
中圖分類號:G632.0 文獻標識碼:A 文章編號:1992-7711(2017)06-0076
一、課例背景
本課例由廣西省融安縣高級中學吳佳玲老師執教,是校內高二閱讀公開課,授課時間40分鐘。
二、教學分析
1. 教學內容
本課例選取人教新課標版高中英語必修6 unit4 reading(說明文),文本語言難度較大。描述全球變暖起因,如何應對全球變暖問題以及兩個專家對全球變暖意見和看法。課時的教學重點是認識全球變暖產生的后果;鼓勵學生表達對全球變暖的看法和應對措施。
2. 學情分析
授課對象為高二年級B層次的學生,基礎弱,本課內容貼近生活并涉及其他學科相關知識,可在網上搜相關話題、文章和圖片。學生有興趣,為本課學習提供背景知識支架。
3. 教學目標
(1)熟悉與全球變暖和表達觀點的詞匯:burning of fossil fuels、human activity、greenhouse gases等,句式:I would like to suggest that wed better...I think it would be wise to 等。(2)了解全球變暖的起因后果,啟發學生應對全球變暖。(3)通過討論培養批判性思維,激發社會責任感和積極的生活態度。
三、教學過程
Step I lead in
【設計意圖】
導入:有趣的視頻、直觀的圖片和簡單對話,激活學生已有背景知識,呈現將出現的詞匯?;钴S了課堂氣氛,激發學生學習熱情,為接下來的閱讀提供支撐。
Step II fast reading
連線段落大意
Part I (para1)
Part II (para2-5)
Part III (para6)
Part IV (para7)
【設計意圖】引導學生運用略讀閱讀策略,關注關鍵句。培養學生快速閱讀和歸納主旨大意的能力。
Step III Careful reading and discussion
(1)What is global warming? (para2)
(2)How has the global warming come about?(para3)
It is that has caused this global warming. Besides, the increase in the temperature is also due to , some byproducts of which is called , and the most important one of which is . We need to keep the earth warm enough, but may cause the global temperature to go up.
A. burning of fossil fuels
B. human activity
C. greenhouse gases
D. huge quantities of extra carbon dioxide
E. carbon dioxide
F. small amounts of gases
(3)para4、5(effects)
From 1860 to 2000, the global has risen (上升) about
degree Fahrenheit.
Paragraph 4 between and , the carbon dioxide content of the atmosphere went up
from around per million to around per million.
(4)The different ideas between Dr. Janice Foster & George Hambley(para6)
【設計意圖】學生采用不同的閱讀策略,加強學生尋找細節信息的能力,小組合作學習,獲取準確信息并有效的解讀,培養學生思維能力,喚起環境保護意識。
Step IV speaking
What should we do to protect the environment?
Useful expressions:
As to..., I suggest that we should...
I would like to suggest that wed better...
I think it would be wise to ...
I think it would be more beneficial if we...
【設計意圖】學生運用自己所學知識,口頭輸出,培養學生口語能力并學生充表達對保護環境之情,達到情感升華。
Step V summary and homework
(1)surf the internet to get more information about the global warming and environmental protection.
(2)完成課文的語法填空
四、教學反思
1. 對學情認真了解,對文本研讀和思考,課堂設計準備充分。學習任務分解,降難度,引導學生思考,培養思維能力、情感態度,有效調控了活動,讓學生對文本學習有信心。2. 教學目標明確,課堂有效,學生參與度高。教學活動緊湊,學生圍繞教學目標思考和學習。
(作者單位:廣西融安縣高級中學 545400)