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1、
???????????????The first Period
Teaching goals 教學(xué)目標(biāo)
1. Target language 目標(biāo)語言
a. 重點(diǎn)詞匯和短語
compare, phenomenon, graph, fuel, trap, data, climate, catastrophe, consequence, range, per, glance, compare to, come about, fierce debate, result in, build up, keep on
b. 重點(diǎn)句式
There is no doub
2、t that the earth is becoming warmer.
Without the 'greenhouse effect', the earth would be about thirty-three degrees Celsius cooler than it is.
They also believe it is the burning of more and more fossil fuels that is resulting in this increase in carbon dioxide.
But there are some
3、very different attitudes among scientists towards this issue.
Even if we start reducing the amount of carbon dioxide and other greenhouse gases, the climate is going to keep on warming for decades or centuries.
2. Ability goals 能力目標(biāo)
Enable the students to talk about the causes and effec
4、ts of global warming.
3. Learning ability goals 學(xué)能目標(biāo)
Help the students learn how to talk about the causes and effects of global warming and express ideas about what people should do about it.
Teaching important points 教學(xué)重點(diǎn)
Help the students learn how to debate over the topic "We should do not
5、hing about global warming."
Teaching difficult points 教學(xué)難點(diǎn)
Enable the students to learn the writing skills of the text and get a better understanding of articles of this kind.
Teaching methods 教學(xué)方法
Listening, reading and group work.
Teaching aids 教具準(zhǔn)備
A recorder and a computer.
Teaching proce
6、dures & ways 教學(xué)過程與方式
StepI Revision；
Check the homework.
Review useful expressions about agreement and disagreement.
Present Ss a group of pictures and let them decide what kind of energy it is and decide whether it is renewable or non-renewable.
Step II Pre-reading；
1. Show a picture of green
7、house on the screen, and ask Ss what it is and what it is used for, also how does it works?---- greenhouse gases( including carbon dioxide\ methane and vapour)---The keep the heat from the sun and therefore warm the earth.
Burning fossil fuels--- carbon dioxide is being produced. ---“The Earth is B
8、ecoming Warmer)
Step III While-Listening (Comprehending)
Get the Ss to read the passage quickly and help them form a good habit of reading；(What do you think will be talked about at the sight of the title?) Read it quickly and try to get the general idea and divide the whole passage into several
9、parts and summarize the main idea.
Main idea of each part
Writing techniques
Introduction (P1)
Raising a question
Illustrate how that comes about?>(P2-4)
Giving examples, using graphs, etc
List two dif attitudes among scientists towards the issue (P5-10)
Giving examples, making contrast
It’
10、s up to readers to think and decide whether people should do something about global warming or not (P11)
Using a question, leaving readers to think over the issue
2. Do the Exercises in the comprehending part.
Step IV Debating;
We should do something about the global warming. (for VS against)
Step5 Homework
1. Read the passage again more intensively
2. Prepare the debate in group
3. Preview Using Language
單位：湖北省荊門市 姓名：李國 E_mail：liguo619@
高二英語（選修六）unit 4 課時教案The first Period
