2019-2020年高中英语必修5Unit2WelcometotheUnit.doc

2019-2020年高中英语必修5Unit2WeletotheUnitAims and requirements read a debate on the environment and a report about the Yangtze River listen to news reports and information about desertification discuss environmental protection design a poster write a report about protecting the environmentProcedures Wele to the UnitStep 1: BrainstormingAt the beginning of the class, lets first enjoy some beautiful pictures. The beautiful earth is our home. Do you love to live here?Now, lets enjoy a flash, Michael Jacksons Earth Song(地球之歌). Earth songWhat about sunriseWhat about rainWhat about all the thingsThat you said we were to gain.What about killing fieldsIs there a time What about all the thingsThat you said was yours and mine.Did you ever stop to noticeAll the blood weve shed beforeDid you ever stop to noticeThe crying Earth the weeping shores?Aaaaaaaaah AaaaaaaaahAaaaaaaaah AaaaaaaaahWhat have we done to the worldLook what weve doneWhat about all the peaceThat you pledge your only son.What about flowering fieldsIs there a timeWhat about all the dreamsThat you said was yours and mine.Did you ever stop to noticeAll the children dead from warDid you ever stop to noticeThe crying Earth the weeping shoresAaaaaaaaah AaaaaaaaahAaaaaaaaah AaaaaaaaahI used to dreamI used to glance beyond the starsNow I dont know where we areAlthough I know weve drifted farAaaaaaaaah AaaaaaaaahAaaaaaaaah AaaaaaaaahAaaaaaaaah AaaaaaaaahAaaaaaaaah AaaaaaaaahHey, what about yesterday(What about us)What about the seas(What about us)The heavens are falling down(What about us)I cant even breathe(What about us)What about the bleeding Earth(What about us)Cant we feel its wounds(What about us)What about natures worth(ooo, ooo)Its our planets womb(What about us)What about animals(What about it)Weve turned kingdoms to dust(What about us)What about elephants(What about us)Have we lost their trust(What about us)What about crying whales(What about us)Were ravaging the seas(What about us)What about forest trails(ooo, ooo)Burnt despite our pleas(What about us)What about the holy land(What about it)Torn apart by creed(What about us)What about the mon man(What about us)Cant we set him free(What about us)What about children dying(What about us)Cant you hear them cry(What about us)Where did we go wrong(ooo, ooo)Someone tell me why(What about us)What about babies(What about it)What about the days(What about us) What about all their joy(What about us)What about the man (What about us)What about the crying man(What about us)What about Abraham(What was us)What about death again(ooo, ooo)Do we give a damnAaaaaaaaah Aaaaaaaaah After watching the flash, what do you think of? What have we done to our home- the earth? And what has happened to the earth?pared with the last few years, the environment is getting worse.We should maintain the harmony between man and nature.Step 2: Sharing information1. As we all know, we human beings are often stricken by natural disasters.Can you name some of them?flood,fire,volcano,earthquake,typhoon,hurricane,tsunami,desertification,sandstorm,tornado, droughtHow do they damage the environment?Sample answers:The ashes of the volcano eruption will engulf the region around. Vegetations in its path will be totally wiped out.The tsunami that ravaged South-east Asian countries in December xx proved just how destructive nature can be .Thousands of people died while thousands more were left homeless.2. However, besides natural disasters, man also causes a lot of damage to the earth. Look at the six pictures at page 21 , describe each picture and use your imagination to explain the possible cause. Picture 1There is smoke ing out of the chimney. Suppose this factory is in your neighbourhood, how do you think the smoke will affect you? pared to the economic benefits a factory can bring to a neighbourhood, how important is environmental protection?Why?Picture 2What can you see in the picture? Why do people chop down so many trees every year? What can human and the environment benefit from trees?What will happen if we continue chopping down so many trees?What can we do to prevent this from happening?Picture 3It is reported that every year the losses caused by forest fires amount to millions of dollars. In your opinion, what might be the reasons for the terrible forest fire in the picture?Who should take the responsibility for taking good care of the forest? Do you think the forest plays an important part in balancing nature?Picture 4Have you ever experienced any sandstorms or have you ever seen some on TV? Whenever we talk about sandstorms, what kinds of images will occur in your mind?What measures has our government taken to make our environment better?Picture 5Do you prefer to live with a factory nearby? Why or why not?Sometimes we can read such kind of report. All the fish in a fish pond are killed by the poisonous waste and polluted water poured from the factory nearby. What do you think of the phenomenon? Who should be blamed for this?If you were in charge of the factory, how would you deal with it and how would you pensate for the damage?Picture 6How do you feel when you see piles of rubbish like this? In your daily life, how do people deal with everyday rubbish?Do you think rubbish is a big problem for the environment?For reference:On average, an earthquake strikes the British Isles every four days.10% of the worlds population live under threat from the 1,511 active volcanoes.There are more tornadoes per square mile each year in Britain than the USAIn Britain, five million people in two million homes live in flood prone areasDroughts starve the land of nourishment, replacing them with mineral salts.Step3: Discussion:1. Are there any other ways in which people damage the environment?Sample answer:People working in the agricultural industry can damage the environment without even realizing it. For example, fertilizers and pesticides are often used to stimulate the growth of crops and to kill insects. However, when these chemical substances are discharged into rivers and lakes, plants and animals are often killed. In some areas where the river is polluted because of these chemicals the people living there are affected. They bee ill and often develop incurable diseases after they consume the toxic substances in their drinking water.Did you do anything bad for the environment in your daily life?What should we do to protect the environment in our daily life?1. Use the handkerchief instead of the paper napkin.2. Use paper bag instead of plastic bag. 3. Dont use one-off chopsticks.4. Go to work on foot or by bike not by car.5. Throw cans, bottles, paper and plastic into the dustbin. Step4: Homework:1. Collect more information about natural disasters or human conducts that cause damage to our environment.2. Prepare the Reading part.