。,Assignment,1.SummarizetherulesofvingformastheSubjectandObjectinyourownway.2.Finishtheexercisesof“Discoveringusefulstructures”onPage12-13.,Takeabreak!,Takeabreak,Unit2UsinglanguageReading,Firstreading(3ms)Readthepassage,thenfindoutthemainideaofeachparagraph.,Para1:Para2:Para3:,Whatisorganicfarming?,Farmersprefernaturalwastefromanimals.,Farmerschangecropseverytwoorthreeyears.,Secondreading(5ms)Readthetextagainandanswerthefollowingquestions:1.Whatisorganicfarming?2.Whatproblemsarecausedbyusingchemicalfertilizers?3.Whydoorganicfarmersgrowpeasorsoybeansaftercornorwheat?,1.Whatisorganicfarming?,Organicfarmingmeansgrowingcropswithoutchemicalfertilizers.,2.Whatproblemsarecausedbyusingchemicalfertilizers?,Therearethreeproblems.First,chemicalfertilizersaffectthesoilandthewatersupplybadly.Second,theyallowfarmerstogrowthesamecropyearafteryearandexhaustthesoil.Third,theykillbothhelpfulandharmfulpests.,Farmersgrowpeasorsoybeansaftercornorwheatsothatpeasandbeanscanputmineralsbackintothesoil,makingitrichandhealthyandreadytogrowmorewheatorcorn.,3.Whydoorganicfarmersgrowpeasorsoybeansaftercornorwheat?,Thirdreading(8ms)Readthetextagain,andfillinthefollowingforms.,2.Thesoilisnotexhausted.,2.Peasandsoybeansrenewthemineralsinthesoilbecomesrichandhealthy.,3.Theyusethesoiltobestadvantage.,3.Theyplantcropsthatneedsurfacesoilandnextcropsthatgrowatadeeperlevel.Sothewindandwaterdoesntcarryawaythesoil.Alltherichnessofthesoilisused.,Advantagesoforganicfarming,Reasons,1.Thismakesthesoilricherinmineralsandsomorefertile.,1.Farmersusenaturalwastefromanimals.,1.Leavingchemicalsinthegroundforalongtimeisnotgoodforthesoilorthewatersupply.,2.Farmeroftengrowthesamecropyearafter.Asaresult,thesoilgetsexhausted.,3.Chemicalfertilizerskillbothhelpfulandharmfulbacteriaandpests.,Retelling(8ms)Retellthetextaccordingtothechart:OrganicfarmingI.Cropsgrowingwithnaturalfertilizers.II.Farmersprefernaturalwastefromanimals.,Chemicalfertilizer,1.makericherandmorefertile2.reduceandhelpstrong3.thefertilizerskillandhealthy4.keepfreefromchemicals,1.leavingisnotgood2.growyearafteryear,III.Farmerschangecropseverytwoorthreeyears.tomakesurewhatisleft,Takeabreak!,Takeabreak,1.WhatmadeJiaSixiebecomeinterestedinimprovingChinesefarming?Hesawhowsomefarmsproducedgoodcropsandhealthyanimalsandothersdidnot.,ReadingtaskonPage51(15ms)ReadthepassageonPage51,thenfinishtheexercisesonPage52.,2.Howdidhethinkhecouldhelpfarmers?Hethoughtthatwhenhefoundthebestagriculturalmethodshewouldwritethemdawnsoallfarmers.,hangseed-headsuptodryallwinter,knockseedsoutwhentheyaresown,chooseoneswiththebestcolour,3.Whatadvicedidhegivefarmers?Makenotesinthechart.,letanimalseatthembeforeplanting,turnthesoiloverandcoversotheweedsdie.,deepploughing,lessdeepploughing,changecropsgrowninthesamefieldeveryyear.,LanguagepointsforreadingII,Assignment,Finishtheexercisesonworkbook.Dosomereadingcomprehension.,Takeabreak!,Takeabreak,Listeningandspeaking,Askthestudentstoanswerthefollowingquestion:Ifyouwanttoplantsomecrops,whatkindoffertilizerwillyouuse?Why?,Warmingup(2ms),ListeningI(18ms)ListeningonPage14.,1.Listentothepassagefortwice,thenfinishthechartinEx.1onPage14.,Answerkeys:,Carrots,cucumbers,pumpkins,Carrots,cucumbers,pumpkins,chemical,natural,water,water,emptyinside,Solidandhealthyinside,2.ListentothetapeforthethirdtimeandtrytofindtheanswersforEx.2andEx.3onPage15,thenchecktheanswers.,SuggestedanswertoEx.2:TheresultsfromthetwofarmsaresodifferentbecausethehealthysoilfromMrSmithsfarmhelpedhisplantsfightthediseaseandgrowhealthily.SuggestedanswertoEx.3:SummaryDisthecorrectanswer.,ListeningII(6ms)ListeningTaskonPage50.,1.ListentothetapefortwiceandfinishtheexerciseonPage50-51,thenchecktheanswers.,Suggestedanswer:AGreeceBRomeCMiddleEastandAfricaDNorthAmerica,Speaking-I(8ms)1.Imagineyouwanttostartyourownfarm.Discusshowyouwouldstartitwithyourpartners.Thinkaboutthefollowingpoints(ingroups):,A)kindoffarm(givereasonsforyourchoice)B)whereyouwouldlikeyourfarmtobeC)whatcropsyouwouldgrowD)whatanimalsyouwouldhaveonthefarmE)howyouwouldgeteverythingyouneedF)sellingyourproduceetc.2.Asksomegroupstoshowtheirgroupwork.,Doyoubelievethatsoilisprecious?Why/whynot?Whatisusedtofeedthesoilinyourarea?Doyouthinkthatisagood/badidea?Giveyourreasons.,Speaking-II(5ms)Discussion,Farmersproverbs&sayings,Thewisdomoffarmersabouttheweather&farmingiscollectedinmanypopularproverbs&passedonfromgenerationtogeneration.Thefollowingproverbstellyousth.AbouttheweatherdinEngland.AretheytrueforChina?,Postreading,1Noweatherisill,ifthewindbestill.2Yellowskyatsunset,windinthemorrow.3Rainbeforeseven,clearbyeleven.4AprilshowersbringMayflowers.5Deedsarefruits,w