重慶市九年級(jí)英語上冊學(xué)案：Unit2 7【精校版】

仁愛版精品英語資料（精校版）九年級(jí)（上）英語 導(dǎo)學(xué)案 班級(jí) 姓名 課題學(xué)習(xí)目標(biāo)1. Learn some new words and phrases:on earth, period, millions of, take away, rise, level, refer to2. Learn some useful sentences: (1) When it rains or when the wind blows, the earth is taken away. (2) The heat from the sun cant escape so the temperature is rising.3. Learn to talk about the harm of pollution:(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.4. Develop the students sense of environmental protection. 學(xué)習(xí)重點(diǎn)Learn some useful sentences:and talk about the harm of pollution:學(xué)習(xí)難點(diǎn)environmental protection. 教學(xué)方法和教學(xué)時(shí)數(shù)采用多媒體教學(xué)方法，小組合作探討，師生問答等方式1 period學(xué) 習(xí) 過 程學(xué)習(xí)內(nèi)容（學(xué)生活動(dòng)）學(xué)習(xí)方法教師知識(shí)講解一、 學(xué)前準(zhǔn)備檢查作業(yè)，引導(dǎo)學(xué)生開拓思維，提出保護(hù)環(huán)境和水資源的具體措施，復(fù)習(xí)不定代詞和副詞。為學(xué)習(xí)新詞匯作準(zhǔn)備。根據(jù)句意及首字母提示補(bǔ)全單詞。1.During this p_ we have changed our planet a lot in many ways.2.First you must dig a h_ before planting a tree.3.The flood nearly reached roof l_.4.I hope the boy wont have bad b_ as before.5.When the sun r_, everything is bright.學(xué)生課前 完成教師通過日常對話，借助1a中的圖片，創(chuàng)設(shè)情景，導(dǎo)入新課，呈現(xiàn)新的詞匯。1. (教師由日常對話，引出本課話題，呈現(xiàn)部分新詞匯。)2.讓學(xué)生快速閱讀1a，用所給的詞組填空。完成1a。) 教師出示小黑板上的問題，讓學(xué)生再讀一遍課文后回答。)二、 獨(dú)立思考、解決問題檢查作業(yè)，并找學(xué)生匯報(bào)結(jié)果，引導(dǎo)學(xué)生如何保護(hù)水資源。)T:How do you protect our environment and save water?S1:Everyone should plant more trees.S2:We should do everything we can to save water.S3:Everybody should know the importance of forests.S4:Pass laws against water pollution.S5:Collect and reuse waste water學(xué)生自主學(xué)習(xí)課堂展示三分組討論 合作探究讓學(xué)生討論各種危害地球的污染方式，并就有關(guān)污染寫一篇短文，培養(yǎng)學(xué)生綜合運(yùn)用語言的能力，增強(qiáng)學(xué)生的環(huán)保意識(shí)。T: OK, until now, we have learned so many kinds of pollution. Now please work in groups and discuss them. After a moment, Ill ask some students to report it. 小組合作完成組內(nèi)交流課堂展示三、 自學(xué)反饋 精講點(diǎn)撥1while 并列連詞，“而，卻”，表示對照關(guān)系。while- 在時(shí) - 從屬連詞，常引導(dǎo)含有延續(xù)動(dòng)詞的時(shí)間狀語從句，表示一個(gè)動(dòng)作在進(jìn)行的同時(shí)，另一個(gè)動(dòng)作也在發(fā)生 while- 一會(huì)兒，一段時(shí)間 - 名詞 常用短語：for a while - 一會(huì)兒2.take away 拿走，取走3.rise - 升起，上升 (不及物動(dòng)詞) 拓展：raise 舉起，提起，抬起 ； 籌集 (及物動(dòng)詞小組內(nèi)交流并選取代表歸納總結(jié)五、課后練習(xí)1.根據(jù)給出的提示詞寫一篇小短文，可先口述。)T: Write a short passage with the key words given.(板書關(guān)鍵詞。) (1)changein many ways(2)important, destroy, too much, harmful radiation, cause cancer(3)increase a lot, blanket, rise, change(4)serious, do something二.詞匯。（10分）(A) 根據(jù)句意及首字母提示補(bǔ)全單詞。1.During this p_ we have changed our planet a lot in many ways.2.First you must dig a h_ before planting a tree.3.The flood nearly reached roof l_.4.I hope the boy wont have bad b_ as before.5.When the sun r_, everything is bright.三.情景交際。（5分）A: Where have you been, Mike? I phoned you, but you werent in.B: 11 A: Why did you go there?B: 12 It has made several old people who live nearby sick.A: 13 B: Do you think“Greener China”can do something?A: 14 I think we should write a letter to the newspaper about the pollution.B: 15 Its our duty to protect the environment.A.Ive been to a farm.B.Good idea!C.Ive been to a rubber factory.D.Because I found the factory pouring waste water into the river.E.Thats terrible.F.What should we do to stop it?G.Yes, of course.獨(dú)立完成小組內(nèi)檢測教 學(xué)反 思    編寫:張?jiān)葡肌⑵畹掠瘛⒔?、左坤靜 校審:顧德金