人教版高一英语必修一unit4warmingupprereadingppt课件.ppt

Unit 4 Earthquake Warming-up&Pre-reading1.Master the following useful words and expressions:earthquake,quake,right away,well,crack,smelly,pipe,burst,in ruins,injure,destroy,track,useless,electricity,disaster,a number of,damage.2.Know basic knowledge about earthquake;3.Know how to protect oneself and help others in earthquakes.Whats the video about?Whats the video about?The earthquake in Wenchuan.Do you still remember when the earthquake in Wenchuan happened?Earthquake in Wenchuan on May 12th,2008.The whole city lay in ruins,69,225 people died,374,640 were injured and 17939 were missing.Do you know other serious earthquakes that happened in recent years?In Haiti(海地海地),on January 12,2010In Chile(智利智利),on February 27,2010In China,on April,14,2010Earthquakes shook the whole world in 2010At 7:49 April 14,2010,an earthquake hit(袭袭击击)Yushu county,Qinghai province.2220 people were dead and 70 were missing.An earthquake hit Japan on March 11,2011.An earthquake hit Yaan on April 20,2013.Earthquake is not far from our life.It alarms(警告警告)us it is the high time to learn some knowledge about earthquake.Why do earthquakes happen?Earthquakes happen when two moving plates jump and push against each other.As a result：The earth is Earthquakes happen when two moving plates jump and push against each other.As a result DiscussionWhat might happen whenthe earth is shaking?TangshanSan Francisco Look at the photos of Tangshan and San Francisco and try to describe what happens in the 2 cities when there is an earthquake.Buildings fall down.The cracks cut across(横断、截断横断、截断)the roads./Roads get huge cracks.Bridges are broken.The supply of electricity and water is cut off.The railway tracks are useless.Many people are killed or injured.A number of people are homeless.The city lies in ruins.Tangshan,Hebei San Francisco,USAApril 18th,1906July 28th,1976Earthquake is a very destructive(破坏性的破坏性的;毁灭性的毁灭性的;);)and terrible disaster.So,its very important for us to learn more about earthquakes!What strange things do you think may happen before an earthquake?wellmicefishchickenscowspigsdogs There is bright light in the sky.There is bright light in the sky.The signs before Wenchuan Earthquake.There are cracksin the wells.The water in the well rises and falls.A smelly gas comes out of the cracks.Water pipes may crack or burst.Discussion:What shall we do if an earthquake happens?If in classroomIf outdoorsIf in classroom:1.Dont be nervous and keep calm.2.When at the bottom of the building,you should leave the classroom in good order.If you are at the top of the building,dont try to run out of the classroom or jump out of the window.3.Hide under your desk and protect your head by putting your hands on your head.4.Wait for a good time and leave the classroom right away after the shake decrease(减少，减小减少，减小).If outdoors:Stay away from buildings,trees,signs,and power lines.Crouch down(蹲下蹲下)and cover the head.Get away!My heart will go on Disasters will go on!We cant avoid them,however,we can reduce them!If disasters do happen,keep calm and face them.Get ready for them from now on!Thanks for your listening!Imagine your home begins to shakeand you must leave it right away.You have time to take only one thing.What will you take?Why?I want to take money,books,food,water,clothes because watermoneyidentity cardfoodbooksclothescomputermappictures of familymobile phoneWhat will you take?Why?Pacific plateAmericanEurasian plate India plateAfrican plateAntarctic plateplate