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2019-2020年高中英語(yǔ) Unit4,book6 Global warming教案 新人教版選修6 ★ Warming up 1. Please list as many energy sources as you can. ___________________________________________________________________________ 2. which energy sources on your list are renewable and which are non-renewable? _______________________________________________________________________________ 閱讀小貼士一 我們可以利用構(gòu)詞法來(lái)猜測(cè)詞義。 re（重新；再） → new → able → renewable（可再生的） 再如，reconstruct ___________; regroup __________; rethink _________; reuse _________ ★ Pre-reading Activities Talk about the picture at the bottom of the page 25 1. What can you see in the picture? ______________________________________________ 2. How does it work? _____________________________________________________________ 3. What do you know about “ greenhouse gases”? _______________________________________________________________________________ ★ While- reading Activities First reading Glance quickly at the magazine and answer the questions. 1. What’s the main topic of the article? _______________________________________________ 2. Who wrote the magazine article? What is the name of the article? ________________________ 3. What are the names of the three scientists mentioned in the article? _______________________ 閱讀小貼士二 Please read LEARNING TIP at page 32. 4. What are the two graphs about? What are they for? _______________________________________________________________________________ Second reading Read the text quickly to get the main idea of each paragraph. 1. ________________________________________________________________ 2. ________________________________________________________________ 3. ________________________________________________________________ 4. ________________________________________________________________ 5. ________________________________________________________________ 6. ________________________________________________________________ 7. ________________________________________________________________ 閱讀小貼士三 Topic Sentence （主題句） Each paragraph has a main idea. Sometimes the main idea of a paragraph is directly written down. We call that sentence topic sentence. The topic sentence can appear at the beginning, middle or end of a paragraph. Most often, though, it appears at the beginning. Third reading Read the text quickly to list the ideas and major details. Part I ( paragraph 1) to introduce the topic. (1)_______________________________ ↓ Part II ( paragraph _________) (2) _______________________________ How has global warming e about? ↓ (3) _______________________________ _________________ to make life positive effects _________________ for human Part III ( paragraph _______) __________________ beings better effects of global warming negative effects __________________________ Part IV the last paragraph conclusion of the article 閱讀小貼士四 Listing （列舉） When you read, you can list the ideas and major details, which is of great value for your reading prehension. While listing, you can copy whole sentences and phrases, or you can shorten them, so long as you capture the main idea. Making a list is like taking notes, or writing an informal outline. When you are done, you have your own statement of what is important in the reading. Fourth reading Read each paragraph carefully for detailed information, and finish the exercises blow. Paragraph 1 1. During the 20th century the temperature of the earth rose about one degree Fahrenheit. Notes: Fahrenheit華氏度 1714年德國(guó)人法勒海特(Fahrenheit)以水銀為測(cè)溫介質(zhì),制成玻璃水銀溫度計(jì)，選取氯化銨和冰水的混合物的溫度為溫度計(jì)的零度,人體溫度為溫度計(jì)的100度，把水銀溫度計(jì)從0度到l00度按水銀的體積膨脹距離分成100份,每一份為1華氏度，記作“1℉”。按照華氏溫標(biāo)，則水的冰點(diǎn)為32℉，沸點(diǎn)為212℉。 “華氏溫標(biāo)”是經(jīng)驗(yàn)溫標(biāo)之一。在美國(guó)的日常生活中，多采用這種溫標(biāo)。華氏溫度用字母“F”表示。 攝氏溫度（℃）和華氏溫度（F）之間的換算關(guān)系為： F=9/5℃+32, 或 ℃=5/9(F-32) 攝氏度9/5+32=華氏度。 2. It is a rapid increase when pared to other natural changes. Rewrite this sentence: It is a rapid increase ___________ ___________ other natural changes. 3. So how has this e about and does it matter? Here in the sentence, “ e about” can be replaced with “ __________ ___________”. What does “ matter” mean? What’s its synonym（同義詞）？_____________________________ Paragraph 2 1. There is no doubt that the earth is being warmer and that it is human activity that has caused this global warming rather than a random but natural phenomenon. Here in this sentence, “that” has been presented three times, can they be omitted（省略）? Paragraph 3 1. All scientists subscribe to the view that the increase in the earth’s temperature is due to the burning of fossil fuels. Rewrite: All scientists ________ _________ __________ _________ the view that the increase in the earth’s temperature is due to the burning of fossil fuels. 2. Dr Janice Foster explains: “ There is a natural phenomenon that scientists call the ‘greenhouse effect’.” ① “Dr” is the abbreviation （縮寫(xiě)形式）for “ ___________”. Generally, it has two meanings. What are they? ________________________ ② Here in the sentence, can “that” be omitted（省略）？ Paragraph 4 We know that the levels of carbon dioxide have increase greatly over the last 100 to 150 years. ① What does “ level” mean? A. the amount of sth. B. a particular standard or quality C. the height of sth. in relation to the ground D. a floor of building ② According to the context, there are another two ways to express “ the levels of carbon dioxide”. What are they? __________________ _________________________ Paragraph 5 It is the burning of more and more fossil fuels that has resulted in this increase in carbon dioxide. Rewrite: It is the burning of more and more fossil fuels that has _________ __________ this increase in carbon dioxide. Paragraph 6 On the other hand, there are those, like George Hambley, who are opposed to this view and believe that we should not worry about high levels of carbon dioxide in the air. ① What does “this view” refers to? _________________________________________________ ② Guess the meaning of the phrase “ are opposed to” according to the context. ★ Post-reading Activities 1. What’s the author’s attitude towards the global warming? _______________________________________________________________ 閱讀小貼士五 作者觀點(diǎn)態(tài)度題 設(shè)題方式：(1) What’s the writer’s attitude in writing this passage? (2) The text is mainly written in a(n) __________ tone. 對(duì)策：無(wú)論是新聞報(bào)道還是科研報(bào)告，此類題材的文章作者力求站在客觀公正的立場(chǎng)上傳遞信息。因此，此類試題的答案往往是：objective（客觀的）或neutral（中立的）。 2．Put the following into English. （1）可再生資源 __________________ (2) 溫室效應(yīng) ____________________ （3）發(fā)生；造成 __________________ (4) 同意；贊成 ___________________ （5）往往做某事；易于 ______________ (6) 上升 _____________________ （7）導(dǎo)致 __________________ (8) 反對(duì) __________________ （9）即使 __________________ (10) 繼續(xù) __________________ （11）二氧化碳含量 ______________________ (12) 聚集；增加 _________________