约6020字。

　　Module 4  Sandstorms in Asia
　　教学设计说明
　　话题介绍 本模块主题是”Sandstorms in Asia”, 亚洲的沙尘暴。
　　亚洲沙尘暴的发生频率，50年来已增加5倍，沙尘所挟带的污染物和有毒重金属，对环境和人体健康造成影响。沙尘暴转趋频繁，是全球自然灾害日增大趋势的一部分。
　　中国的沙尘暴发生频率在过去50年里增长5倍，上世纪50年代是5次、60年代是8次、70年代是14次、80年代是15次、90年代则达到24次。
　　沙尘暴引起高度关切的一个重要原因，是它在经过中国北部工业区上空时，会吸入铅等有毒重金属微粒。这种有毒沙尘会引发呼吸系统疾病，对老人和儿童甚至有致命危险。根据估计，沙尘暴每年造成的综合经济损失可达65亿美元。
　　Period 1 Reading INTRODUCTION Vocabulary and writing和READING AND VOCABULARY合并为第一课时”阅读课。”课文”Sandstorms in Asia”属说明文体，介绍了沙尘暴的特点、世界沙尘暴重灾区和中国面临的沙尘暴和荒漠化问题。    
　　Period 2 Grammar
　　课本24和36页合并为第二课时”语法课”，学习Infinitive和 but+ infinitive。
　　Period 3 FUNCTION 课本36页为”功能课”，学习如何Expressing strong opinions。
　　Period 4 Speaking 课本37页为 “口语课”，学习Talking about natural
　　disasters, 如sandstorms。
　　Period 5 Writing 课本38页为”写作课”，学习演练writing about environmental problems。
　　Period 6
　　CULTURAL CORNER 课本39页的CULTURE CORNER 是”文化阅读课”，The Green movement介绍欧洲各地为保护环境而开展的绿色运动。
　　Period 7 TASK 课本40页的TASK 是”任务课”，学习用英文Designing posters。
　　Part One  Teaching Design
　　第一部分 教学设计
　　Period 1   Reading—What Is a Tornado?…
　　■Goals
　　● To learn to read passages with the past perfect passive and indirect speech about tornadoes
　　● To learn to read with strategies
　　■Procedures
　　Step 1: Warming up by reviewing 21st century disasters
　　Hi, class. Nice to see you safe and sound.
　　Today we tap Module 3 The Violence of Nature.
　　Throughout history there have been sudden, terrible events that have shaken the world. Sometimes they are man-made, ranging from the infamous sinking of the Titanic to the deadly Chernobyl meltdown of 1986, while others are natural disasters, such as the catastrophic eruption of the island of or the devastating Tokyo earthquake of 1923.
　　Before we read What Is a Tornado?… let’s have a brief review of the 21st century disasters we have experienced so far.
　　2001 Gujarat Earthquaj, India (January 26, 2001)
　　European Heat Wave of 2003, Europe
　　Bam Earthquake, Iran (December 26, 2003)
　　Hurricane Ivan, Caribbean Sea, Southeastern United States (September, 2004)
　　2004 Indian Ocean earthquake and tsunami（海啸）, Indonesia, Sri Lanka, India, Thailand, and elsewhere (December 26, 2004) 186,983 killed, 42,883 missing
　　2005 Sumatran earthquake, Indonesia (March 28, 2005), at least 1,000 killed
　　2005 Maharashtra floods, Mumbai, Maharashtra, Western India (July 2005)
　　Hurricane Katrina, United States (August 2005), toll varies, 2,000 killed
　　2005 Kashmir earthquake, Kashmir, Pakistan, (October 8, 2005), death toll is currently 87,350 but some estimate it to rise over 100,000
　　2006 Southern Leyte mudslide（泥流）, Philippines, (17 February 2006) 950 killed.
　　May 2006 Java earthquake, Yogyakarta, Java, Indonesia (May 27, 2006), 6,200 killed
　　July 2006 Java earthquake, Java, Indonesia (July 17, 2006), 550 killed
　　Typhoon Saomai (2006), Zhejiang, China, (August, 2006), 250 killed
　　Warming up by defining tornado
　　A violent weather phenomenon in which a rotating column of air forms into a funnel cloud, often reaching the ground, causing severe damage.