九年级英语下册(人教版)教学课件：Unit 13 We’re trying to save the earth Section A(第1课时).ppt

Unit13 We’re trying to save the earth!;1. We should put up notice to stop from ______ （乱扔）. 2. The teacher asked us to find a way to pick up the coins at the _______（底部）of the bottle. 3. There are no more fish for __________ （渔夫）to catch in the river. 4. We should take the paper bags to go shopping instead of the ______（塑料）ones. 5. Could you please tell us another __________（优点） of riding bike to work?;noise pollution;1b. Listen and complete the sentences;; 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 every day. 4. People are also litter in _______ like parks. This is turning beautiful places into ugly places.;;;; 1.We are trying to save the earth.我们正在努力拯救地球。 【解析】try doing sth 尝试做某事（不一定付出很大努力） try to do sth 尽力做某事（强调付出一定的努力设 法完成） 想一想? 尽某人最大的努力做某事 try_______________ 2. But it used to be so clean. 但它过去是如此干净。 【解析】used to 的意思是 ___________, 其中to是不定式符号，不是 介词，所以其后要接____________。 be used to 的意思是__________，其中to是介词，其后要接 __________ ; — How much is the ticket to Central Park? — A one-way ticket ______ $40, and you can ______ another $20 for a round-trip. A. costs, pay B. cost, spend C. pay, spend D. spends, pay ;4.To cut down air pollution, we should take the bus or subway instead of driving. 为了减少空气污染，我们应当乘坐公汽或地铁而不是开车。 本句中To cut down air pollution是动词不定式作目的状语。cut down 意为___________ ;I. 单项选择。 1. Eating too much sugar can ________ healthy problems. A. get to B. lead to C. point to D. able to 2. -----What are the _________ of bike riding? ----- It’s good for our health. A. advantages B. reasons C. results D. ideas II. 用所给词的适当形式填空。 1.