Unit5WorkingthelandReadingandThinking課件高二英語人教版選擇性2

WorkingtheLandUNIT5APioneerforAllPeopleReadingandThinkingWhatisthisinthepictures?RiceLead-inLookandspeakActivity1YuanLongpingFatherofhybridriceWhomcanwealwaysthinkofwhiletalkingaboutrice?Lead-inLookandspeakActivity1fatherofhybridericeascientistafarmerapioneerWhatdoyouknowmoreaboutYuanLongping?Discussabouthimwithyourpartners.Pre-readingDiscussionActivity2Readthetextandgetthemainideaofeachparagraph.Para.

1Yuanconsidershimselfafarmer.

Para.

3Yuanconductedresearchanddevelopedhybridrice.Para.

4Yuan'sinnovationhashelpedtofeedmorepeople.Para.

5Yuancareslittleforfameorwealth.Para.

6Yuanisoldbutstillworkinghardtofulfilhisdreams.Para.

2Yuandecidedtostudyagriculture.WhilereadingReadformainideasActivity3WhydoesYuanLongpingconsiderhimselfafarmer?YuanLongping,knownasthe"fatherofhybridrice",wasoneofChina'smostfamousscientists.Yet,heconsideredhimselfafarmerbecausehecontinuallyworkedthelandinhisresearch.Indeed,hisslimbutstrongbodywasjustlikethatofmillionsofChinesefarmers,towhomhehaddevotedhislife.WhilereadingReadforDetailsActivity4WhydidYuandecidetostudyagriculture?Becausehewasconcernedthatfarmershadpoorharvestandseriousofshortagefoodtoeat.YuanLongpingwasbornin1930inBeijing.Hisparentswantedhimtopursueacareerinscienceormedicine.However,whatconcernedhimmostwasthatfarmersoftenhadpoorharvestsandsometimesevenhadaseriousshortageoffoodtoeat.Totacklethiscrisis,hechosetostudyagricultureandreceivedaneducationatSouthwestAgriculturalCollegeinChongqing.WhilereadingReadforDetailsActivity4Whatisthemainadvantageofhybridrice?Aftergraduatingin1953,heworkedasaresearcher.YuanLongpingrealisedthatlargerfieldswerenotthesolution.Instead,farmersneededtoboostyieldsinthefieldstheyhad.Howthiscouldbedonewasachallengingquestionatthetime.Yuanwasconvincedthattheanswercouldbefoundinthecreationofhybridrice.Ahybridisacrossbetweentwoormorevarietiesofaspecies.One

characteristicofhybridsisthattheyusuallyattainahigheryieldthanconventionalcrops.However,whetheritwaspossibletodevelopahybridofself-pollinatingplantssuchasricewasamatterofgreatdebate.Thecommonassumptionthenwasthatitcouldnotbedone.Throughintenseeffort,Yuanovercameenormoustechnicaldifficultiestodevelopthefirsthybridricethatcouldbeusedforfarmingin1974.Thishybridenabledfarmerstoexpandtheiroutputgreatly.Thishybridriceenabledfarmerstoexpandtheiroutputgreatly.WhilereadingReadforDetailsActivity4HowhasYuan’sworkhelpedChinaandothercountries?Today,itisestimatedthatabout60percentofdomesticriceconsumptioninChinaiscomprisedofcropsgeneratedfromYuan'shybridstrains,andhisstrainshaveallowedChina'sfarmerstoproducearound200milliontonsofriceperyear.Yuan'sinnovationhashelpedfeednotjustChina,butmanyothercountriesthatdependonriceaswell,suchasIndiaandVietnam.Becauseofhisinvaluablecontributions,YuanLongpingreceivednumerousawardsbothinChinaandabroad.WhilereadingReadforDetailsActivity4hasgeneratedabout60percentofdomesticriceconsumptionhasproducedaround200milliontonsofriceperyearhashelpedfeedmanyothercountriesYuan’shybridericeWhilereadingReadforDetailsActivity4WhatwasYuan’svisionandlatervision?Doeseachofthembecomeareality?WhatimpressedpeoplemostaboutYuanLongpingwashisongoingabilitytofulfilhisdreams.Longago,heenvisionedriceplantsastallassorghum,witheachearofriceasbigasabroom,andeachgrainofriceashugeasapeanut.Hesucceededinproducingakindofricethatcouldfeedmorepeopleathomeandabroad.Hislatervisionfor"seawaterrice"alsobecameareality,andpotentiallyopenedupnearlyonemillionsquarekilometresofsaltylandinChinaforriceproduction.Eveninhislateryears,Yuanlongpingwasstillyoungatheartandfullofvision,andeveryonewasalwaysexcitedtoseewhathewoulddreamupnext.WhilereadingReadforDetailsActivity4Yuan’s

vision:riceplantsareastallassorghumandeachgrainofriceisashugeasapeanut.Yuan’slatervision:

seawaterricecanbeplantedinsaltyland.hasbecomearealityhasbecomearealityWhilereadingReadforDetailsActivity4UsewordformationtoguessthemeaningOften,newwordsarenotreally“new”一theyarejustdifferentformsofwordsthatyoumayalreadyknow.Forinstance,awordendingwith-ateisoftenaverb,whileawordendingin-tionisoftenanoun.Thus,wehavecommunicate(verb)andcommunication(noun).Englishhasmanywordpatternslikethis.Post-readingReadforlanguageuseActivity5Completethesentenceswiththecorrectformsofthewordsinthebox.createestimationeducationgenerationgraduation1.Thisschoolhas_________thousandsofbrightyoungstudentsovertheyears.2.Moststudentslookforjobsafteruniversity_____________.3.Becauseofthe__________ofnewstrainsofhybridcrops,peopleinmanypartsofthe

worldnowhavemorefoodtoeat.4.Lastyear,thisnewelectricpowerplant__________enoughenergytopowerthewholecity. 5.Itwasdifficulttocalculateexactlyhowmanytreeshadbeencutdown.However,ageneral___________waspossible.educatedcreationgraduationgeneratedestimationPost-readingReadforlanguageuseActivity5Post-readingGrou