Reading,Unit 3,The environment,concern atmosphere temperature consumer guess green lifeless fuel,n. 担心；忧虑 n. 大气层 n. 温度；气温 n. 消费者 v. 猜测 adj. 环境保护的；赞成环境保护的 adj.无生命的；无生物成长的 n. 燃料,Word Review,coal result increase sea level destroy nature surface soil flood habit,n. 煤 n. 结果 v. (使)增长；增多；增加 n. 海平面 v. 摧毁；毁灭 n. 自然界；大自然 n. 表面；表层 n. 土壤 n. 洪水；水灾 n. 习惯,Word Review,proper friendly recycle purpose greenhouse effect in danger as a result of result in mountains of take action make a difference,adj. 正确的；恰当的 adj. 无害的 v. 回收利用 n. 目的；用途 温室效应 在危险中 由于 造成；导致 许多；大量 采取行动 有作用；有影响,Word Review,What have we done to the earth and the world?,Read to learn about the main problems we face in protecting the environment. To learn the new words and useful expressions,Objectives：,Focus on,Words: concern atmosphere temperature guess green lifeless fuel coal result increase sea level destroy nature surface soil flood habit proper friendly recycle purpose,Phrases: greenhouse effect in danger as a result of result in mountains of take action make a difference,Patterns: Without it, the Earth would be the same as the Mooncold and lifeless. 2. Cutting down trees also destroys the homes of the animals that live in our forests, and causes the surface of the soil to be easily destroyed by rain. 3. This can result in floods and even more damage to the environment. 4. We should be different from many consumers and become “green consumers”. 5. This means that we should only buy and use products friendly to the environment.,What has Lo done? What did Hi tell Lo to do? Does Lo understand what Hi meant? What did Hi mean when he told Lo to be greener?,He has painted himself green.,He told Lo to be greener.,No, he doesnt.,Getting ready,Look at the cartoon and answer:,He meant that Lo should care more about the environment.,Look at the following pictures and think about what causes the problems.,How much do you know about the greenhouse effect?,The greenhouse effect is the process of the gradual (逐渐的) rise in temperature of the Earths atmosphere. The Earth is getting warmer as an increase of gases such as carbon dioxide in the atmosphere trap the heat of the Sun.,The greenhouse effect 温室效应,A What do you know about .?,What do you know about the greenhouse effect? Match the first half of the sentences in column A with the second half in column B. Write the correct letters in the blanks. (P 34),e,f,b,d,c,a,Can you guess the result of the greenhouse effect?,What is the result of the greenhouse effect? In groups, discuss this with your classmates. (P 34),A2,The greenhouse effect results in: polar ice melting and the rise of sea levels hurricanes (飓风) and other storms are likely to happen more frequently as well as floods and droughts (旱灾) fresh water will be less available some diseases spread faster,Plant flowers, grass or trees. Whenever you visit a park or beach, take away what you bring therekeep rubbish in a bag until you can put it in a dustbin. Turn off the lights, TV sets when you leave the room. This saves a lot of electricity (电). Turn off the tap (水龙头) when you brush your teeth. You can save some water by not letting it run. Also, use a glass cup instead of a paper cup because this saves paper. Keep the doors and windows closed in winter to keep warm air in.,What can we do to protect the earth?,Give your old books and magazines to a library instead of throwing them away. Give your old clothes to poor children you know instead of throwing them away. . Use both sides of paper. Stop pouring dirty water into the rivers or lakes nearby. Encourage all your friends to do the same things you do to help protect the earth. You dont have to wait until Earth Day to do these things. Make every day Earth Day.,What is the article mainly about? What problems does the article discuss? A consumer is someone who buys and uses things. Can you guess what a “green consumer” is?,Environmental problems.,The greenhouse effect, cutting down forests and bad habits.,A “green consumer” is someone who only buys and uses things friendly to the environment.,B Before you read,Look at the pictures, the title, the introduction and the sub-headings of the article on page 35. Then answer the questions below. (P 34),Look at the article on page 35 and choose the best answer.,The article is probably from a(n) _. a advertisement b poster about the Earth Hour c environmental science book d comic book,c,Why must people do something to protect the environment? What are the main problems people face? What should people do to protect the environment?,Now listen to the passage and answer the questions.,Because our world is in danger.,The greenhouse effect, cutting down forests and bad habits.,People should become “green consumers”.,Task 1: Read the first part and make the following sentences into correct order.,( )Too much CO2 pollutes the atmosphere. ( )The atmosphere does not let the heat out. ( )The atmo