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1、Lesson 58 学案一、 学习目标：1、 掌握这些单词和短语: little-less-least leaking leaky throw away take out leak out turn off make pollution2、 能听懂有关环境问题的文章，会就环境问题表达自己的看法。3、 了解环境污染的严重性，认识到要保护我们周围的环境。二、 学习重难点：1、 掌握这些单词和短语: little-less-least leaking leaky throw away take out leak out turn off make pollution2、 会就环境问题表达自己的看法。
2、认识到要保护我们周围的环境。三、 为了达到学习目标，突破重难点，请在上课过程中完成以下练习：、Listen two times and answer these questions:1. Why do the students join “environment clubs”?2. What do students in North America do to stop pollution?、Read the text and answer true(T) or false(F):1. In North America, many students help their school make
3、 more pollution. ( )2. Environment clubs encourage students to bring their lunches in plastic bags. ( )3. They give prizes to the classes that make the least garbage. ( )4. On a no-car day, only teachers come to school by car. No students come to school by car. ( )5. A leaking toilet can waste twent
4、y to forty litres of water an hour. ( )6. In environment clubs, students dont fix leaky toilets and sinks. ( )7. A hundred kilograms of recycled paper saves seventeen trees. ( ). complete the dialogues.A: I cannot eat all the lunch.(not throw away)B:_.A: Danny makes the little garbage.(less.least)B:
5、 But Jenny makes the _ garbage than Danny.A: Oh, Li Ming makes the _ garbage of the three.A: Look, that tap is _.(leaking. leaky)B: Yes, that is a _ tap.A: lets call uncle Wang, he is a worker that fix the _ tap.A: I will throw away these papers here. (make pollution)B:_ .A: My bedroom is too crowde
6、d, What can I do?(take out)B: _ one of the three chairs.A: Oh,look! The tap is leaking.(turn off)B: _, please.A: There is much water on the floor.(leak out)B: this is the water that _ from that tap. Write a proposal（倡议书） to everyone around us, lets protect environment together, you can begin like th
7、is:ProposalDear my classmates: June 14th, 2006The environment around us is worse and worse, thats very bad for our health, we love ourselves, so we should also love our environment, so let us protect our environment together.We should do: A_B_C_We shouldnt do:A_B_C_Lets active quickly, make our environment more and more beautiful. Your truly Li Ming四、 通过本节课的学习，你的收获是：五、 你对本节课还有什么看法，你觉得本节课还应掌握些什么： 六、 为了更好的掌握本节课，请在完成以下作业：We should also protect our school yard, what advice can you give your headmaster about pollution in our school?
