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Unit13WearetryingtosavetheearthWord文档下载推荐.docx

1、使空气中充满了黑烟 7. cut down air pollution减少空气污染 8. make a difference产生影响 重点句式1. Everyone in town should play a part in cleaning it up.城里的每个人都应当尽一份力把它清理干净。 2. The air is badly polluted because there are too many cars on the road these days.空气被严重污染因为如今路上的汽车太多了。3. To cut down air pollution, we should take th

2、e 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。4. I used to be able to see stars in the sky.我过去能在天空中看到星星。5. The air has become really polluted around here. Im getting very worried.这儿的空气真的已经被污染了,我非常担心。II. 课堂环节自主学习方案【自学自查】根据汉语提示完成单词。1. We should put up notice to stop from littering (乱扔)。

3、2. The teacher asked us to find a way to pickup the coins at the bottom (底部)of the bottle.3. There are no more fish for fishermen (渔夫)to catch in the river.4. We should take the paper bags to go shopping instead of the plastic (塑料)ones.5. Could you please tell us another advantage(优点)of riding bike

4、to work?课堂导学方案Step 1 情景导入(参考案例)用多媒体给学生播放一些有关环境污染的图片或视频,然后询问学生对环境污染的看法和观点。Teacher: What kinds of pollutions do you know? What do you feel about the pollution?Students: I think there are_.1 noise pollution air pollutionwater pollution环节说明:通过视频和课前的一个师生问答互动引入新课的话题Step 2 完成教材1a-1c的任务【操作案例】1. 要求学生翻开课本P97,

5、迅速阅读1a部分的内容。把方框中的单词按它们产生污染的类型写入相应的栏目中,并添加更多的单词。(1分钟)2. 检查答案,先要求全班一起给出答案并检查讨论。然后要求2-3名同学给出自己的答案,并把收集的答案列举在黑板上。(3分钟)3. 要求学生听第一遍录音,并根据听到的内容完成课本上1b表格中的句子。然后要求2-3名同学读出序号-读出所填单词-读出完整的句子(2分钟) 1. polluted, rubbish, fish 2. litter, rubbish 3. newspaper, stop, clean4. 要求学生听第二遍录音,并逐句进行跟读。(2分钟)5. 完成教材1c的任务,要求学生

6、模仿1a内容,编造自己的关于污染的对话并进行对话练习。并邀请2-3对同学当堂进行演示。6. 小结训练。要求学生在规定的时间内完成一个小练习。并请若干学生给出自己的答案。有错误的话及时解决纠正。用所给词的适当形式填空。1. There are many kinds of pollutions(pollute)in our daily life.2. All of the students should take part in keeping (keep) our school clean and tidy.3. Can you tell us your ideas for improving

7、(improve) your spoken English.4. W e should stop using the wooden (wood) chopsticks to protect the forest.5. Their grandparents were fishermen (fisherman) near the sea before they moved to the town. 通过学习1a,使学生对过去完成时态有所了解,并拓宽了思路;通过1b,锻炼学生的听力及抓取关键信息的能力;通过1c的训练锻炼学生的口头表达能力,同时巩固对本课内容的认识。Step 3 完成教材2a-2c的

8、任务1. 要求学生翻开课本P98。播放录音一遍,完成2a,2b的听力任务,然后个别检查,统一核对答案。2. 要求学生听第二遍录音,并逐句进行跟读。3. 听力内容巩固训练。要求学生根据所听到的内容完成下列各句。完成后要求若干学生给出自己的答案。以巩固对听力内容的了解。(4分钟)1) The air is badly polluted because there are too much cars on the road these days.2) Factories that burn coal also filled the air with a lot of black smoke.3) T

9、here is also too much rubbish and waste. People litter things every day.4) People are also littering in public like parks, this is turning beautiful places into ugly ones.4. 大声朗读听力材料。5. 放下听力材料,要求学生模仿听力内容,利用2a,2b的信息分角色练习Jason与 Susan的对话。然后邀请2-3对同学当堂演示。看哪一对的表现最佳。(5分钟)6. 播放2d的对话录音,让学生跟读,模仿并理解大意。然后让学生分角色

