7、healthylifestylesandknowmoreaboutHIV/AIDS.2.TohelpstudentstakeapositiveattitudetowardspeoplewithHIV/AIDS.教学重、难点 Usingwhattheyhavelearnedinthisunittosolverealproblems.Step1 Revision1.Checkthehomeworkexercises.2.Dictatesomeusefulnewwordsandexpressionsinthisunit.Step2 Le