高中英语人教新课标必修4教案：Unit 2 Working the land Period 1 Warming up and Reading

Periods1　WarmingupandReadingTheGeneralIdeaofThisPeriodThisperiodincludesWarmingup,Pre-reading,ReadingandComprehendingofUnit2.Itintroducessomethingaboutagriculture,especiallyaboutDrYuanandhissuperhybridrice.Itcanhelpthestudents,especiallythestudentsincities,knowsomethingaboutagriculture.Infactthisworldfacesaseriousproblem—starvation.SoafterreadingthepassageaboutDrYuanthestudentswillknowtheimportanceofhisachievementtoman.OfcoursetheywilllearnfromDrYuansomenoblecharacters,andlearnhowtheyshouldtrytheirbesttomakecontributionstothesociety.TeachingImportantPointsHelpthestudentstounderstandthepassagebetter.Learnandmastertheimportantwordsandphrasesinthisperiod.HowtohelpthestudentsmakeuptheirmindstomakecontributionstothesocietyinthefuturelikeDrYuan.TeachingDifficultPointsHowtohelpthestudentsimprovetheirreadingabilityandunderstandthepassagebetter.Howtomastertheimportantlanguagepointsinthispassage.TeachingMethodsFastreadingtogetthegeneralideaofthetext.Detailreadingtounderstandthepassagebetter.Explanationtohelpthestudentsmastersomelanguagepoints.Discussiontohelpthestudentsunderstandbetterwhatthey’velearnedandtousetheknowledgethey’velearnedinthisperiod.TeachingAidsAtaperecorderAmultimediaThreeDimensionalTeachingAimsKnowledgeandSkillsTrainthestudents’readingability.Learnthefollowingusefulwords,expressionsanddrills:Words:sunburn,struggle,super,expand,circulate,equip,exportExpressions:rid...of,besatisfiedwith,leada...life,searchfor,wouldrather,thanksto,withthehopeof,ratherthanDrills:1)Thisspecialstrainofricemakesitpossibletoproduceone-thirdmoreofthecropinthesamefields.2)Hecareslittleaboutspendingthemoneyonhimselforleadingacomfortablelife.3)Healsodoesn’tcareaboutbeingfamous.4)Hefeelsitgiveshimlessfreedomtodohisresearch.5)Hisotherhobbiesincludeplayingmah-jong,swimmingandreading.6)Wishingforthings,however,costsnothing.Enablethestudentstolearnmoreaboutagriculture,countrysideandfarming.Theycanexchangetheirexperiencewitheachotherbytalkingandrealizetherolethatagricultureplaysinhumanlifefromthispart.ProcessandStrategiesFastreadingtomakethestudentsgetthemainideaofthepassage.Explanationtomakethestudentsmastersomelanguagepoints.FeelingsandValueItcanhelpthestudents,especiallythestudentsincities,knowsomethingaboutagriculture.,TeachingProceduresStep1WarmingupT:Goodmorning/afternooneveryone.Ss:Goodmorning/afternoon,teacher.T:Inunit1thepreviowswelearntsomegreatwomen.Todaywe’lllearnsomethingaboutafamousman.Atfirstlet’slookatthefollowingpicturesandtellmewhatthepeoplearedoing?Ss:Theyarefarming.T:Areyoufromafarmer’sfamily?Whatdoyouknowaboutfarming?(Showthefollowingchartwordbywordonthescreen,andaskthemtotellmore.)soilcropsploughingweatherandclimateirrigating...T:Maybeeveryoneknowssomethingaboutthemodernagriculture,butdoyouknowanythingabouttheagricultureinthepast?Thenshowthestudentsthefollowingpictures:AgricultureinthepastThemodernagricultureStep2Pre-readingThepurposeofthisstepistoletthestudentsknowtheimportanceofrice.Byansweringthetwoquestions,thestudentscaneasilyunderstandwhywecallDrYuanLongpingapioneerforallpeople,andwhyhedevotesallhislifetothericeresearch.T:WhatisthemainfoodinallEastAsianandSoutheastAsiancountries?Ss:Rice.Itissaidthatthereare2.4billionpeopletoeatriceeverydaythroughouttheworld.T:Whatdoyouthinkwouldhappeniftherewassuddenlynoricetoeat?Ss:Ifthathappened,peopletherewouldsufferfromstarvation.Peoplewouldbepanic(惊慌)andthewholecountry,wouldgetintotrouble.T:ButtodayitwillnothappenbecauseDrYuanLongpinghelpsus.Sotodaywe’lllearnapassageaboutDrYuan,theFatherofhybridrice.Let’scometothetext.Step3FastreadingThereadingmaterialisaboutanagriculturalpioneernamedYuanLongpingwhoworkedhardatanewstrainofrice.Ithasprovedsosuccessfulthathistechnologyspreadintoothercountries.Thepurposeofthefastreadingistoletthestudentsfindsomeusefulinformation，andgetfamiliarwiththetext.Sointhisstep,theteachercandesignsomequestionstheforthestudents,sothattheycaneasilyfindtheanswersandfinishthereadingtask.T:Readthetextfastandfindouttheanswerstothequestionsonthescreen.ThenI’dliketoaskyoutoanswerthem.Showthequestionsonthescreenandgivethestudentsthreeminutestoreadthetextquickly.1.WhatisDrYuan’sappearance?2.What’shisachievement?3.Doyouthinkheisagreatman?Why?Threeminuteslater.T:Nowwhowouldliketoanswerthefirstquestion?S:1.Hehasasunburntfaceandarmsandaslim,strongbody.Heismorelikeafarmerthanascientist.T:Youareright,verygood!Whataboutthesecondone?S:2.Hegrowswhatiscalledsuperhybridrice,whichmakesitpossibletoproduceone-thirdmoreofthecropinthesamefields.Thankstohisresearch,theUNistryingtoridtheworldofhunger.Usinghishybridricefarmers’producingharveststwiceaslargeasbefore.T:Doyouthinkheisagreatman?Why?(Ssgivetheirownanswers.)Step4DetailedreadingT:Pleasereadthetextagain,andtrytofindtheanswersforthefollowingquestions:I’llgiveyoufourminutes.1.WhydidDrYuanwanttoincreasethericeoutputwhenhewasyoung?2.Howdoeshehelpridtheworldofhunger?3.WhatkindoflifeisDrYuanleading?4.UseafewwordstodescribeDrYuan’spersonality.Fourminuteslater.T:Whohavefoundtheanswerforthefirstquestion?Suggestedanswers:1.DrYuanwantedtoincreasethericeoutputbecausehesawmanypeoplegohungrywhenhewasyoung.2.Hehelpstheworldgetridofhungerbyproducingahybridstrainofricewhichincreasetheharvest.3.DrYuanisleadingasimplelife,doinghisresearch,listeningtohismusicandridinghismotor-bike.4.DrYuanisasimple,academicmanwhoismoreinterestedinhelpingothersthanbeingfamous.Step5ExtensivereadingT:Nowpleasereadthetextforthethirdtime,thenfillthefollowingchart:Ssreadandfillthechart:NameYuanLongpingBornGraduatedAppearanceHehas__________faceandarms.Hisbodyis__________but__________.Allthismakeshimlookasareal__________.AchievementsHesucceededin__________.,Hebecamethefirstagricultural__________intheworldtogrow__________　whoseoutputishigh.Hehelpedthegovernmenthighlyincreasethe__________ofgrain.Personality1.carelittlefor__________2.wouldliketolivealifeof__________3.hasgreat__________.Step6DiscussionDoyouwanttoendthefamine(饥荒)intheworld?Ifyouhadthechancetodoonethingtohelpendhungerintheworld,whatwouldyoudo?Inventanewkindofplanttoproducemorefood.Findasortoffertilizer(肥料)togivericeenoughnutrition.Stopthepollutiontotheenvironmentandprotectthesoilinthefield.Step7LanguagepointsTheteacherexplainstheimportantwordsandexpressionsfromthereading.Trytouseasmanyexamplesaspossibletoillustratethepoint.Afterillustration,theteachercangivethestudentssomeexercisetoconsolidatetheirunderstanding.Step8HomeworkFinishtheexercisesonWorkbook.Prepareforthenextclass.TheDesignoftheWritingontheBlackboardUnit2　WorkingthelandPeriod1　WarmingupandReadingLanguagefocus1.rid...of　makesb./sth.freefrom(sb./sth.unpleasant)e.g.Weallwishthatwewouldridtheworldoffamine.Thefarmerrecentlytriedtoridthehouseofrats.2.leada...life,livea...lifee.g.Nowweareleadingahappylife.Intheolddaysfarmersledaterriblelifeinthecountry.3.wouldrather,prefertoe.g.I’dratherwalkthantakeabus.I’dratheryouknewthatnow,thanafterwards.RecordafterTeaching　