中圖分類號(hào):G632.0 文獻(xiàn)標(biāo)識(shí)碼:A 文章編號(hào):1992-7711(2017)06-0076
一、課例背景
本課例由廣西省融安縣高級(jí)中學(xué)吳佳玲老師執(zhí)教,是校內(nèi)高二閱讀公開課,授課時(shí)間40分鐘。
二、教學(xué)分析
1. 教學(xué)內(nèi)容
本課例選取人教新課標(biāo)版高中英語(yǔ)必修6 unit4 reading(說(shuō)明文),文本語(yǔ)言難度較大。描述全球變暖起因,如何應(yīng)對(duì)全球變暖問(wèn)題以及兩個(gè)專家對(duì)全球變暖意見和看法。課時(shí)的教學(xué)重點(diǎn)是認(rèn)識(shí)全球變暖產(chǎn)生的后果;鼓勵(lì)學(xué)生表達(dá)對(duì)全球變暖的看法和應(yīng)對(duì)措施。
2. 學(xué)情分析
授課對(duì)象為高二年級(jí)B層次的學(xué)生,基礎(chǔ)弱,本課內(nèi)容貼近生活并涉及其他學(xué)科相關(guān)知識(shí),可在網(wǎng)上搜相關(guān)話題、文章和圖片。學(xué)生有興趣,為本課學(xué)習(xí)提供背景知識(shí)支架。
3. 教學(xué)目標(biāo)
(1)熟悉與全球變暖和表達(dá)觀點(diǎn)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(fā)學(xué)生應(yīng)對(duì)全球變暖。(3)通過(guò)討論培養(yǎng)批判性思維,激發(fā)社會(huì)責(zé)任感和積極的生活態(tài)度。
三、教學(xué)過(guò)程
Step I lead in
【設(shè)計(jì)意圖】
導(dǎo)入:有趣的視頻、直觀的圖片和簡(jiǎn)單對(duì)話,激活學(xué)生已有背景知識(shí),呈現(xiàn)將出現(xiàn)的詞匯?;钴S了課堂氣氛,激發(fā)學(xué)生學(xué)習(xí)熱情,為接下來(lái)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(shè)計(jì)意圖】引導(dǎo)學(xué)生運(yùn)用略讀閱讀策略,關(guān)注關(guān)鍵句。培養(yǎng)學(xué)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(shè)計(jì)意圖】學(xué)生采用不同的閱讀策略,加強(qiáng)學(xué)生尋找細(xì)節(jié)信息的能力,小組合作學(xué)習(xí),獲取準(zhǔn)確信息并有效的解讀,培養(yǎng)學(xué)生思維能力,喚起環(huán)境保護(hù)意識(shí)。
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(shè)計(jì)意圖】學(xué)生運(yùn)用自己所學(xué)知識(shí),口頭輸出,培養(yǎng)學(xué)生口語(yǔ)能力并學(xué)生充表達(dá)對(duì)保護(hù)環(huán)境之情,達(dá)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(yǔ)法填空
四、教學(xué)反思
1. 對(duì)學(xué)情認(rèn)真了解,對(duì)文本研讀和思考,課堂設(shè)計(jì)準(zhǔn)備充分。學(xué)習(xí)任務(wù)分解,降難度,引導(dǎo)學(xué)生思考,培養(yǎng)思維能力、情感態(tài)度,有效調(diào)控了活動(dòng),讓學(xué)生對(duì)文本學(xué)習(xí)有信心。2. 教學(xué)目標(biāo)明確,課堂有效,學(xué)生參與度高。教學(xué)活動(dòng)緊湊,學(xué)生圍繞教學(xué)目標(biāo)思考和學(xué)習(xí)。
(作者單位:廣西融安縣高級(jí)中學(xué) 545400)