Unit 4 Global Warming
Reading The
earth is becoming warmer----But does it
matter?
Teaching
Objectives:
Ⅰ. Of
Knowledge
Students will know basic scientific facts concerning global
warming, scientists’ different attitudes towards it and the
writer’s opinion as well.
Ⅱ. Of
Ability
1.
Students will continue to develop their predicting skills
to guess the main idea of the article.
2.
Students will practice the scanning skills to get the
specific information.
3.
Students will learn to think critically
about the problems the writer has raised.
Ⅲ. Of
Emotion
1.
Students will learn that we should conserve energy and
protect the earth.
2.
Students will want to get involved in the classroom
activities when doing the tasks.
Teaching Aids: Multimedia
kit
Teaching
Procedures:
Step 1:Pre-reading
Watch a short video
Step2: Fast-reading
1. From the title, can you guess the topic of the passage?
2. Describe the two graphs
3.What is the purpose of the first paragraph that is in bold(粗体)?
Step3 :Skimming
Read the the first paragraph , and find the answers to these questions.
1. Who wrote the magazine article? _____________
2. What is the name of the magazine? ___________
3. What is the magazine article mainly about?
The passage is mainly about ______ and ______ of global warming and it is written by _________ from the magazine __________.
Step 4 Detailed-reading
Para 3
1. What Human activity: __________________
2. What are greenhouse gases?
3. What is greenhouse effect?
Small amounts of the gases _____heat from the sun and _____the earth, while huge_____________ extra carbon dioxide come in , thus trapping more heat and causes the temperature to ______.
4.Summary
energy warmer trap attitudes heat
Everybody believes that the earth is becoming ______and that human activity has caused this global warming. In order to produce _______, people have to burn fossil fuels. During this process, “greenhouse” gases are produced. “Greenhouse gases” can ____ heat from the sun and warm the earth and this phenomenon is called “greenhouse effect”. On the one hand, we need it. On the other hand, if there are too many greenhouse gases, more _____ energy will be trapped, causing global warming. However, the __________ of scientists towards global warming are totally different
Para6
What are the attitudes of scientists towards global warming?
scientists like Dr. Janice Foster
It would be a ___________
There may be a rise of _______,or storms, ____ ,
______, _______, the spread of ______,the disappearance of _____.
scientists like George Hambley
It is a ______ thing.
It’ll __________________.
It’ll ___________________.
Para7
The author’s attitude:
The author probably agrees that ________
A. actually global warming is good for man.
B. we should do nothing about the global warming.
C. catastrophes will happen if the globe keeps on warming.
D. a lot remains to be found out about the effects of global warming.
Step5 :Watch a short video
Does global warming matter?
Step6 :Homework
Global warning: It is time for us to do something to protect our earth.
Write an article about the causes and effects of global warming to call for attention to the earth protection.
教学反思
从教学设计上看：
1.本堂课主要想体现新课标形势下的教学模式。以学生为主体，展现培养学生自主学习、自主探究为主线，培养学生探究精神，在整个阅读信息的输入中，突出了学生自读的过程。通过教师的指令性主导，以及信息输出的设计，注重了学生读的能力的培养以及解决问题的技能。
2.在教学环节上，实施新课标要求的任务型教学法。通过视频和图片引入，激发学生兴趣，引起学生共鸣，自始至终用问题来引导学生，让学生在解决问题中学习，使学习过程环环相扣。在整个课堂教学中通过语篇分析，知识建构，表演生成等把能力目标，知识目标与情感目标有机贯穿到一起。
不足之处：
1.整个课堂节奏把握上仍有待提高。课堂上某些环节进行的不够充分，教师对每个环节的总结与过度上还不是很流畅，学生展示也不是很充分。
2.在课文的生词处理上不够全面，缺少应用回顾环节，课堂中，教师指令性语言不够简洁清晰，师生互动和生生互动相对较少。
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