1、Consequences of Global WarmingThe latest scientific data show that the earths climate is changing rapidly.Global temperatures increased by about one degree Fahrenheit during the last century,and will likely rise even more rapidly in the coming decades.Whats the cause?A thickening layer of carbon dio
2、xide mostly from power plants and automobiles traps heat in the atmosphere.Here are some consequences of global warming：Climate pattern changeHeat waves will be more severe and happen more often.Warmer temperatures could also increase the probability of drought and wildfire.Warmer temperatures incre
3、ase the energy of the climatic system and lead to more serious rainfall at some times and in some areas.Health effectsMore severe heat waves could result in more heat-related deaths.Global warming is expected to increase the potentialgeographic range and viruses of tropical diseases as well.Diseases
4、 carried by mosquitoes will widen their range.Warming waterSea levels will rise,flooding coastal areas.Warmer water in the oceans pumps more energy into tropical storms,making them more serious and potentially more destructive.Rising global temperatures will speed the melting of glaciers and ice cap
5、s,and cause rivers and lakes rise.Ecosystem destroyedThe increase in global temperatures is expected to destroy ecosystems and result in loss of some species.多积词汇consequence n 结果；后果；影响climate n.气候atmosphere n.大气层drought n.旱灾；干旱potential adj.潜在的；可能的geographic adj.地理的；地理学的destructive adj.破坏性的ecosystem
6、 n.生态系统Section Warming Up&Reading Pre-reading读文清障原文呈现THE EARTH IS BECOMING WARMER BUT DOES IT MATTER?During the 20th century the temperature of the earth rose about one degree Fahrenheit.That probably does not seem much to you or me,but it is a rapid increase when compared to other natural changes.S
7、o how has this come about and Fahrenheit/frnhaIt/adj.华氏的 n.华氏温度计compared to 与相比 when compared to.是“when过去分词”结构，也可看作时间状语从句的省略，补充完整为 when it is compared to.。come about 发生；造成，为不及物动词短语。读文清障原文呈现does it matter?Earth Cares SophieArmstrong explores these questions.There is no doubt that the earth is becomin
8、g warmer(see Graph 1)and that it is human activity that has caused this global warming rather than a random but natural phenomenon.Sophie/sfI/索菲(女名)Armstrong/mstr/阿 姆 斯特朗(姓)graph/rf/n.图表；坐标图；曲线图random/rndm/adj.胡乱的；任意的 phenomenon/fInmInn;US fnmnn/(复数-ena/-In；-n/)n.现象地球在变暖但是这会带来什么影响吗？第 12 段译文在 20 世纪期间
9、，地球温度大约上升了 1 华氏度。这个数值对你我来说很可能是无所谓的，但是跟其他自然变化相比较而言，这却是一种快速的增长。那么，这种温度的增长是怎么产生的呢？会产生什么影响吗？“关爱地球”组织的索菲阿姆斯特朗就在探究这些问题。毫无疑问，地球在变暖(见曲线图一)，而全球变暖正是人类活动导致的，并非一种随意的自然现象。读文清障原文呈现10 subscribe to 同意；赞成；订购subscribe/sbskraIb/vi.同意；捐赠；订阅 vt.签署(文件)；捐助fossil/fsl/n.化石；从地下采掘出来的(矿物)fuel/fjul/n.燃料that the increase.is due
10、to.是that 引导的同位语从句，对 the view 作进一步的解释和说明。byproduct/baIprdkt/n.副产品the most important one of which.是“代词ofwhich”引导的非限制性定语从句。All scientists subscribeto10 the view that the increase in the earths temperature is due to the burning of fossil fuelslike coal,natural gas and oil to produce energy .Some byprodu
