Unit6Naturaldisasters.doc

Unit 6 Natural disasters 第一课时备课时间：2012年12月 日 授课时间：教学目标: 1通过漫画引出自然灾害的话题。2初步接触过去进行时。3了解几种常见自然灾害的英文名称。教学内容: 四会内容 词汇：natural accident wash village rainstorm thunder hall 词组：start to rain kill thousands of people lose the game a car accident start a big fire其他内容词汇：disaster mop词组：mop all the water up教学重点: 初步接触过去进行时。难点突破: 初步了解一般现在时的用法。教学准备1录音机。2一些自然灾害的图片。教学步骤Step I导入1 Whats the weather like today?2请学生回答问题。复习有关天气的单词rain，snow, wind等。Step II呈现1 Hobo has some troubleWhats happened to him? Lets have a look让学生阅读漫画，教师就每幅漫画问一些开放性的问题。如： (1)Whats the weather like?(Its raining) (2)What happened to Hobo?(He got wet) (3)What was Hobo doing when it started to rain?(He was sleeping) (4)When did Hobo hear the rain?(Half an hour later)(5)What happened to Hobos house?(The floor was all wet) (6)Why doesnt he want to go home alone? (He needs Eddie to mop all the water up)2播放课本第92页漫画部分录音，学生跟读。3请学生看第2幅漫画，向学生解释was sleeping的用法，引入过去进行时的概念。4学生跟录音朗读对话，练习表演对话。请一至两组学生为全班表演对话。鼓励学生大胆创新。Step III呈现1问学生：What words do we use to talk about bad weather?从而引出rainstorm，snowstorm，typhoon等新单词。让学生完成课本第93页B部分练习，集体核对答案并带领学生朗读。使学生明白：Bad weather can sometimes cause natural disasters2出示其他自然灾害的图片，向学生介绍这些自然灾害的英文名称以及基本特点，带领学生朗读，纠正部分学生的读音。以下列出几种不同的自然灾害名称及特点，可以根据学生实际水平决定补充部分或全部内容： (1)earthquake(a sudden violent movement of the earths surface) (2)flood(a large amount of water covering an area that is usually dry) (3)drought(a long period without rain) (4)hurricane(a violent storm with very strong winds) (5)hailstones(small balls of ice that fall from the sky like rain) (6)landslide(the sudden fall of a mass of earth，rocks，etcdown the side of a mountain) (7)volcano eruption(a violent outburst of lava，cinders，steam and gases through an opening in the earths surface)3请学生看课本第93页B部分的几幅插图，让学生用过去进行时造句。 (1)The boy was walking home when the typhoon came (2)The girl was doing homework in her bedroom when the thunder and lightning came (3)A man and a woman were walking in the water (4)People were having dinner at home when the snowstorm came 以上句子只是参考答案，鼓励学生发挥想像，对于新颖且合理的答案要予以肯定和表扬。Step IV活动1引导学生思考这些自然灾害的共同特点，使学生明白：They are all caused带领学生朗读。引导学生总结出：Accidents are usually caused by people2 Can you tell the difference between natural disasters and accidents now?Here are some newspaper headlinesPlease discuss with your classmates to findout which ones are natural disasters请学生和同伴讨论第93页A部分的新闻标题，判断哪些是自然灾害。3集体核对答案，然后带领学生朗读。4把学生分成四人小组，每个组分发一份刊登有事故或灾难新闻的报纸，要求学生用英文写出有关事故或灾难的新闻标题，写完后在小组内互相讨论，核对答案。教师用多媒体显示一些可能用到的词汇，以帮助学生完成任务。如：瓦斯爆炸：gas explosion 龙卷风：tornado在学生小组讨论时，教师要来回巡查，解决可能出现的问题。5随机抽取一些学生朗读他