2025版高考英语大一轮复习第1部分Unit2Workingtheland教案含解析新人教版必修4

PAGEPAGE1Unit2Workingtheland[话题单词]1．providev． 供应2．lackv．&n. 缺少3．wastev． 奢侈4．recommendv． 举荐5．declinev． 削减6．hitv． 产生不良影响7．protectionn． 爱护8．energy－savingadj. 节约能源的9．annualadj. 每年的10．severeadj. 严峻的11．shortagen． 短缺12．crisisn． 危机13．ecologyn． 生态学14．outputn． 产量15．worsenvt. 使更糟[话题短语]1．dueto由于2．callon号召3．dealwith解决4．focuson集中于5．getridof去除，消退6．befacedwith面对7．beconcernedabout关切8．leadapoorlife过着贫困的生活9．withthedevelopmentofeconomy随着经济的发展10．haveaneffect/influenceon...对……产生影响11．improvetheenvironment改善环境12．watershortage用水短缺13．urbanandruralareas城镇与农村14．awell－offsociety小康社会15．onalargerscale大量地[话题佳句]1．Nowadaysmanycountriesarefacedwithfoodcrisis.现在有一些国家正面临食品危机。2．Insomeareas，peoplearefightingforgettingridofstarvation.在一些地区，人们正为消退饥饿而斗争。3．Theclimatewhichhasbeenchangedseriouslyhasagreateffectontheoutputofgrain.改变猛烈的气候对粮食的产量影响很大。4．Urbanizationwhichhasmadelotsoffertilefarmlandwastedisanotherreason.使大量肥沃土地被奢侈的城市化现象是另外一个缘由。5．Therapidgrowthofpopulationandlimitedfarmlandarethemainreasonsforfoodcrisis.人口的快速增长和有限的耕地是食品危机的主要缘由。6．Wemustbringinadvancedtechnologyandmodernizeourfarmingmethodtoimproveourgrainoutput.我们必需引进先进的技术同时使种植方法现代化，这样才能提高粮食产量。[佳作背诵]高三年级举办了一次探讨会，请你将活动状况写成一篇英文报道。活动时间上周五活动地点学校报告厅探讨主题将来会是怎样的？参加对象高三年级学生探讨内容乐观派将来随着科技的发展，交通更便利；人类会过上更高质量的生活，寿命更长。悲观派将来自然资源更少，耕地更少；环境污染更严峻；交通事故更多。学生感受当务之急是实行措施爱护自然资源，削减环境污染。LastFriday，adiscussiononthetheme“Whatwillthefuturebelike？”washeldamongstudentsinSeniorThreeinthelecturehallofourschool.Somestudentsarequiteoptimistic，believingthatinthefuture，withthedevelopmentofscienceandtechnology，transportationwillbemoreconvenientandhumanbeings，whoenjoyhigherqualityoflife，willlivemuchlonger.However，otherstudents，whoarealittlepessimistic，holdthatinthefutureasnaturalresourcesfurtherdecrease，farmlandwillbecomeless.What'sworse，pollutionwillbemoreseriousandmoretrafficaccidentswillhappen.Afterthediscussion，werealizeweshouldtakeimmediatemeasurestoprotectnaturalresourcesandreduceenvironmentalpollution.识记·思索·运用1．核心单词①ridvt.摆脱；除去②expandvt.&vi.使变大；伸展③reducevt.削减；减缩④strugglevi.&n.斗争；拼搏⑤focusn．焦点；中心点vt.集中；聚焦⑥commentn．评论；争论vi.&vt.表达看法；作出评论⑦exportvt.&vi.输出；出口→importvt.&vi.输入；进口⑧equipvt.&vi.配备；装备equipmentn．设备⑨confusevt.使迷惑；使犯难→confusedadj.迷惑的→confusingadj.令人困惑的⑩regretvt.缺憾；惋惜n．缺憾；懊悔regretfuladj.懊悔的；缺憾的2．阅读单词①thereforeadv.因此；所以；因而②decaden.十年；十年期③outputn.产量；输出④skimvt.阅读；略读⑤underlinevt.画底线标出；强调⑥battlen.战役；战斗；斗争；较量vt.&vi.搏斗；奋斗⑦pestn．害虫⑧superadj.顶好的，超级的⑨grainn.谷物，谷类⑩nationalityn．国籍⑪statisticsn.统计数字，统计资料，统计学⑫summaryn．摘要，概要⑬nutritionn．养分，滋养⑭mineraln．矿物质，矿物⑮hungern.饥饿；欲望vt.&vi.(使)饥饿hungryadj.饥饿的⑯disturbingadj.引起苦恼的；令人担心的；disturbvt.打搅⑰circulatevt.&vi.循环；流传circulationn.循环；流传⑱discoveryn．发觉；发觉discovervt.发觉⑲occupationn.工作；职业；占据occupyvt.占据；占据⑳chemicaladj.化学的；关于化学的n.