1、Unit 22 Environmental ProtectionLesson 1 Global Warming Master the key words and expressions Know what the global warming is Tell of the causes and effects of the global warming Summarize the text through listening Be aware of the responsibility to help slow down global warmingObjectivespolar meltin
2、gskinny polar bearShrinking oceanwildnessflooding droughtPovertynatural disastersvolcanic eruptionsEarthquakes1 1.What is it?.What is it?2.Whats the impact of it?2.Whats the impact of it?3.What has caused it?3.What has caused it?4.What can we do to slow it down?4.What can we do to slow it down?How m
3、uch do you know about global warming?II.Match the meanings of following words.consensusbounceagriculturecoincidence2p6 a remarkable concurrence of events by chance the science or practice of farmingmove quickly up,back,or away from a surface after hitting a general agreementcondemnreservationsacrifi
4、ceadvocate to give a particular punishment,especially death to give up(something important or valued)because of other considerations to recommend or support publiclythe action of reserving somethingfor general ideas Match the headings.Para.1Para.2 Para.3Para.4Para.5What causes global warmingWhat is
5、global warmingThe introduction of the topicSolutionResults of global warming forspecific information1)Which of the following is TRUE about greenhouse gases?A.Greenhouse gases will only do us harm.B.Greenhouse gases do more harm than good to humans.C.Greenhouse gases do more good than harm to humans.
6、D.Proper greenhouse gases are quite necessary to the earth.2)Which of the following is NOT mentioned as the result of global warming?A.Typhoons.B.Serious diseases.C.Polar ice melting.D.Heat waves.I.Choose the best answer.III.Answer these questions.3p71.What is global warming?2.What human activities
7、are causing global warming?3.By how much has the global average temperature increased in the last 100 years?4.Are greenhouse gases necessary for life on Earth?5.How can we help solve the problem of global warming?1.What is global warming?2.What human activities are causing global warming?Global warm
8、ing is an average increase in the Earths temperature that leads to climate change.Industry,agriculture,the cutting down of forests,the increase in transport and the burning of fuels are causing global warming.3.By how much has the global average temperature increased in the last 100 years?4.Are gree
9、nhouse gases necessary for life on Earth?By 1F(One degree Fahrenheit)Yes,they are.Because they trap heat from the sun in the Earths atmosphere.Otherwise the Earth would be cold and unsuitable for life.5.How can we help solve the problem of global warming?We can make small changes like taking public
10、transport,recycling,using low-flow shower heads,buying light bulbs that use less energy,using recycled paper,and switching off the lights when we leave a room.6.What are the would-be consequences of global warming?It will cause more frequent flooding,heat waves and droughts.Serious diseases will spr
11、ead and industries that rely on nature such as fishing will be badly affected.It will also cause the polar ice to melt,raising sea levels,and flooding many islands and cities.Listening Global warming refers to an averageincrease in the Earths temperature that,(1)_,leads to climate change.In the last
12、 50 years,gases(2)_ the Earths atmosphere by the factories and vehicles have been(3)_ the process of global warming.Many experts(4)_ for the global warming _ human activities,such as increased industry,agriculture,the cutting downGlobal Warmingin turnspeeding uppin the blame onpumped intoFill in the
13、 blanks and try to retell.of forests,the increase in transport and the burning of fuels.Global warming will(5)_ terrible climate changes including frequent flooding,heat waves anddroughts.Increased temperature will also cause the polar ice to melt,(6)_ sea levels and flooding many islands and cities
14、.How can we help solve the problem of global warming?Governments all over the world(7)_ reducing the amount of carbon dioxide which their countries are producing.Experts suggestraisingare responsible forcausethat each person(8)_ their part by making small changes like takingpublic transport,recyclin
15、g,using low-f lowshower heads,etc.If all these small changes are(9)_,there could be big changes that(10)_ our future.playadded up saveWhat can we do?public transportlow-flow shower headenergy-saving light bulbsrecycled paperswitch offWhat will you do to help What will you do to help reduce greenhous
16、e gases in reduce greenhouse gases in your daily life?your daily life?On reducing greenhouse gases,a persons action is not enough.However when that action is united by the 1.4 billion people in China or the 7 billion people worldwide,the savings are significant.Underline the key words and expressions you are not familiar with in this lesson and refer to a dictionary when necessary.Write a short passage about:Which countries do you think contribute more to it,developed countries or developing countries?Thank you!
