Module 3 Unit 5 Save the endangered animals (Writing) 教案

U5Writing Endangered Animals教学案例
案例背景：
1. 教材分析：《牛津英语》八年级下册第五单元U5Writing Endangered Animals以“关注濒危动物”为话题，以保护濒危动物为主线。学生在阅读（Reading）板块阅读一篇关于大熊猫的文章，介绍了熊猫的外貌特征，饮食习惯，行为习性，寿命，现状以及未来。在Writing的写作板块，学生学习了介绍亚洲象的写法：外貌特征，饮食习惯，行为习性，寿命，现状以及未来。
2. 学情分析：初二2班学生的总体学习能力较好，对英语的学习还是比较感兴趣。成绩中上的同学思维活跃，勇于发言，课堂气氛活跃。优生们语言表达能力较好，创造力强。不过，2班的潜能生较多，基础薄弱，学习习惯一般，课堂上偶尔会开小差。2班的学生小组合作学习活动开展得一般，有些小组长组织协调能力不强，部分潜能生不是十分积极参与。但2班学生集体荣誉感强，竞争意识好，如果进行分组比赛，老师积极引导，学生们还是非常乐意完成任务。
案例主题：
本节课是一节写作复习课，用《学评》上的一篇介绍北极熊的文章引入，总结介绍濒危
片段分析：
片段一
Teacher： Polar bears are lovely, but they are in danger. Please read a passage about Polar bears and answer the following questions. Remember to tell me on which the line you can find the answer. I will give you 7 minutes.
Students finish the exercises by themselves.
Polar bears
Polar bears are very big white bears.
Home
Polar bears live in the snow and ice near the North Pole(北极). There are no polar bears at the South Pole. At the North Pole, there is only snow, ice and water. There is not any land. People cannot see polar bears in the snow very well because their coats are yellow-white. They have very warm coats because the weather is cold in the north of the Arctic Circle.
Appearance
Polar bears have long face and small, round ears. Polar bears are three meters long, and they weigh about 450 kilos. They can stand up on their back legs because they have very wide feet. They can use their front legs like arms. A female polar bear gives birth to one to four cubs at a time in the winter and the cubs stay with their mother for up to three years.
Behaviour
Polar bears are usually shy. They go into the sea when they are afraid. However, they are known to be dangerous when attacked. Polar bears can swim very well. They can swim 120 kilometers out into the water. They catch fish and sea animals for food.
Life
Polar bears can live for about 25 years in the wild, but in zoos they can live for up to 35 years.
The future
Polar bears are endangered because some people want to kill them for their beautiful white coat. The number of polar bears declined(减少) from several hundredthousand to a few hundred in a few years. People do not want all of these beautifulanimals to die. To protect them, the governments of the United States and Russia saythat no one is allowed to kill polar bears now.
1.Where do polar bears live?
___________________________________________________________(L_______)
2.What do polar bears look like?
___________________________________________________________(L_______)
3. What are polar bears good at?
___________________________________________________________(L_______)
4.How long can polar bears live in the wild?
___________________________________________________________(L_______)
5. Why are polar bears endangered?
__________________________________________________________(L_______)
This passage talks about polar bears in 5 aspects(方面). What are they?
Teacher：Now time is up. Anyone can tell me your answer to question 1?
Student A: On Line3: Polar bears live in the snow and ice near the North Pole(北极).
Teacher: Very good. What about question 2?
Student B: Polar bears have long face and small, round ears on Line 9 .Teacher: Thank you. Can we find more information about Polar bears’ appearance, for example about their weight?
Students: On Line 10 :Polar bears are three meters long, and they weigh about 450 kilos.
Teacher: Excellent. When we describe a kind of endangered animals, we can also talk about their weight. OK, what about question 3?
......
Teacher: Let’s look at question 6. This passage talks about polar bears in aspects(方面). What are they?
Student C : Home, appearance, behaviour, life, and the future.
Teacher: Wonderful. Where can you find the answers?
Student C : From the sub-headings on the passage.
Teacher: Good. When we introduce a kind of endangered animals, we can talk about their home,appearance, behaviour, life, and the future.
