4、情,从而提出问题,讨论问题,解决问题。具体明晰导语设计Watch the photos and talk about them.Doyouknowtheseplaces?DoyouknowhowhighisQomolangma?DoyouknowhowlongistheNile?DoyouwhatsizeisTheSahara?精炼灵活紧扣学习目标板书设计Unit5What’sthehighestmountainintheworld?(SectionA1a-1c)A:What’sthehighestmountaininthewo