化学药品→chemistryn.化学；chemistn.化学家eq\o(○,\s\up1(21))productionn．生产；制造producevt.生产；制造productn．产品，产物productiveadj.高产的，高效的producervt.生产者用上面所给单词的适当形式填空1．Manypeoplearegoinghungry(hunger)becauseofthefailureoftheharvest.2．Theysaidtheearthquakecouldleadtoareduction(reduce)insteelexportsfromJapan.3．Hisrecentdiscoveries(discover)haveaddedtohisreputationinthefieldofscience.4．Thepeoplewhowanttoimprovetheirlivesareleftconfused(confuse)byalloftheconflictinginformation.5．Thehighcostofequipment(equip)prohibitsmanypeoplefromtakingupthissport.6．Theyarediscoveringhowtodesignspacesthatpromotecreativity，keeppeoplefocused(focus)，andleadtorelaxation.7．Dina，havingstruggled(struggle)formonthstofindajobasawaitress，finallytookapositionatalocaladvertisingagency.8．It'sdisturbing(disturb)thatIcan'tgetalongwellwithmynewneighbor.9．Haveyoueverregrettedhavingdone/doing(do)somethingyoushouldn'thavedone?10．Thepressureatworkisontheincreaseinalloccupations(occupy)．1．“因此”家族①thereforeadv.因此；所以；因而②soconj.因此，所以③thusadv.因此，于是④consequentlyadv.所以，因此⑤asaresult结果，因此2．后缀-tion构成的抽象名词①addition增加，增加物②application恳求，应用，运用③appreciation观赏，鉴赏④celebration庆祝，典礼⑤combination结合⑥concentration集中，用心⑦conduction传导⑧congratulation庆贺⑨consideration考虑，思索⑩construction建立，建筑3．动词“扩展；扩大”荟萃①extend延长；扩大②enlarge扩大；放大③spread扩展；扩散；传播④expand扩展；扩张；膨胀⑤broaden使……变宽，扩展⑥widen加宽，使张开，使扩大4．后缀-dom构成的名词一览①freedom自由②wisdom才智③kingdom王国④filmdom电影界，电影业5．常见的连接性副词汇总(1)therefore因此；所以；因而(2)thus因此；因而(3)furthermore此外；而且(4)consequently因此；所以(5)moreover而且；此外(6)nevertheless不过；仍旧识记·思索·运用1．动词＋介词/副词①searchfor找寻；搜寻②turnto转向；求助于③focuson集中(留意力、精力等)于……④buildup渐渐增加；建立；开发⑤leadto导致；造成(后果)⑥rid...of使……摆脱或除去2．其他形式①wouldrather宁愿；宁可②thanksto幸亏；由于，因为③besatisfiedwith对……感到满足④withthehopeof怀有……的希望⑤keep...freefrom/of使……免受(影响、损害等)；使……不含(有害物质)用左栏所给短语的适当形式填空1．NowadayseveryoneisresponsibleforbuildingupaharmonioussocietyinChina.2．Wehaveeveryreasontobelievethatprogressinnewtechnologywillleadtoamorewonderfullife.3．Eatingwellandmoderateexercisewillkeepyoufreeof/fromcold.4．Focusonwhatmakesyouhappyaboutyourjob，notmiserable.5．Theteacherwassatisfiedwithwhatthestudentshaddone.6．She'stryingtoridherselfofadependenceondrugs.1．“动词＋up”短语小结①comeup上来，长出，出现②keepup保持③hurryup赶快④stayup挺住，熬夜⑤makeup构成，组成，编造，弥补⑥speedup加快速度2．“动词＋to”短语荟萃①leadto导致，通向②attendto处理，用心于，照料③addto增加④agreeto同意⑤cometo醒悟⑥referto谈到，涉及，参阅在解读中学懂，在仿写中学通背原句学句型练仿写1.Ifso,whatdidyoudotogrowtheseplants?假如是这样的话，你怎样来种植这些植物？ifso意为“假如是这样的话”，是if引导的条件状语从句的省略形式。这个周日你有空吗？假如有，我们去野营吧。WillyoubefreethisSunday?Ifso，let'sgocamping.2.In1973，hebecamethefirstagriculturalpioneerintheworldtogrowricethathasahighoutput.1973年，他成为世界上第一位种植高产水稻的农业先驱。thefirst/last/best...＋n.＋todosth.“第一个/最终一个/最好的一个……做某事的人/物”。她总是第一个到办公室最终一个离开，我猜这就是她那么快得到晋升的缘由。