片段二
Teacher asked the students to sum up the structure, phrases and sentence patterns by using the mind map
片段三
Writing--- South China tigers
请根据以下提示， 写一篇文章介绍华南虎。要求：80词左右，可适当发挥。
居住地
中国南方的森林和山区
外形
身长：大约 2.2-2.65 米; 体重：大约 110-175kg
习性
单独居住,擅长奔跑,喜欢吃肉
寿命
约22 年
现状及前景
濒临灭绝, 因为人类过度捕杀和砍伐森林
你的建议
1---2点
提示词：中国南方的森林和山区forest and mountains of Southern China 重 weigh
Step1 审题
本篇作文是介绍华南虎，时态_________，人称第________人称_______数，内容要点_________个。
Teacher: You will have one minute to read the Chinese information and then let’s finish step 1. OK, time is up. This passage introduces South China Tigers, what kind of tense should we use?
Students: 一般现在时。 Simple present tense.
Teacher: What about the person and the points?
Students: 第三人称复数，内容要点6个。
Teacher：Good. The third person Plural form. And there are 6 points.
Step 2 --- Group work:
Teacher: Please talk about the South China Tigers in your group. Different students have different task. You can follow the form below.
居住地
中国南方的森林和山区
B
外形
身长：大约 2.2-2.65 米; 体重：大约 110-175kg
B
习性
单独居住,擅长奔跑,喜欢吃肉
C
寿命
约22 年
D
现状及前景
濒临灭绝, 因为人类过度捕杀和砍伐森林
A
你的建议
1---2点
A
Teacher: You can begin like this: Let me tell you something about South China tigers…You can use this mind-map to help you! And you will have five minutes to work in your group.
Now time is up. Show time! Let’s welcome group 4.
Student B : Let me tell you something about South China tigers.South China tigers live in the forests and mountains of Southern China. They are about 2.2-2.65 meters long and weigh about 110-175 kilograms.
Student C :They like to eat meat. They like living on their own. And they are good at running.
Student D: They can live for up to about 22 years.
Student A :However, they are one of the most endangered animals in China. They are in danger because people are killing them and cutting down a lot of trees. Its cruel of them to do like that. So we should protect South China tigers.Here are my suggestions. For one thing, we should stop people killing them. For another, we can plant more trees so that the tigers will have more beautiful living environment.
Students: Let’s take actions to protect them!
Step 3 Writing
South China Tigers
Now let me tell you something about the South China Tigers.
____________________________________________________
____________________________________________________
Teacher: Please write the passage by yourself. Remember to use the important phrase and sentence patterns in the mind map to help you.
片段四：学生习作现场点评。
South China Tigers
Now let me tell you something about the South China Tigers. South China Tigers
live in forests and mountains of Southern China. They are 2.2 to 2.65 meters long and they weight about 110 to 175 kilograms. These tigers like to live on their own and they are good at running, they can even run faster than people. They catch some animals for food, because they are very like eating meat. The South China Tigers can live for about 22 years in the wild.
These tigers are endangered because people are killing them and cutting the forests. It is cruel of them to do so. It’s important for us to plant more trees to protect them.
Let’s protect them together!
Teacher: Any mistake? How to Improve?
Students: …because they are very like eating meat. We should say: they like eating meat very much.
Teacher: How many points can he get?
