高中英语(Module 4 Sandstorms in Asia)课件4 外研版必修3 课件VIP免费

Module 4 Sandstorms in AsiaLearning Goals:1. Learn some words and their usages in this module.2. Learn to write a short passage about environment.一 . 【学情调查，情境导入】1、 n. 主修科目 v. 主修 a. 主修的 , 主要的2、因此，结果3、保护 v. n. 4、持续了 10 小时5、突然遭遇 (恶劣天气等 )6、砍伐（树木） 7、如此……以至于 8、阻止某人做某事majormajorprotectprotectprotectionprotectionlastlast (for) 10 hours(for) 10 hoursbe caught inbe caught incut down (trees) cut down (trees) soso……thatthatprevent sb. from doing sth. prevent sb. from doing sth. as a resultas a resultDisasters of Nature ：• 沙尘暴，• 龙卷风，• 飓风 , • 台风，• 地震，• 海啸，• 洪水，• 闪电 , • 雷暴，• 火山喷发sandstorm, tornado, hurricane,typhoon, earthquake, tidal wave / tsunami flood,lightning, thunderstorm,volcanic eruption沙尘暴形成有三个要素：即强风、沙源和不稳定的空气 。除上述三大因素之外，人类生产活动等因素对沙尘暴的形成也很重要。如人为破坏植被、工矿交通建设、大规模施工等对地表的破坏，为沙尘暴发生发展提供了细沙和尘土。 Central AsiaNorth AmericaCentral AfricaAustraliaAustralia二 . 【问题展示，合作探究】 Sandstorms have been a _____ disaster for many Asian countries. They are ___ frightening _____ a person who has _______ one thinks that to have ____ ______ __ it is a terrible experience. Now people ___ ____ more trees and dig up more grass. ________, sandstorms appear to have increased in recent years. To ______ the situation becoming worse, the government is planting more trees.majormajorsothatthatsurvivedsurvivedbeen caught inbeen caught incut downcut downAs a resultAs a resultpreventpreventprevent, major, be caught in, surviveso---that--, cut down, as a result, She said she would come to see me She said she would come to see me ____________________.____________________.她说，要是没...