Unit 7 Section APeriod 1 (1a-1c)What’s the highest mountain in the world?Unit 7 What’s the highest mountain in the world?Unit 7 What’s the highest mountain in the world?What’s the highest mountain in the world?Unit 7 What’s the highest mountain in the world?Unit 7 What’s the highest mountain in the world?Unit 7 ObjectivesTo learn to compare facts 比较事物To learn to express large numbers 表达大的数目To learn to talk about geography and nature 谈论地理、自然To learn new wordsmountaindesertriverlakesalt lakefresh lakeWarming upThe top of the world.世界之最QomolangmaWhat's the highest mountain in the world?[?t??um?u?lɑ:?m?]珠穆朗玛the SaharaWhat's the biggest desert in the world?[s?'hɑ:r?]撒哈拉 the Caspian SeaWhat's the deepest salt lake in the world?[?k?spi?n] 里海the NileWhat's the longest river in the world?尼河[nail] 1,025 6,671 8,844.439,600,000one thousand and twenty fiveeight thousand eight hundred and fourty-four point four threesix thoudsand six hundred and seventy-onenine million百万 six hundred thousandCan you read the numbers ?What do you know about the numbers?英文数字中的第四位，第七位，第十位数是很关键的数位。大数字每三位数用逗号隔开， |