10、朗读并表演2d的对话。将听、说、读、写的任务结合起来不仅锻炼了学生的语言综合运用能力,还巩固了学生对目标语言的学习、识记和运用;同时,小组合作对话训练了同学们的合作意识和团队精神;对话的当堂演示使同学们有了学英语的成就感,张扬了个性。当堂评价方案(详见当堂训练部分)备课资料包a. 词汇包:cost vt.1. 花费;价格为;值:例句: It must cost a good deal to live here.住在这里一定要花很多钱的拓展:take, spend ,cost ,pay的用法都可以表示“花费”,但用法却不尽相同。1. spend的主语必须是人, 常用于以下结构:(1) spend

11、 time money on sth. 在上花费时间(金钱)。例:I spent two hours on this maths problem. 这道数学题花了我两个小时。(2) spend time money (in) doing sth. 花费时间(金钱)做某事。They spent two years (in) building this bridge. 造这座桥花了他们两年时间。(3)spend money for sth. 花钱买。His money was spent for books. 他的钱用来买书了。2. cost的主语是物或某种活动, 还可以表示“值”, 常见用法如下

12、:(1)sth. costs (sb.) 金钱,某物花了(某人)多少钱。A new computer costs a lot of money. 买一台新电脑要花一大笔钱。(2) (doing) sth. costs (sb.) 时间,某物(做某事)花了(某人)多少时间。Remembering these new words cost him a lot of time. 他花了大量时间才记住了这些单词。注意:cost的过去式及过去分词都是cost,并且不能用于被动句。3. take后面常跟双宾语, 常见用法有以下几种:(1) It takes sb. 时间to do sth. 做某事花了某人

13、多少时间。It took them three years to build this road. 他们用了三年时间修完了这条路。(2)doing sth. takes sb. 时间,做某事花了某人多少时间。Repairing this car took him the whole afternoon. 他花了一下午修车。4. pay的基本用法是:(1) pay (sb.) money for sth. 付钱(给某人)买。I have to pay them 20 pounds for this room each month. 我每个月要付20英磅的房租。(2)pay for sth. 付的

14、钱。I have to pay for the book lost. 我不得不赔丢失的书款。(3)pay for sb. 替某人付钱。Don?蒺t worry!Ill pay for you. 别担心, 我会给你付钱的。(4)pay sb. 付钱给某人。 例: They pay us every month.他们每月给我们报酬。(5)pay money back 还钱。May I borrow 12 yuan from you? Ill pay it back next week. 你能借给我12块钱吗?下周还你。(6)pay off ones money还清钱。【课堂变式】 How much

15、 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【解析】考查动词辨析。cost“花费”物作主语,spend“花费”人作主语,pay for付款, 人作主语,所以选择答案A。b. 句式包:To cut down air pollution, we should take the bus or subway instead of drivi

16、ng.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。动词不定式做目的状语时的用法一、不定式和不定式短语作目的状语 不定式和不定式短语作目的状语,主要用来修饰动词,表示某一动作或状态的目的。为了使目的意义更加清楚或表示强调意义时,还可以在前面加 in order to 或 so as to。例如:Ive written it down in order not to forget. He shouted and waved so as to be noticed. 在句子中作谓语动词的状语的不定式或不定式短语,

17、表示的是主语的目的,因此,其逻辑主语通常是句子的主语。比较:To draw maps properly, you need a special pen.(正) To draw maps properly, a special pen is needed.(误) 由 in order to 引导的目的状语,既可以置于句尾,也可以置于句首,而由 so as to 引导的目的状语,只能置于句尾,而不能置于句首。They started early in order to get there in time.(正) In order to get there in time, they started

18、 early.(正) They started early so as to get there in time.(正) So as to get there in time, they started early.(误) 二、不定式的复合结构作目的状语 当不定式或不定式短语有自己的执行者时,要用不定式的复合结构(即在不定式或不定式短语之前加 for + 名词或宾格代词)作状语。He opened the door for the children to come in. She fetched several bottles which she placed on the counter f

19、or Harry to inspect. 三、目的状语从句与不定式的转换 英语中的目的状语从句,还可以变为不定式或不定式短语作状语,从而使句子在结构上得以简化。可分为两种情况:1. 当目的状语从句中的主语与主句中的主语相同时,可以直接简化为不定式或不定式短语作状语。Well start early in order that/so that we may arrive in time. Well start early in order to/so as to arrive in time. 2. 当目的状语从句中的主语与主句中的主语不相同时,要用动词不定式的复合结构作状语。I came ea