Sheisalwaysthefirstpersontogototheofficeandthelasttoleave，whichIguessiswhysheispromotedsoquickly.3.Thisspecialstrainofricemakesitpossibletoproduce20%moreofthecropinthesamefields.这种特别的稻种使得同样的田地多收获20%的产量。“makeit＋adj.＋动词不定式”结构。他的幻想是奥运会将使得各个国家和人民和平共处。HisdreamwasthattheOlympicGameswouldmakeitpossibleforcountriesandpeopletolivepeacefullysidebyside.4.Hewouldmuchratherkeeptimeforhishobbies.他宁愿把时间花在自己的爱好上。wouldratherdosth.“宁愿做……”。现在越来越多的人宁愿不住在大城市里。Nowadaysmoreandmorepeoplewouldrathernotliveinbigcities.3500词汇语境篇——先练后背，事半功倍ANewFarmingWayTuanwasafarmerinVietnam.Fordecades，he1.hadbeenstruggling(struggle)toridhisfamilyofhunger.However,2.italwaysconfusedhimhowtoexpandtheoutputofhiscrops.This3.disturbing(disturb)problemledtohisregrettingbeingafarmer.Hewouldratherhavechosen4.anotherjob.Oneday，5.whenskimmingthroughanewspaper，TuanreadacommentonYuanLongping.HeunderlinedYuan'snationalityand6.occupation(occupy)，andthenfocusedonhisdiscoveryandthestatisticsofhisresearch.HefoundtheknowledgeYuancirculatedvery7.practical(practically)．Therefore，hemadeasummaryandbegantobuildup8.anewfarmingmethod.Heplantedsupergrainofrichnutritionandequippedhimselftokeephiscropsrootsfree9.frombacteriaandpests.Healsoenrichedmineralsinthesoilwhilereducingchemicalfertilizers.Thoughitcosthimmoretimeandfreedom，hewasfullofhope.Thenextyear，Tuanwassunburntbutsatisfiedwithhisproductionvery10.much(more)．ThankstoYuanLongpin，henotonlywonthebattleagainsthunger，buthecouldalsoexporthiscropsabroad.strugglevi.&n.斗争；拼搏；努力(教材原句)Indeed，hissunburntfaceandarmsandhisslim，strongbodyarejustlikethoseofmillionsofChinesefarmers，forwhomhehasstruggledforthepastfivedecades.的确，他晒黑的面孔和手臂，清瘦而牢固的身躯，就跟其他千百万中国农夫一模一样，他过去50年来的努力工作就是为了帮助他们。(1)strugglefor为……而奋斗struggleagainst与……斗争；为反对……而斗争strugglewith与……斗争；与……并肩作战struggletoone'sfeet挣扎着站起来struggletodosth.努力做某事(2)withastruggle费劲地Itisastruggleforsb.todosth.对某人来说做某事是一件艰难的事。(1)Shenevergaveupandstruggledtolead(lead)anactivelife.她从来没有放弃，努力过着一种主动的生活。(2)语境活用Farmersalwayshavetostruggleforaliving.Theyoftenstruggleagainst/withthebadweatherforabetterharvest.Someofthemevenhavetoleavetheirhometownandgotoworkincities，struggling(struggle)toincreasetheirincome.农夫始终都得为了生存而努力。他们常常与恶劣的天气斗争来争取好一点的收成。他们中的一些人甚至不得不离开家乡到城市打工，努力地增加他们的收入。(3)单句语法填空eq\x(走进高考)(2024·全国卷Ⅱ)We’veallbeenthere：inalift，inlineatthebankoronanairplane，surroundedbypeoplewhoare，likeus，deeplyfocusedontheirsmartphonesor，worse，struggling(struggle)withtheuncomfortablesilence.equipv．配备；装备；使有所打算；使有实力(教材原句)Hethereforegivesmillionsofyuantoequipothersfortheirresearchinagriculture.因此，他资助几百万元供其他人进行农业探讨。拓展词：equipmentn．[U]设备，器材；配备，装备(1)equip...with...用……装备……beequippedwith装备着……bewell/poorlyequipped设备精良的/较差的equipsb.for(doing)sth.使某人为(做)某事而打算；使某人具备(做)某事的条件(2)apieceofequipment一件设备(1)Youreducationwillequipyouforyourfuturelife.你所受到的教化会使你具备将来生活的实力。