八下Unit7 SectionA1a-2d.docx

人教版八年級下冊unit7 whats the highest mountain in the world? section A (1A-2b)教材分析：本節(jié)課是人教版八年級下冊unit7的第一課，課型為聽說課，以聽和說操練為主。在教山峰河流沙漠的單詞時，學(xué)生比較生疏，所以先讓他們查查資料，上課時會就會熟悉一些。對于短語as big as, much bigger教師用PPT圖片呈現(xiàn)出來，學(xué)生學(xué)起來會輕松一些。對于聽力部分，大多數(shù)的學(xué)生聽力基礎(chǔ)不好，太長的聽力填空對他們來說很難完成，所以把它整合成4段，并每段只有一問一答，這樣學(xué)生會更容易捕捉需要的信息。對于難點(diǎn)讀大數(shù)字這一塊，老師先讓學(xué)生課前百度了解一下讀的方法，在課堂上還安排了一個聽力，一個小組互助活動，還有一個改錯活動，讓學(xué)生突破難點(diǎn)。學(xué)情分析：學(xué)生之前有學(xué)過形容詞的比較極和最高級，對比較極掌握得還可以，但是用最高級表達(dá)句子時最易犯以下錯誤：前面沒有the， 忘了用in/of說明一個范圍， 因此，圍繞主題用表格展示這些出來，并讓他們觀察，歸納; 學(xué)生聽力基礎(chǔ)不好，老師把1b的聽力材料整合并分為4段，并先讓他們猜測，對于2b的聽力，學(xué)生能聽出數(shù)字就可以了。Targets:1.students are able to pronounce and use the following words：square, meter, deep, long, desert, mountain, salt lake. The Sahara，Qomalangma，The Caspian Sea, The Nile2. students are able to read and understand the sentences：-Whats the highest mountain in the world? -How high/deep/big/long is the.? It is about3. students get familiar with the usage of the comparatives and superlatives of adjectives.4. Students are able to read big numbers.Key point: Ss are able to use comparative words and superlative words to talk about the geography.Difficult point: Ss are able to read the big numbers.導(dǎo)學(xué)案：學(xué)生自找資料了解The Sahara， Qomalangma， The Caspian Sea,The Nile 并翻譯：一、1025 meters deep_6670 kilometers long_9,600,000 square kilometers_ （參考書）二、用英語讀出以下數(shù)字：420 5600 （百度）三、寫出以下比較級和最高級。（參考八年級上冊96頁）tall_ _ big_ _ long_ _四、翻譯：我比他高。 全班我最高。設(shè)計(jì)意圖：讓學(xué)生了解主題的背景知識，學(xué)起來會熟悉一些同時檢測學(xué)生對舊知識的掌握程度， 以便調(diào)整上課步驟。教學(xué)環(huán)節(jié)：一 、檢查導(dǎo)學(xué)案，評價。二、學(xué)習(xí)新課1、 Warm-up Ss watch a video（Qomolangma, The Nile, The Caspian, The Sahara的視頻剪輯合并）。T: Would you like to visit them?2、Ss learn the target words by PPT pictures. (Qomolangma, The Nile, The Caspian, The Sahara的圖片配上數(shù)字說明，并且有飛機(jī)逐漸飛向這些景點(diǎn)的動畫效果)。T:whats this?Ss: Qomolangma.T: Is it a mountain or a river?S: a mountain.T: How high is it? (T help the students say the number: it is 8,844.43 meters high) T: It is very high, it is the highest mountain in the world. (write the words Qomolangma mountain high on blackboard)用這種方法呈現(xiàn)以下單詞：The Sahara desert square kilometers The Caspian Sea deep The Nile.設(shè)計(jì)意圖：用三維重現(xiàn)教學(xué)法，先呈現(xiàn)目標(biāo)單詞和目標(biāo)句，讓學(xué)生先有印象。后面還會重復(fù)聽，說，練，不急于一下子會讀會記。符合學(xué)生的學(xué)習(xí)規(guī)律。3.Ss match the facts they know.Qomolangma About 9,600,000 square kilometers in sizeThe Sahara1,025 meters deepThe Caspian Sea6,671 kilometers longThe Nile8,844.43 meters high設(shè)計(jì)意圖：及時激活學(xué)生剛接觸的新知識，并檢測復(fù)習(xí) in size deep long high.4、listening.(教師結(jié)合原材料，自已錄音整合得更簡單,并分為四段)聽力整合分段如下：1,A: What is the highest mountain in the world?B:Qomolangma is the highest mountain in the world, it is higher than any other mountain in the world.2, A: Whats the biggest desert in the world?B: Sahara is the biggest desert in the world.3,A: Whats the deepest salt lakes in the world? B: The Caspian Sea is the deepest of all the salt lakes.4, A: Whats the longest river in the world? B: The Nile is the longest river in the world.Pre-listening. Ss read the sentences and predict the worlds silently. 