(
课件网) Unit 3 Trees and us 主题范畴： 人与自然 主题群： 自然生态；环境保护 子主题： 热爱与敬畏自然，与自然和谐共生 Key question Why do we need trees New words and phrases P43 1. product / pr d kt/ 2. side /sa d/ 3. borrow / b r / 4. call on *5. bloom n. 产品；制品 n. 一面 v. 借；借用 号召；动员；要求 n. 鲜花盛开 （打*为课外拓展或已学词汇） Warming Up Enjoy a short video below and find out what do we do for trees. We have been chopped down nearly half of world’s trees since we live on Earth. Human are cutting down 15 billion trees each year. deforestation: cutting down too many trees / forests So, we should try to save them! While-learning Speaking Trees are important to us. Talk in groups about how we can save trees. Look at the example and use the list below to help you. Talking about ways of saving trees P43 P43 P43 We can reuse paper. 再次利用 Look at the pictures and talk about the method to save trees. We should find ways to use less paper. For example, we can reuse paper — we should write or print on both sides. Besides, we can borrow books from the library or share books with friends and classmates. ... 双面打印 We can tell others why trees are important. Look at the pictures and talk about the method to save trees. hold a publicity campaign 宣传活动 We can call on people to stop cutting down trees. Look at the pictures and talk about the method to save trees. 号召 We can buy environmentally-friendly product. 环保的 Look at the pictures and talk about the method to save trees. use other forest-friendly material instead of wood to make furniture. Look at the pictures and talk about the method to save trees. We can plant more trees. take part in the planting activities. For example: In order to save trees, we can plant more of them. Trees Planting Day is a good chance for us. How to save trees Listen and repeat. Pay attention to the letters in blue. Can you give more examples P43 Listen and repeat. Pay attention to the letters in blue. Can you give more examples P43 New Phrases 做某事的方法 _____ 呼吁某人做某事 _____ 砍伐；砍倒 _____ 再次使用 _____ 双面打印 _____ ways of doing something call on sb. to do sth. cut down reuse print on both sides re- 表示“再；又” Post-learning stop doing sth. 停下正在做的事情 stop doing sth. 表示“停下正在做的事情” stop to do sth. 例句： 1. If we don’t _____(停止说话), the teacher might be angry. 2. Let’ s _____(停下来去吃午饭) lunch first. stop talking 表示“停下正在做的事情，去做另外一件事” stop to have except, except for, besides 1. except 意为“除……之外”，除去的部分不包括在整体范围内。例如： The office is open every day except Sunday. 除了星期日，这件办公室每天都开放。（星期日不开放） 2. except for 意为“除……之外”，除去的部分与主语不是同类事物。例如： The composition is very good except for some mistakes. 除一些错误外，这篇作文很好。（错误和作文不同类） 3. besides 意为“除……之外（还）”，除去的部分包括在整体范围内。例如： I have a few ... ...
