课件14张PPT。JodieUnit4 Global warmingLearning about languagepenguinThe Earth Is Becoming Warmer
—— but does it matter?Discovering There is no doubt that the earth is becoming warmer. But how has the phenomenon happened? All scientists agree with the view that it is because of human activity. Burning of fossil fuels has caused too much CO2 in the air and the temperature of the earth tends to increase with ‘greenhouse effect’. But some scientists disagree with the point that lots of CO2 is bad for the earth. Besides, although people have done something to reduce CO2 , the earth continues to be warm. Nobody knows the effects of global warming in the future.Find out useful words and expressions from
the text to replace the underlined words. There is no doubt that the earth is becoming warmer. But how has the phenomenon come about? All scientists subscribe to the view that it is because of human activity. Burning of fossil fuels has resulted in too much CO2 in the air and the temperature of the earth tends to go up with ‘greenhouse effect’. But some scientists are opposed to the point that quantities of CO2 are bad for the earth. Besides, even if people have done something to reduce CO2 , the earth keeps on being warm. Nobody knows the effects of global warming in the future.
A. be likely to
B. take care of sb
C. usually happenGlobal warming is not a random phenomenon but will cause many serious natural ________.
(phenomenons /phenomena)The_______ from Charles Keeling show the increase of CO2 in the atmosphere. (datum, data)phenomenonphenomenapl.datapl.datumphenomenadataBurning of fossil fuels has resulted in too much CO2 in the air . result in
result from
as a result
as a result ofbecause of
cause
therefore
be caused by
Learn words in familiesPrivate cars_________ lots of CO2 in the air.
Lots of CO2 in the air________ private cars.
______________private cars, lots of CO2 has been put into the air.
Private cars put out lots of CO2. ___________,they do harm to the environment. as a result as a result of
result in result fromCo2result inresults fromAs a result ofAs a resultQuantities of CO2 are bad for the earth. A quantity of CO2 are bad for the earth.× Quantities of trees ______cut down and a quantity of animals_____ homeless.
A. has been; are B. have been; is
C. have been; are D. has been; is Lots of CO2 is bad for the earth. isThe global warming has________ the loss of our homes.
_________ my friends have been lost.
C. I was wondering how the disaster has _________.
D. Too much CO2 in the air has made the temperature of the earth _________.
E. Many terrible social ______________ are bad for the environment.
F. But it’s a pity that_______ people have taken some actions to protect us, the earth_______ being warm.
G. I__________ the point that global warming is a good thing because it has nearly killed me. Penguins are complaining... go up keep on be opposed to result in result from
come about quantities of subscribe to even if phenomenonIt is on the earth that human beings live.Discovering The Earth Day is on April 22nd. It is on April twenty-second that the Earth Day is.It is human activity that has caused global warming.It is human beings who have caused global warming. global warming
penguin
homeless
it is…that (who)…Descirbe itPair-workThis is a penguin who survived the disaster.
He suddenly met a boy, John. P: Hi, boy. Do you know that________________________.
(正是你们人类让我无家可归)
J: Really? I ______________(反对)your idea.
P: You should know_______________________________
________________.(大量的二氧化碳导致全球变暖)Besides, it
________(继续)warming.
J: Oh, I’m sorry to hear that the temperature has_____(上升)
and it ______ (易于)cause many serious natural _______
(现象).Now I ________(赞同) your view and I know
I should help you, ________ (尽管) it’s difficult.
P: A good boy!it is you humans that have made me homeless am opposed toquantities of CO2 result inglobal warmingkeeps ongone uptends tophenomenasubscribe toeven ifThere is enough in the world for everyone’s need, but not enough for everyone’s greed.
Help John finish a poster to show the causes and effects of global warming and appeal to people to protect the earth. (around 100 words)
Useful words and expressionsWriting phenomenon tend come about quantities of result in go up even if keep on subscribe to be opposed to it is…that(who)…
phenomenon tend come about quantities of result in go up even if keep on subscribe to be opposed to it is…that(who)…
Global warming
-----Please help these penguins!
The earth is becoming warmer and it is threatening penguins' life! Do you know the causes of global warming? There is no doubt that____________________________________
________________________________________________
_______________________________________________.
However, as for the effects of global warming, scientists have different ideas. On the one hand, ________________
___________________________________.On the other hand,
__________________________________________________.
Anyway, lots of penguins have died because of global warming. So it is our duty to do something for the earth. Finish the poster for John.
Review the key words and expressions we learned today.Assignment