1. Qomolangma is _ than any other mountain in the world. 2. The Sahara is _ desert in the world.3. The Caspian Sea is _ of all the salt lakes.4. The Nile is _ river in the world.設(shè)計(jì)意圖：根據(jù)剛學(xué)新知識預(yù)測，讓學(xué)生有目的去聽，這樣準(zhǔn)確率高一些。While listening 第一遍聽，第二遍請同學(xué)回答，老師引導(dǎo)其它同學(xué)糾正或補(bǔ)充。After listeningSs practice the dialogues with partner by a table box on PPT and show their workout.QomolangmaThe highest mountain In the worldThe SaharaThe biggestIn the worldThe NileThe longestIn the worldCaspian SeaThe deepestOf all the salt lakeA: What is the in /of ?B: Help Ss sum-up: 形容詞最高級的后綴一般為：est,而且在句子表達(dá)中，前面有the, 表范圍時用 in 或of.設(shè)計(jì)意圖：學(xué)生在說中觀察，并讓他們自己歸類，他們會記得更清楚。5, reading big numbers.T: They are the number 1 in the world, but do you know how to read the number about them? Ss learn to read the numbers.Qomolangma About 9,600,000 square kilometers in sizeThe Sahara1,025 meters deepThe Caspian Sea6,671 kilometers longThe Nile8,844.43 meters high T write the number in English on the board. All the students read together and sum-up: 把數(shù)組每隔三位分在一起，用逗號隔開，從右向左，第一個三位按hundred，第二個按thousand，第三個按million，遞四個按billion讀. （PPT屏幕顯示）6,Listen and fill in the numbers from the box.Pre-listening. Ss read the number in groups.While listening, Ss listen for the first time and number 1-4 in the order they hear them. For the second time, Ss fill in the blanks with the big numbers.After listening, Ss learns the usage of much+形容詞比較級and as as by pictures on PPT.7, play a game. Ss work in group (5students one group), each one give out a large number, the others try to read out the numbers, they learn and help each other.設(shè)計(jì)意圖：學(xué)生通過小組合作，互相幫助一起攻破難點(diǎn)。 8，Production: they share their work out, and teacher chooses one number(讓學(xué)生有表達(dá)欲望的數(shù)字) and ask them to say some sentences by using comparative or superlative words。（句子越多越好）設(shè)計(jì)意圖：沒有設(shè)定句型，讓學(xué)生自由發(fā)揮，這樣的動態(tài)課堂有利于培養(yǎng)學(xué)生的創(chuàng)新能力，但也需要老師有一定的觀察能力和應(yīng)變能力。9,課堂檢測： 改錯 1、 She is much tallest in her class.2、 Lily has the longer hair in our class.3、 Linda is as heavy than Ben.4、 9600的讀法是： nine hundred six thousand.5、 The Nile is 6,671 kilometers deep.6、 Qomalangma is 9,600,000 kilometers.設(shè)計(jì)意圖：初二生的好奇心強(qiáng)，而且喜歡找別人的毛病，讓他們找錯，會比較感興趣且認(rèn)真。另外教師可以檢測他們對這節(jié)課的掌握程度，為下堂課的內(nèi)容做好準(zhǔn)備。10，歸納總結(jié), 老師指著板書內(nèi)容和學(xué)生一問一答把對話操練一遍。自我評價：我能用數(shù)字表達(dá)地理自然6,671 kilometers long 我能用比較級和最高級談?wù)摰乩碜匀籭s thein the worldis than any other in the world我能說和聽出大數(shù)字5000 8844.43設(shè)計(jì)意圖：學(xué)生通過自我評價，了解自己學(xué)習(xí)情況，有利于把握復(fù)習(xí)方向。老師也可以很快地收到學(xué)生學(xué)習(xí)的反潰，給及時給予幫助輔導(dǎo)。板書設(shè)計(jì) ：8,844.43 metersQomalangma high (highest) mountain 9,600,000 square kilometersThe Sahara In size (biggest ) desert 1,025