第一节阅读必修6Unit4Globalwarming.ppt

必修6 Unit 4 Global warming 1.We depend on energy to do many things in our lives. Can 1.We depend on energy to do many things in our lives. Can you tell me the things that consume energy ? you tell me the things that consume energy ? Let us count them :Let us count them :light ; heating ; water heating ; hairdryer; electric fan ; light ; heating ; water heating ; hairdryer; electric fan ; television ; recorder; fridge ; stove ; washing machine….and television ; recorder; fridge ; stove ; washing machine….and so on .so on .2.Do you know how many2.Do you know how many kinds ofkinds of energy are there ?Can you energy are there ?Can you count them?count them?coal( coal( 煤煤 ) oil() oil(石油石油) natural gas() natural gas(天然气天然气) wind power () wind power (风能风能) ) solar energy(solar energy(太阳能太阳能) nuclear energy() nuclear energy(原子能原子能) water (hydro-) water (hydro-electric powerelectric power水力发电水力发电) plant waste( biomass energy) plant waste( biomass energy生物质能生物质能) hot springs( geothermal energy) hot springs( geothermal energy地热能地热能) )the sea ( tidal energythe sea ( tidal energy潮汐能潮汐能) )3.Sources of energy can be divided into renewable(3.Sources of energy can be divided into renewable(能再生的）能再生的） and non-renewableand non-renewable（不能再生的）（不能再生的）4.Can you distinguish the sources of energy above ?which are 4.Can you distinguish the sources of energy above ?which are renewable energy and which are non-renewable?renewable energy and which are non-renewable? Distinguish(区分）•Renewable(能再生的）•Wind power（风能）•Solar energy（太阳能））•Water（水）•Biomass energy（生物质能）•Geothermal energy（地热能）•Tidal energy（潮汐能）•Non-renewable(不能再生的)•Coal（煤）•Oil（石油）•Natural gas（天然气）•Nuclear energy（原子能）Now look at page 25 textbook and answer the questions 1.What is renewable energy ?and what is non-renewable?2.What is greenhouse?3.What are greenhouse gases?4.What do you think of greenhouse gases do?(They trap the heat of the sun and keep the air surrounding the earth warm)。