Unit4GlobalwarmingⅢLearningaboutLanguageUsingLanguage课件(人教选修6).ppt

Unit4GlobalwarmingⅢLearningaboutLanguageUsingLanguage课件(人教选修6).ppt

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语篇理解;Ⅰ.Read the text and answer the following questions. 1.Why does Ouyang Guang write this letter to Earth Care? 答案: 2.What causes the growth of the greenhouse gas, carbon dioxide in the air? 答案: 3.What uses a lot of energy every day? 答案:;Ⅱ.Read the text and fill in the blanks.; Earth Care;A.词义配对 1.widespread     A.a promise to do something 2.average B.happening without being planned or thought about 3.advocate C.the facts or conditions that affect a situation;4.circumstance D.publicly support a particular policy or ways of doing things 5.casual E.around a usual or an ordinary level or standard 6.commitment F.existing or happening in many places or situations, or among many people 答案:1-F;2-E;3-D;4-C;5-B;6-A;B.根据构词法(-ency, -ence, -tion, -or, -ation, -ment)写出单词 7.tend (vi.)→ (n.) 8.exist (vi.)→ (n.) 9.pollute (vt.)→ (n.) 10.present (vt.)→ (n.) 11.disagree (vi.)→ (n.) 12.educate (vt.)→ (n.)→ (n.);1.average [教材P29原句] The greenhouse effect gives the earth’s surface the average temperature of 15℃. 温室效应使地球表面的平均温度保持在15℃。 ;(1)adj.平均的;普通的 ①The average price of houses in this city has increased by nearly 30%. 这个城市的平均房价增长了近百分之三十。 ②There was nothing special about the film — it was only average. 这部影片没有什么特别之处——不过是一般的片子。;(2)n.平均;平均数 ③The Houston Rockets lost their first five games by an average of six points. 休斯敦火箭队遭遇开局五连败,平均每场输6分。 ④On (the) average, a powerful earthquake occurs less than once every two years. 通常,强烈的地震每两年发生不到一次。 ⑤Mary’s school work is well above (the) average. 玛丽的学习成绩远远高于平均水平。;⑥        平均有(后跟数词) ⑦

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