1、2Introduction family outingbecause fresh airbe good forgrow vegetablesbecausecan make us healthy4Because he cuts down trees.6Why do people cut down trees?Listen and answer1. Because we want more housesroadsbuildingsWhy do people cut down trees?2. Farmers also need more land to grow rice and vegetabl
2、es.Whats changing?But the weather is changing.Its getting hotter.形容词比较级+and+形容词比较级，表示越来越hotter and hotterbigger and biggerlonger and longer more and more10What can we do?Read and answerWe need to plant more trees. Trees help to make the air cool and fresh.Lets plant more trees to make the earth clean and green.Why should we plant more trees?2022-5-292022-5-2914 Trees are animals home!Trees are good for us! Lets plant more trees!2022-5-29Homework1. 制作保护环境的宣传卡片，并用英文写上简单的宣传语。2. 完成mini book。
