Unit 4 Creatures large and small名师教学视频（文字实录）

Unit Four More Reading

The mystery of hibernation

教材分析:

本单元的拓展阅读The mystery of hibernation是一篇典型的科普说明文。全文篇幅短小，共221词，分4个段落，清晰明了，并配有一幅以白雪皑皑的冬天为背景的狗熊的图片。

本文采用“总---分”结构，首段以问题引出话题，接着介绍了动物冬眠的定义、冬眠的时间和原因。第二至第四段列举了三种动物——蝙蝠、青蛙、熊各自的冬眠地点、冬眠方式和特点。

文本语言浅显，除了个别定语从句和非谓语形式，没有特别的长句和难句。定语从句之前已经学过，非谓语也在语篇阅读中有所接触。文中出现的一些生词和词组，如：occur, absence, upside down, stir, disturb，通过替换的形式帮助学生理解。因此，对大部分学生来说，本文的阅读不会有理解障碍，重点在于运用所学阅读技巧快速获取信息，为概要写作提供条件。

为深化主题、增加阅读量，回家作业中补充了一篇与课文同主题的科普文。不同于课文，该文从生态的视角，介绍了近年来全球气温变暖对冬眠动物的负面影响。

这篇文章共271词。鉴于高一学生的词汇量，对新单词已经进行了替换，略有困难的词汇进行了中文释义。全文分5段，结构清晰，适合学生操练概要写作。文章第一、二段引出话题，讲述了全球气温变暖导致旱獭冬眠时间变短的现象。第三段则以熊和花鼠为例，说明了另一种影响——原来冬眠的动物不再冬眠。第四段讲述了这些影响对动物造成的后果——由于缺乏足够的食物而饿死。文章末段提出了科学家们对于这些冬眠模式改变的忧虑。至此，人类应反思该如何与自然和谐相处。

学情分析：

授课对象是我任教的高一（3）班。该班同学总体比较活跃，但语言基础知识不够扎实，使一部分同学怕口头和书面表达。

本课的主题是“动物冬眠的习性”。学生对自然界常见的动物有所了解，对动物的冬眠现象也并不陌生，但不具体了解动物不同的冬眠方式，更鲜有学生会想到全球气温变暖对动物带来的重大影响。通过这两篇文章的阅读，使学生们更多了解冬眠的神秘之处，深化人与自然和谐相处的理念。

设计理念及意图说明: 1. 泛读More Reading，结合课外补充阅读，增加阅读量

由于本文难度不高，教师补充了一篇同主题的课外阅读作为回家作业。该文主题是动物冬眠的生态问题，从广度和深度两方面加深学生对课文的理解力。

2. 通过上下文理解生词，正确解读文本

本课是新授课，学生学习的重点是文本理解。通过全文阅读，在上下文中初步猜测生词词义，结合词义替换的练习以扫清语言障碍。学生在教师问题串的引导下梳理文章框架脉络，仔细研读关键词句，掌握核心内容，同时尝试用自己的语言解读文本。

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3. 提取文本主要信息，尝试概要写作

概要写作对于学生们来说是全新的写作形式。在起步阶段，教师旨在培养学生在阅读过程中通过回答教师预设的问题以提取文本主要信息，从单句到语段，形成一篇内容概要，逐步在阅读实践中学会自己提取内容要点，熟悉并掌握写内容概要的写作方法。

Teacher: Xu Hua, Qingpu No.1 High School Class: Class 3, Senior 1 Date: May.18th, 2016

Teaching Material: Oxford English Module 2 Unit 4

Teaching Objectives: 

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By the end of the class session, the students will be able to: catch the main idea of the text understand the new or difficult expressions in the context through paraphrase. describe the hibernation of the three creatures mentioned in the passage, using the key words in the text.

summarize the passages based on the extracted key information. know more about the animal world and live in harmony with nature. Teaching focus and difficult points: how to make a summary based on the key information of the text Teaching Aids: Multimedia, a blackboard and worksheets

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Teaching procedures: Steps

Pre-task preparation Teacher’s activity

Warm-up: play the video “hibernation”.

Raise Qs about the video. Write down the title on the blackboard. Q:

What do you think the passage will tell us?

Ask students to scan the text.

Teach words.

Students’ activity

Enjoy the video and answer questions.

Make predictions about the passage.

Do T/F exercise. Replace the colored parts with the given words.

Purposes

To arouse students’ interest and lead in the topic directly.

While-task procedure

Help students

catch the main idea of the text and get students to be a a Ask students to read the first paragraph and find out the main points.

Present a sample summary of the first paragraph. Elicit what a summary is and the steps to write a summary.

Ask students to read paras2-4 and fill out the form.

Read the first paragraph familiar with and find out the main points. Put together the summary of main points to make a paragraph. summary.

Try to underline the specific information and fill out the form.

Check the answers.

Help students catch the features of the three animals’ by hibernation picking out the key words. Ask students to work in pairs to make an oral summary of the three animals’ hibernation separately.

Invite a few pairs to make their presentations respectively.

Make comments. Work in pairs to describe how bats, frogs and bears hibernate in brief. (Group 1、2: bats Group 3、4: frogs Group 5、6: bears)

Peer assessment Lead students to summarize paragraphs separately.

the 3

Post-task activity Ask students to finish a summary of the whole passage in groups.

Show some work with a projector and encourage other students to make comments.

Present a sample summary of the whole passage. Group work: 1) Write a summary of the whole passage by themselves. 2) Share their written work in groups and choose the best one and polish it together. 3) Perform their work.

Lead students to practice writing a summary of the text.

Assignment

1. Read the words and text fluently. 2. Polish the finished summary. 3. Try to write a summary of the additional reading passage.

Thank you for your attendance and any of your suggestions is greatly expected and appreciated.

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