Unit 4 Planting trees is good for us 第2课时

课件20张PPT。第二课时Unit 4 Planting trees is good for uskeep the air cleanplant treeskeep us coolmake the place beautifulReviewWhat can trees do?
Trees can keep the air clean.
Trees can … ReviewPlanting trees is good for us.
What should we do? Free talkC Let’s PractiseC Let’s PractiseC Let’s PractiseC Let’s PractiseC Let’s PractiseWhy do people cut down trees? Free talkBecause we want more houses, roads and buildings.
Farmers also need more land to grow rice and vegetables. D Let’s ReadWhy do people cut down trees? People cut down trees! Why do people cut down trees? Because we want more houses, roads and buildings. Farmers also need more land to grow rice and vegetables. But the weather is changing. D Let’s ReadIt’s getting hotter. What can we do? We need to plant more trees. Trees help to make the air cool and fresh. Let’s plant more trees to make the Earth clean and green. D Let’s ReadD Let’s Read
Trees are our friends!
Let’s protect(保护) trees! 活动城市绿化先锋 六人一组，老师给每组准备一张城市地图。小组讨论，在城市需要绿色的地方画上树木，并说说这些树能带来什么益处。We can plant trees on the roads. Because the trees can keep the air clean. The trees can make the roads more beautiful. 描述怎样种植好更多的树木：I will …
We should ...1.观看Part D课文动画并跟读，按照正确的语音、语调朗读课文。2.查阅资料，了解过度砍伐树木对我们生活的影响。
3.预习Unit4 Part E, Part F。Thank You