仁爱版英语九年级上册Unit2Topic2 SectionC 教学设计Word格式文档下载.docx

1、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。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: 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。. The key points and difficult points1. Key points:Words and phrases: hole, form, rise, oxygen, ozone

2、 layer, radiation, directly, carbon dioxide, blanket, escape, the greenhouse effect, refer during this period, take away, pass throughSentences: （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

3、 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 cant escape, so the temperatur

4、e is rising.Grammar: indefinite pronoun and adverb2. 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。. 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。. Teaching aids与环境相关的图片；单词卡片（如O2/ oxygen; ozone layer; radiation等）

5、；录音机；国际臭氧层保护日宣传动画片等。. Teaching procedures Stage（time period）InteractionpatternsTeacher activityStudent activityRemarks1Getting students ready for learning and revision（2 mins）Class activityCheck the Ss homework:Let the Ss give a report about their own bad habits and how to make the campus better.T:

6、Hi, everyone. Last class, we have talked 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.S1: I often forget to turn off the lights when I leave the

7、classroom. I think it doesnt matter if the lights are on for a little while. And I often waste some paper after I only use a small part of it. I like to use new paper. But now I realize these habits are really bad ones, so I hope every one of us can save energy from now on. Very good. If you can giv

8、e more suggestions, it will be better. Next one.S2: I always make loud noise between classes. It disturbs others. I often throw rubbish around in a corner if there is nobody. But from now on, I will remember to get rid of the bad habits. If everyone can follow the school rules, our campus will becom

9、e more beautiful. S3: Great.Give a report about your own bad habits and how to make the campus look better. I often forget to turn off the lights when I leave the classroom. I think it doesnt matter if the lights are on for a little while. And I often waste some paper after I use only a small part o

10、f it. I like to use new paper. I hope every one of us can save energy from now on.用报告的形式让学生在课堂上反思自己平时的言行，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。2Lead-in（3 mins）Class activity Play the cartoon video about protecting the ozone layer. Let the Ss watch and discuss what they have learnt from it. Take some not

11、es if necessary. Here is a video about protecting the ozone layer. Lets watch it carefully. Then I will ask you something about it. . Now Lets figure out something about ozone layer. Is ozone layer important or unimportant?Ss: Its very important Can the ozone layer protect us? Yes. What happened to

12、it now? There is a big hole in the ozone layer. Yes. Whats the effect of it? Its harmful to all the living things, especially to humans for it does harm to our eyes and skin.Watch the video and discuss what they have learnt from it. Take some notes.通过播放视频，让学生了解每年的9月16日是国际臭氧层保护日，关注臭氧层的现状。该宣传片是卡通版，不是枯

13、燥的科教片，能够很好地吸引学生的注意力。如果条件不允许，教师可以从课外书籍上选读一些与环境相关的文章。3Pre-reading （5 mins）Step 1: Show two pictures of ozone layer and more carbon dioxide. Introduce them to the Ss briefly to teach the new words. Right. Ozone is a special kind of oxygen. It can protect the earth. Now people produce lots of harmful ch

14、emicals into the air. They cause a big hole in the ozone layer. So the radiation can pass through the hole and reach the earth directly. （Show the picture of more carbon dioxide and lead the Ss to learn the new words in the same way.）Step 2: Guide the Ss to predict the main idea of the passage by th

15、e given pictures. Now look at the pictures on Page 39, can you guess what we will learn in the passage. Something about pollution. Traffic pollution / air pollution Ozone layerS4: Cutting down treesS5: Carbon dioxideLook at the pictures and learn the new words according to teachers descriptions.Pred

16、ict the main idea of the passage by the given pictures. Traffic pollution在观看宣传片后，再介绍有关臭氧层和温室效应的英文词汇，学生容易理解，也容易掌握。培养学生通过观察图片，预测课文内容的能力，这有助于学生在日常阅读中，快速获取信息。4While-reading （20 mins）Individual workIndividualworkGroup work Let the Ss match the pictures with the titles in 1 of 1b, and then read paragraphs

17、 2-6 quickly and write down the proper title in front of each paragraph. Excellent. Now read 1a quickly, match the pictures with the titles in Exercise 1 quickly. Picture 1 is traffic pollution. Picture 2 is the ozone layer. Picture 3 is fewer trees. Picture 4 is more carbon dioxide. Picture 5 is fa

18、ctory pollution. Right. Now please read paragraphs 2-6 quickly, choose a title for each para and write down in front of it. OK, lets check the answer together.S6: Para 2 is fewer trees.S7: Para 3 is traffic pollution.S8: Para 4 is factory pollution.S9: Para 5 is the ozone layer.S10: Para 6 is more c

19、arbon dioxide. Lead the Ss to read paragraph 1, 5 and 6, find the words in Exercise 2, 3 and 4 and guess the meanings of them according to the content. Great. Now read paragraph 1, 5 and 6, find the words in Exercise 2, 3 and 4 and guess the meanings of them according to the content. What does “our

20、planet” mean in this para? It means “the earth”. What does the word “blanket” refer to? Carbon dioxide around the earth. What does the word “it” in Para 5 refer to? It refers to “O3”.Step 3: Let the Ss read 1a carefully, choose the best title for the passage and finish 5 in 1b. Then complete the not

21、es in 1c according to 1a. Please read the passage and choose the best title for the passage. OK. Have you got the main idea of the passage? Yes. Environmental problems. Right. Try to finish the notes in 1c according to the passage. Pay attention to use the key words when taking notes. You can discus

22、s with your group members. OK. Have you finished? Whats the effect of traffic pollution? People have health problem. Whats the effect of factory pollution? Factories make the river and lakes dead. Thats right. You did very well.Match the pictures with the titles in 1 of 1b, and then read paragraphs

23、2-6 quickly and write down the title in front of each paragraph. Picture 1 is traffic pollution.Read paragraph 1, 5 and 6, find the words in Exercise 2, 3 and 4 and guess the meanings of them according to the content. Read 1a carefully, choose the best title for the passage and finish 5 in 1b. Then

24、complete the notes in 1c according to 1a.教师在安排1b的阅读任务时，要注意以下两点：1.引导学生用不同的阅读策略完成不同的阅读任务。2.任务的安排要有层次性，从易到难。训练学生通过上下文猜测单词指代的内容，有助于学生更好的理解课文。该环节的三个小任务是用相同的方法获得信息，因此，可以一次性完成。归纳文章中心思想，是学生较为头疼的题目，因此，如果文章较长的话，最好把它放到最后一个环节处理，降低难度，教师要引导学生用排除法作出正确的选择。5Post-reading （12 mins）Individual work, Group work and class

25、 activityPair work Step1: Let the Ss read 1a carefully, find out the difficult points, and list them on the Bb. Read 1a again and find out the difficult points. Please collect them in groups and list them on your small Bb. OK, now look at the points of Group One on the Bb. Look at this one “What does the word “others” refer to?” Who can deal with it? Something we have done. OK, look at this sentence “the earth is taken away”. Who can translate it? It means “泥土被带走了” in Chinese.