第二课时一、单项选择。( )1.Thisis__________newschool. A.we B.our C.us( )2.—__________—BecauseIhaveatoothache.A.Whendoyouseethedoctor?B.Howdoyouseethedoctor?C.Whydoyougotoseethedoctor?( )3.We__________maketheairdirty. A.shouldB.shouldn'tC.don't( )4.—Let'sgoouttoplay,SuNan.—I'msorry,I__________domyhomeworkfirst. A.havetoB.canC.don't( )5.Weshoulddo__________forourearth. A.somethingB.someC.what二、看图,用Weshould…或Weshouldn't…写句子。1. ______________________________________________2. ______________________________________________3. ______________________________________________4. ______________________________________________5. ______________________________________________,答案：一、1.B 2.C 3.B 4.A 5.A二、1.Weshouldn'tcutdowntrees.2.Weshouldn'tpickflowers.3.Weshouldplantmoretrees.4.Weshouldn'twastewater.5.Weshouldcarefortheanimals.
