高一英语 Unit19《Modern agriculture第二课时》精品教案 旧人教版第一册VIP免费

TheSecondPeriodTeachingAims:1.Enablethestudentstolearnsomethingaboutmodernagriculturefromthetext.2.Enablethestudenttomasterthenewwordsandexpressionsinthetext.3.Getthestudentstohavetheabilitytograspthegeneralideaofanpassageasfastaspossible.TeachingImportantPoints:1.Howtoimprovethestudents'readingability.2.Howtogetthestudentstomasterthenewwordsandexpressionsofthetext.TeachingDifficultPoint:Howtoimprovethestudents'readingandwritingability.TeachingMethods:1.Discussiontoraisethestudents'interestinagriculture.2.Ask-and-answermethodtohelpthestudentsunderstandthetextbetter.3.Freetalktoimprovethestudents'speakingability.TeachingAids:1.ataperecorder2.aprojectorandsomeslides3.acomputerformultimediauseTeachingProcedures:stepⅠ.GreetingsandRevisionGreetthewholeclassasusualT:Attheendofthelastperiod,Iaskedeveryoneofustojoininadiscussion.NowI'llaskagrouptorepeatthediscussion.Whowillactitoutforus?WangHong,actitforuswithyourgroup,willyou?Wang:Yes.…(Teacheraskstwogroupstorepeattheirdiscussionbeforetheclass.)stepⅡ.PreparationforReadingT:Somuchforrevision.PleaseturntoPage113.Let'slearnthenewwordsandexpressionstogether.LiMing,readthenewwordsandexpressionsofthisperiod,please.Beginwiththeword“arable”andendwiththeword“soil”.(Teacherandthestudentslearnthenewwordsandexpressionstogether.Teachercorrectsstudents'mistakesinpronunciationandgivessimpleexplanationsofsomewordsifnecessary.)T:Arethereanystudentscomingfromthecountrysideinourclass?Ss:Yes.Alotofusstudentsarefrompeasantfamily.T:Haveyoueverworkedinthefields,WangFei?Wang:Yes.Ioftenworkinthefieldwithmyparents.Icandoalotoffarmwork.T:Haveyoueverheardofanythingaboutfarminginthepast?Ss:Yes,Ihave.T:NowturntoPage34.Let'sdopre-reading.Discussthequestions.Group用心爱心专心1work.Writeyouranswersonapieceofpaper.(Afterafewminutes.)T:Areyouready?(Ss:Yes.)Whowouldtellussomethingabouttraditionalandmodernfarming?SA:Inthepast,farmersgrowcropsinthetraditionalway:Usecattletoploughthefield;farmersworkinthefieldmostofthedayallyearround,buttheycouldnotproduceenoughfoodforthewholepopulation.Nowtheygrowcropsinthemodernway.Theyusemoderntechniquesintheirfields,suchaschemicalfertilizers,greenhousesandsoon.T:Whowouldanswerthesecondquestion?SB:I'lltry.Theadvantagesare:chemicalfertilizers,electronicpumpsandotheradvancedtechnologyareused.Farmerscanspendlesstimeonfarmsandmuchmoregrainisproduced.Thedisadvantagesare:theair,thewaterandthesoilroundusaremoreorlesspolluted.Sc:I'llsaysomethingaboutotherchangesthathavetakenplaceonfarmsinthelast100years.Inthepast,wedependedonheavenandwecoulddolittlewhennaturaldisastershappened.Now,wecandoartificialrainfall.GMmakesbetterseedspossible.Inthesamefields,betterseedscangiveusmuchmoregrain.Besides,allkindsofscientificwaysoffarmingareusedinfarming.Farmersinourcountryarebecomingricherandricherdaybyday.T:Verygood.StepⅢ.FastReadingT:Nowreadthetextfastandthenanswerthequestionsonthescreen.1.Whenwasmoreadvancedtechnicalinformationwasbroughtinfromabroad?2.Whatisimportantforfutureagriculture?Whatshouldfutureagriculturedependon?3.Whatdoes“which”refertointhelasttwolines?(Afterafewminutes.)T:Areyouready?Ss:Yes.T:Pleasegiveustheanswerstothequestions.SD:Inthe1980s,moreadvancedtechnicalinformationwasbroughtinfromabroad.SE:Bothfoodproductionandtakingcareoftheenvironmentareimportant.Andfutureagricultureshoulddependonhightechnologyaswellastraditionalme...