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关键词：小学英语；教材；内容；扩展
中图分类号：G623.31文献标识码：A文章编号：1009-010X（2008）07/08-0100-01
Step 1. Lead in
T： Where do you live？
S： I live in….
T： How do you go to school？
S：By bus.（By bike. By car… ）
【设计意图】在这一环节中，复习有关交通工具的词汇，为下一步的学习做好充分的准备。
Step 2. Presentation
1.教学单词airplane（plane），train， fast， slow。
T： （屏幕出示一幅图片）Look， this is my friend Cathy. She wants to go on a trip to Canada. How can she go there？ By bus？
S： No.
T： Canada is far from China. A bus is slow. （板书并领读）She can go there by airplane. （拿出飞机单词卡片贴在黑板上，教学airplane（plane）， 向学生介绍飞机的两种写法）
An airplane is fast. （板书并领读）
T： I want to go to Beijing on this Children’s Day. Can I go there by bus？
S： No.
T： How can I go there？
S： By car.
T： But I don’t have a car.
S： By airplane.
T： Oh. The airplane is fast， but I don’t have enough money. I think I can go there by train. The train is faster than the bus， and cheaper than the airplane. The train is just right for me.
2.教学句型__________ is faster than._______is slower than_________.
T： Which one is fast？ Which one is slow？ （CAI课件出示飞机和火车图片）
S： An airplane is fast. A train is slow.
T： Yes. An airplane is faster than a train. A train is slower than an airplane.
T： Look， which one is faster？ Which one is slower？（出示火车和公共汽车图片）
S： A train is faster than a bus. A bus is slower than a train.
Step 3. Practice
1.出示飞机、火车、公共汽车等有关交通工具的每对图片，让学生说出图片要表达的内容。
Eg： A train is _________ than a bus but__________ than an airplane.
2.多媒体展示自行车和大卡车，出租车和飞机，小鸡和兔子，刘翔和Miss Cui等等图片，学生对比，运用句型_________is faster（slower） than___________.
Eg： A bicycle is slower than a truck. A truck is faster than a bicycle.
A cab is slower than an airplane. An airplane is faster than a cab.
The chicken is slower than the rabbit. The rabbit is faster than the chicken.
Liu Xiang is faster than Miss Cui. Miss Cui is slower than Liu Xiang.
【设计意图】借助多媒体和图片出示不同的交通工具，有趣的动物形象，卡通人物，鼓励学生模仿说句子，激发学生敢于表达所学句型。
3.Student book：
T： We know Li Ming wants to go on a trip to Beijing. How do Li Ming and his mother go to Beijing？ Let’s listen to the audiotape and try to find the answers.
Step 4. Consolidation
Demonstrate a dialogue with a volunteer.
T： Boys and girls， Children’s Day is coming. Where do you want to go ？ How do you go there？ Talk about it with your friends. Here are some places and vehicles for you.
（黑板上为学生提供地点和各种交通工具的词，幻灯片为学生呈现创编对话时所需要的句型）
Children’s Day is coming. I want to go on a trip. Let’s go to ________by_________. I want to take a__________.__________is faster than________._________is slower than_________.
【设计意图】通过创设真实的语言情境来检验学生能否准确地运用本课所学句型。
Step 5. Class Closing
Homework：让学生去调查身边的人或事物，写一写________is faster /slower than_________.
教学反思：
本节课是一节典型的关于比较级的语法课。小学阶段的语法教学应体现隐性语法教学原则，作为教师不应为学生直接讲解语言中出现的语法概念，而是应通过创设的语言情境，让学生在活动中去感悟、理解出现的语法现象，从而掌握所学的语法知识。本节课，通过创设真实的语言情景，为学生呈现公共汽车、飞机和火车的图片，教学比较级句型__________is faster than_________.___________is slower than_______. 所以教师又充分利用了儿童节即将到来这一真实情景，为学生提供了学习英语和用英语交流的语言环境。通过本课的学习，学生可以较好地掌握所学单词和句型，并能积极主动地加以运用，达到了预期的教学目标。
中图分类号：G623.31文献标识码：A文章编号：1009-010X（2008）07/08-0100-01
Step 1. Lead in
T： Where do you live？
S： I live in….
