unit 19 modern agriculture 第一课时教案

1 / 8 Unit 19 Modern agriculture 第一课时教案 Unit19modernagriculture 第一课时教案 : Talkaboutmodernagricultureanditseffectsonpeople slife learnhowtogivesomebodyadviceandmakedecisions. learntoreadstatisticalgraphs Similardialoguepresentationwithnewwordsandexpressionsusedwithin :taperecorder,slides StepIWarmingup :getSstoworkinpairs,andmake NameBreakfastSnacksLunchDinner Grandma/grandpa mother/father yourself ,andaskthemsomequestions: T:“Whatthegraphisabout,lookatthewordsaboveorbelowt2 / 8 hegraph?” Ss:“Growthofmajorproducts1991 -95comparedwith1986-90percentages” T:“Whatkindoffoodwereshownonthechart?” Ss:“Therearegrain,cotton,oil,sugar,meat,fish,fruit.” T:“Whatisshownonthey -axis?” Ss:“thepercentageinSB” ,studentscandiscusthreequestionsingroups. Question1:Howarepeople seatinghabitschangingovertheyears?Whydoyouthinkthishappens? (earnmoremoney;learnabouthealthyfood;eatmorenutritiousfruitjuices;eatmorefishandmeat,etc.) Question2:Howhasagriculturalproducechangedduringtheseyears?Whatdoyouthinkcausedthesechanges? (variousfarmingproducts;makemoremoney;newandadvance3 / 8 dfarmingtechnique,etc.) Question3:Whateffectsdoyouthinkthechangesineatinghabitswillhaveonagricultureornature? (peopleneedmoremeatandfruits;farmersneedmorefarmlandtogrowdifferentcropsandproducedifferentfoods;farmersneedtoraisemorepoultry(家禽 ),etc.) T:“Inwords,changesinagriptomeetpeople sneed.” StepIIListening T:“Ioftenfindtheexpression returngrainplotstoforestry innewspapers,doyouknowwhatdoesitmeaninchinese?”(teacherwritetheexpressionontheblackboard) Ss:“Inchinese, 退耕还林 .” T:“Whydoyouknowfarmersshoulddoso?” Ss:“Theymustprotectforests./inordertoprotectforests.” 4 / 8 T:“HaveyouevenhadexperienceofsandstorminBeijing?howaboutsandstorm?” Ss:“y es,itissoterribleweather.” T:“Whatcausesandstorm?” Ss:“manyforestsaredestroyed,theenvironmentalproblemsisserious.” T:“Howcanfarmersmakethelandfertile?” Ss:tousechemicalfertilizerstoimprovethesoil. :“,someofitsproblemsandsomesolutionsora lternativestotheseproblems.” ,askthestudentstolistenagain,andticktheitemsthelisteningtextisabout. ,teachercangetSstolistenanotherlisteningtextanddosomeexercises. ,teachergetSstofinishtheexercisesinWorkbook/Listening(page107) :,/sugarcane/wheat/treesorraisepigs. 5 / 8 : Inmyopinionyoushould IfIwereyou AsfarasIcanseethebestthingwouldbeto Wouldn titbebetterif? Ithinkheisright Wehavetomakeachoice Wecan tdoboth,so Theotherideasoundsbettertome (Workbook,page108) letSsworkinsmallgroupsoffiveandassignanyofthethreetopictothegroups giveSstimetoreadthethreedescriptionsandaskquestionsaboutthem. askSstodiscusstheseissuesinawaythattheydevelopandgivetheirownopinionabouttheissuesathand. Teacherexplainsomelanguagepointsinthebook .whatdoyouthinkcausethesechanges? 6 / 8 doyouthink 是插入语，经常位于疑问词（组）后，如 Wheredoyouthinktheoldladyis? 有时也可以放在句尾。例如： Whatisit,doyouthink? causev.=bethecauseof(sth);makehappen 造成（某事物）；使发生 如： Smokingcancauselungcancer.吸烟可导致肺癌。 She salwayscausingtroubleforpeople.她总是给人添麻烦。 .makeadecision“ 做决定，决定 ” 如： ImakeadecisiontolearnEnglishhard. Becauseofbadweather,theymakeadecisiontoputoffthemeeting. .youwanttousethelandinthebestwaypossibleanddothebestforeverybodyinthevillage 为了村里的每一个人，你想尽自己最大的努力，以最好的方法来使用这块地。 Inthebestwaypossible 尽能最好的方法。 Possible 表示 “ 尽可能最 ” dothebest 表示 “ 尽力 ” 。如： Shedothebesttohelptheoldlady.她尽力地帮助这个老7 / 8 妇人。 StepVExercise ,page108. （ showslides） _alotofpigsonhisfar.(B) _inhissparetime.（ c） _intothenight.(A) A deeply;deepB deep;deeplyc deep;deepD deeply;deeply _chickens,cattleandcropsaswellonthefarm.(A) _goingtothecinema.(B) t ,soIhadtopayforthedamage_theothercar.(c) _him.(B) 8 / 8 8._shouldamanhavecourage,_heshouldhavewis