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1、Unit 13 We are trying to save the earth!第一课时 Section A(1a 2d)设计者:杨丽琴 班级: 姓名:【学习目标】1 熟练掌握P97-98单词:2运用现在进行时态讲述环境污染及带来的伤害。【学习重点】能正确运用现在进行时,现在完成时,被动语态,情态动词和usedto句型。【学习难点】能正确运用现在进行时,现在完成时,被动语态,情态动词和usedto句型【学法指导】Listening,Practicing,Discussing.自主学习方案根据汉语提示完成单词。1. We should put up notice to stop from (乱扔
2、)。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?课堂导学方案Step 1 情景导入(参考案例)T
3、eacher: What kinds of pollutions do you know? What do you feel about the pollution?Students: I think there are_. noise pollution air pollutionwater pollutionStep 2 完成教材1a-1c的任务1. 要求学生翻开课本P97,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。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.
4、 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 1. polluted, rubbish, fish 2. litter, rubbish 3. newspaper, stop, clean 4. 完成教材1c的任务,要求学生模仿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。Step 3 完成教材2a-2c的任务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. 放下听力材料,要求学
5、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。知识链接cost vt.1. 花费;价格为;值: 2. cost的主语是物或某种活动, 还可以表示“值”, 常见用法如下:(1)sth. costs (sb.) 金钱,某物花了(某人)多少钱。例: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。例:Remembering these new words cost him
6、 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。新课 标 第 一 网 How much is the ticket to Central Park?A one-way ticket _ $40, and you can _ another $20 for a round-trip.A. costs, payB. cost, spend 新- 课 -标 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,
7、所以选择答案A。达标检测一、用动词的适当形式填空。1) Were trying _ (save) the earth.2) There used to_ (be) clean and beautiful.3) There are too many _ for _to catch (fish).4) Its bad for environment to use _ (wood) chopsticks.二、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_ 50 yuan on the bo
8、oks just now.3) It usually _ me an hour to do my homework.4) You should _ some time pracitising your pronunciation. 5) My brother _ 6,000 yuan for the new computer yesterday.教学反思:Unit 13 We are trying to save the earth!第二课时 Section A(3a 3b)设计者:杨丽琴 班级: 姓名:【学习目标】1 熟练掌握P99词汇:2掌握so,although,if,but,when等
9、连词的用法。【学习重点】理解短文大意,并能识记和应用短文中出现的短语。【学习难点】掌握各种时态及被动语态的用法。【学法指导】Reading,Practicing自主学习方案根据汉语提示完成单词。1. Carl is planning to travel by ship because he wants to see the (沙鱼)in the sea.2. You should teach them the (方法)of how to grow apples instead of giving them apples.3. Its (有害的)to throw the old battery
10、in the water.4. Many countries have made (法律)to keep the animals.5. If the animals are endangered , it may broke the (生态系统)of the world.课堂导学方案Step 1情景导入Do you like animals? How do you help protect the endangered animals?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 so
11、uthern China. 2. Around 70 million sharks3. Over 90 percent 4. 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。 B 1 . c o m 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。 1. when 2.so 3. but 4.Although 5.if知识链接1. This method is not only cruel, but also
12、harmful to 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
13、的。X| k | B 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。如: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
14、speak more correctly, but he spoke more easily. 他不仅说得更正确,而且讲得更不费劲了。【备课例句】The plane flew above the clouds. 飞机在云层上飞行。【课堂变式】 _Lisa _Lucy may go with you because one of them must stay at home to take care of the dog. A. Not only -but also B. Neither-nor C. Both-and D. Either-or【解析】词义辨析。Not only -but also意为“不但-而且”; Neither-nor 意为“二者都不”, Both-and意为“二者都”;Either-or意为“二者其中之一”;根据句意:Lisa 与Lucy只有一个可能和你走,因为她们中一个必须呆在家照顾狗。所以应选;Either-or达标测评(1) Not only but repair it.A. can he; he can B. he can; can he C. can he ; can he D. he can; he can(2) Not onl