11、cts of this process are called“greenhouse”gases,the most important one of which is carbon dioxide.读文清障原文呈现Dr Janice Foster explains:“There is a natural phenomenon that scientists call the greenhouse effect.This is when small amounts of gases in the atmosphere,like carbon dioxide,methane and water va
12、pour,trap heat from the sun and therefore warm21 the earth.Without the greenhouse effect22，the earth would be about thirty-three degrees Celsius23 cooler than it is.So,we Janice/dnIs/贾尼丝(女名)Foster/fst/福斯特(姓或男名)that scientists call.是 that 引导的定语从句，修饰 a natural phenomenon,that 在从句中作call 的宾语。when small
13、amounts of gases 至本句末是 when 引导的表语从句。methane/mieIn/n.甲烷；沼气 21 warm vt.(使)变暖22 画线部分是 without 引导的含蓄虚拟条件句。23 Celsius/selsIs/adj.(温度)摄氏的读文清障原文呈现need those gases.The problem begins when we add huge quantities of24 extra carbon dioxide into the atmosphere.It means that more heat energy tends25 to be trappe
14、d in the atmosphere causing the global temperature to go up26.”24 quantities of大 量 的 quantity/kwnttI/n.量；数量25 tend/tend/vi.趋向；易于；照顾 vt.照顾；护理tend to do 倾向于/往往做26 go up 上升；增长；升起第 3 段译文 所有的科学家赞同这种观点：人们为了取得能量而燃烧化石燃料如煤、天然气和石油，从而引起了地球温度的升高。这个过程燃烧化石燃料的一些副产品就叫作“温室”气体，其中最重要的就是二氧化碳。贾尼丝福斯特博士解释说：“有一种科学家称之为温室效应的
15、自然现象。这种现象就是大气层中少量的气体如二氧化碳、甲烷、水蒸气等吸收太阳的热量，因而使地球变暖。如果没有这种温室效应，地球的温度将比现在的温度还要低 33 摄氏度左右。因此，我们需要那些气体。当我们在大气层中增加了大量额外的二氧化碳时，问题就来了。这意味着更多的热量有被困在大气层中的倾向，从而引起全球气温上升。”读文清障原文呈现27 Charles Keeling/kilI/查 尔斯基林28 measurement/memnt/n.衡量；测量；尺寸make/take measurements 作测量take sb.s measurement 给某人量尺寸29 the amount of.的数
16、量30 per/p/prep.每；每一We know that the levels of carbon dioxide have increased greatly over the last 100 to 150 years.It was a scientist called Charles Keeling27，who made accurate measurements28 of the amount of29 carbon dioxide in the atmosphere from 1957 to 1997.He found that between these years the
17、carbon dioxide in the atmosphere went up from around 315 parts to around 370 parts per30 million(see Graph 2)读文清障原文呈现31 data/deIt，dt/n.资料；数据a mass of data 大量资料data bank 数据库；资料库32 result in 导致result in 后跟结果，而 result from 后跟原因。All scientists accept this data31.They also agree that it is the burning of
18、 more and more fossil fuels that has resulted in32this increase in carbon dioxide.So how high will the temperature increase go?Dr Janice Foster says that over the next 100 years the amount of warming could be as low as 1 to 1.5 degrees Celsius,but it could be as high as 5 degrees.第 45 段译文我们知道，在过去 10
19、0150 年期间，二氧化碳的含量急剧增加了。有一位名叫查尔斯基林的科学家曾经把 19571997 年期间大气层中二氧化碳的含量作了精确的统计。他发现，在这些年里，大气层中的二氧化碳含量从大约 315/1 000 000 上升到大约 370/1 000 000(见曲线图二)。所有科学家都接受这个数据。他们还赞同下述观点：正是燃烧越来越多的化石燃料导致了二氧化碳的增加。那么气温会升到多高？贾尼丝福斯特博士说，在今后的 100 年里，全球变暖的量可能低到 11.5 摄氏度，但是也有可能高达 5 摄氏度。读文清障原文呈现33 on the one hand 一方面34 trend/trend/n.趋势
20、；倾向；走向35 catastrophe/ktstrfI/n.大 灾难；浩劫36 what to expect 为“疑问词不定式”结构，在句中作 know 的宾语。However,the attitudes of scientists towards this rise are completely different.On the one hand33，Dr Foster thinks that any trend34 in which the temperature increases by 5 degrees would lead to a catastrophe35.She says,
21、“We cant predict the climate well enough to know what to expect36，but it could be very serious.”Others who agree with her think there may be a rise of several metres in the sea level,or predict severe storms,读文清障原文呈现37 flood/fld/n.洪水；水灾38 drought/drat/n.旱灾；干旱39 famine/fmIn/n.饥荒40 George Hambley/hmbl
