Unit13（第1课时）.ppt

Section A 第一课时第一课时(1a -2d) Unit 13 Were trying to save the earth.人教版 九年级下册To talk about air pollution, water pollution and sound pollution.To think about ways of protecting the environment.serious pollutionWe are harming our planet in so many ways.伤害伤害air pollutionsoil pollutionwater pollutionFactories pour dangerous gases into the air.Cars also pour dangerous gases into the air.air pollution!The weather is always foggy. We cant see the blue sky. We cant breathe the fresh air. Do you know why? Factories produce too much dangerous smoke. The traffic produces too many fumes.fju:mz烟烟 Some people smoke in public places. noise pullotionair pollutionwater pollutioncars, factories, smoking, building houses(burning, power plants, nuclear waste disposal)Loud music, planes, building houses, mobile phones(machines,crowds, vihicles)rubbish, littering, ships, factories(sewage, industrial waste, pesticides)Listen and complete the sentences.1b1bwhat was the problem?The river was _. even the bottom of the river was full of _. there were no more _ for fishmen to catch.really dirtyrubbishfishwhat 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.litterwastegovernmentclose downclean upHelp save the earth We must think of better way to treat our planet in future.A. land pollution B. air pollution C. noise pollution D. water pollution 2a2aListen to the interview. Circle the Kinds of pollution that Jason andSusan talk about. 1. The air is badly polluted because there are _on the road these days.2. Factories that burn coal also _ the air with a lot of black smoke.3. There is also too much rubbish and waste. People _things away every day.4. People are also littering in_ like parks. Th is turns beautiful parks into ugly places.more carpolluteare throwing awaypublic places2b2b Listen again and complete the sentences. 听力巩固训练听力巩固训练1. I _ _ _ able to see stars in the sky, but now I cant see them clearly.2. The air _ _ really _ around there.3. People are also _ in public places.4. The factories that burn _ also _ the air with a lot of black smoke.used to behas become pullutedlitteringcoal polluteThe air has become really polluted around here. Im getting very worried. Yes, I used to be able to see stars in the sky.The problem is that2c2cUse the information in 2a and 2b to role-play conversations between Jason and Susan.Jason and Susan, what are your ideas for solving these problems? Well, to cut down air pollution, we should take the bus or subway instead of driving. 2d2dRole-play the conversation. Yeah, or ride a bike. There are other advantages of bike riding. Its good for health and it doesnt cost anything!Great ideas! What about waste pollution?Mmm, I think simple things like bringing a bag to go shopping can help. I started doing that a year ago. Me, too. Also, I never take wooden chopsticks or plastic forks when I buy takeaway food. I use the ones at home. And remember to throw rubbish in the bins and keep public places clean and beautiful for everyone.So together, ouractions can make a difference and lead to a better future!1. People are also littering in _ like parks. This is turning beautiful places into ugly ones. ugly 作作形容词形容词，意为，意为“难看的；丑陋的难看的；丑陋的”，指人、指人、动物或事物的外貌或道德上令人反感动物或事物的外貌或道德上令人反感。还可表示。还可表示“有有敌意的；阴险的；不祥的敌意的；阴险的；不祥的”，在句中可作，在句中可作表语表语或或定语定语，反义词反义词为为comely,beautiful。如：如：The fairy changed the ugly old woman into a frog. 仙女把那个丑陋的老女人变成了一只青蛙。仙女把那个丑陋的老女人变成了一只青蛙。Language points2. There are other advantages of bike riding. advantage作作名词名词，意为，意为“有利条件有利条件,优点优点,优势优势”， 反义词反义词为为disadvantage。如：如：He had the advantage of a good education. 他具备受过良好教育的优势。他具备受过良好教育的优势。 What is the advantage of using nuclear power? 使用核能有何好处使用核能有何好处?Language pointsadvantage还可作还可作及物动词及物动词，意为，意为“有利于；使处有利于；使处于优势于优势”。如：如：It would advantage him to go abroad. 出国会对他有好处。出国会对他有好处。 It would advantage you to work hard. 努力工作对你会有益。努力工作对你会有益。Language points3. Its good for health and it doesnt cost anything!be good for意为意为“有益于；适于有益于；适于”，后接，后接名词名词或或动词动词-ing形式形式。如：如：Whisky can be good for you if taken in moderation. 威士忌酒如饮用适度是有益的威士忌酒如饮用适度是有益的。 Do it up. Itll be good for you. 把它喝完，它对你有益。把它喝完，它对你有益。Language points用方框中所给词的适当形式填空。用方框中所给词的适当形式填空。1. Dont throw _(垃圾垃圾) everywhere.2. In winter, many people burn _(煤煤) to keep warm.3. The police found a body at the _(底部底部) of the lake.4. The _(花费花费) of living in big cities is very high.5. He keeps a rabbit in a big _(木制的木制的) box.cost wooden, coal , bottom, littercost woodencoalbottomlitter1. He _ go out with his parents, but nowhe _ stay at home alone. A. use to; is used to B. is used to; used to C.use to; used to D. is used to; is used to2. The interesting book _ me 10 yuan. A. took B. paid C. spend D. costChoose the best answer.3. We must do something useful to _ pollution. A. cut off B. cut up C. cut down D. cut in4. Smoking can _ lung cancer. youd bettter give it up. Awork on Blead to Ctake away Dput out