Unit 13 We’re trying to save the earth!（5课时课件）

课件40张PPT。Unit 13 We're trying to save the earth!Section A Period Onelitter bottom fisherman coal ugly advantage cost wooden plastic takeaway binv. 乱扔 n. 垃圾；废弃物 n. 底部；最下部 n. 渔民；钓鱼的人 n. 煤；煤块 adj. 丑陋的；难看的 n. 优点；有利条件 v. 花费 adj. 木制的；木头的 n. 塑料；塑胶 n. 外卖食物 n. 垃圾桶Words ReviewObjectivesTo talk about pollution and environmental protection To listen for specific information To learn to use the sentence patterns used to...but now should do sth.Look and sayAbout 2% of fast-food packaging ends up as _____.litterLook at the pictures and fill in the blanks.Look and sayDirty clothes _____ the floor of her bedroom.litteredLook and sayI'm going to get some _____. Do you want some?takeawayLook and say"How much does this book ____?" "It costs ￡25."costWhy should we protect the environment?It's everyone’s duty to protect the environment. And it should begin from every aspect of our daily life. Only by changing the way we treat the environment can we get along well with it. Only by saving the environment can we save ourselves. Endangered animals DesertificationNatural disastersThe world's problemsPollutionPollutionWhat kind of pollution are they?noise pollutionwater pollutionair pollution1aHere are some words related to different kinds of pollution. Write them in the box below. Then add more words. (P97)loud music cars rubbish planes littering ships factories smoking building houses mobile phones Noise pollution:loud music, planes, building houses, mobile phones (machines, crowds, vehicles)Air pollution:cars, factories, smoking, building houses (burning, power plants, nuclear disposal)Water pollution:rubbish, littering, ships, factories (sewage, industrial waste, pesticides)What does this picture talk about?Water pollution has become a serious problem. Let’s enjoy a video.What was the problem? The river was _____. Even the bottom of the river was full of _____. There were no more _____ for fishermen to catch. What caused the problem? People are throwing _____ into the river. Factories are putting _____ into the river. How should the problem be solved? We should write to the _____ and ask them to _____ the factories. Everyone should help to _____ the river.1bListen and complete the sentences.(P97)really dirtyrubbishfishlitterwastegovernmentclose downclean up听力原文1cRole-play the conversation. Then make your own conversations about the kinds of pollution in 1a.used to do sth. “过去常常……” 表示过去习惯性的动作但如今已不存在。play a part in doing sth. “参与做某事; 在做某事上起作用”。The air was polluted. The heavy smoke flew into the air.But, it used to be clean and clear.Yes, but factories produced lots of waste gas every day. Everyone in the town should play a part in cleaning it up. Jenny used to play the piano. 用used to句型说出与图片情景相符的句子。Jenny Mike used to wear glasses. Mike, glasses Peter used to play soccer. Peter, soccer Amy, long hairAmy used to have long hair. Mark used to like s ... ...