高二英语Unitampnbsp4ampnbspGlobalampnbspwarmingampnbspReading公开课教学设计
unit 4 global warming ----reading(教学任务设计)
i.revision
in consequence/come about/ be opposed to/ go up/ result in/ a large quantity of
1) with the use of electricity, great changes have ¬¬¬¬___________ in our life.
2) the police found _____________drugs at his home.
3)at first they _____________the scheme,but we managed to argue them round.
4) the price of oil has _______________by over 50 percent in less than a year.
5) it rained yesterday and _____________the match was canceled.
6) the fierce quarrel both sides’ breaking up from each other.
ii.reading tasks:
1) read the text and then match the main idea of each part.
part 1(paragraph 1) a.list two different attitudes among scientists towards
global warming
part 2(paragraphs 2~5) b.it`s up to readers to think and decide whether people should do something about global warming or not.
part 3(paragraph 6) c. illustrate how global warming comes about.
part 4(paragraph 7) d. introduce a debate over the issue of global warming.
2)try to find out the main idea of the text.
the ______have different ideas on whether it _______ when the earth is becoming _______.
3)read the passage and answer the following questions.
1.what does the `green house effect` refer to?
2.what has resulted the increase in carbon dioxide?
3. who wrote the magazine article? what is the name of the magazine?
4. what are the names of the three scientists mentioned?
5. do the scientists agree with one another about the global warming?
6.the different ideas between dr. janice foster & george hambley
dr. janice foster----carbon dioxide has caused the global temperature to _____.an increase of five degrees would be a________and could be ______.
george hambley----more carbon dioxide is a _____thing,which makes
crops_______and will encourage_______.
4)summary
all scientists 1.________ to the view that it is human activity that has caused the global warming.this activity is burning fossil fuels,to produce energy .as a result, a natural 2.__________called the "greenhouse effect" has 3.____________.without this phenomenon,the earth would be about 4._______cooler than it is.so,we need those gases. however,the global temperature will rise when we add huge 5.________of extra carbon dioxide into the atmosphere. we know that the levels of carbon dioxide have 6._______ greatly over the last 100 to 150 years. the attitude of scientists towards this rise is completely 7________ . some think that the trend would be a catastrophe while some are 8.______ to this view,and they believe that any warming will be 9.____________ with few bad environmental 10.__________.
iii.useful sentences about protecting enviornment.
1.environmental protection has caused global concern recently.
2.everybody should raise the awareness that it’s our duty to protect our mother earth.
3.it’s high time we took immediate measures to protect our earth from being polluted.
4.on no account should we develop our economy at the cost of our environment.
5.with the increase of the world population, our environment is getting worse and worse
iv.homework
write a short passage using the topic about protecting environment.
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