Unit7 What's the highest mountain in the world Section A 1a-1c课件 2023-2024学年人教版八年级英语下册

Unit 7 What's the highest mountain in the world？ Section A 1a-1c 1 Aims Learn to talk about geography and nature. Develop students’ listening and speaking skills. Learn to compare facts and figures. Warming up the earth One earth and one family. We live on the earth. 3 Warming up Let’s enjoy the beauty of nature! mountain desert river lake salt lake fresh lake sea 4 Warming up Do you like geography classes? We can learn all kinds of weathers... in the word. We can learn ... many tops in the world. 5 Warming up 6 Lead in What’s the highest mountain in the world? It’s Qomolangma.喜马拉雅山 [ 'tʃəuməu,la:ŋmə] How high is it? It's 8,848.86 meters high. eight thousand eight hundred and forty-eight point eight six 7 Lead in Can you read the numbers ? 10 25 100 175 1,000 1,342 1,000,000 2,300,000 3.54 ten twenty-five one hundred one hundred and seventy-five one thousand one thousand three hundred and forty-two one million two million three hundred thousand three point five four 8 Presentation Have a try! 86，510 eighty-six thousand five hundred and ten 2，019 two thousand and nineteen 7，725，385 seven million seven hundred and twenty-five thousand three hundred and eighty-five 英语里没有万，十万的表达 一万：ten thousand 十万： one hundred thousand 百万 million 百位数没有，不读 9 Presentation Summary 把长数字分为3个数字一组，用逗号隔开，从右到左， 把第一个逗号看作thousand，第二个逗号看作million,第三个逗号是billion 7899256 7 , 899 , 256 seven million eight hundred and ninety-nine thousand two hundred and fifty-six “and” 只有十位数和百位数之间出现 百位数没有数字时，thousand 和 十位数之间，and不省略 45567 45 , 567 forty-five thousand five hundred and sixty-seven 小数点后面的数字按单个读 10 Presentation What’s the biggest desert in the world? It’s the Sahara.撒哈拉沙漠 [ sə'ha:rə ] How big is it? It's 9,600,000 square kilometers in size. 平方公里 面积 nine million six hundred thousand 11 Presentation Which is the deepest salt lake in the world? It’s the Caspian Sea.里海 [ 'kæspiən ] How