Unit Four : Earthquake Period One: Warming upWhat natural disasters do you think may cause people great damage?Earthquake Typhoon/ Hurricane Flood DroughtFire VocanoWhat can you see in the pictures?Tangshan is a beautiful city with gardens, wide roads.San Francisco is a city with tall buildings thickly standing on the earth. TangshanSan FranciscoWhat will happen to the cities if there is an earthquake?These two cities are famous for their earthquakes during a period of calm.Imagine there has been a big earthquake,what will happen to the things around us?cracks, cut across houses, roads and canals, fall down, lie in ruins, destroy, damage, lossSo one should not trust situations that seem peaceful since bad things may happen.2. What do you think may happen before an earthquake?Before an quake, animals will become nervous. Cows, pigs, horses and dogs will be upset. Mice will run about and fish will jump out of water. In winter, people can even see snakes. So earthquake is predictable.----There is often a great sound. ----Animals too nervous to eat----There are bright lights in the sky.----A smelly gas may come out of the well.----Water pipes may crack or burst.What can we do to keep ourselves safe from an earthquake?When an earthquake happens,you are escaping from home,what will you take with you?Why?Talk about the great earthquakes that have ever happened in the world?What damages they caused?Natural disasters occur throughout the world, and China has a particular problem with earthquakes. Tangshan earthquake in 1976 is a case in point. So it is especially important to take steps to reduce the damage caused by quakes.Seismology: the study of Quake recordings the person who studies quakes. the machine to record seismic waves the inventor of the 1st seismologySeismologist:Seismometer:Zhang Heng in Han Dynasty:Homework:Talk about a big earthquake that happened in the world with your partner.List out the measures that people can take when an earthquake happens.1.move quickly from side to side or up and down2.a deep place to store water to drink3.structure built to give protection from rain wind or attack4.save or bring away from danger5.cause to break violently open or apart6.the part of a building left after the rest has been damaged7.damage so badly that it no longer exits or works8.event that causes great harm or damage9.channel cut through land or boats or ships to travel along,or carry water for irrigation shakewellshelterrescuebreakruinsdestroydisastercanal10.sudden violent movement of the earth’s surface11.gas that hot water gives out12.violent blow or shake;worried or frightened13.new or different;newly made,produced14.source of pride and pleasure15.a special wall that keeps water behind it16.black material found underground used for burning to supply heat17.baked or dried clay used for building18.having a bad smellearthquakesteamshockfreshhonourdamcoalbricksmelly
