九年级英语上册unit2topic1pollutionhascausestoomanyproblemssectiond导学案新版仁爱版

Unit 2 Topic 1 Pollution has causes too many problems 【学习目标】1.复习直接引语和间接引语的用法；2.总结污染的种类及危害。【预习案】一、 读1