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形容词的比较级和最高级Teachingobjectives:1.Knowledgegoals○1规则形容词原级变化比较级与最高级的方法○2用含有比较级与最高级的句子来描述事物2.Abilitygoals○1基本掌握规则形容词原级变化比较级与最高级的方法○2用含有比较级与最高级的句子来描述图片和发表观点Teachingfocus：1.Thecomparativeandsuperlativeofadjectives.2.Howtousecomparativeandsuperlativedegreestocomparethings.Teachingdifficulties:1.基本掌握句型“Ais…thanB”2.基本掌握句型“Aisthe…ofall.”Teachingmethods:直观教学法、任务教学法和归纳法。Teachingaids:Multi-mediaTeachingprocedures:Step1.Pre-task1.Leading-inUsefoodtoleadinthecomparativeandsuperlativedegrees.2.GuideSstoknowhowtochangeadjectivesintocomparativeandsuperlativedegrees.3.PracticeStep2.While-task1.ShowsomepicturesandaskSstodescribethemusing“Ais…thanB”.2.Practice3.AskSstouse“Aisthe…ofall.”todescribethepictures.4.PairworkStep3.Post-taskGiveasituation,lettheSschoosethebestwaytotraveltosp.Tips:fast—slowcheap—expensiveS1:Whichisthe____ofall?/Iwanttogothereby____.S2:The____isthe____ofall./Becausethe____is____thanthe____.Step4.HomeworkWrite8sentencesusingthecomparativeandsuperlativedegrees.