1、Unit 13 Were trying to save the earth!知识导航语言目标谈论污染和环境保护。Section A重点单词1. litter v. 乱扔 n. 垃圾 2. bottom n. 底部 3. coal n. 煤 4. ugly adj. 丑陋的 5. cost v.花费 n. 花费 6. wooden adj. 木制的 (wood n. 木材) 7. plastic adj. 塑料的n. 塑料 8. method n. 方法 9. cruel adj. 残酷的 10. harmful adj. 有害的 (harm n. 害处) 11. industry n. 工业
2、12. law n. 法律 13. afford v. 承担得起重点短语1.make a difference 起作用；有影响 2. take part in 参加 3. turn off 关掉 4. pay for 付费；付出代价 5. cut down 减少 6. lead to 导致 7. hear of 听说 8. cut off 切除 重点句型1.Were trying to save the earth. 我们在努力拯救地球。2. The rive used to be so clean. 这河流过去是如此的清澈。3. The air is badly polluted. 空气被严
3、重污染。4. The method is not only cruel, but also harmful to the environment. 这种方法不仅残酷，而且对环境也有害。 Section B +Self Check 重点单词1. recycle v. 回收利用 2. gate n. 大门 3. bottle n. 瓶子 4. president n. 负责人 5. work n. 作品 6. metal n. 金属重点短语1. throw away 扔掉 2. put sth. to good use 好好利用 3. put down 拆下 4. upside down 上下颠倒
4、 5. bring back 恢复重点句型1. And the gate in front of her house is made of rocks and old glass bottles. 她房子的前门是由岩石和旧玻璃瓶子制成的。2. Not only can the art bring happiness to others, but it also shows that even cold, hard iron can be brought back to life with a little creativity. 不仅艺术品能给人们带来快乐，而且冰冷坚硬的钢铁在艺术创作下也恢复
5、了生命。核心语法1. 复习现在进行时、used to句型、被动语态、现在完成时和情态动词。Section A (1a-2d)【基础预习】I. 写出下面单词的意思。1. littler _2. bottom _3. fisherman _3. coal _5. ugly _6. advantage _7. cost _8. wooden _9. plastic _II. 把下面的短语与汉语意思搭配。1. make a difference A. 参与2. cut down B. 充满3. lead to C. 减少4. be full of D. 起作用5. play a part in E.
6、导致【重点讲练】1. The air has become really polluted around here. 这儿的空气已经被污染了。辨析：turn, get 与become become多指身份、职位等的变化，它强调变化的过程已经完成，后面可接名词或形容词。He becomes a teacher. 他成了一名老师。 get多用于口语，表示一种变化过程，强调的是“渐渐变得”，后常接形容词的比较级形式。In winter the days get shorter. 冬季白天变得较短。 turn指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
7、in the mountains. 山里的树叶已变成了棕色。【小试牛刀】用turn, get 和become填空。 Her mother _ angry when she heard the news. Its _ darker and darker outside. The milk has _ bad.2. To cut down air pollution, we should take the bus or subway instead of driving. 为了减少空气污染，我们应该乘坐公共汽车或者地铁，而不是开车。cut down 意为“减少”；是“动词+副词”结构的短语，所带的
8、宾语为名词时，宾语可位于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 2,000 words. 你最好能把这篇文章压到两千字左右。【拓展】cut down 还可表示“砍倒”的意思。They cut down the big tree. 他们砍倒了这棵大树。cut off 切断；切除cut into 把切成cut up 切碎cut in 插队【小试牛刀】单项选择Did you tell it to Jack? Yes, but we were _ in the middle of our telephon
9、e conversation. A. cut downB. cut offC. cut upD. cut into 3. Its good for health and it doesnt cost anything! 它对身体有好处并且不会花费任何东西。辨析：spend, cost, take, pay 花费主语表示的内容spend人宾语可以是钱、精力、时间等。cost物或事后接life, money, health, time等，侧重于“花费”的代价。take事或人它说明事情完成“花费了”。pay 人意思是“支付”，作为及物动词，宾语可以是“人”、“钱”pay for人宾语为“物”、“事”
10、，for表示支付的原因【小试牛刀】单项选择1. Do you take exercise every day?Yes. I always _thirty minutes after supper. A. spend B. cost C. take D. pay2. I _ $300 for the bike.A. tookB. spent C. cost D. paid【达标训练】. 用方框中所给词的适当形式填空。cost, wood, coal, bottom, litter1. Dont throw _ (垃圾) everywhere. 2. In winter, many people
11、burn _ (煤) to keep warm. 3. The police found a body at the _ (底部) of the lake. 4. The _ (费用) of living in big cities is very high. 5. He keeps a rabbit in a big _ (木制的) box. II. 单项选择。1. He _ go out with his parents, but now he _ staying at home alone. A. used to; is used toB. is used to; used toC. u
12、se to; is used toD. is used to; is used to2. The interesting book _ me 10 yuan. A. spentB. tookC. paid D. cost 3. We must do something useful to _ pollution. A. cut offB. cut upC. cut downD. cut in 4. Smoking can _ lung cancer. Youd better give it up. A. work onB. lead to C. take awayD. put out 5. W
13、hat are the _ of bike riding? It can help cut down air pollution. A. advantages B. reasons C. resultsD. ideas III. 根据汉语提示完成下面的句子。1. 多一个人少一个人无所谓。 One person wouldnt _ _ _. 2. 这个木箱时装满了书。 The _ box _ _ _ books. 3. 不健康的饮食对这种疾病的传播起一定的作用。 Unhealthy foods _ _ _ _ the spread of the disease. 4. 这条小路通向公园。 The
14、 path _ _ the park. 5. 我错拿了你的包。 I took your bag _ _ mine by mistake. Section A (1a-2d)【基础预习】I. 1.垃圾 2. 底部 3. 渔民 4. 煤 5. 丑陋的 6. 优点 7. 花费 8. 木制的 9. 塑料 II. 15 DCEBA 【重点讲练】1. became getting turned2. B 3. AD【达标训练】. 1. litter 2. coal 3. bottom 4. cost 5. wooden . 1.A used to do sth. 意为“过去常常做某事”；be / get u
15、sed to doing sth. 意为“习惯于做某事”；句意：他过去经常和父母外出，但是他现在习惯于独自呆在家里。2. D 表示“某物花费某人多少钱”应当用cost。 3. C cut down意为“减少”；句意：我们必须做一切有用的事情来减少污染。4. B lead to 意为“导致；引起”；句意：吸烟能引起肺癌。5. A advantage 意为“优点”；句意：骑自行车的好处是什么？它能帮助减少空气污染。III. 1. make a difference 2. wooden is full of 3. played a part of 4. leads to 5. instead of
