Unit 7 Section A 1a- 2c 课件2022-2023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-2c Can you read these large numbers? hundred 百 thousand 千 million 百万 billion 十亿 trillion 万亿/兆 9,600,000 1,025 6,671 8,844.43 nine million 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 [ˈbɪljən] [ˈmɪljən] [ˈtrɪljən] [ˈθaʊznd] [ˈhʌndrəd] 844 eight hundred and forty-four Read large numbers one thousand one thousand and twenty-five six hundred thousand one million 1,000 1,025 600,000 1,000,000 169,800,450 million thousand one hundred and sixty-nine million Read large numbers eight hundred thousand four hundred and fifty The Sahara 9,600,000 square kilometers in size The Caspian 1,025 meters deep The Nile 6,671 kilometers long (Nine million six hundred thousand) (one thousand and twenty-five) (six thousand six hundred and seventy-one) Read large numbers 0 . 1 3 . 14 4 . 43 zero point one three point one four four point four three Qomolangma 8,844.43 meters high point (eight thousand eight hundred and forty-four point four three) Read small numbers Do you know these famous places in the world? Qomolangma the Nile the Caspian Sea the Sahara ['tʃəʊməʊˌlɑ:ŋmə] [sə'hɑ:rə] ['kæspiən] [naɪl] 珠穆朗玛峰是世界海拔最高的山峰，高度为8844.43米。 Qomolangma Name Qomolangma Height 8,844.43 meters high Where In China the Nile 尼罗河长6671千米，是世界上最长的河流。 Who The River Nile What 6,671 kilometers long Where In Africa the Caspian Sea 里海虽称海，但却是一个巨大的内陆咸水湖，是世界上最大的湖泊。 Name Caspian Sea Depth 1,025 meters deep Where Between Asia and Europe the Sahara 撒哈拉沙漠形成于约250万年前，是世界上最大的沙质荒漠。 Name The Sahara Desert Size 9,600,000 square kilometers Where In North Africa Qomolangma about 9,000,000 square kilometers in size The Sahara 1,025 meters deep The Caspian Sea 6,671 kilometers long The Nile 8,848.86 meters high 1a Match the facts you know. 1b Listen and complete the sentences. 1. Qomolangma is ______ than any other mountain in the world.