2. Lesson 3 Natural Disasters Unit 22 Environmental Protection

3. Part I Pre-reading 1. What disasters have been threatening the lives on the earth? drought

4. earthquake

5. flood

6. forest fire

7. hurricane

8. landslide

10. tsunami

11. typhoon

12. volcanic eruption

14. Nature is turning on us

15. 1st reading → skimming Reading strategy 1 → skimming Read the text to get general idea. (2m’) (When you encounter new vocabulary, skip it.) Natural disasters are getting worse because of human activities.

16. →skimming Reading strategy 2 →skimming Read a paragraph with a sentence gap and identify the topic, e.g disasters. Para 1: Para 2: Para 3: Para 4: Para 5: An example of volcanic eruption & earthquake show their threat to our world. Causes of natural disasters— Urbanization & industrialization Overpopulation in cities makes more people in the danger of natural disasters Experts predict that natural disasters will get worse Examples show natural disasters become common 3g 2f 2nd reading

17. 1. Use the strategies to complete the gaps in the text (1-5) with these sentences (a-g). There are two extra sentences you do not need. a) But evidence shows that 73.000 years ago there was a much greater eruption. b) Even Europe has suffered and large areas have been under water. c) That is probably not the most important factor either. Careful reading

18. d)Third, the other bits of land you might have been able to farm are now useless. e)On top of all that add global warming. f)For example, the yellow river, once famous for flooding, failed to reach the sea at all for 226 days in 1997. g)One answer is overpopulation. Answers: 1. ___ 2. ___3. ___ 4. ___ 5.___ b fgea

19. 1) The main reason why more natural disasters happen now is _______. A. that more and more people move to cities B. that volcanoes break out more frequently than before C. that earthquakes are even more dangerous than in the past D. overpopulation and mismanagement of the world’s resources 2. Choose the best answer to each question according to the text. Answer: D

20. 2) In the future, the biggest threat to human beings may be __________. A. volcanic eruption B. unnatural disasters C. floods and droughts D. typhoons and tsunamis Answer: A

21. 3) The threat to humans from volcanoes is even more serious because ______. A. more and more forests are destroyed by humans B. many people now live within the range of a volcanic eruption C. the population of the world is growing rapidly D. more carbon dioxide is produced by factories and vehicles Answer: B

22. 3. Read the text again and answer these questions. 1) What is the attitude of the journalist towards the future? 2) Who are most likely to be the victims of natural disasters? Pessimistic/Negative. Poor people.

23. 3) Why are there now more hurricanes, floods and droughts? 4) Why are volcanoes and earthquakes more dangerous now? Overpopulation and mismanagement of the world’s resources. Because around half the world’s population lives in cities, more than 500 million people now live within the range of volcanic eruption and an even greater number of people live at risk from earthquakes.

24. 5) What could be the biggest threat to the planet in the future? 6) What effects might this threat have? A volcanic eruption. It might send the planet into winter for years.

25. Part III Structure Analysis 1. This catastrophe is still very fresh in the minds of people worldwide who have not yet got over their separation from loved ones lost in the tsunami. 译文： 在世界各地许多人的心目中, 那场 灾难仍然记忆尤新。他们还没有从海 啸中丧失亲人的打击中恢复过来。

26. 在这个复合句中， who have not yet got over their separation from loved ones lost in the tsunami 为定语从句，修饰 people 。在定语从句中， lost in the tsunami 为过去分词短语作定语，修饰 ones 。 结构分析：

27. 2. People in agriculture areas, without any means to earn their living, move to the cities, and then construct shabby homes from whatever materials they can find on poor clay soil. 译文： 农业地区的人口，因为没有办法 谋生而流向城市。他们用在贫瘠的土 地上用可以找到的任何材料搭建起破 烂的房屋。

28. 结构分析： 在这个复合句中， without any means to earn their living 为复合结构， 在句中作原因状语。 whatever materials they can find 是宾语从句，在句中作介 词 from 的宾语。

29. 3. An even greater number of people live at risk, to some degree, from earthquakes which have claimed more than 1.6 million lives in the last hundred years. 译文： 从某种程度上来说，有更多的人 处在地震的危险中，在过去的几百年 间地震已经夺去了 160 多万人的生命。

30. 结构分析： 这是一个主从复合句， an even greater number of people live at risk 是主 句。 From earthquake 是介词词组作定 语修饰 risk ； which have claimed more than 1.6 million lives in the last hundred years 是 earthquake 的定语从句； more than “ 超过 ” ，修饰 1.6 million ； to some degree 是插入语。

31. Part IV Summary Fill in the blanks with the information from the text. In the last decade, there are more and more disasters such as _________, earthquakes, _________, volcanic _________ and _________ fires all over the world. Why are there so many disasters? One of the reasons is _____________. In addition, _________ change and _____________ caused by the mismanagement of the floods typhoonseruptions forest over-population climateglobal warming

32. world’s resources can lead to the disasters or make them worse. At present, volcanoes and earthquakes are more _________. Now more than 500 million people live within the range of a volcanic eruption and it is difficult to warn people of natural disasters ____________. Earthquakes took the lives of 1.6 million people in the last hundred years. What is worse, many experts predict that the things will get _________. dangerous in advance worse

33. 2. Complete the sentences with the correct forms of the following words. 1) The ________ forces protected the city. 2) When will you get your exam __________? 3) Don broke his arm when he _______ and fell on the ice. arm, result, mean, slide, slip, roll armed results slipped

34. 4) I _________ what I said. 5) What would be the best ________ of advertising our products? 6) Would you like honey on your _________? 7) The house _________ down the mountain side in the flood last year. 8) The match _________ in a draw. They had 2 points each. mean means roll slid resulted

35. Homework 1.Read the passage at least twice. 2.Find and analyze the long and difficult sentences in the passage.