1、Unit 4 Global warming：Warming upUnit4Teaching period2TopicGlobal warmingstyleWarming upAims1.Learn and grasp the pronunciation of the words1. 2.Learn the usage of the words and the expressions.Warming up1、The effects of global warming: cause the sea level to rise; severe storms; droughts; famine; cr
2、ops will produce more; destruction of species; make plants grow faster; flood; make life better Positive effects:_ _ _Negative effects:_ _ _2、 Things that use energySources of energyRenewable/nonrenewable lightsheating television cassette player video recorder computer fridge stove hairdryer .coaloi
3、l natural gaswind power solar energy nuclear energy hydroelectric power biomass energy geothermal energy tidal energyReading comprehension:The problem of global warming has caused a lot of people to get started on increasing their campaigns to save the Earths ecological system.The trouble is that ne
4、arly all people think it even expensive to begin living green.Continue reading to see several immediate things you can do to get on the road to living green. You can get on a great start by learning to recycle.While this appears really simple，there are many people who still toss glass bottles and al
5、uminum cans into their common garbage.In the US，its easy to locate a trash service that has glass and aluminum recycling alternatives.If you take a few seconds to wash the cans and bottles and put them in the recycle bin，you will be on the path to saving the Earth. One more big waste product is news
6、papers. Majority of people will merely take their newspaper and toss it in the garbage when they finish reading it.Still there are many other things you can do with an old newspaper when you finish reading it.For instance，newspapers make terrific material for cleaning windowpanes.You can clean your
7、windows with newspapers rather than paper towels and window cleaner for a streak-free shine. What else you can do to get started living green is to start walking a bit more.Many people think nothing of getting in their car and driving one block to get soda at the local convenience store.If you merel
8、y walk to the store，not only could it take less time，because you wont have to try to find a parking place，but you will be saving money on petrol and helping to save the planet by not burning those fuels.If you wish to save even more on fuel，take the chance to join the car pool whenever you can and j
9、ust mow your lawn twice a month instead of weekly.1. What is the main purpose of Paragragh 1？ A. To tell us that many people are living green. B. To express worries about global warming. C. To advise people to learn how to live green. D. To call on people to live an easy life.2. The author thinks th
10、at_. A. many people cant recycle glass bottles properly B. cans and bottles are usually washed before recycled C. it is rather difficult to recycle cans and bottles D. people would like to throw the wastes everywhere3. The underlined phrase“car pool”in the last paragraph probably refers to_. A. a po
11、ol where cars can park B. a good way to avoid traffic jams C. a group of people sharing the same car D. an organization to protect the environment4. What is the main idea of the passage？ A. It may cost us much more to live a green life. B. Going green is much simpler than people think. C. A lot of things can be reused in our life. D. People are living a much better life than before.
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