Unit 7 Protect the Earth 第一课时课件（23张PPT)

课件23张PPT。19782015Protect the EarthUnit 7Can you give titles(标题) to the pictures?Let’s watch!1234Can you give titles(标题) to the pictures?Save water节约Save energy 能源Save treesDon’t use too much plastic 塑料1234Let’s watch!Please try to match .(快速浏览课文将资源与用途连线).1. We use water toA. make things2. We use energy to3. We use wood to4. We use trees to5. We use plastic toB. drink and cleanC. drive carsD. make bags and bottlesE. keep the air cleanLet’s match!They’re useful. We use … to …Tip:When you are skimming you must pay attention to the first sentence. 快速浏览时注意每段第一句。goodListen to part 2 &3 and fill in the blanks.听2、3部分填空。 1. Where does energy come from?Most of our energy comes from _____ and ___. 大多数coaloil2. Where does wood come from?Wood comes from ______ . treesLet’s listen!plastictreeswaterenergyIn many places, there is not much water.There is not much coal or oil on Earth.People cut down too many trees. People use too much plastic. Discuss in groups and underline the problems of them (小组讨论划出它们存在的问题）Let’s read!Underline the sentences of solutions and read(划出解决方法并读一读). We should not waste water.
We should reuse and save it. We should save energy.
We should not drive so much. We should not cut down too many trees. We should not use too many plastic bags
or bottles. We should use paper bags and
glass bottles. reuseLet’s read!waterenergytreesplastic看到单词说一说！看到 用力拍两下吧！Let’s play!too much plastictoo many treesprotect the Earth use glass bottlesuse paper bagsbags or bottles coal or oilcut downsave energyGame over!waste waterusefulGame over! How to protect the EarthWe should save______ and ________ water. We should not ________ water.
We should save_______ .
We should not ______ so much.
We should save ________.
We should not cut down too many ______.
We should not use too many ______ bags or bottles. We should use ________ bags and ________ bottles. reusewaterwastetreesdriveenergytreesplasticpaperglassSave, save, save water.Save, save, save energy.Save, save, save trees.Save, save, save plastic.We should not use too much plastic.Let’s think!完成书P70练习.Let’s imitate!Tip: 陈述句用降调
一般疑问句用升调Let’s imitate!Tip: 陈述句用降调
一般疑问句用升调学生开展绿色环保公益活动中国水周，我们在行动节水周学生作品上街宣传节水 watertreesenergyDon’t use too much plasticLet’s try to say活动要求：选择一幅图播报。Key words: …comes from …
use … to…
should … / should not …
Save waterWe should not water. wastewaste浪费reusereuseReuse water