1、Unit 2Healthy eatingSection Grammar情态动词()ought to be more carefuloughtnt/ought not to scoldOught I to leaveyou ought tohad tomustnttelldonthave toneednt clean it Need I stayyou mustyou needntcouldnt have enjoyedshould have arrivedneednt have hurried ought to/should have givenmustnt smokeneednt have
2、hurriedhave to goneednt buymust have rainedought not to speakmust comeought to/should gomust have beenhave to attend an important class meetingshould be limited to 400 words or soyou should remembercant have goneneednt get up earlycould have helpedshould have made full preparationsneednt have worriedshouldnt always rely just oncouldnt hear ourselves speak