英语选择性必修 第二册Unit 5 A delicate world精品教学设计

Understanding ideas板块教学设计

（建议时长30–35分钟，教师可根据教学实际酌情调整。）

课型

Reading

主题语境

人与自然——保护我们脆弱的星球

内容分析

本板块呈现了一篇反映单元主题的课文，语篇类型为记叙文。作者根据自己的工作体验讲述了麦夸里岛的生态系统从遭遇严重破坏到逐步恢复的过程。读前的导入活动请学生看图片，设想把猫、老鼠和兔子引入到这样的环境中会引发什么变化，旨在帮助学生提前熟悉话题，为学习课文做铺垫。读中活动考查学生对课文整体内容的理解。读后活动包括分析作者的写作目的、理解课文细节信息和回答开放性问题等活动，启发学生深入思考，积极探究主题意义。

教学目标

在本板块学习结束时，学生能够：

1. 通过快速阅读文章，了解麦夸里岛发生的事情；
2. 读懂语篇，找出作者的写作目的并说出理由；
3. 分析人类对麦夸里岛的介入行为、目的意图及造成的后果，并使用思维导图呈现重要信息，提高学习效率；
4. 通过思考开放性问题，提升思辨能力。

教学重点

引导学生读懂语篇，找出作者的写作目的，理解人类为拯救麦夸里岛所做的各种行为。

教学难点

引导学生分析人类对麦夸里岛的介入行为、目的意图及造成的后果，加深对主题意义的认识。

教学策略

P-W-P模式

Teaching contents

Procedures

Purposes

Teacher’s activity

Students’ activity

Activity 1

1. Teacher asks students to look at the picture and think about the questions.
2. Teacher divides the class into groups to have discussions about the questions.
3. Teacher chooses one or two groups to share their results with the class.

1. Students look at the picture and think about the questions individually.
2. Students work in groups and discuss the questions.
3. One or two groups present their results to the class.

1. To let students understand invasive species can damage the local ecosystems.
2. To arouse the students’ curiosity about the topic.

Activity 2

1. Teacher asks students to look at the title and predict what the passage  mainly talks about.
2. Teacher asks students to read the passage and find out what happened to Macquarie Island.
3. Teacher asks some students to share the answers.

1. Students look at the title and think about what the passage  mainly talks about.
2. Students read the passage and find out what happened to Macquarie Island .
3. Some students share the answers with the class.

To let students understand what happened to Macquarie Island.

Activity 3

1. Teacher asks students to choose the author’s purpose in writing this passage and give their reasons.
2. Teacher invites some students to share their answers and others to make comments.

1. Students read the passage again and choose the author’s purpose in writing this passage and give their reasons.
2. Some students share their answers with the class. Others make comments.

To help students figure out the author’s purpose in writing the passage.

Activity 4

1. Teacher asks students to read the passage carefully and complete the flow chart.
2. Teacher checks the answers with the students.
3. Teacher asks students to discuss in groups how human interference led to such severe consequences for Macquarie Island.
4. Teacher invites some students to share their answers with the class.

1. Students read the passage carefully and complete the flow chart.
2. Students check the answers with the teacher.
3. According to the flow chart, students discuss in groups how human interference led to such severe consequences for Macquarie Island.
4. Some students share their answers with the class.

To help students to figure out the key information with some details of the passage.

Think & Share

1.   Teacher asks students to think about and answer the questions individually.
2.   Teacher asks students to discuss the questions in groups.
3.   Teacher invites some students to share the answers with the class.

1.   Students think about and answer the questions individually.
2.   Students discuss the questions in groups.
3.   Some students share the answers with the class.

1. To help students have a deep understanding of the theme of the passage.
2. To help students apply what they’ve learnt in life.
3. To encourage students to apply cause and effect in their reading and writing.