natureUnit 13人教新起点六年级下册英语Lesson 73Having a debateProjectAre they beautiful?What do the pictures lead you to think of?.342What diffrence are they between NO.3 and NO.4?说一说As a result of mankind and technology, natural resources have been seriously affected and natural disasters attack us fluently.Fast reading1. What is water?2. What can we use water to do?Water has no colour,no shape,no taste and no smell. We use water to drink,to cook rice,to take showers,to wash clothes,and so on..