20、rly in order that you might read my report before the meeting. I came early (in order) for you to read my report before the meeting.1 Why is Linlin practicing speaking English? _ abroad for further study. A. Go B. Gone C. To go D. Goes 【解析】考查非谓语动词。动词不定式表目的。故选C。2. Im new here. Dont worry. Ill do what

21、 I can _ you. A. help B. to help C. invite D. to invite 【解析】考查动词的辨析和非谓语动词的用法。由交际情景可知此处表示“我将尽我能做的来帮助你。”help的意思是“帮助”,invite的意思是“邀请”,此处使用动词不定式表示目的。故选B。教学反思第二课时 Section A(3a 3c)1. shark n. 鲨鱼;2. fin n. 鱼 鳍3. method n. 方法;4. cruel adj. 残酷的;5. harmful adj. 有害的;6. chain n. 链条;7. ecosystem n. 生态系统;8. indust

22、ry n. 工业;9. law n. 法律;1. shark fin soup鱼鳍汤2. at the top of the food chain处于食物链的顶端3. in the last 20 to 30 years在最近的20到30年间4. environmental protection groups around the world 全球环境保护组织5. develop laws 建全法律6. the sale of shark fins 鱼鳍买卖1. But do you realize that youre killing a whole shark each time you

23、enjoy a bowl of shark fin soup.你意识到了吗,当你每次在品尝一碗鱼鳍汤时,你正在杀死一整头鲨鱼。2. This method is not only cruel, but also harmful to the environment.这种方法不仅残酷,而且对环境有害。3. The numbers of some kinds of sharks have fallen by over 90 percent in the last 20 to 30 years. 在最近的20年到30年的时间里,这种鲨鱼已经下降了90%。4. So far, no scientifi

24、c studies have shown that shark fins are good for health. 到目前为止,还没有科学研究证明鱼鳍对人们的健康有好处。5. Sharks may disappear one day if we do not something to stop the sale of shark fins.如果我们不采取措施来阻止这种鱼鳍买卖,鲨鱼可能有一天会消失。I. 知识目标【新词自查】1. Carl is planning to travel by ship because he wants to see the sharks (沙鱼)in the se

25、a.2. You should teach them the method(方法)of how to grow apples instead of giving them apples.3. Its harmful(有害的)to throw the old battery in the water.4. Many countries have made laws(法律)to keep the animals.5. If the animals are endangered , it may broke the ecosystem(生态系统)of the world.Step 1情景导入(参考案

26、例)用多媒体播放一段鲨鱼的视频,以及姚明的“没有买卖就没有杀戮”的公益广告。然后询问学生Do you like animals?How do you help protect the endangered animals?通过上述图片或影片的介绍,使学生对这两个短文有了一定的了解,从而达到导入新课的目的。引起学习短文的兴趣。Step 2完成教材3a 的任务1. 要求学生快速默读短文,熟知大意,并完成课本3a的任务。然后邀请几位同学给出自己的答案,全班一起检查讨论。 1. In southern China.2. Around 70 million sharks3. Over 90 percen

27、t4. They are WildAid and the WWF.2. 先邀请几位同学朗读短文,教师要注意语音,及时纠正。然后播放录音,全班同学一起跟读。3. 短文内容巩固练习。让学生用自己的话复述根短文内容。4. 完成教材3b的任务,要求学生再次阅读短文,用3b的方框中所给单词完成句子。 (5分钟) 1. when 2.so 3. but 4.Although 5.if将听、说、读、写的任务结合起来不仅锻炼了学生的语言综合运用能力,还巩固了学生对目标语言的学习、识记和运用。a. 句式包:1. This method is not only cruel, but also harmful to

28、 the environment.这种方法不仅残酷,而且对环境有害。not onlybut also意为“不仅而且”用于连接两个表示并列关系的成分,着重强调后者,其中的also有时可以省略。如:She not only plays well, but also writes music. 她不仅很会演奏,而且还会作曲。He not only writes his own plays, he also acts in them. 他不仅是自编剧本, 还饰演其中的角色。Not only men but also women were chosen. 不仅仅是男的,女的也有被选中的。He works not only on weekdays but on Sundays as well. 他不仅平时工作,星期日也工作。Not only the students but also their teacher is enjoying the film. 不仅学生们在欣赏这部影片,他们的老师也在欣赏这部影片。说明:若连接两个成分作主语,其谓语通常与靠近的主语保持一致。Not only you but also he has to leave. 不只是你,他也得离开。若连接两个句子,not only后面的句子要用倒装,如:Not only did he speak more

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