人教新课标选修六 Unit 4 Global warmingListening and speaking[课件]

1、 Unit 4 Global warmingTeaching goals Be able to talk about different sources of energy and express your own ideas. learn how to give their your about the use of energy. Words learningenergy disagreement light fossil fuel heat nuclear renewable non-newable consume blame run out We depend on energy to

2、 do many things in our daily lives. Make a list of the things that consume energy in your home, school or any other places.things that use energy in our life heatingcomputer fridge television hairdryer camerathings that use energy in our life washing machine electromagnetic oven electric fanWhere do

3、es the energy come from?Energy sources:Renewable sources: Non-renewable :Make a list of energy sources. renewable and non-renewable sources.energy sources that never run out.energy sources that will run out one day.Wind energy is used as power to produce electricity . Windmillswhere electricity is p

4、roduced by burning coals.The coal power stationsin which oil is refined and made pure. The oil refineriesa facility designed to convert nuclear energy into electricity.A nuclear power plant on the roof of a house on a bright sunny day are used to collect solar energy, making your house warm or heati

5、ng your water.Solar panelsare used to keep back water and raise its level for irrigation or for producing electricity, etc.The Hydro-electric damsWhich energy sources on your list are renewable and which are non-renewable?Sources of energy Renewable/non- renewablecoaloilnatural gaswind (wind power)s

6、un (solar energy)uranium (nuclear energy)water (hydro-electric power)plant waste (biomass energy)hot spring or geysersthe sea (tidal energy)non-renewablenon-renewablenon-renewablerenewablerenewablenon-renewablerenewablerenewablerenewablerenewableListening1 Listen to the tape and decide which stateme

7、nts Professor Keeling does NOT agree with.1. We should stop depending on fossil fuels for our energy.2. 90% of our energy comes from fossil fuels.3. We can replace fossil fuels with cleaner sources of energy.4. Nuclear power is a good source of energy.2 Listen to part 2 again and fill in the blanks.

8、LI BIN: What about _? They dont cut down on their use of _.energyfactoriesKEELING: No, they dont. However, that is a _ we must work on as a _ community. That means _ and _countries will have to work blemglobaldevelopeddevelopingLI BIN: But its not the _ countries that put most of the car

9、bon _ into the air. The developed countries are really the ones to _.developingdioxideblamePart 2L: So what CAN we do?K: Well, there are three things. First we must find ways of using fossil fuels that wont put carbon dioxide into the air. Second, we must produce products that are economical with en

10、ergy. Third, we must ask people to cut down on the energy they use.L: But thats on a personal level. What about factories? They dont cut down their use of energy. K: No, they dont. However, that is a problem we must work on as a global community. That means developed and developing countries will ha

11、ve to work together.L: But its not the developing countries that put most of the carbon dioxide into the air. The developed countries are really the ones to blame.K: Thats true. So we must work together because global warming will affect everyone. If we want the future generations to have a good lif

12、e, we must ALL look after the planet.carbon emission reduction Every coin has two sides. Energy lights our cities and heats our buildings. Meanwhile, many kinds of energy sources cause pollution. How to deal with it?renewable energy sources1. Reduce the burning of fossil fuels 2. Plant trees 3. Use bags that can be recycled What more things can you do?The minimum effort is also a kind