Unit 3 The environment and us Lesson 19 课件

课件18张PPT。UNIT 3THE ENVIRONMENT AND USLESSON 19Let’s learn…Let’s protect the treesTrees are important in many ways.Trees are important to animals.Monkeys and squirrels spend much of their time in trees.Birds make their homes in trees.Cats climb up trees when dogs chase them.Trees are important to the environment. They clean the air and water.They give us shade and keep the Earth cool.They help slow down the wind and sand from moving.Sadly, people cut down many trees in the forests.They use the land to grow crops.What do you learn from this story?Talk with your friends.Game Time!记忆大比拼！老师将单词卡片按照随意
顺序摆好，学生记忆，
之后老师随意打
乱顺序，学生根
据记忆将单词还原。Homework1.Remember these new words.
2.Read the dialogue to your parents. Thank You!