Unit 22 Environmental Protection lesson 3 Natural diaster

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名称 Unit 22 Environmental Protection lesson 3 Natural diaster
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科目 英语
更新时间 2009-06-30 15:09:00

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课件26张PPT。lesson three
Nature is turning on usLook at the following pictures and what
are happening in the pictures?
drought [draut]
earthquakefloodForest fireshurricane (飓风)
(a violent storm with very strong winds)landslide泥石流
(The sudden fall of a mass of earth, rocks, etc. down the side of a mountain)tsunami
[tsu:'nɑ:mi]
A tsunami is a huge destructive wave (especially one caused by an earthquake in the ocean.) typhoon
[tai'fu:n]
a tropical cyclone occurring in the western Pacific or Indian oceans volcanic eruptions What do you think causes the disasters, people or nature?Reading and thinkingNow more and more people become aware that those disasters have much to do with what we have done to the earth. We have cut down too many trees in the forests, we have badly polluted the environment, we have shocked our own home-planet time and again with tremendously powerful explosions of nuclear bombs. As a result, climates have become abnormal, rainwater rushes down hillsides angrily, and the underground energy goes up to revenge(报仇, 复仇)itself on us.
the first readingRead the text quickly, complete the gaps in
the text (1-5) with these sentences (a-g).
There are two extra sentences you do not
need.
Reading strategies: Completing texts with sentence gaps.5) Decide which sentence goes in the gap. Check that it fits the sentences before and after it.
Read the text to get the general idea.2) Read a paragraph with a sentence gap and identify the topic.
3) Read the sentences before and after the gap and look for clues about the missing sentence.4) Certain words may help you: time references, pronoun references, linking references.
1)a) but evidence shows that 73,000 years ago there was a much greater eruption.2)b) Even Europe has suffered and large areas have been underwater.3)c) That is probably not the most important factor either.4)d) Third, the other bits of land you might have been able to farm are now useless.5)e) On top of that add global warmingf) For example, the Yellow River, once famous for flooding, failed to reach the sea at al for 226 days in 1997.g) One answer is overpopulation.
Read the text again and answer these questions:1. What is the attitude of the journalist towards the future ?
pessimistic.
2. Who are most likely to be the victims of natural disasters?
poor people.the second reading3. Why are there now more hurricanes, floods and droughts ?
overpopulation and mismanagement of the world’s resources.4. Why are volcanoes and earthquakes more dangerous now ?
Because half the world’s population lives in cities within range of volcanic eruptions and earthquakes.
5. What could be the biggest threat to the planet in the future?
A volcanic eruption. 6. What effects might this threat have?
It might plunge the planet into
winter for years.Fill in the blanks about the text.In the last ___ years , there are more and more disasters such as _____ , ________, windstorms, earthquakes, ________, volcanic _________and _____ fires all over the world.
Why are so many disasters ? One of the reasons is over- __________. ten floodsdroughtstyphoons eruptions forest populationMemory test__ addition, ______ change and the spectre of global ________ caused by the mismanagement of the world’s resources can lead to the disasters or make them worse.
Inclimate warmingAt present, volcanoes and earthquakes are more _________ with the fast ______ of people . Earthquakes take the lives of 1.6 million people in the last hundred years. What is worse, the disaster professionals predict that the things will get _____.dangerous growthworse Prefixes:
1. overpopulation a) again
2. substandard b) wrongs
3. deforestation c) below
4. downhill d) too much
5.undernourished e) many
6. rebuild f) opposite of an
7. unstable g) not enough
8. semi-active h) downwards
9. multination i) opposite of an
10. mismanagement j) partly/ halfactionadjective
Homework
Project on P108&P109:
Plan, prepare and design your web pages about the world around us in groups of 4.There is a song sung like this:
Heal the world,
Make it a better place for you and for me.Heal the world Make it a better place For you and for me And the entire human race There are people dying If you care enough for the living Make a better place
For you and for me
Heal the world we are living Save it for our childrenHeal the world