(2)语境活用→Equipped(equip)withmuchknowledgeabouteducation，LiMingthoughtthetrainingcoursehadequipped(equip)himforajob.Hewassenttoamiddleschool，whoseclassroomsandreading-roomwereequipped(equip)withcomputersandothernecessaryequipment(equip).Hewasgladtoseethewellequipped(equip)laboratory；hefelthelikedtheschoolandwoulddoquitewellthere.(3)写作实力提升eq\x(句式升级)Theyareequippedwithnewscientificfarmingmethods，sotheyhavebeenabletouselessfarmlandthaninthepast.(改为简洁句)→Equippedwithnewscientificfarmingmethods，theyhavebeenabletouselessfarmlandthaninthepast.confusevt.使迷惑；使犯难；使混乱；混淆(教材原句)Itisimportanttoexplainthisagainorwewillconfusethestudents.把这个再说明一遍很重要，否则我们就会使学生感到迷惑。拓展词：confusedadj.困惑的，苦恼的(表示人的内心感受)confusingadj.令人费解的；使人困惑的(表示事物的状态)confusionn．混乱；杂乱；困惑sth.confusesb.某事使某人困惑confuse...with/and...混淆；把……混同；辨别不清become/getconfused困惑；不知所措beconfusedby被……弄混、糊涂beconfusedabout对……糊涂、不解inconfusion处于混乱状态(＝inamess)；困惑地(1)Iwasgettingconfused(confuse)bysuchaconfusing(confuse)problem.我被这么困惑的问题搞得不知所措。(2)语法填空①Youmustbeconfusingmewithsomeoneelse.②Hisanswerstomyquestionshaveonlyaddedtomyconfusion(confuse)．③Sincetheauthordidnotsticktothetopic，Ifoundhisarticleveryconfusing(confuse)andhardtofollow.④Allyourchangesofplanhavemademetotallyconfused(confuse)．regretvt.惋惜；懊悔；缺憾n．缺憾；愧疚；懊悔(教材原句)Hisfathersaysthathehasneverregrettedsendinghissontostudyabroad.他的父亲说他从不懊悔送他儿子到国外学习。拓展词：regrettableadj.令人缺憾的；惋惜的regretfuladj.缺憾的；懊悔的(1)regretdoing/havingdonesth.懊悔做了某事regrettodosth.缺憾将要做某事regrettosay/tell/inform...that...缺憾地说(告知)……regret＋that从句缺憾……(2)withgreat/deepregret很缺憾toone'sregret让某人感到缺憾的是havenoregrets没有缺憾(1)Youmustn'tallowagoldenopportunitytoslipthroughyourfingersoryouwillregretitlater.千万别错失良机，否则日后追悔莫及。(2)Ihavealwaysregrettednothavingstudied(study)hardatschool.我始终懊悔在校期间没有努力学习。(3)语境活用Iregretted(regret)totellhimthathehadbeendismissed.Tomysurprise，hesaidtome，“Ihavenoregrets(regret)．Ionlyregrethavingtaken(take)thewrongjob.”我缺憾地告知他他被解雇了。使我惊异的是，他对我说：“我没有什么缺憾。我唯一懊悔的是选错了工作。”besatisfiedwith对……表示满足或满足(教材原句)YuanLongpingisquitesatisfiedwithhislife.袁隆平很满足自己的生活。(1)satisfyvt.使满足satisfyone'sneeds＝satisfytheneedsofsb.满足某人的需求(2)satisfyingadj.令人满足的satisfactoryadj.令人满足的(3)satisfiedadj.满足的eq\b\lc\\rc\}(\a\vs4\al\co1(besatisfiedwith...,behappywith...,becontentwith...))对……满足besatisfiedtodo...对做……感到满足(4)satisfactionn．满足(much)toone'ssatisfaction＝tothesatisfactionofsb.使某人满足的是(1)Fromhissatisfied(satisfy)lookIknowheissatisfied(satisfy)toworkhere.从他满足的神情可以看出，他很满足在这里工作。(2)单句语法填空①Itwasagreatsatisfaction(satisfy)tohaverevisitedournativevillage.②Asamatterofexperience，hethoughttheinterviewerwassatisfied(satisfy)withhim.③Fromthesatisfiedsmileonherface，wecanseetheperformancewassatisfying.(satisfy)④Thepolicemanputdownthephone，satisfied(satisfy)withasmileonhisface.buildup渐渐增加；增加……的体质；建立；创办；开发；积累(教材原句)Thesechemicalsinthefoodsupplybuildupinpeople'sbodiesovertime.