说 课 稿
英语组 张 梅 2012.3
今天我说课的内容是必修三第四模块的Reading and vocabulary部分。 一、说教材
1. 选择的理由
这学期我们的课题是《提高高中英语词汇教学有效性研究》，所以我选择的说课内容是Reading and vocabulary部分。众所周知，词汇知识与阅读理解相辅相成，相互促进。阅读是学习词汇的重要途径之一，学生通过阅读扩大词汇量，加深对词汇的理解和认识，同时促进阅读理解能力的提高。 2. 教材教学内容分析
本模块介绍了亚洲尤其是在中国发生沙尘暴的情况，并引入了与沙尘暴和环保有关的词汇，目的在于在活动中发展学生语言能力，同时培养其环保意识。
环保是现在各级各类考试经常涉及的一个话题，所以帮助学生了解环保知识，掌握相关的词汇就显得尤为重要了。 3. 教学目标：
知识目标：了解沙尘暴方面的知识并掌握相关词汇：
disaster, dune, citizen, dust, desertification, forecast, strength, cycle,
mask, process, mass, campaign
技能目标：高中英语课程标准强调用英语获取和处理信息的能力 1).能从文章中获取主要信息并摘录要点 2).能理解文章主旨、作者意图
3).能提取、筛选和重组文章中的信息
情感目标：通过本节课的学习，使学生认识到保护环境迫在眉睫，从而提高环保
意识。
4．教学重难点
重点：1)掌握常用易考的词汇和短语：frighten, mass, process, strength, be caught
in,advise sb to do, prevent sth/ sb (from) doing
2) 阅读技巧的训练
难点：1. 掌握课文的主旨大意，整理出关于课文结构的主要信息。 2. 运用所学的词汇和短语，围绕主题进行讨论。
二、说学生
1. 学生已有的认知水平和能力状况
在前面一个模块的学习中，学生已经掌握了一些介绍自然灾害的词语和句子，所以表达能力好的同学可以简单用英语描述沙尘暴的基本情况。 2. 学生存在的问题
1) 学生英语基础较差，词汇量偏小而且害怕出错，所以主动运用语言的能力受到限制。
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2) 虽然大多数学生有较强的环保意识，对沙尘暴这一话题可能会比较感兴趣，但由于没有亲身经历过沙尘暴，多数学生欠缺相关知识，并缺乏对其描述所需的词汇。 三、说教学策略
1、指导学生主动探究，合作交流。
通过设计包含自主预习、课堂练习和家庭作业三部分的学案，指导学生改进学习方式，由被动的接受知识变为主动的探究新知，并学会与他人交流和分享. 2、创设英语学习的教学情境。
利用图片、视频等去创造直观的教学情境，让学生身临其境，激发学生学习兴趣，提高学生参与教学活动的主动性。 四、说教学思路
本节课是一节课题探讨课，目的是要探讨如何利用阅读文本在读前、读中、读后环节开展有效的词汇教学。这节课的基本思路是：
1. 阅读前的词汇教学活动-----扫除阅读障碍。
主要方式：学生借助学案预习，初步认知目标词汇。 2. 阅读中的词汇教学活动-----有效呈现核心词汇。
主要方式：巧妙设计问题，在问与答之中多次呈现和反复使用核心词汇。 3. 阅读后的词汇教学活动-----应用和巩固重点词汇。
主要方式：复述课文和课外阅读同一话题的若干篇文章。
五、说教学程序
Step 1 Revision and lead-in:
Get the students to list the natural disasters they have known.
T: In last module we’ve mentioned a lot of natural disasters. Can you list some of them? S: Tornado, hurricane, earthquake, thunderstorm, flood, drought, etc.
T: In module 3, we mainly talked about tornadoes and hurricanes. Today we are going to focus on another disaster. Now watch a video clip and answer the question: What disaster is happening?
T: How much do you know about sandstorms? Step 2 Vocabulary and speaking
Show some pictures on the screen and get the students to describe them.
T: We’ve known something about sandstorms from newspapers and TV programs. Now I am going to show you some pictures related to it. You may use the words you know or the words on the screen to describe these pictures. Look at the first picture. Can you describe it? (grassland and forest)
S: (open answers) the adjectives they may use: green, beautiful, vast, fantastic, etc.
