1、Unit 4 Planting trees is good for us一、重点词汇：air 空气 place 地方 Tree Planting Day植树节plant trees 植树 keep the air clean保持空气清洁keep us cool让我们保持凉爽make the place beautiful使这个地方更漂亮trees with flowers 开花的树look after 照顾water the young trees给小树浇水cut down 砍倒 more and more越来越多get hotter and hotter变得越来越热二、句型：1. Tree
2、Planting Day in China is on12th March.中国的植树节是在三月十二日。2. Planting trees is good for us.植树对我们是有益的。3. My friends and I enjoy planting trees. 我的朋友们和我都喜欢植树。4.We should look after them. Soon they will become big trees. 我们应该照顾好它们。很快它们就会变成大树。5. The earth is getting hotter and hotter.地球变得越来越热.6. Trees help to
3、 make the air cool and fresh. 树可以帮助使空气清新凉爽。7. Lets plant more trees to make the Earth clean and green.让我们植更多的树来使地球更绿更干净。三、名师精析1. My friends and I enjoy planting trees. 我的朋友们和我都喜欢植树。当表达某人和我的时候，要把第一人称I 放在后面。如： My sister and I are both students.enjoy 意为“喜欢；享受”enjoy doing sth 表示“喜欢做某事”如：He enjoys swimming。 2. The earth is getting hotter and hotter.地球变得越来越热.hotter 是形容词hot 的比较级，表示“更热的”,在英语中，“比较级+and+比较级 “ 表示“越来越” 如： colder and colder 越来越冷better and better 越来越好more and more 越来越多3.知识拓展the+比较级，the+比较级，表示“越越”。如：The more we do for the people，the happier well be我们为人民做得越多，就越幸福。The more，the better. 多多益善。
