英语优秀教案(人教版)必修五(Unit1GreatscientistsPeriod3)

Period3ListeningandSpeakingTheGeneralIdeaofThisPeriodThisisthethirdperiodofthisunit.Atthebeginningofthisperiod,theteachershould(can)designsomeexercisestoreviewwhatthestudentslearnedinthelastperiod,thatistosay,gooverwhatthestudentslearnedaboutthatJohnSnowdefeats“KingCholera”.Theteachercanbeginwithaskingsomequestionsorhavingacompetitiontomakesomesentenceswith“JohnSnow”accordingtothepassage.Duringthisperiod,listeningandspeakingwillbemainlydealtwith.Atthebeginning,teachersfocusontrainingtheSs’listening.ThislisteningcontentisabouttheimportanceofQianXuesenforspacetravelinChina,thecontributionsmadebyabotanistnamedCarlLinnaeusandtheresearchWhentrainingtheSs’listeningability,teachersshouldstartwithpre-listening,thatis,lead-in.Ifitisnecessary,teachershadbetterintroducesomebackgroundknowledgeaboutthelisteningmaterial.Later,lettheSslistentoit.Atthesametime,teachersshoulddesignsomesimplequestions.Afterthat,theSshaveknownaboutthelisteningmaterial,andthenteacherscanaskthemtolistentoitagaintobereadyformoredifficultquestions.Ifnecessary,theSscanbegivenanothertimetolisten.Whilepracticing,teachershadbetterofferstudentssomeadviceonhowtodoitwell.Especially,trainthestudentstopredictwhattobetalkedaboutaccordingtothehintsandlimitedinformationandletthemformthegoodlisteninghabitoflisteningwiththepurposeoffindingusefulinformationandtosummarize.Certainly,supposetherearemanynewwordsandexpressions,teachersshouldhelpthemtodealwiththematthefirstplace.Allthelisteningpracticeshouldfocusondevelopingthestudents’listeningskill.Afterpracticinglistening,theSsareexpectedtolearnsomeexpressionsabouttalkingaboutscientificjobaswellasscientists’achievementsandrecountstories.Besidesthose,thestudentsareexpectedtolearntheskillofdescribingaperson.Duringthecourse,teachersshouldrankclassactivitiesfromtheeasytothedifficult.First,askthemtolearntheexpressions.Then,askthemtoimitateittohaveadialogue.Finally,thestudentsareexpectedtocreateadialogueordiscussthegiventopic.Inordertodrawstudents’attention,theteacherhadbetterprepareforsomeinterestingsituations.Thisperiodcentersonemphasisonspeakingandlistening.Theteachershouldtryhisorherbesttoencouragethestudentstosaysomething.Don’talwayscorrectthemistakesthatthestudentswouldmakewhilespeaking.Otherwise,thestudentswouldfeelreluctanttospeakouttheiropinions.TeachingImportantPointsTrainthestudents’speakingabilitybydescribing,talkinganddiscussing.TeachingDifficultiesThreeDimensionalTeachingAimsKnowledgeaims:Trainthestudents’speakingabiliEncouragethestudentstolearnfromscientiststoshowinterestinscientificexplorationandresTeachingProcedureStep1GreetingT:Todaywewillbeginourlessonwithacompetitionbetweengroups.Inthelastperiod,welearntaboutJohnSnowwhodefeats“KingCholera”.Now,pleasesaysomethingthatyouknowaboutit.Ifyouofferacompletesentence,youwillbegiventenmarks.YourgroupwillbegivenS:JohnSnowwasawell-knowndoctorinLondon,whoattendedQueenVictoriatoeasetheS:Hebecameinspiredwhenhethoughtabouthelpingordinarypeopleexposedtocholera,S:JohnSnowgotinterestedintwotheoriesexplaininghowcholerakilleS:Hebelievedinthesecondtheorythatispeopleabsorbedthisdiseaseintotheirbodieswiththeirmeals.Fromthestomachthediseaseattackedthebodyquicklyandsoontheaffectedpersonwasdead.(Theteachershouldencouragemorestudentstojoininthecompetition.Attheendofthecompetition,theteachershouldannouncetheresultofthiscompetition.PraisethewinnerandS:WeshouldbaseourtheoriesonprSs:...T:Yes,wecanlearnalotfromthescientist.Infact,thereareagreatnumberofpeopleworkingonscienceworthyofbeinglearnedbothathomeandabroad.CanyounamesomeS:Archimedes,whodiscoveredthatobjectsinwaterareliftedupbyaforcethathelpsthemfloat.S:DarwinwroteabookexplaininghowanimalsandplantsdevelopedastheenvironmentS:Zhanghenginventedtheearliestinstrumenttotellpeoplewhereearthquakeshappened.Ss:...T:Youdidagoodjobandlistedmanyscientistsaswellastheircontributions.Today,weareStep3Listening(onPages5-6)Task1Pre-T:Firstlet’senjoythepicture.WhatcanT:PresidentJiangZeminvisitedQianXueseS:Heishonoredas“ChineseTask2FirsT:Wearetolistentothematerial,whichisaboutQianXuesen.YuPingistellingherfriendSteveSmithaboutQianXuesen’slife.IfyouwereYuPing,whattopicswouldyouliketocoverS:Thedatewhenhewasbornandhedied;theplacewherehewasborn,lived,studiedandT:Excellent.Whenwetalkaboutandintroduceascientist,weusuallydescribetheseaspects.Now,listencarefullyandtickoutTask3SecondListeningT:Thistime.You’llwritedowntheanswerstothefivequestions.Boysandgirls,howcanweS:Weshouldgothroughthequestionsfirstandkeeptheminmind.Whenwearelistening,S:Weneedn’twritedowneachwordoftheanswers.Wejustwritedownsomekeywords.LaterwecT:Youareclever.Nowpleasegetready.First,lookthroughtheintroductiontothe(Twominuteslater,theteacherplaysthetape.ThengiveSstimetoorganizetheirsentences.)(Ifthestudentsmakesomecommonmistakesortheyseemtohavedifficultyinfindingoutanswers,teacherscangivethemsomehintsandletthemlistentoitagain.Afterthat,checktheanswers.IfthestudentsfeelitdifficulttomakesenseaboutthekeywordsandunderstandtheTask4Post-T:Afterlistening,wouldyoupleaseanswe(Atthisparttheteachermayh