T: Are they beautiful? Of course they are, but as the time went on, something unfortunate happened. People began destroying the plain. Look at these pictures and say something about them. You may use the words given on the screen.(words: desertification, cut, dig) S: possible answers: some of the land became deserts. Sandstorms appear to have increased as a result of desertification. Climate changed. People cut down trees and dig up grass.
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T: As a result, these beautiful grassland and forest became deserts. When strong wind blows, a sandstorm may occur. Can you describe what the weather is like? Use the words to make up sentences. (words: frightening, orange sky, strong wind, thick, brown-yellow) S: possible answers: The sky is orange in sandstorms. The wind is strong. The city is covered in a thick, brown-yellow dust. T: How do the sandstorms affect people’s life?
S: possible answers: traffic is slow because the thick dust makes it difficult to see. It’s dirty everywhere. Cycling in a sandstorm is frightening. It’s difficult to breathe. It delays the flights. It spread illnesses.
设计意图：让学生通过练习理解课文中一些新单词的含义。 Step3 Pre-reading
T: Just now, we have seen many pictures related to sandstorms, do you want to know what the text will tell us? Now Read the title and look at the photo. Get the students to predict what the article will talk about.
设计意图：让学生根据标题和插图来预测课文内容，以此来培养学生积极思考的习
惯，并使阅读更有目的性。
Step 4 While-reading a. Skimming and scanning
Read the passage quickly and try to summerize the main idea of each paragraph by using one word.
设计意图：培养学生快速阅读,概括大意的能力。 b. Careful reading
Read the passage again and fill in the table. Sandstorms in Asia Causes Sandstorms, begin in _____and appear to have increased in recent years as a result of _____. It is a process that happens when land becomes desert because of _____and because people ______ and _______. Effect Citizens wake up to a(n) ____sky and strong wind that covers the city in a thick _________. The sandstorms sometimes _____all day and affect traffic. Measures A ____ has been started in China The government has already planted over _____trees and plans to continue planting for the next ____years. Advice Experts advise people _____ If you want to go out, you’d better wear a ______. 设计意图：通过阅读学习描述沙尘暴的起因、影响、建议、措施等的词汇和短语。让
学生动手写在学案上能加深印象。
Step 5. Post-reading
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1. Read the text again and complete the following sentences
1. The winds in a sandstorm can sometimes___________________________________ 2. When Ren jianbo was living in Inner Mongolia ______________________________ 3. Sandstorms in China appear to have increased _______________________________ 4. Cutting down trees and digging up grass can_________________________________ 5. Traffic moved slowly because ____________________________________________ 6. The government is planting trees to the west of Beijing to_______________________ 2. Complete the article with one word in each blank
Sandstorms have been a major d_______ for many Asian countries for centuries. They are strong, dry winds carrying s________. They are often so thick that you c_______ see the sun, and the wind is sometimes _______ enough to move sand dunes. Sandstorms sometimes a_______ / s________ / h_____ Beijing. C______ wake up to an orange sky and strong winds. The storms sometimes c________ all day and traffic moves very slowly. The Chinese Central Weather Station is able to f_______ a sandstorm some weeks before it arrives in Beijing, but its s________ sometimes surprises people. The d______ is only 250 kilometers away to the west of Beijing. To p__________ it coming nearer, the government is planting trees.
设计意图：通过完成与文章主要内容有关的句子和短文，应用和巩固重点词汇。 3. Discussion
T: From what we learned in the text and the knowledge we already have, we know that sandstorms bring us so much trouble. So scientists in the world are trying their best to find ways to prevent them. Now, suppose all of you are environmental experts and now you are discussing how to solve this problem. In group of four, discuss the ways and reasons to support your ideas.
Conclusion: Spring is coming, and sandstorms are coming, too. So we must join up and
take measures to protect our environment and live happily.
设计意图：通过讨论，增强学生的环保意识。 Step 6 Homework:
1. Revise the text. 2. Reading comprehension 板书设计：
Module4 Sandstorms in Asia Para. 1 introduction Para. 2 features Para. 3 causes Para. 4 effect Para. 5 advice Para. 6 measures
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