仁爱九上U2T2SC

U2T2SC

Section C

Ⅰ. Material analysis

本课是九年级第二单元第二话题的第三课时，主活动是1a和3。通过阅读1a，进一步学习各种污染对地球造成的危害和造成这些污染的原因，培养学生通过图片预测文章大意的能力，其中出现了很多关于环境的专业术语，需要学生了解。1b是训练学生运用不同的阅读策略完成不同的任务，如：通过观察1a中的图片匹配相应的标题，再阅读文章，给每段话选择标题；另外，继续训练学生通过语境，找出单词指代的内容；最后在理解课文的前提下，归纳文章的大意。1c培养学生通过精读文章，学会用简单的词句做笔记，再通过1c表格中的内容简要复述文章大意。2是培养学生的资源策略。要求学生合理地运用网络资源查找与环境危害相关的信息，然后进行小组讨论，并要求学生做好笔记，为任务3做准备。3要求学生运用这些信息，在1c和2的基础之上进行写作练习，教师应强调衔接词在作文中的重要性。由于课堂上不方便完成2，因此，可将2和3安排为课后作业。通过读写的结合训练，引导学生关注全球环境的现状，意识到环境保护的重要性，树立正确的环保观念。 Ⅱ.Teaching aims 1.Knowledge aims：

掌握本课的重点词汇和短语，初步感知定语从句。

进一步学习各种污染对地球造成的危害和造成这些污染的原因。 2.Skill aims:

能读懂有关环境问题的文章。

能根据不同的阅读目的，运用简单的阅读策略获取信息。

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九年级上册教学案例设计

能正确运用网络资源获取需要的信息。

能用英语书面的形式表达环境问题的成因及危害。 3.Emotional aims: (optional)

通过学习，了解环境现状，帮助学生树立绿色环保意识。 4.Culture awareness: (optional)

了解各种环境问题，如臭氧空洞，温室效应等，意识到环境问题的严峻形势。 Ⅲ. The key points and difficult points 1. Key points:

Words and phrases: hole, form, rise, oxygen, ozone layer, radiation, directly, carbon dioxide, blanket, escape, the greenhouse effect, refer during this period, take away, pass through

Sentences: (1) Forests have become deserts, so more and more sorts of animals and plants are disappearing. (2) As a result, many rivers and lakes are now dead.

(3) Too much harmful radiation from the sun passes through the hole and reaches the earth directly. (4) It causes the level of the oceans to rise and the climate of the earth to change. (5) When it rains or when the wind blows, the earth is taken away.

(6) The heat from the sun can’t escape, so the temperature is rising. Grammar: indefinite pronoun and adverb

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U2T2SC

2. Difficult points：

理解有关环境方面的专业术语。 能读懂与环境问题相关的科普类文章。 能运用所学知识，写出谈论环境现状的文章。 Ⅳ. Learning strategies

能在阅读不同体裁的材料时，运用不同的阅读策略获取信息。 善于利用插图预测科普类文章的内容。

能合理运用网络资源，拓展写作思路和开拓视野。 恰当使用连接词，使自己的作文流畅，有逻辑层次。 Ⅴ. Teaching aids

与环境相关的图片；单词卡片（如O2/ oxygen; ozone layer; radiation等）；录音机；国际臭氧层保护日宣传动画片等。

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九年级上册教学案例设计

Ⅵ. Teaching procedures

Stage (time period) Interaction patterns Teacher activity Check the Ss’ homework: Student activity Remarks Give a report about your own bad 用报告的形式让学生在课Let the Ss give a report about their own bad habits and how to make the campus 堂上反思自己平时的言habits and how to make the campus better. look better. 行，有助于学生更好提升自己，培养“爱护环境从我做起，从小事做起”的意识。 T: Hi, everyone. Last class, we have talked Getting students ready 1 for learning Class activity something about the school environment. Some of us may have some bad habits, and these habits can affect our campus. What can you do to make our campus look better? Please share your opinions with us. and revision （2 mins） S1: I often forget to turn off the lights when I S1: I often forget to turn off the leave the classroom. I think it doesn’t matter lights when I leave the classroom. I if the lights are on for a little while. And I think it doesn’t matter if the lights often waste some paper after I only use a are on for a little while. And I often small part of it. I like to use new paper. But waste some paper after I use only a 4

U2T2SC

now I realize these habits are really bad small part of it. I like to use new ones, so I hope every one of us can save paper. I hope every one of us can energy from now on. save energy from now on. T: Very good. If you can give more suggestions, it will be better. Next one. S2: I always make loud noise between S2: I always make loud noise classes. It disturbs others. I often throw between classes. It disturbs others. rubbish around in a corner if there is I often throw rubbish around in a nobody. But from now on, I will remember corner if there is nobody. But from to get rid of the bad habits. If everyone can now on, I will remember to get rid follow the school rules, our campus will of the bad habits. If everyone can become more beautiful. S3: … T: Great. 2 Lead-in (3 mins) Class activity Play the cartoon video about protecting the Watch the video and discuss what 通过播放视频，让学生了ozone layer. Let the Ss watch and discuss they have learnt from it. Take some 解每年的9月16日是国际follow the school rules, our campus will become more beautiful. S3: …

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