人教版八下-Unit 7 what's the highest mountain in the world -Section A 1a—2d-ppt课件-(含教案)-省级优课-(编号：921ba).zip

Lets enjoy the beauty of naturenature! mountainmountaindesertdesert riverriver lakelake oceanocean fresh lake salt lake Who has the best eyesight视力？ highest longest heaviest deepest (深的） oldest more beautiful biggest largest smallest the most careful better earlier Guessing game : Who is he ? 14 65 1.82 He is fourteen years old. He is _ most of us.as old as He weighs sixty-five kilos. He is _ in our class.one of the thinnest boys He is _than any other student in our class.He is the tallest student in our class. much taller He is one point eight two meters tall. Where are you going this summer vacation，do you want to travel with me? Ill be the guide（导游）. First ,lets go abroad(出国）.Lets travel around the world by air . mountains sea green land deserts 沙漠 Unit 7 whats the highest mountain in the world? Section A 1a-1c Qomolangma tumul:m 珠穆朗玛峰 squareun. 平方 cn. 正方形 metercn.米 Read the words and expressions loudly deepadj.深的desertn.沙漠 adesert asaltlake FamousPlacesFamousPlaces ariver amountain 1b Listen and complete the sentences 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. higher thebiggest thedeepest thelongest Listening skills: before listening ,read and try to predict(预测）. Do you know these places? The Nile nal Qomolangma tumul:m The Sahara sh:r The Caspian Sea kspin Qomolangma tumul:m 珠穆朗玛峰 Qomolangma is higher than any other mountain in the world. It is 8,844.43 meters high. It is the highest mountain in the world. How high is it? It is 8,844.43 meters high. Qomolangma TheSahara sh:r 撒哈拉沙漠 The Sahara is the biggest desert in the world. Its about 9,600,000 square kilometers in size. Do you know the Sahara is the biggest desert in the world? Yes, it is about 9,600,000 square kilometers in size. The Sahara TheCaspianSea kspin 里海 The Caspian Sea is the deepest of all the salt lakes. Its 1,025 meters deep. TheNile nal 尼罗河 The Nile is the longest river in the world. Its 6,671 kilometers long. The second longest river in the world . -Do you know its name? -It is the Amazon. -Do you know how long it is? -Its about 6,500 kilometers long. the Amazon TheYangtzeRiveristhethirdlongestriver intheworld,thefirstlongestriverinAsia.Its about6,300kilometerslong.Itflowsthrough11 provincesandrunsintotheEastSeainShanghai finally. theYangtzeRiver 1a Match the facts you know. Qomolangmaabout9,600,000square kilometersinsize TheSahara1,025metersdeep TheCaspian Sea 6,671kilometerslong TheNile8,844.43metershigh 1000以上的基数词词的表示法: 先从右至左数，每三位数前加一个逗号。 如：1,234,567,890 onebilliontwohundredandthirtyfourmillion fivehundredandsixtyseventhousand eighthundredandninety 一逗是千 二逗百万 三逗十亿 Canyoureadthem? 9,600,000 1,025 6,671 8,844.43 thousandaznd millionmljn billionbljn Icanreadthem! 9,600,000 1,025 6,671 8,844.43 onethousandandtwentyfive eightthousandeighthundredandforty-four pointfourthree sixthousandsixhundredandseventy-one ninemillionsixhundredthousand 1a Match the facts you know. Qomolangmaabout9,600,000square kilometersinsize TheSahara1,025metersdeep TheCaspian Sea 6,671kilometerslong TheNile8,844.43metershigh Tops in the world the Caspian Sea 里 海 the Nile 尼罗河 Qomolangma 珠穆朗玛峰 the Sahara 撒哈拉沙漠 Its 1,025 meters _. Its 6,671 kilometers_. Its 8,844.43 meters _. Its 9,600,000 square kilometers _. deep long high in size Practice How+high/deep/long/wide +be+主 语？ Its +high/tall/long/wide/deep. How high is Qomolangma? Its 8,844.43 meters high. How long is the Nile ? Its6,671kilometerslong. How deep is the Caspian Sea ? Itis1,025metersdeep. How big is the Sahara ? It is 9,600,000 square kilometers in size. Qomolangma What is ?the highest mountain in the world How high is Qomolangma? Its 8,844.43 meters high. 1c. Use the information in 1a and 1b to make the conversations. A: Which/what is the in the ? B: A:How+high/deep/long/wide +be+主语？ B:Its+ +high/tall/long/wide/deep. xk pairwork What is ?the biggest desert in the world The Sahara How big is the Sahara ? It is 9,600,000 square kilometers in size. What is salt lake in the world ?the deepest The Caspian Sea How deep is the Caspian Sea ? Itis1,025metersdeep. What is ?the longest river in the world The Nile nal How long is the Nile ? Its6,671kilometerslong. What is Asia? the longest river in The Yangtze River How long is the Yangtze River ? Its6,300kilometerslong. Qomolangma Introduction of these interesting places Qomolangmarunsalongtheborder边界 betweenChinaandNepal.Itiscoveredwith snowalltheyearround.Its8,844.43meters high,thehighestmountainintheworld.Its 26kilometerslong. TheNile TheNileisthelongestriverintheworld.Its 6,671kilometerslong.Itrunsthrough9countries, itsoneofthelargestriversflowsthroughthe internationalstatesintheworld. TheCaspianSea TheCaspianSeaisthebiggestlakeandalso thebiggestsaltlakeintheworld.Its1,025 metersdeep.ItliesintheborderbetweenAsia andEurope. TheSahara TheSaharaisthebiggestdesertintheworld.It islocatedinthenorthernAfrica,climateconditions areverybad,isoneoftheearthsmostnotsuitable forbiologicalsurvival.Itsabout9,600,000square kilometersinsize. Homework:Groupwork,A survey 小组内讨论谁最高、最矮、最细心、最懒、 最活跃并汇报。 NameThe tallest The most careful The shortest The most outgoing Report : In our group,is the But is the 教学目标 Knowledge aims: 1.Words and phrases: the earth, in Asia, the Yangtze River, the Nile, in Africa, the Caspian Sea, Qomolangma, desert, the Sahara, square ，kilometers 2. Expressions: Whats the highest mountain / the longest river / the deepest salt lake / the biggest desert in the world? How high is it? To express the big numbers using: thousand, million,billion, kilometer long / deep / high Ability aims: 1. The students can use the questions to get information to improve their listening and speaking abilities. 2. To train the students cooperation with their partners. Emotional aims: To train the students to care about the worlds environment through talking about the worlds tops. 教学重难点 Teaching important points: 1. The comparative and superlative of adj. 2. Note its grammar meaning and use “what” questions to ask about the worlds tops. Teaching difficult points: The students can ask questions to get information to improve their listening and speaking abilities. 教学准备 Teaching aids: CAI 教学过程设计 Step 1 Grammar preview 1. Review the superlative of adj by a word game. 2. Review numbers by guessing who he is. Step 2 Presentation & talk 1. Show on the screen some pictures and learn the new words. 2. Challenge the memory. Step 3 Listening (1b) 1.Before listening,let the students read and try to predict. 2.Get the students to listen and complete the sentences. 3. Listen again and check the answers. Step 4 Explain the listening material by ppt. Ask some questions like this； Whats the highest mountain / the longest river / the deepest salt lake / the biggest desert in the world? How high/long/deep/big is it? Step5 Activity 1a 1. Get the students to read through the pictures in Activity 1a and match the statements with the right picture. 2.Let the students look the tops in the world and complete the sentences. 3. Practice the conversations like this: A: How long is the Nile? B: It is 6,671 kilometers long. Step 6 Pair work (1c) 1. Get the students to have a pairwork, talking about the places in the picture. 2. Practice the conversations with the partners likes: A:What is the highest mountain in the world? B:Qomolangma. A:How high is it? B:It is 8,844.43 meters high. Step 7 Introduction Let the students introduction Qomolangma,the Nile,the Caspian Sea and the Sahara. Step 8 Homework Discuss who is the tallest/the most careful/the shortest/the most outgoingin a group.Then let the students report it on the exercise books. 板书设计 Unit 7 Whats the highest mountain in the world? Period 1 Section A (1a-2c) A:What is the highest mountain in the world? B:Qomolangma. A:How high is it? B:It is 8,844.43 meters high.