人教新目标九年级英语Unit13单元SectionA第一课时.ppt

Factories produce too much dangerous smoke. The traffic produces too many fumes(烟雾）. Some people smoke in public places. Help save the earth In winter the days get shorter. 冬天白天渐渐变短。 (3) turn 指的是在颜色和性质等方面与以前的完全不同，强调变化的结果。 leaves turned brown in the mountains. 山里的树叶已经变成了棕色。 ： Her mother ______ angry when she heard the news. Its _____ darker and darker outside. The milk has ______bad. cut down, 意为减少； 是“动词+副词”结构的短语，后面所带的宾语为名词时，宾语可以位于down的前面或后面；为代词时只能位于down前面。 Youd better cut the article down to about 2000 words. cut 后接off, into,up, in 的不同： 1. Do you take exercise everyday? Yes, I always ___ thirty minutes after supper. A spend B cost C take D pay 2. I ____ 300 yuan for the bike. A took B spend C cost D paid Listen and complete the sentences. 1b what was the problem? The river was _________. even the bottom of the river was full of ________. there were no more _____ for fishmen to catch. really dirty rubbish fish 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. litter waste government close down clean up Mark: The river was dirty. Even the bottom of the river was full of rubbish. Tony: But it used to be so clean! Mark: Yes, but people are littering in the river. Tony: Everyone in this town should play a part in cleaning it up! Role-play the conversation. Then make your own conversations about the kinds of pollution in 1a. 1c 2a Listen to the interview. Circle the kinds of pollution that Jason and Susan talk about. A. land pollution B. air pollution C. noise pollution D. water pollution 1. The air is badly polluted because there are ________on the road these days. 2. Factories that burn coal also