人教版高二英语选六Unit 4 Global warming reading导学案（无答案）

课题：Unit 4 Global warming
Lesson 2 (reading)
【三维目标】
1.Knowledeg objective:To cultivate students’s reading ability .
2.Process and method:Group work,Task-based teachng.
3.Emotion attitude and value: To enable students to kown about the bad effects of global warming.
【课前预习】选词填空
1. There are many inconveniences that you have to __________ when you are camping.
2. ____________________ our talks were going on smoothly.
3. He was not ____________________my suggestions.
4.He didn’t work hard.____________________, he failed.
5.How did it_________ that you were absent from such an important meeting yesterday.
6.On the one hand I admire your ability,but I distrust your judgment.
【课堂演练】
Step 1 Pre-reading—what is a greenhouse?（P25）设计意图：为学生理解文章提供引导和思路。
A green house is made of _____ and is used for _______ plants, especially during _____ weather. The air inside is warm because the glass _____ the heat from the sun and keeps it from _______. This makes the greenhouse ________ and so the plants can grow throughout the cold period.
Step 2 Reading 设计意图:训练学生把握文章主旨，提取关键信息的能力。
Task 1 Fast reading:.main idea of each part.
Part1(para ) A. How global warming comes about?
Part2(para ) B.Two different opinions about global warming.
Part3(para ) C.Should we do anything?
Part4(para ) D.The earth is becoming warmer.
Task 2 Careful reading:read each part and answer the questions.
Part1) Who wrote the magazine article？What is the name of the magazine?
_________________________________________________
Part2）What is the cause of global warming?

Part 3)The different ideas between Dr. Janice Foster & George Hambley
Dr. Janice Foster
George Hambley
Carbon dioxide has caused the global temperature to ______. An increase of five degrees would be a ______ and could be __________.
More carbon dioxide is a _________ thing,which makes crops_________ and will encourage ______________
Part4) Do they draw a conclusion at last?

Step3: Post-reading: 课文语法填空
设计意图:加深学生对课文的理解以及对重点词汇和语法的理解。
There is no doubt 1_________ the earth is becoming warmer but there is a fierce debate over whether_2________is human activity that has caused this global warming.
Many scientists believe that people have caused the increase in the earth’s temperature by 3_________(burn) of fossil fuels to produce energy.These gases trap heat from the sun and therefore warm the earth, without 4_________ the earth would be about 30℃ 5 _________(cool) than it is. But the increased amount of carbon dioxide 6_________(mean) that more heat energy is trapped in the atmosphere, 7_________(cause) the global temperature to go up.
On 8_________ other hand, other scientists believe that any warming will be mild with few bad 9_______________ (environment) consequences and more carbon dioxide is 10________________ (actual) a positive thing.
【课后延伸】翻译下列句子
They also agree that it is the burning of more and more fossil fuels that has resulted in this increase in carbon dioxide.

So how has this come about and does it matter?

There is no doubt that the earth is becoming warmer and that it is human activity that has caused this global warming.

课前三分钟

二次备课
课后反思

Teaching key and difficult points:
1. Teaching key points:
1)The important words and phrases in this unit
2)Get students to find out the mian idea of the reading passage.
2. Teaching difficult points:
Enable students to know about the bad effects of global warming.