1、1 UnitUnit 1313WereWere tryingtrying toto savesave thethe earth!earth! 第第二二课时课时SectionSection A(A(2 2a a2d)2d) Target Navigation【目标导航】 Key words and phrases： coal，ugly，advantage，cost，wooden，plastic，make a difference Key sentences： (1) To cut down air pollution, we should take the bus or subway inste
2、ad of driving. (2) I never take wooden chopsticks or plastic forks when I buy takeway food. (3) Our actions can make a difference and lead to a better future. Skills：能听懂关于污染的问题和环境保护的话题；并初步学会用重点句型谈论污 染和环保的话题。 Emotion：通过听说训练学会谈论污染和环保的话题，使学生认识到污染的严重 性，从而培养学生养成爱护环境，保护环境的习惯。 The guidance of learning meth
3、ods【学法指导】 听说法；小组合作。 Learning important and difficult points【学习重难点】 1 能听懂关于污染的问题和环境保护的话题； 并初步学会用重点句型谈论污 染和环保的话题。 2掌握并运用 Key sentences 中的重点句型。 Teaching Steps【教学过程】 Autonomous Learning Scheme 【自主学习方案】 预习指导与检测 (一)预习指导 1预习 Page98 的生词和短语，根据音标会读记。 2朗读 Page 98 的句子，能英汉互译。 (二)预习检测 .翻译下列单词、短语和句子。 1噪音污染_ 2空气污染_
4、 3水污染_ 4cut down air pollution_ 5takeaway food_ 6骑自行车的其他优点_ 7Everyone in this town should play a part in cleaning it up! _ _ (Keys：1.noise pollution；2.air pollution；3.water pollution； 4.减少空气污染； 5.外卖食品；6.other advantages of bike riding；7.在这个镇上每个人都应该参与清 扫。) Classroom Learning Guidance Scheme【课堂导学案】 【探
5、究一】 check the new words coal ugly advantage cost wooden plastic takeaway bin 2 【探究二】Help save the earth： We must think of better ways to treat our planet in the future. What do you usually do ? Are you a friend of the Earth? Take this quiz. . 【探究三】 听这段采访， 圈出杰森和苏珊所谈论的污染的种类。 完成 2a 部分。 【探究四】再听，完成 2b 的句
6、子。 【探究五】同桌合作用 2a 和 2b 的信息分角色扮演杰森和苏珊的对话。 Jason：The air has become really polluted around here. Im getting very worried. Susan：Yes，I used to be able to see stars in the sky. Jason：The problem is that 【探究六】What should we do to save the earth? 【探究七】小组合作完成 2d。 1 Read 2d and complete the chart. 2Listen an
7、d repeat. 3师生、生生分角色扮演对话。 【知识点拨】 1Its 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 与 pay 1) take 多表示花费时间，常用于 It takes sb. some time to do sth.这一 句型中，其中 it 作形式主语。 e.g. It usually takes me 40 minutes to cook the dinner. 2) Spendsb. spend some time / money on sth.s
8、b. spend some time / money (in) doing sth.两种句型。 e.g. David spent 2,000yuanon the newmachine. My father spends an hour (in) watching the news on TV every day. 3) pay 多表示花费金钱，主语通常是人，sb. pay some money for sth.句 型。 e.g. Tommy paid 20yuanfor his breakfast yesterday. 4) cost 多表示花费金钱，主语通常是物，sth. cost (sb.
9、) some money.句 型。 e.g. The new dress cost Linda 88yuan. 【小试牛刀】 根据句意用 take, spend, pay 或 cost 的适当 形式填空。 1. That new car _ them lots of money. 2. Mona _ 50yuanon the books just now. 3. It usually _me an hour to do my homework. 4. You should _some time practicing your pronunciation. 5. My brother _ 6,
10、000yuanfor the new computer yesterday. 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，所带的宾语为名词时， 3 宾语可位于 down 的前面或后面；为代词时，只能位于 down 前面。如： Youd better cut the article down to about 2，000 words.你最好能把这篇文章压 缩到
11、两千字左右。 【拓展】 cut down 还可表示“砍倒”的意思。如： 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 telephone conversation. Acut downBcut off Ccut upDcut into 【当堂检测】 一.用适当的英文单词填空。 1. Dont throw _(垃圾
12、) everywhere. 2. In winter, many people burn _(煤) to keep warm. 3. The police found a body at the _(底部) of the lake. 4. The _(花费) of living in big cities is very high. 5. He keeps a rabbit in a big _(木制的) box. 二.用动词的适当形式填空。 1. Were trying _ (save) the earth. 2. There used to _ (be) clean and beautif
13、ul. 3. There are too many _ for _ to catch (fish). 4. Its bad for environment to use _ (wood) chopsticks. 三 . Choose the best answer. 1. He _ go out with his parents, but now he _ staying at home alone. A. used to; is used toB. is used to; used to C. use to; used toD. is used to; is used to 2. The i
14、nteresting book _ me 10yuan. A. tookB. paid C. spendD. cost 3. We must do something useful to _ pollution. A. cut offB. cut up C. cut downD. cut in 4. Smoking can _ lung cancer. Youd better give it up. Awork onBlead toCtake awayDput out 5. -What are the _ of bike riding? - It can help cut down air p
15、ollution. 4 AadvantagesBreasonsCresultsD. ideas 四. 翻译 1. 多一个人少一个人无所谓。 One person wouldnt _ _ _. 2. 这个木箱子装满了书。 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 diet_ _ _ the spreadof the disease. 4. 这条小路通向公园。 The path _ the park. 5. 我错拿了你的包。 I took your bag _ _ mine by mistake. HomeworkHomework
16、 1 The earth is badly polluted. Please make a poster and think of what we can do. 2 Review the new words and expressions. 3 Practice the conversation in 2d. Teaching Reflection【教学反思】 这是第 13 单元的第二课时， 本课时主要通过听说活动让学生初步听懂谈话中 涉及的关于污染的问题和环境保护的内容；用重点句型询问并谈论污染和环保的 话题。 本课时的学习目标主要让学生准确记住单词和短语：coal， ugly， adva
17、ntage， cost，wooden，plastic，make a difference 学会运用谈论污染和环保的句型： (1) To cut down air pollution, we should take the bus or subway instead of driving. (2) I never take wooden chopsticks or plastic forks when I buy takeway food. (3) Our actions can make a difference and lead to a better future. 在这节课里，我通过让学生进行小组合作，分组竞赛的方式完成教学任务， 课堂气氛热烈，收到了很好的效果。 5