ActivitiesandResearchResearchoncropsThisactivityisintendedforgroupcooperation.Thestudentshavetoassignthemselvesthework.Thestudentsareaskedtostudythreeorfourcropsthataregrownontheland,includingwhereitgrows;thevarieties;itsidealenvironment.Thisactivityisimportantforthestudentsasitencouragesindependentlearninganddevelopsresearchskills.1.Assigneachgrouptofindouttheinformationofonekindofcrop.2.StudentscansearchsomeinformationontheInternet,theycanalsogainalotofinformationfromagoodsetof,encyclopedia.3.Encouragethemtodotheworkoutofschoolashomeworkorindependentprojectwork.4.Helpthestudentsorganizetheirinformationunderthethreeheadings:geography,varietiesandenvironment.5.Whenstudentspresenttheirwork,praisetheireffortsinclassandgivethemencouragementandsuggestionstoimprovethequalityoftheirfutureprojects.6.Teachercanalsodisplaythestudents’projectsforotherclassesandtheirparentstosee.ReferenceforTeachingBackgroundInformation1.Crops1)CucumbersCucumbersaregrownforeatingfreshorpreservingaspickles.Theymustbegrowninwarmtemperaturesandfullsunlight,andwillnotstandfrost.Cucumbersmaturequicklyandarebestsuitedtolargegardensbutcanbegrowninsmallareasifcagedortrellised.Cucumbersdobestinloose,sandyloamsoilbutcanbegrowninanywelldrainedsoil.Removerocks,largesticksandtrashbeforepreparingthesoil.Leavefinepiecesofplantmaterialsuchasdeadgrassandsmallweeds.Theywillhelpenrichthesoilwhenturnedunder.Spadethesoiltoadepthof8to12inches.Thisisaboutthedepthreachedbymostshovelsorspadingforks.Turneachshovelofsoilcompletelyoversoallplantmaterialsarecoveredwithsoil.2)TomatoesTomatoesarewarmseasonplantsrequiringatleastsixhoursperday.Temperaturesareveryimportant.Mostvarietiesoftomatoeswillnotsetfruitunlesstheaveragenighttimetemperaturestaysabove55degrees.Ifnighttimetemperaturesareexpectedtodropbelow55degrees,protecttheplantsusingapolyethylenefilm.Oneofthemostcommonproblemswithtomatoesiscalledblossomendrotwhichappearsasagrayordarkleatheryscarorrotontheblossomendofthefruit.Itisusuallycausedbysuddenorinconsistentmoisturelevelsinthesoil.Itcanalsobecausedbyalackofcalciuminthesoil.Anothercommonproblemoftomatoesisblossomdrop.Thiscanoccurifnighttimetemperaturesdropbelow55degreesandplantsarenotprotected.Germinationandtubegrowtharesoslowthattheblossomsdropoffbeforetheycanbefertilized.3)PeasPeasareafrost-hardy,cool-seasonvegetablethatcanbegrownthroughoutmostoftheUnitedStates,whereveracoolseasonofsufficientdurationexists.Forgardeningpurposes,peasmaybeclassifiedasgardenpeas(Englishpeas),snappeasandsnowpeas(sugarpeas).Gardenpeavarietieshavesmoothorwrinkledseeds.Thesmooth-seededvarietiestendtohavemorestarchthanthewrinkled-seededvarieties.Thewrinkled-seededvarietiesaregenerallysweeterandusuallypreferredforhomeuse.Thesmooth-seededtypesareusedmoreoftentoproduceripeseedsthatareusedlikedrybeansandtomakesplit-peasoup.Snappeashavebeendevelopedfromgardenpeastohavelow-fiberpodsthatcanbesnappedandeatenalongwiththeimmaturepeasinside.Snowpeasaremeanttobeharvestedasflat,tenderpodsbeforethepeasinsidedevelopatall.TheSouthernpea(cowpea)isanentirelydifferentwarm-seasonvegetablethatisplantedandgrowninthesamemannerasbeans.2.IsOrganicFoodSafe?Yes.Organicfoodisassafetoconsumeasanyotherkindoffood.Justaswithanykindofproduce,consumersshouldwashbeforeconsumingtoensuremaximumcleanliness.Ascitedabove,organicproducecontainssignificantlylowerlevelsofpesticideresiduesthanconventionalproduce.ItisacommonmisconceptionthatorganicfoodcouldbeatgreaterriskofE.colicontaminationbecauseofrawmanureapplicationalthoughconventionalfarmerscommonlyapplytonsofrawmanureaswellwithnoregulationwhatsoever.Organicstandardssetstrictguidelinesonmanureuseinorganicfarming:Eitheritmustbefirstcomposted,oritmustbeappliedatleast90daysbeforeharvest,whichallowsampletimeformicrobialbreakdownofanypathogens.,Whydoesorganiccostmore?Thecostoforganicfoodishigherthanthatofconventionalfoodbecausetheorganicpricetagmorecloselyreflectsthetruecostofgrowingthefood:substitutinglaborandintensivemanagementforchemicals,thehealthandenvironmentalcostsofwhicharebornebysociety.Thesecostsincludecleanupofpollutedwaterandremediationofpesticidecontamination.Pricesfororganicfoodsincludecostsofgrowing,harvesting,transportationandstorage.Inthecaseofprocessedfoods,processingandpackagingcostsarealsoincluded.Organicallyproducedfoodsmustmeetstricterregulationsgoverningallthesestepsthanconventionalfoods.Theintensivemanagementandlaborusedinorganicproductionarefrequently(thoughnotalways)moreexpensivethanthechemicalsroutinelyusedonconventionalfarms.Thereismountingevidencethatifalltheindirectcostsofconventionalfoodproductionwerefactoredintothepriceoffood,organicfoodswouldcostthesame,or,morelikely,becheaperthanconventionalfood.3.InternationalCoalitionProposesWorldHungerReformsRome,Italy,May28\—Aninternationalcoalitionpromotingplant-basedsolutionstoworldhungerproposedsweepingreformstodelegatestotheFoodandAgricultureOrganizationmeetingonworldfoodsecurityinRome.Thepurposeofthemeetingwastorepairaflawedprocessthatwassupposedtoreducethenumberofchronicallyhungrypeopleintheworldbyhalfbytheyear2015.Thecoalition’spositionpapermakesseveralcreativepointstocleartheimpasse:Akeyrootcauseofworldhunger,asidefromnaturaldisasters,pests,andwars,hasbeentheinsistencefirstbycolonialpowersandnowbycorporateinterestsonproductionofcashcropsforexport,inplaceofsufficientnutritious,safe,andaccessiblefoodforthelocalpopulation.Internationaltradecannotsolveworldhungerbecauseitshiftslimitedagriculturalresourcestoproductionofcashcropsforexport,andpeoplewhodon’thaveaccesstofoodandotherbasicnecessitiesoflifehavenothingtotrade.Westernmeatindustries,facingpublicawarenessofthehealthimpactsandstrictenvironmentalregulationsathome,seektoexploitthenaturalresources,cheaplabor,andpotentialmarketsoflow-incomefood-deficientnations(LIFDNs).Thedefinitionoffoodsecurityasthesustainableavailabilityofsufficientamountsofnutritious,safe,andaccessiblefoodstuffsleadsinevitablytothechoiceofplant-basedsolutionsandtheavoidanceofanimal-basedsolutions.Affluentnationsshouldactupontheirmoralobligationtoprovidetheresourcesnecessarytotransportanddistributewesternfoodsurplusestotheworld’shungrypeopleandtohelpsetupsustainableproductionofsufficientnutritious,safe,andaccessiblelocallygrownplant-basedfoods.Theyshouldreducetheirowndependenceonanimal-baseddietstoreleasefoodstuffsforthehungry.LIFDNsshouldscrutinizecarefullyalloffersofresourcestomakesurethatthesetrulymeettheirneeds,ratherthanthoseofwesterncorporateinterests.Theyshouldinsistonbuildingupsustainableproductionofsufficientnutritious,safe,andaccessiblelocallygrownplant-basedfoods.Inadditiontodistributingthepositionpapertothedelegates,coalitionactivistsalsohandedoutleafletsattheFAORomeheadquarters.AdditionalactionsareplannedinconnectionwiththeWorldFoodSummittobeheldinRomeinNovember.MembersofthecoalitionincludeFARM,aU.S.non-profitorganizationwhichhaspromotedsustainable,humanefarmingpracticessince1976，andtwoItaliangroups,SocietaVegetariana(Milan)andProgettoVivereVegan(Florence).4.Hunger:VegetarianSolutionsNow—VegfamVegfamisacharitableorganizationwiththemissiontofeedthehungrywithoutexploitinanimals.,Itwasfoundedin1963inEnglandbyChrisandJanetAldous.LaterRuthandFriedensternHowardbecameTrustees.FriedenandotherscontinueitsworktodayoutoftheofficeinDevon,England.(VEGFAM,TheSanctuary,NrLydford,Okehampton,DevonEX204AL,England)Forover30years,Vegfamhasbeenworkingwithandinfluencingmajorcharitiesaroundtheworld,byco-financingprojectsthatdonotexploitanimals.Vegfamworksthroughindigenouson-the-spotrepresentatives,andworkswithexistingcharitiestosupportimmediateandlong-termfoodandwater-aidprojects.Inworkingwithexistingcharities,Vegfameducatesthesegroupsabouttheneedforreliefeffortsthatdonotfeedthehungryattheexpenseofanimalsandtheenvironment.Short-termaidforfaminevictimsincludespurchasinggrains,legumes,fruits,nuts,andvegetables,andprovidingwatersupplies.Long-termaidincludesprovidingseedsforplanting,irrigationprojects,diggingwaterwells,providingfruitandnuttrees,providingvegetableplotsand/ortrainingpeopletogrowvegetables,andLeafConcentrateprojects.SomeofthecountriesaidedbyVegfamareIndia,Bangladesh,Vietnam,Sudan,Ethiopia,Nigeria/Biafra,Somalia,Syria,Lebanon,Zimbabwe,andmanymore.In1994helpwassenttoAngola,Rwanda,andBosnia.Donationsmadein1995were,insterling;(1=about$1.60),andtheamountsaresmallcomparedtoneed,to:MALAWI(MonkeyBay)1000tofinancerunningaFruitTreeNursery.TheprojectisdoneinconjunctionwithConcernUniversalandtheWildlifeSocietyofMalawi.INDIA(Madurai)1265fortwowellsinKarumbalaiforpoorvillagerswhowouldotherwisehavetowalkafar.1935tofeedorphansintheorphanageatChathirpatti.(TheorphansaretakeninfromvariousdisastersinIndia:flood,earthquake,plague,etc.)BothoftheseeffortsareinsupportoftheworkofPastorJesudoss.INDIA(Jaipur)500fortheleafconcentratechildfeedingprogramsrunbyFindYourFeet.INDIA(HimalayasKumaon)500foramedicinalandculinaryherbnurserywhichwillhelpsubsistencefarmersearnalivingandovercomeafoodshortage,andpreservethewild-growingherbsthatarebeingexcessivelyharvested.ELSALVADOR2500forgrowinganddryingcowpealeavestoaddtochildren’ssnackstoalleviatemalnutrition,incooperationwithalocalagency,andFindYourFeet.Sofarin1996donationshavebeenmadeto:INDIA,throughPastorJesudoss:500tohelpfeedrefugeesfromSriLanka,and1220totheorphanage.ZAMBIA:3000foramaizegrindingmill,donatedthroughtheZambianSocietyOfVegetarians.MEXICO:2000foradriedleafprojectofFINDYOURFEETwithcooperationofalocalagency.NIGERIA，andawaitingfunding,isasoyflourdistributionprojecttobeconductedbytheNigerianVegetarianSociety.5.SomethingAboutChineseAgricultureChinaisacountrywhosepopulationranksthefirstintheworld.Inordertofeedthewholepopulation,Chinesefarmersmustproduceenoughfood.Ontheotherhand,theyshouldproducemoreandbetterproductswhichcanbeexportedtoimprovetheirlivingstandard.ButChinaonlyhas7%ofthelandwhichcanbeusedforfarming.Therefore,farmersinChinahavealwaysbeenlookingforbettermethodsandtechniquestoproducemorefood.Theyhavealsohadtofindwaystoworkonmorelandwithfewerhands.Inthepast20years,greatachievementshavebeenmadeinChinaandChina’sfarming.Withthehelpofnewtechniquesandtheoutstandingworkofscientists,Chinahasnotonlysolvedtheproblemofhungerbutalsotakenaleadinagriculturalresearch,especiallyinsuperhybridrice,cropgenome,fertilizerandsoon,causingproductsto,multiply.Itisakindofagriculturealthoughtherearedifferencesbetweenlandagricultureandwateragriculture.Fishfarminginvolveshumanhelpandproducesfishproteincropsratherthanvegetableormeatproteincrops.Ithasbeenusedfor2000yearsinChina,EgyptandRome.Fishcaneitherbekeptinearthenpondsorincageswithflowingwaterpassingoverthefish.Iffisharekeptinearthenpondstheycanbefedeitherwithextranaturalfoodorwithspeciallyproducedfishfood.Iffisharekeptincagestheyhavetobefedonthespeciallyproducedfishfood.Whenthefisharereadytobeharvestedandsoldforeating,theearthenpondscanbeemptied(ifallthefisharetobeharvested)orthewaterreduced(ifsomeofthefisharetoremain).Inthecagesallthefishwouldbeharvestedtogether.Thereistheproblemofdiseasewithfishkeptincages.Theyaregenerallytooclosetogethersotheygetlice.Theseparasitescanbekilledbygivingmedicinetothefish.Butastimegoesby,themedicineisnotabletokillallthelice.Soifsomeofthelicegetontothewildfishtheykillmanyofthemaswildfishhavenomedicinetoprotectthem.Sofishfarmingcancauseproblemsforwildpopulationsoffish.6.ModernAgricultureForthousandsofyearstraditionalagricultureinChinadidnotchangeverymuch.Mostfarmswereone-familybusinesses.AlthoughChinaisaverybigcountry,only7%ofthelandcanbeusedforfarming.ItisonthisarablelandthatthefarmersproducefoodforthewholepopulationofChina.Itisfromtheearly1990sthatscientistsstartedtodevelopnewtechniquestoincreaseagriculturalproductionwithoutharmingtheenvironment.Chemicalfertilization,forexample,helpstoproducebettercrops,butisharmfultotheenvironment.Newtechniquesshouldincreaseagriculturalproductionbutalsobefriendlytoenvironment.Futureagricultureshoulddependonhightechnologyaswellastraditionalmethods.Notonlyfoodproductionisimportantbutalsotakingcareoftheenvironment.ThebiggestproblemofChinesefarmersistheshortageofarableland.Usingthelatesttechnologies,Chinesescientistsgrowvegetablesingreenhouses.Therootsofthesevegetablesarenotplantedinearthbuthanginwaterthatcontainsallthenutrientstheyneedtogrow.Today,manyvegetablesarenotgrowningardensbutingreenhouses.Theyareprotectedfromthewind,rainandinsects.Thetemperatureiscontrolledwithcomputers,orkeptthesame,nomatterhowtheweatherisoutside.Languagepoints1.DrYuangrowswhatiscalledsuperhybridrice.袁博士种植了被人称作超级杂交水稻的稻谷。what=thething(s)that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.2.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。3.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;searchsomeplace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。4.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.Thankstoyoursupport,wewonthegame.由于你的支持,我们赢得了比赛。5.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/aquarter,etc.）+as+形容词原级+as...表示“是……的多少倍”。e.g.Thenumberofthestudentsinourschoolistwiceaslargeasthatintheirschool.我们学校学生的数量是他们学校的两倍。6.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。leada...life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:diea...death,smilea...smile,dreama...dream,livea...life,sigha...sigh,etc.。care(little/much)about:beconcernedabout“关心,介意”,后面跟从句时,about常省略。carefor:lookafter照料;likeorwant想要,喜欢e.g.AlbertEinsteindidn’tcaremuchaboutwhattowear.WouldyouhelptocareformypetwhileIamaway?7.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Ae.g.Heismoreanordinarypersonthanaleader.