2019-2020年高中英语Unit21Lesson1ChewingGum教案1北师大版选修7

1、2019-2020年高中英语Unit21LessonlChewingGum教案1北师大版选修7TeachingAims:1. Toimprovethereadingabilityofthestudentsandhelpthemstudythestructureofthetextandunderstandthetextwholly.2.Toenrichthestudents'knowledgeabouttheadvantagesanddisadvantagesofchewinggumandencouragethemtotalkabouttheproblemofstudents'c

2、hewinggumintheschool.TeachingDifficultiesandEmphasis:1.Helpthestudentstofindmoreadvantagesanddisadvantagesofchewinggum.2. Helpthestudentstocarryoutthediscussion.Teachingmethods:1. Task-basedteaching.2. Individualandgroupwork;Discussing.TeachingAids:puterandworksheetsTeachingProcedures:Step1:Leading-

3、in1. ShowthepictureofaNBAstar(MichealJordan).1) Whoistheman?2) Whatisthemaneating?Step2:Reading1.Doyoulikechewinggum?2. Isitgoodorbadforourhealth?Tochewornottochew3. Listentothetapecarefullyanddividethetextintoseveralparts.Part1(para1):introductionPart2(para2-4):theadvantagesofchewinggumPart3(para5-

4、7):thedisadvantagesofchewinggumPart4(para8):conclusion4. Findtheadvantagesanddisadvantagesofchewingguminthetext.AdvantagesDisadvantages1. helpingpeoplefightbadbreath2. helpingpeoplestoptoothdecay1. makingdigestionmoredifficult2. causingfeelingsofsicknessor3. helpingpeopleloseweight4. helpingsmokersg

5、iveupsmokingheadaches3.leadingtostomachsickness4.makingpeopleneglectbrushingtheirteeth5. Findmoreadvantagesanddisadvantagesofchewinggum(showsomepicturesorvideos).6. Decideifthefollowingstatementsaretrueorfalse.1).Dietspecialistsseldominformusthatitisimportanttochewourfoodproperly.(F)2).Chewinggumcan

6、notfightbadbreath.(F)3) .Ifyouhadchewedsugar-freegumregularlyfortwoyears,youwouldhavelostupto5kilos.(F)4) .Ifpeoplechewed50timesperminutefor24minutes,70kilocalorieswereburned.(T)5) .Chewinggumcanhelpsmokersgiveuptheirbadhabitmoresuccessfully.(T)6) .Whenwechewgum,itwillnotcauseourbodiestoproducediges

7、tivesjuices.(F)7) .Chewinggumforlongperiodsoftimewillmakeourstomachbeetense.(T)8) .Chewingsugar-freegummustcausethenumberofyoungpeoplewithbadteethtorise.(F)9) .Onbalance,itwouldbebettertochewgum.(F)7. Fillintheblankswiththeproperwordswhichareinthetext.Ononehand,chewinggumcanfightbadbreath.Somedentis

8、tsbelievethatsugar-freegumhelpstostoptoothdecay.Gumcontrolspeople'sappetitesoitcanhelppeopletoloseweight.Gumcanalsocontainmedicine.Ithelpssmokersgiveuptheirbadhabitsuccessfully.Ontheotherhand,chewinggumhasitsnegativeside.Dietspecialistssaychewingstartstheproductionofstomachacidanddigestivejuices

9、.Itwillmakedigestionmoredifficultandmaycausefeelingsofsicknessorevenheadaches.Further,chewinggumforlongperiodsoftimemayleadtostomachsickness.Onbalance,we'dbetterforgetchewinggum,eathealthyfoodsandneverstartsmoking.Sothatwecanliveahealthylife.8. ShowthepictureaboutthepollutionintheTiananmenSquare

10、onNationalDays.1) .Whereisit?2) .Whataretheydoing?9. IntroducesomethingaboutthenewsStep3:DiscussionNowadaysmanystudentslikechewinggumintheschool.Somestudentschewgumafteramealtogetagoodsmell.However,somechewgumintheclassorevenwhentheyarehavingatestthenthrowitanywhere.Doyouthinkitrightforusstudentstoc

11、hewgumintheschool?Giveyourreasons.Step4:HomeworkWriteanarticleaboutyourdiscussion:Doyouthinkitrightforusstudentstochewgumintheschool?2019-2020年高中英语Unit21LessonlChewingGum教案2北师大版选修7Teachingaims:Toreadabouttheeffectsofchewinggum.ToreviseconditionalsTopracticeusingmixedconditionalsTeachingdifficulties:

12、somestudentsmaynotrememberthefirst,secondandthirdconditionalswell.Theformofmixedconditionalsmaybedifficultforsomestudentstomasterandtheymayneedmorepracticewithit.TeachingAids:puterandvideorejectionTeachingprocedures:Step1:lead-in1. Showstudentsadvertisementanvideoaboutgumsoastoraisetheirinterestonch

13、ewinggumandmakethemthinkoftheeffectsofchewinggumindailylife.2. Studentsworkinpairsdiscussingthequestionsandrequirethemtosharetheirideaswithclass.Discussinpairsandanswerthefollowingquestions.Whatdoyouthinkofchewinggum?Isitgoodorbadforyou?Doyouoryourfriends/familybuyit?Why?Whatdoyoudoafterchewingit?3.

14、 Studentslookatthetitleandpredictwhichissuesmaybecoveredinthearticle.Then,studentsworkindividually,readingthearticlequicklytofindoutwhichoftheirguesseswereright.Step2:readtolearn1. Studentsdividethetextintofourparts,thensummarizethemaintopicofeachpart.Part1Part2Part3Part4(paragraph1-1)Introduction(p

15、aragraph2-4)Benefitsofchewinggums(paragraph5-7)Thenegativesidesofchewinggums(paragraph8-8)Betteractivitiesthanchewinggums2.Workindividually,studentstryandfillthetablewiththeinformationtheyrememberfromthefirstreading.Afterfinishingthetable,studentsdiscussitwitheachotherandthencheckanswersasaclass.Adv

16、antageDisadvantageHelpingpeople:1. fightbadbreath2. prevent/stoptoothdecay3. loseweight4. giveupsmoke1. makingdigestionsmoredifficult2. Causingfeelingsofsicknessorheadaches3. Leadingtostomachsickness4. Makingpeopleneglectbrushingtheirteeth3.Studentsworkinpairsansweringthequestions.Askthemtolocatethe

17、relevantpartsinthetextwhichgivetheanswers.1. Howseriousistheproblemofbadbreath?2. Whatisaddedtosugar-freechewinggumwhichmayhelppreventtoothproblems?3. Accordingtooneresearchproject,whatisonewayofburning70kilocalories?4. Whatwouldbetheeffectonthestomachofconstantchewing?5. Whatotheractivitiesarestatedthatarebetterthanchewinggum?Step3:grammar1.Studentsmatchtheconditionalsentencesinitalicisnthetextwiththefol