22、I/乔治汉布利41 be opposed to 反对opposed/pzd/adj.反对的；对立的oppose/pz/vt.反对；反抗；与(某人)较量floods37，droughts38，famines39，the spread of diseases and the disappearance of species.On the other hand,there are those,like George Hambley40，who are opposed to41 this view and believe that we should not worry about high leve
23、ls of carbon dioxide in the air.They predict that any warming 读文清障原文呈现will be mild42 with few bad environmental43consequences44.In fact,Hambley states45，“More carbon dioxide is actually a positive thing.It will make plants grow quicker;crops will produce more;it will encourage a greater range46 of a
24、nimals all of which will make life for human beings better.”42 mild/maIld/adj.温和的；温柔的；淡的43 environmental/InvaIrnmentl/adj.环境的44consequence/knsIkwns;US-kwens/n.结果；后果；影响45 state/steIt/vt.陈述；说明46 range/reInd/n.种类；范围读文清障原文呈现Greenhouse gases continue to build up47 in the atmosphere.Even if48 we start red
25、ucing the amount of carbon dioxide and other greenhouse gases,the climate is going to keep on49 warming for decades or centuries.No one knows the effects of global warming.Does that mean we should do nothing?Or,are the risks too great？47 build up 增加；逐步建立；增进48 even if“即使”，引导让步状语从句。49 keep on 继续第 67 段
26、译文 然而，科学家们在对待升温的态度上却是大不相同的。一方面，福斯特博士认为任何气温升高 5 度的趋势都可能导致一场大灾难，她说：“对于未来的气候，我们不可能作出精确的预测，但是那时的天气可能是很糟糕的。”同意她的观点的其他科学家认为，全球变暖会导致海平面上升好几米；也有人预言会出现严重的风暴、洪涝、干旱、饥荒、疾病的传播和物种的灭绝。另一方面，有一些科学家，像乔治汉布利，反对这种观点，他们认为我们不必担心空气中高含量的二氧化碳。他们预测任何变暖的情况不会很严重，对环境的影响也不会太坏。汉布利实际上是这样说的：“二氧化碳含量的增加实际上是件好事，它会使植物生长更快，庄稼产量更高，还会促进动物种
27、类的增多所有这些都能改善人类的生活。”,温室气体继续在大气层中增加。即使我们开始减少二氧化碳和其他温室气体的含量，在未来几十年或几个世纪内，气候仍会持续变暖。没有人知道全球变暖会带来什么样的影响。这是不是意味着我们就不必采取任何措施呢？还是说，这样不采取任何措施危险性会很大呢？.Match the word with its meaning.1consume A同意；捐赠2phenomenon B消费；消耗；耗尽3subscribe C燃料4fuel D现象5glance E反对；反抗6oppose F陈述；说明7consequence G结果；后果；影响8state H看一下；扫视答案：15
28、 BDACH 68 EGF.Write down the meanings of phrases in each sentence.1Some of the best ideas in the history of business have come about in strange ways.2It meant that you could subscribe to the local paper to get all your news.3He said that property values could only go up._4His hard work resulted in h
29、is great discoveries in science._5If you keep on breaking the rules,you will be fired.产生订阅上升导致继续.Look at the pictures and answer the question.What can you learn from the above four pictures?_The earth is becoming warmer and warmer.Which of the following can cause global warming?答案：ACDE.Fast-reading1
30、Read the text quickly and fill in the blanks.The text explains the of the earth s increasing temperature and puts forward different views about the of increasing carbon dioxide in the atmosphere.causeseffects2Skim the text and sum up the main idea of each paragraph.Para.1 Athe cause of the earth s b
31、ecoming warmerPara.2 Bthe consequence of burning fossil fuelsPara.3 Cthe increase of carbon dioxidePara.4 Dglobal warming will go onPara.5 Epuzzles about global warmingPara.6 Fdifferent attitudes to global warmingPara.7 Gan introduction to the passage答案：Paras.17 GABCDFE.Careful-reading1Read the text
32、 carefully and fill in the blanks.one degreeFacts aboutglobal warmingThe temperature of the earth rose about(1)_ Fahrenheit during the 20th century.The global warming is caused by(2)_ rather than a random but natural phenomenon.Views onglobalwarmingJaniceFosterSmall amounts of gases in the atmospher
33、e(3)_ heat from the sun and therefore warm the earth.We need the gases because without them the earth would be about thirtythree degrees Celsius(4)_ than it is.If we add huge(5)_ extra carbon dioxide into the atmosphere by burning fossil fuels,it will cause the(6)_ to go up.human activitytrapcoolerq
34、uantities ofglobal temperaturecatastropheViews onglobalwarmingJaniceFosterOver the next 100 years the amount of warming could be as low as 1 to 1.5 degrees Celsius,but it could be as high as 5 degrees.An increase of 5 degrees in the temperature would be a(n)(7)_.CharlesKeelingFrom 1957 to 1997,the c
35、arbon dioxide in the atmosphere went up from about 315 parts to about 370 parts per million.GeorgeHambleyWe shouldn t worry about(8)_ of carbon dioxide in the air.Any warming will be mild with few bad environmental(9)_.More carbon dioxide is actually a(n)(10)_ thing.high levelsconsequencespositive2.
36、Choose the best answer.(1)_ made accurate measurements of the amount of carbon dioxide in the atmosphere from 1957 to 1997.ADr Janice Foster BCharles KeelingCGeorge Hambley DSophie Armstrong(2)Some scientists like George Hambley think that the temperature increase will _.Acause a rise of several met
37、res in the sea levelBcause the spread of diseases and the disappearance of speciesCencourage a greater range of animalsDcause severe storms,floods,droughts and famines(3)The main difference between Dr Janice Foster s theory and George Hambley s lies in _.Ahow to prevent global warmingBwhat causes gl
38、obal warmingCwhether global warming would cause serious problems or notDwhether the levels of carbon dioxide have increased or not over the years(4)Which of the following is TRUE according to the text?AGreenhouse gases refer to some byproducts of the burning of fossil fuels.BThe global warming is a
39、random rather than natural phenomenon.CThe temperature in the last century increased by as highas 5 degrees.DFewer greenhouse gases will gather in the atmosphere.(5)The author probably agrees that _.Aactually global warming is good for manBwe should do nothing about the global warmingCcatastrophes w
40、ill happen if the globe keeps on warmingDa lot remains to be found out about the effects of global warming答案：(1)(5)BCCAD.Study-readingAnalyze the following difficult sentences in the text.1It means that more heat energy tends to be trapped in the atmosphere causing the global temperature to go up.句式
41、分析 本句是一个复合句。that 引导一个宾语从句；causing the global temperature to go up 为现在分词短语作结果状语。尝试翻译 _这意味着更多的热量将被困在大气层中，从而引起全球温度上升。2On the other hand,there are those,like George Hambley,who are opposed to this view and believe that we should not worry about high levels of carbon dioxide in the air.句式分析 另一方面，还有一些人，像科学家乔治汉布利，反对上面的观点，他们认为我们不必担心空气中会有高含量的二氧化碳。尝试翻译_ “课时跟踪检测”见“Unit 4 课时跟踪检测（一）”(单击进入电子文档)谢谢 观 看
