高中英语 Unit 22 Lesson 3 Natural Disasters 课件2 北师大版选修8 课件VIP免费

Lesson 3Unnatural Disasters which of the disasters in the key words do you think are: (a)caused by people? (b)made worse by people? (c)natural?Key words: disasters droughts, earthquakes, floods, Forest fires,hurricanes. Landslides, tsunami, typhoon, Volcanic eruptions, windstormsRead the article and check your answers to exercise 1. reading strategies:completing Texts with sentence gaps (a)read the text to get the general idea. (b)read a paragraph with asentence gap and identify the topic, e.g. disasters. (c)read the sentences before and after the gap and look for clues about the missing setence, e.g. is it an example of what is mentioned before? (d)certain words may help you: time references(then). pronoun references(it, that),linking words(however), (e)decide which sentence goes in the gap.check that it fits the sentences before and after it.ANSWERS:Caused by people: forest firesMade worse by people: hurricanesNatural: floods, droughts, windstorms, earthquakes, volcanic eruptions, forest fires, hurricanesUse the strategies to complete the gaps in the text(1-5)with theseSentences(a-g). There are two extra sentences you do not need.(a) But geological evidence shows that 73.000years ago there was a much greater eruption.(b) Even prosperous europe has suffered and large areas of france, britain and germany have all been under waer.(c) That is probably not the most important factor either.(d) third, the other bits of land you might have been able to farm are now useless.(e) On top of all that, add climate change and the spectre of global warming.(f) For example, the yellow river, once notorious for tlooding the chinese landscape, failed to reach the sea at all on 226 days in 1997(g) One answer is over-population....