Unit7 Protect the Earth (第2课时） 课件（27张PPT）

课件27张PPT。Unit 7 Protect the EarthStory time (Period 1) the Earthoilcoalwoodwaterrich 富有resources 资源coaloil our comes from coal and oil.energyenergyMost ofMost of能源大部分的energyuseful 有用的Do you know?there will be 40 thirsty countries in 10 years.If we do nothing to help,there will be No coal on Earth in 113 years.there will be No oil on Earth in 53.3 years.there will be No trees on Earth in 775 years.My friends , what should we do?protect the Earth保护 Q: How can we protect the Earth?Q: How can we protect the Earth?Save waterWhat do we use water to do?We use water to ……We drink water.Save waterWe should not water. wastewaste浪费reusereusereuse water= use water again请同学们轻声地和录音一起读
Read with the recordWater is useful.Watch the videoSave energy
1. Most of our energy comes from coal and oil.
2. There is a lot of coal and oil on Earth.
3. We should drive cars every day. TFFThere is not much coal or oil on Earth.We should not drive so much.too often太多，太频繁Task 1: Read and circle
自读两段课文，圈出疑难词句。
cut down treeswoodTask 2: Discuss in pairs
同桌讨论，回答问题。 What should we do?
What shouldn’t we do?Task 3: Read the passages
We use plastic to make bags and bottles,
but too much plastic is bad for the Earth. We should not use too many plastic bags or bottles. We should use paper bags and glass bottles.Task 3: Read the passageDon’t use too much plasticDon't Let Our Tears Be the Last Drops of Water on the Earth.
不要让我们的眼泪成为地球上最后的一滴水。
Thank You.