1、Unit7What’sthehighestmountainintheworld?SectionA(1a-1c)泽家学校向兴秀Nowlet’enjoythebeautifulscenesofQomolangma:QomolangmaQomolangmaisthehighestmountainintheworld./'tʃəuməu,la:ŋmə/珠穆朗玛峰Itis8,844.43metershigh./mi:tə/米How high is Qomolangma?TheSaharaisthebiggestdesertin/sə'hɑ:rə/撒哈拉沙漠/'dezət/沙漠t