随着时间的推移，食物中的这些化学成分会在人体中积累。(1)buildsb./oneselfup增加体质buildupone'shealth/body增进健康buildupafame建立名声buildon在……基础上发展；增(扩)建(2)stayup不睡觉；熬夜wakeup醒来takeup拿起，占用；起先从事pickup捡起；偶然学会；收听；(用车)接人useup用完；花光mixup混淆；弄乱；搅匀；拌和(1)Hehasbuilt(up)hisbusinessovertheyears.这些年来他逐步建立起了自己的生意。(2)Outdooractivitiesarereallyhelpfulinbuildingupmybodyandenrichmyschoollife.户外活动的确对我增加体质和丰富学校生活有益。(3)写出下列句中buildup的含义①Takingexercisehelpsusbuildupourbodyandkeepaclearmind.增加……的体质②I'mverygladtoseethatyourvocabularyisgraduallybuildingup.渐渐增加③It'ssaidthatshe'sbuiltupaverysuccessfulbusiness.建立；创办④Bearsbuildupfatstoresthroughoutthesummerandfalltohaveenergyenoughtolastthemthroughtheirwintersleep.积累(4)单句语法填空eq\x(走进高考)(2024·北京卷)Iwokeupsweatingandnervous，butreadytoprovesomethingtomyself.leadto导致；造成(教材原句)Manyofthesechemicalscanleadtocancerorotherillnesses.很多化学成分能导致癌症或其他疾病。(1)leadsb.todosth.使某人做某事leadsb.to/into...带(领)某人到(某处)；使某人得出(结论)leadsb.insth./doingsth.带领某人做某事leadtheway带头；先行(2)inthelead处于领先地位takethelead带头，领先(3)resultin引起，导致contributeto有助于；促成giveriseto造成；引起，导致(1)Smallmistakesleftuncorrectedwillleadto/resultin/contributeto/giverisetobigones.小错不改，会酿成大错。(2)Asisknowntousall，successliesinhardworkwhilelazinessleadstofailure.众所周知，胜利源于勤奋，而懒散导致失败。(3)Everypersonhopesthattheywillliveahappylifeinthefuture.人人都期盼将来有华蜜的生活。(4)单句语法填空。①Thiskindofdiscussionwillcertainlyleadtostillgreaterdifferencesbetweenthetwoparties.②Ithadbeenarainydayandthestepsleading(lead)tothecarparkwerewetterthanIrealized.③Thediscoveryofthenewevidenceeventuallyledtotheofficial'sbeingarrested(arrest)．(5)单句语法填空eq\x(走进高考)(2024·天津卷)Falsefirealarmsareillegalandmayleadtoimprisonment.lfso，whatdidyoudotogrowthem?假如是这样的话，你是怎样种植这些植物的？ifso意为“假如是这样的话”，是if引导的条件状语从句的省略形式，可以用来代替整个从句，省略前面出现过的主语和动词，表示确定意义；假如表示否定意义，则用ifnot。ifso假如是这样的话ifnot假如不这样的话；假如没有ifever假如有过/发生过的话ifany假如有的话ifpossible假如有可能；假如可能的话ifnecessary假如有必要(1)I'llgotoseeyounextweek，ifpossible.假如有可能的话，我会下周去看你。(2)单句语法填空①Iseverybodyfeelingcold？Ifnot，letusopenthewindows.②Thegirlseldom，ifever，turnedtoherbrotherforprotection.③—Haveyougotanyparticularplansforthecomingholiday?—Yes.Ifpossible，I'mgoingtovisitsomeoldpeople'shomesinthecity.(3)写作实力提升eq\x(同义句改写)①SomeofyoumayhavefinishedUnitOne.Ifyouhavedoneso，youcangoontoUnitTwo.→SomeofyoumayhavefinishedUnitOne.Ifso，youcangoontoUnitTwo.②Washitinwaterandpickoutthesmallparticles，ifthereareany.→Washitinwaterandpickoutthesmallparticles，ifany.In1973，hebecamethefirstagriculturalpioneerintheworldtogrowricethathasahighoutput.1973年，他成了世界上第一位种植高产水稻的农业先锋。本句中togrowrice是不定式作定语，修饰thefirstagriculturalpioneer。(1)当中心词是序数词或被序数词、形容词最高级以及thenext，theonly，thelast等修饰时，常用不定式做后置定语。(2)不定式作后置定语常用来修饰抽象名词，如：ability，chance，idea，fact，excuse，promise，answer，reply，attempt，belief，way，reason，moment，time等。