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1、Unit 8 Focus on Global WarmingText comprehensionI. AII. 1. T;2. T;3. F;4. F;5. F.III.1. Paragraph 2. Because global warming may be the single largest threat to our planet（the earth）. Low-lying nations could be awash in seawater, rain and drought patterns across the world could change, hurricanes cou
2、ld become more frequent, and El Ninos could become more intense.2. Paragraph 3. Our factories, power plants, and cars burn coal and gasoline and spit out carbon dioxide, produce methane by allowing our trash to decompose in landfills and by breeding large herds of methane-belching cattle, and releas
3、e nitrogen oxide by using nitrogen-based fertilizers.3. Paragraph 4. The increased concentrations of greenhouse gasespreventadditional thermal radiationfromleaving the Earth, so cause the global warming.4. Paragraph 7. A slight increaseinheat and rain in equatorial regions would increase vector-born
4、e带菌媒介引起的diseases such as malaria; more intense rains and hurricanes could cause more severe flooding and more deaths in coastal regions and along riverbeds; even a moderate rise in sea level could threaten thelow-lying islands; hotter summers couldlead tomore cases of heatstroke, hospital admissions
5、 and deaths among vulnerable people with heart problems or respiratory problems.5. Paragraph 8 and 10. We cancurbour consumption of fossil fuels and use technologies to reduce the emission of heat-trapping gases likecarbon二氧化碳dioxide, methane, andnitrous oxides, and protect the forests in the world,
6、 and we can also advocate policies that will combat global warming over the long term, things like clean cars,environmentally responsiblerenewable energy technologies, and stopping theclear-cuttingof valuable forests.IV.1. Global warming will probably be the most serious threat to our Earth, if we d
7、o not take into account of some other possible disasters, such as another world war, collision of our Earth with some small orbiting planet, or spread of incurable diseases.2. In terms of human health, the people of the poorer countries will suffer most, because their countries do not have money to
8、protect them when climate changes.Structural analysisSub-ideas in the second part.1) thecausesof the rising concentration of greenhouse gases in the atmosphere (Paragraphs 3 and 4)2) theeffectof such concentration on climate change (Paragraphs 5 and 6)3) the potentialthreatof global warming to human
9、 health and survival (Paragraph 7)Part one. Vocabulary1Phrase1. with the exception of: except, apart from除之外，不包括在内2. In essence = essentially, basically本质上，根本上3. wherever possible:wheneverit is possible只要可能4. over the long term: over a long period从长远看5. alternative = substitutable, different, replac
10、eableII.1. focus; 2. much the same; 3. consciousness; 4. threat; 5. deserved; 6. decomposed; 7. revealed; 8. frequent.III. Word derivationFill in the blanks with the appropriate forms of the given words.1. Her natural good sense was improved by the perusal (peruse) of the best books.2. Efforts to re
11、ach the injured men have been intensified (intense) because of a sudden deterioration of weather conditions.3. I knew he deserved to be punished but making him stay in every night for a year is a little excessive (excess).4. Theories of the origin of life are partly speculative (speculate), since th
12、ere is so little direct evidence available.5. This is a book that contains an abundance (abundant) of valuable information.6. The cost of the flights, accommodation and car rental is two thousand dollars inclusive (include).7. When an iron object is heated in a fire, it glows red and emits (emission
13、) radiation.8. We hardly ever go into London. Whatever we need we can buy locally (local).1. peruse v.熟读，精读perusal n.熟读，精读；仔细研究e.g.他每天都要读各种报纸。He perused the newspapers every day.2. intense a.强烈的，剧烈的，热烈的intensify v.增强，强化；加剧intensive n.强烈的；密集的intensification n.增强，加强，强化e.g.我的工作非常紧张，以至于我没有时间休息。My work i
14、s so intense that I even have no time to take a rest.我的初次失败更坚定了我成功的信念。My first failure only intensified my desire to succeed.我们有十天的强化训练。We have ten days of intensive training.3. excess a.过量的，额外的excessive a.过多的，过分的e.g.这个胖男孩节制饮食以减轻过量的体重。The fat boy went on a diet to get rid of his excess weight.4. spe
15、culate v.推测，好奇speculation n.沉思，推测；投机speculative a.推测的，推理的；投机的speculator n.投机者，投机商人e.g.我猜想的全错了。My speculations proved totally wrong.他是一个冷酷的投机者。He is a ruthless speculator.5. abundant a.丰富的，充裕的abundance n.丰富，充裕abundantly ad.大量地，丰富地e.g.今年的农产品很丰富。The agricultural commodities are abundant this year.这个国家拥有丰富的资源。This country has an abundance of valuable resources.6. include v.包括，包含including prep.包含，包括inclusive a.包含在内的，包罗广泛的e.g.账单中包含服务费。The bill includes service.他们有很多宠物，狗就有三只。They have
