1、免费下载网址 Unit 13 Were trying to save the earth 【学习目标】(一) 知识与技能 1. To learn the following words and expressions.bottom, coal, public, ugly, cost, advantage, method, cruel, harmful, afford.2. To understand the pasage on Page 99.(二) 过程和方法 3.To get a general knowledge of pollution by reading and role-play
2、. 4. To know about how to reduce pollution through discussion. (三) 情感态度和价值观 5. After learning this part, every student will be aware of the serious situation of pullution and determined to take action to protect our earth fron now on.【自主梳理】1. Turn to Page 97 and finish 1a . 2. Turn to page 99 , read
3、 the passage and finish exercises on Page 99. 3. Check answers.【重点领悟】Studying useful words and expressions. cost v价钱为，花费 n.价钱，代价；花费，费用 The cost of a loaf of bread has increased five-fold. 一条面包的价钱增长了4倍。Badges are also available at a cost of 2.50. 徽章也有卖的，2.5英镑一枚。Its going to cost me over $100,000 to b
4、uy new trucks.买几辆新卡车将花掉我10万多美元。 harmful adj.对有害的；能造成损害的；不利；不良Smoking is harmful to our health.吸烟对人类的健康有害。 used to do过去一向，过去时常，过去曾（而现在不再）做Who used to do your laundry? 谁过去一直为你洗衣服？She used to wash dishes in a restaurant.她曾经在餐馆里洗过盘子。 afford vt.买得起；担负得起；提供；给予We couldnt afford to buy a new car. 我们买不起新的车。W
5、e cant afford to wait. 我们等不起。My parents cant even afford a new refrigerator.我父母甚至买不起一台新冰箱。 play a part in扮演某角色; 与有关，对有影响Id like to play a part in their discussion. 我愿意参与他们的讨论。Education is playing a big part in environmental protection.教育在环境保护中起着很大作用。He played a part in his favorite TV show.他在他最喜欢的电视
6、节目中扮演了一个角色。【探究提升】 cost 表花费时， 主语为_. 这块表花了我一千元。_.以价格 _ harmful 是_词。对有害_ used to 表示过去常常，后接_. afford 买得起_; _承受得起做某事 _ 在电影中扮演一个角色_起着重要作用_Answers: 【探究提升】 物， The watch cost me 1000 yuan. at a cost of 形容， be harmful to 动词原形 afford sth, afford to buy, afford to do play a part in a film, play an important part 解压密码联系qq 1119139686 加微信公众号jiaoxuewuyou 九折优惠！淘宝网址：
