高中英语：unit22 lesson3 natural disasters课件(北师大版选修8) 课件VIP免费

Lesson 3 Natural DisastersLook at the following pictures and what are happening in the pictures?Look at the following pictures and what are happening in the pictures? earthquakesdroughts tsunami floods volcanic eruptions hurricanes forest fires typhoonlandslides What do you think causes the disasters, people or nature?Discussion Discussion unnaturalRead 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.3. 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 population__ 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 millionPeople in the last hundred years. What is worse, the disaster professionals predict that t...