2016-2017学年 译林版 必修5 Unit2 The invironment Welcome to the unit课件 (11)
2016-2017学年 译林版 必修5   Unit2 The invironment  Welcome to the unit课件 (11)第3页

Objectives

To get a general idea of what we are going to learn in this unit To learn the types of environmental problems in this unit To find some solutions to the environmental problems in this unit