Unit4 Earthquake- warming up 学案Ⅰ.what natural disasters have you heard of?________________ _______________ _______________ ______________ ___________________________ _______________ _______________ ______________ ___________Ⅱ.Which disaster may cause the worst damage? _______________________________________________________________________Ⅲ.Discussion:How much do you know about an earthquake?1) What do you think will happen before an earthquake?____________________________________________________________________________________________________________________________________________________________2)What’s the result of a bad earthquake? ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________3) What shall we do if an earthquake happens when we are at school?____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________4) Can we stop earthquakes?______________________________________________________________________________________________________5) What can we do after earthquakes?____________________________________________________________________________________________________________________________________________________________Ⅳ.ListeningRead the statements and then listen to the whole text. Decide whether the statements are true or false. It is believed that on the surface of the earth are a number of plates. ( )The plates are always moving. ( )If the plates stop moving, there is an earthquake. ( )If the plates move...