B1U4Warmingupandpre-reading.ppt

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2016-12-26 发布于河南
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B1U4Warmingupandpre-reading.ppt

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How many natural disasters do you know? Bright lights flash in the sky Animals are too nervous, such as cows, dogs, horses, and snakes, etc. * Unit 4 Earthquakes typhoon tornado, hurricane tsunami [tsju:’nɑ:mi] Warming up volcanic eruption sand storm thunderstorm earthquake A terrible earthquake happened in Wenchuan. Tangshan, Hebei July 28th, 1976 Many people believe that“ It is always calm before a storm.” Look at the two photos in warming up in your book . If an earthquake comes, what might happen to them? 1. Imagine your home begins to shake and you must leave it right away. You have time to take only one thing. What will you take? Why? Pre-reading Guess: What strange things will happen before an Earthquake?