Students: 4+3.5+1.5=9
（四）案例反思
1.整节课的教学环节设计流畅：游戏热身---阅读输入---学生小结---口头输出---笔头输出---点评和小结。输入部分，本人选择了符合本单元Endangered Animals 话题的一篇文章，介绍了濒临危险的北极熊。文章出自于《学评》的68页，而本节课写作的输出要求是描写濒危动物的居住地，外形，习性，寿命，现状和未来，所以本人在《学评》文章的基础上，加上了相应的小标题：Home、Appearance、Behaviour、Life and future. 学评本身的篇章配套练习是选择题，考虑到本节课是写作课，本人就把问题设计为问答题，让学生动笔把答案写下来，同时强化了输出的词汇和句型。
2. 本节课是写作复习课，学生之前已经学习过介绍大熊猫和亚洲象，有一定的基础。再加上本人选择的阅读输入篇章，无论是从文章的内容，还是文章的结构，文章所用的词汇都贴近学生的认知水平，所以学生在片段二的小结环节完成得非常好。学生们能从输入的北极熊的文章中总结出介绍濒危动物的要素：居住地，外形，习性，寿命，现状和未来。而且学生能从文章中提炼词汇和句型，如：live in ...; people can find... in ...。经过此小结的环节，学生对于所学的内容有了更深刻的认识和提升，为学生下一步的口头输出和笔头输出做了成熟的铺垫。
3.在学生开始写作前，本人设计了口头输出环节。根据2班的学情，部分潜能生独立写作还是有一定的困难，无论是谋篇布局还是遣词造句。因此，本人先让学生在小组里面合作口头介绍东北虎。既可以让优生带动潜能生的学习积极性，又可以让优生辅导潜能生，同时对优生对英语能力和组织协调能力也是一种促进。再加上有了片段二小结环节的帮助，学生能成功完成口头输出，为下一环节的笔头输出作了很好的铺垫。
4. 在笔头输出环节，本人巡堂时发现：1. 学生们普遍动笔很快，无论是词汇、句型，还是整体的谋篇布局，学生都掌握得很好。2. 潜能生们在上一环节口头输出小组成员的帮助下，学习到了不少词汇和句型，对于此话题的写作有一定信心，能动笔写下不少句子。3. 被抽到现场点评的同学，平时作文得分大概在8分左右。今天经过次节课的一系列练习，明显看出该同学谋篇布局非常合理，能使用准确的词汇，精彩的句型，语法错误也明显减少，拿到了9分，确实是一大进步。
5. 不足之处：听了专家点评后，本人发现在处理教材内容时不够严谨，主要体现在输入的篇章---Polar Bears的处理上。本人从《学评》找到了符合本节课话题的篇章后，基本原文使用，只是略做小修改：加了小标题。加小标题的目的是为了让文章的脉络更加清晰，让学生快速掌握从哪几方面介绍濒危动物。但加了小标题后，本人没有再仔细核对每个句子的内容是否和小标题的主旨吻合，以至于有些句子和小标题的主旨不相关联，导致文章逻辑不够严密。以后在选材，处理教材方面需要更严谨、细致，争取呈现给学生的所有材料都是科学合理的。
6. 针对本节课的修改：针对第5点的不足，课后本人修改输入的篇章---Polar Bears，力求内容与小标题主旨吻合，文章逻辑更加严密。修改如下，括号内的句子为删除部分，划线句子为修改整合部分。
Polar bears
Polar bears are very big white bears.
Home
Polar bears live in the snow and ice near the North Pole(北极). There are no polar bears at the South Pole. At the North Pole, there is only snow, ice and water. There is not any land. (People cannot see polar bears in the snow very well because their coats are yellow-white. They have very warm coats because the weather is cold in the north of the Arctic Circle.)
Appearance
Polar bears have long face and small, round ears. Polar bears are three meters long, and they weigh about 450 kilos. They can stand up on their back legs because they have very wide feet. They can use their front legs like arms. People cannot see polar bears in the snow very well because their coats are yellow-white. They have very warm coats because the weather is cold in the north of the Arctic Circle.
(A female polar bear gives birth to one to four cubs at a time in the winter and the cubs stay with their mother for up to three years.)
Behaviour
Polar bears are usually shy. They go into the sea when they are afraid. However, they are known to be dangerous when attacked. Polar bears can swim very well. They can swim 120 kilometers out into the water. They catch fish and sea animals for food.
Life
Polar bears can live for about 25 years in the wild, but in zoos they can live for up to 35 years.
The future
Polar bears are endangered because some people want to kill them for their beautiful white coat. The number of polar bears declined(减少) from several hundredthousand to a few hundred in a few years. People do not want all of these beautifulanimals to die. To protect them, the governments of the United States and Russia saythat no one is allowed to kill polar bears now.
课后的完善与提升：本节课是写作课，本人把输入篇章的配套练习选择题改为了问答题，如能把练习设计为阅读填空，让学生完成填空后，整个填空练习就是一篇介绍北极熊的小短文，这样对学生后面篇章的输出的框架会有更形象、直观的帮助，同时还能强化重点词汇和句型。设想如下：
Polar Bears
Polar bears live in the snow and ice near the North Pole.Polar bears have long face and small, round ears. Polar bears are three meters long, and they weigh about 450 kilos.They are good at swimming. They catch fish and sea animals for food.
Polar bears can live for about 25 years in the wild, butin zoos they can live for up to 35 years.
Polar bears are endangered, because some people want to kill them for their beautiful white coat. To protect them, the governments of the United States and Russia saythat no one is allowed to kill polar bears now.