3、n:AskthemtosummarizethedifferentformsandgrammaticalrulesofInfinitiveinActivity1in5minutes.2.Racing1:racetopresentthededuction.3.GrammarteachingStep3:Practice1.DotheexerciseinActivity2andActivity3.2.Racing2&Racing3:studentsrace to be the first to answerthequestioninActivity2andActivity