Unit 4 The Water Journey Lesson 2Let learnSun EarthLakeLakeLet practiceFirst,the sun makes water warm.Next,water goes up and become clouds.Then the clouds meet cool air and turn into water drops.And then water fall down to the earth.Let reviewFirst,Next,Then,And then,HOMEWORK 9月听读课文三遍。9月抄写本课单词。Thank you!