T： How do you go to school？
S：By bus.（By bike. By car… ）
【设计意图】在这一环节中，复习有关交通工具的词汇，为下一步的学习做好充分的准备。
Step 2. Presentation
1.教学单词airplane（plane），train， fast， slow。
T： （屏幕出示一幅图片）Look， this is my friend Cathy. She wants to go on a trip to Canada. How can she go there？ By bus？
S： No.
T： Canada is far from China. A bus is slow. （板书并领读）She can go there by airplane. （拿出飞机单词卡片贴在黑板上，教学airplane（plane）， 向学生介绍飞机的两种写法）
An airplane is fast. （板书并领读）
T： I want to go to Beijing on this Children’s Day. Can I go there by bus？
S： No.
T： How can I go there？
S： By car.
T： But I don’t have a car.
S： By airplane.
T： Oh. The airplane is fast， but I don’t have enough money. I think I can go there by train. The train is faster than the bus， and cheaper than the airplane. The train is just right for me.
2.教学句型__________ is faster than._______is slower than_________.
T： Which one is fast？ Which one is slow？ （CAI课件出示飞机和火车图片）
S： An airplane is fast. A train is slow.
T： Yes. An airplane is faster than a train. A train is slower than an airplane.
T： Look， which one is faster？ Which one is slower？（出示火车和公共汽车图片）
S： A train is faster than a bus. A bus is slower than a train.
Step 3. Practice
1.出示飞机、火车、公共汽车等有关交通工具的每对图片，让学生说出图片要表达的内容。
Eg： A train is _________ than a bus but__________ than an airplane.
2.多媒体展示自行车和大卡车，出租车和飞机，小鸡和兔子，刘翔和Miss Cui等等图片，学生对比，运用句型_________is faster（slower） than___________.
Eg： A bicycle is slower than a truck. A truck is faster than a bicycle.
A cab is slower than an airplane. An airplane is faster than a cab.
The chicken is slower than the rabbit. The rabbit is faster than the chicken.
Liu Xiang is faster than Miss Cui. Miss Cui is slower than Liu Xiang.
【设计意图】借助多媒体和图片出示不同的交通工具，有趣的动物形象，卡通人物，鼓励学生模仿说句子，激发学生敢于表达所学句型。
3.Student book：
T： We know Li Ming wants to go on a trip to Beijing. How do Li Ming and his mother go to Beijing？ Let’s listen to the audiotape and try to find the answers.
Step 4. Consolidation
Demonstrate a dialogue with a volunteer.
T： Boys and girls， Children’s Day is coming. Where do you want to go ？ How do you go there？ Talk about it with your friends. Here are some places and vehicles for you.
（黑板上为学生提供地点和各种交通工具的词，幻灯片为学生呈现创编对话时所需要的句型）
Children’s Day is coming. I want to go on a trip. Let’s go to ________by_________. I want to take a__________.__________is faster than________._________is slower than_________.
【设计意图】通过创设真实的语言情境来检验学生能否准确地运用本课所学句型。
Step 5. Class Closing
Homework：让学生去调查身边的人或事物，写一写________is faster /slower than_________.
教学反思：
本节课是一节典型的关于比较级的语法课。小学阶段的语法教学应体现隐性语法教学原则，作为教师不应为学生直接讲解语言中出现的语法概念，而是应通过创设的语言情境，让学生在活动中去感悟、理解出现的语法现象，从而掌握所学的语法知识。本节课，通过创设真实的语言情景，为学生呈现公共汽车、飞机和火车的图片，教学比较级句型__________is faster than_________.___________is slower than_______. 所以教师又充分利用了儿童节即将到来这一真实情景，为学生提供了学习英语和用英语交流的语言环境。通过本课的学习，学生可以较好地掌握所学单词和句型，并能积极主动地加以运用，达到了预期的教学目标。