2、1.Pre-listeningactivities.1.Review【温故】ReviewthemaintargetlanguagesofUnit4.T:Boysandgirls,lookatthepicture.What’s this in English?Ss:It’saschoolbag.T:Whereistheschoolbag?Ss:It’sunderthetable.T:Great!Next,pleasepracticethisconversationwithyourpartner.Asksomestudentstoshowtheirnewconver