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：136d6).zip

How to say these numbers？ eighteen eighteen eighteen eighteen oneoneoneone hundredhundredhundredhundred andandandand eightyeightyeightyeighty one one one one thousandthousandthousandthousand andandandand eighteighteighteight hundredhundredhundredhundred eighteighteighteight eighteen thousand eighteen thousand eighteen thousand eighteen thousand one hundred and eighty thousand one hundred and eighty thousand one hundred and eighty thousand one hundred and eighty thousand one million and eight hundred thousand one million and eight hundred thousand one million and eight hundred thousand one million and eight hundred thousand one billion and eight hundred million one billion and eight hundred million one billion and eight hundred million one billion and eight hundred million 8 8 180180 1,8001,800 18,00018,000 180,000180,000 1,800,0001,800,000 1,800,000,0001,800,000,000 1818 millionmillionmillionmillionbillionbillionbillionbillionthousandthousandthousandthousand 62 365 3,000 10,000 9,600,000 1,400,000,000 billion million thousand Can you make up Can you make up sentences with these sentences with these numbersnumbers？ Task 1Task 1 Task 2Task 2 What is your favorite subject? Can you guess what my favorite subject is？ What can we learn in a geography class？ geography mountainmountain desertdesert riverriversea/oceansea/ocean lakelake fresh lakesalt lake Do you know these places? Qomolangmat u m u l a: m the Sahara | s h a: r | the Caspian Sea | k s p i n | The Caspian Sea is a _(lake/sea) lake the Nile | n ai l | square n. 平方 meter n. 米 deep adj. 深的 square meter 平方 米 Qomolangma large The Sahara deep The Caspian Sea long The Nilehigh Match the places with the description words is 1a Match the facts you know. Qomolangma about 9,600,000 square kilometers in size The Sahara1,025 meters deep The Caspian Sea 6,671 kilometers long The Nile8,844.43 meters high nine million and six hundred thousand one thousand and twenty-five six thousand six hundred and seventy-one eight thousand eight hundred and forty- four point four three 面积 is Practice in pairs like this: A: How high is Qomolangma? B: Its 8,844.43 meters high. A: How high/ deep/ long/large is? B: Its meters/ kilometers . Task Task 3 3 B ： C ： 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 the biggest the deepest the longest the highest bigger than any other desert deeper than any other salt lake. longer than any other river 1c Use the information in 1b to make conversations. Im going to test you by asking a few questions It seems that you know the answers to all my questions . Good job Thats right./Very good./Youre so smart Task 4Task 4 What did we learn in this class？ How to read large numbers How to describe the size Superlative and comparative( 最高级和比 较级互换) 1. Memorize the important phrases and sentences. 2. Make some dialogues about asking the size of objects. Love the natureLove the nature Cherish your lifeCherish your life 热爱大自然热爱大自然 珍爱生命珍爱生命 Unit 7 Whats the highest mountain in the world? Section A 1a1c 教学目标：教学目标： 一、知识目标一、知识目标 1、能熟练掌握和运用本节课重点单词和句型 dessert, meter, square, square meter, in size -Whats the highest mountain in the world? -Qomolangma. -How high is it? -Its 8,844,43 meters high. 2、能听读大数字 二、能力目标二、能力目标 1、能够表达物体的长、高、深和面积； 2、能正确运用形容词的比较级和最高级，并能自如转换。 三、情感目标三、情感目标 1、培养学生积极参与活动的兴趣、竞争的意识。 2、培养学生赏析身边同学的意识。 四、文化意识四、文化意识 让学生了解世界上的名山大川，热爱自然，珍惜生命。 教学重难点：教学重难点： 一、重点一、重点 1、听读大数字； 2、描述物体尺寸。 二、难点二、难点 形容词比较级和最高级互换。 教学过程：教学过程： Step I Lead in i. Greet students. ii. Review how to read cardinal numbers. iii. Teach them how to read large numbers. Step Practice i. Task 1 Have the students stand up and read out the numbers on the screen without raising hands. ii. Task 2 Make up sentences with these numbers. Step Presentation i. List the things in the nature. ii. Introduce Qomolangma. The Sahara, The Caspian Sea, and the Nile. iii. Teach new words. iv. Match the places with the adjectives. v. Match the facts with the places. Step Pair work i. Ask and answer in pair. ii. Chair practice. Step 1b i. Predict the words they may fill in. ii. Point out the key words in each sentence. iii. Check the answers by reading. iv. Change the sentences and read again. Step Task 4 1c Make conversations using the information in 1b. i. Group work Take turns to be the teacher, ask the other three students question. ii. Role play the conversation. Have the students use the phrases to praise the rest who answer his or her questions. Step Summary What did we learn in this class? i. How to read large numbers. ii. How to describe the size of objects. iii. Superlative and comparative. Step Homework i. Memorize the important phrases and sentences. ii. Make some conversations about asking the size of objects. 板书 Whats the highest mountain in the world? QomolangmaHow high is Qomolangma? The NileIts 8,844.43 meters high. The Caspian SeaIts higher than any other mountain in the world? The Sahara Its the highest mountain in the world.