[要点释疑](1)若不定式是一个不及物动词，或者不定式所修饰的名词或代词是不定式动作的地点、工具等时，不定式后面要有必要的介词。(2)不定式所修饰的名词假如是time，place或way时，不定式后面的介词习惯上省去。(3)不定式作后置定语时常表示将来的动作。(1)MostpeopleknowthatMarieCuriewasthefirstwomantowintheNobelPrize，andthefirstpersontowinittwice.很多人都知道居里夫人是获得诺贝尔奖的第一位女士，同时也是两次获此殊荣的第一人。(2)Heisalwaysthefirsttocome(come)totheclassroomandthelasttoleave.(leave)他总是第一个来到教室，最终一个离开。(3)单句语法填空①Heboughtacomfortableflattolivein②Ihavemuchworktodo(do)．③Qingdaoisapleasantplacetovisit(visit)．④Thepolicefiredintotheairinanattempttobreak(break)upthecrowd.⑤Theyoungsingerhasbeenburningforachancetohear(hear)thecheersofthecrowd.(4)单句语法填空eq\x(走进高考)(2024·全国卷Ⅲ)HeisthefirstChinesecitizentowin(win)thisaward.Ⅰ.单词拼法1．Expanding(扩展)yourknowledgebyreadingmorebooksisawisechoice.2．Abirdwascaughtinthenet，struggling(努力；挣扎)toescape.3．Heregretted(懊悔)thathewascarelessanddidn'tpasstheexam.4．Themethodofreducing(削减)theteachingcosthasbeendiscussedatthemeeting.5．Itisverymodernandabout80percentofitsproductsexport(出口)toforeigncountries.6．Withallhisattentionfocused(集中精力)onhisexperiment，hehasnotimetospendwithhisfamily.7．Suchcomments(评论)seemtosuggestKahlohadabiginfluenceontheartworldofhertime.8．Greatchangeshavetakenplaceinthefirsttwodecades(十年)ofthe21stcenturyinChina.Ⅱ.单句改错1．Hehasbeenstrugglingfortheillnessformanyyears.for→against/with2．I'drathergoshoppingthantogotothepark.去掉than后的to3．Thankstoalocalworker，weridourselvesoffthetrouble.off→of4．Havingretiredfrombusiness，henowoccupieshimwiththewelfareofthedisabled.him→himself5．Thanksforthesuccessofthebusiness，wecanaffordaholidaythisyear.for→to6．Nowtheyoungmanregretswastesomuchtimewhenhewasatschool.waste→wasting7．Eachroominthishotelequippedwithanairconditionerforthecustomer'sconvenience.equipped前加is8．Thishasledscientiststothinkingoutothersolutionstotheproblem.thinking→thinkⅢ.教材与语法填空Famousscientistasheis，YuanLongpingconsidershimself1.afarmer.Hegrows2.whatiscalledsuperhybridrice.Asayoungman，YuanLongpingsawthegreatneedforincreasingthericeoutput.Atthattime，hungerwasadisturbingprobleminChina.Hewantedtoincreasericeharvestswithout3.expanding(expand)theareaofthefields.In1973，aspecialstrainofricemade4.itpossibletoproduce20%moreofthecropinthesamefields.Thanks5.tohisresearch，theUNhasmoretoolsinthebattletoridtheworldof6.hunger(hungry)．Usinghishybridrice，farmersareproducingharveststwiceas7.large(large)asbefore.Heisnowcirculatinghisriceknowledgeinlessdevelopedcountries8.toincrease(increase)theirriceharvestsandhewantstoexporthisricesothatitcanbegrownaroundtheglobe.Thoughhe9.hasstruggled(struggle)forthepastfivedecades，YuanLongpingisquitesatisfied10.withhislife.Inhissparetime，heenjoyslisteningtoviolinmusic，playingmah-jong，swimmingandreading.Ⅳ.教材与短文改错Overthepasthalfcentury，usingchemicalfertilizersbecomeverycommo