2018年高考英语二轮复习专题07阅读理解Ⅳ:篇章结构题(测)(含解析)

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高考英语复习专题阅读理解Ⅳ:篇章结构题

高考英语复习专题阅读理解Ⅳ:篇章结构题

专题7 阅读理解Ⅳ:篇章结构题班级姓名学号分数(测试时间:45分钟)1.The production of coffee beans is a huge,profitable business,but,unfortunately,full­sun production is taking over the industry and bringing about a lot of damage.The change in how coffee is grown from shad e­grown p roduction to full­sun production endangers the very existence of,certain animals and birds,and even disturbs the world's ecological balance.On a local level,the damage of the forest required by full­sun fields affects the area's birds and animals.The shade of the forest trees provides a home for birds and other species(物种) that depend on the trees' flowers and fruits.Full­sun coffee growers destroy this forest home. As a result,many species are quickly dying out.On a more global level,the destru ction of the rainforest for full­sun coffee fields also threatens(威胁)human life.Medical research often makes use of the forests' plant and animal life,and the destruction of such species could prevent researchers from finding cures for certain diseases.In addition,new coffee­grow ing techniq ues are poisoning the water locally, and eventually the world's groundwater.Both locally and globally, the continued spread of full­sun coffee plantations(种植园) could mean the destruction of the rainforest ecology.The loss of shade trees is already causing a slight change in the world's climate,and studies show that the loss of o xygen­giving trees also leads to air pollution and global warming.Moreover,the new growing techniq ues are contributing to acidic(酸性的) soil conditions.It is obvious that the way much coffee is grown affects many aspects of life,from the local environment to the global ecology.But consumers do have a choice.They can purchase shade­grown coffee whenever possible,although at a higher cost.The future health of the planet and mankind is surely worth more than an inexpensive cup of coffee.Which of the following shows the structure of the whole text?【推理关系】题干Which of the following shows the structure of the whole text?☞文章内容本文的第一段提出观点,其后的第二、三、四段分别从不同角度进行具体论证,最后一段是总结段。

2018高考全国II卷 英语试卷答案及解析

2018高考全国II卷 英语试卷答案及解析

2018高考全国Ⅱ卷英语试卷答案及解析2018年普通高等学校招生全国统一考试英语本试卷分第I卷(选择题)和第II卷(非选择题)两部分。

考试结束后,将本试卷和答题卡一并交回。

第I卷注意事项:1. 答第I卷前,考生务必将自己的姓名、准考证号写在本试卷和答题卡相应位置上。

2. 选出每小题答案后,用2B铅笔把答题卡上对应题目的答案标号涂黑。

如需改动,用橡皮擦干净后,再选涂其他答案标号,不能答在本试卷上,否则无效。

第一部分阅读理解(共两节,满分40分)第一节(共15小题;每小题2分,满分30分)阅读下列短文,从每题所给的四个选项(A、B、C和D)中,选出最佳选项,并在答题卡上将该项涂黑。

ASummer ActivitiesStudents should read the list with their parents/carers, and select two activities they would like to do. Forms will be available in school and online for them to indicate their choices and return to school. Before choices are finalised, parents/carers will be asked to sign to confirm their21. Which activity will you choose if you want to go camping?A. OUTB. WBPC. CRFD. POT22. What will the students do on Tuesday with Mrs Wilson?A. Travel to London.B. See a parade and fireworks.C. Tour central Paris.D. Visit the WWI battlefields.23. How long does Potty about Potter last?A. Two days.B. Four days.C. Five days.D. One week.文体:应用文主题:文章主要提供给了孩子们四种不同类型的夏日活动以及相关具体信息。

2018高考英语(通用)二轮训练:阅读理解(推理判断)含答案

2018高考英语(通用)二轮训练:阅读理解(推理判断)含答案

2018高考英语(通用)二轮训练:阅读理解(推理判断)含答案阅读理解----推理判断题推理判断题常见的命题形式:1.细节推断题(1)It can be inferred/concluded from the passage that .(2)The author strongly suggests that .(3)The writer implies but not directly states that .(4)The writer/author indicates/suggests/implies that .2.文章来源或读者对象类推断题(1)The passage would most likely be found in .(2)In which of the following publications would this passage most likely come from?(3)Where is the passage most likely to have been taken from?3.写作意图类推断题(1)What is the main purpose of the author in writing this passage?(2)The purpose of the passage is to get people to .(3)The writer writes the last paragraph in order to .4.态度倾向类推断题(1)The attitude of the author towards...is .(2)What’s the writer’s attitude towards...?(3)What does the author think about...?1.细节推断题要求考生根据语篇关系,推断具体细节,如时间、地点、人物关系、人物身份、事件等。

高三英语二轮专题复习题型五 文章结构题

高三英语二轮专题复习题型五  文章结构题

十四、文章结构题一、篇章结构题(2018·“六校联盟”第三次联考)Careers in zoology are extremely varied and unique,and can provide incredible learning and work opportunities for anyone devoted to animal studies and welfare.Zoology,or the study of animals,is a wide field with many specialties,including research,conservation,veterinary(兽医的) medicine,and the care of animals.For people with a love of animals and some training,dreams of careers in zoology may come true.Some careers in zoology focus on research and scientific studies.These careers may allow those with a good theoretical science background to develop and run studies that improve human understanding of the animal world.Research in zoology can help create safer and more effective products for animals or can teach humans more about animal behavior in order to aid in conservation,breeding programs,and habitat preservation.Careers in zoology that focus on conservation attach great importance to the continued survival and increased protection of animal species.Conservationists may work with political groups or governments to help make laws to protect and preserve animals,or may work in the field gathering information on potential threats to the health of global ecosystems.Some conservationists work in educational fields,trying to improve human efforts to save animals from extinction.Animals are subject to illness and injury,and some careers in zoology help to create a safe,stable animal population.Veterinary medicine is an important specialty field,and may take several years of intensive training to qualify as a certified veterinarian.While many veterinarians focus on the small-animal practice of domestic pets,vets in rural areas often work with large farm animalsand more adventurous veterinarians may work with exotic species in zoos and wildlife preserves.Humans love to observe animals,and modern-day zoos and wildlife preserves help meet that interest while providing facilities to assist with conservation programs.Zoology careers in zoos can range from overseeing breeding programs,to creating the proper diet for a deer,or to cleaning the tiger’s cage.Many volunteer and entry-level jobs are available for people that love animals.语篇解读文章介绍了动物学相关职业的多样性,并就四种相关的职业进行了具体讲解。

高考英语-阅读理解Ⅳ:篇章结构题(测)-专题练习(七)有答案

高考英语-阅读理解Ⅳ:篇章结构题(测)-专题练习(七)有答案

高考英语专题练习(七)阅读理解Ⅳ:篇章结构题(测)There are many places to go on safari(观赏野生动物)in Africa, but riding a horse through the flooded waters of Botswana’s Okavango Delta must rank as one of the world’s most exciting wildlife journeys.Several safari camps operate as the base for this adventure, providing unique rides twice a day to explore deep into the delta. The camps have excellent horses, professional guides and lots of support workers. They have a reputation for providing a great riding experience.The morning ride, when the guides take you to beautiful, shallow lakes full of water lilies, tends to be more active. It is unlike any other riding experience. With rainbows forming in the splashing water around you and the sound of huge drops of water bouncing off your body and face, it is truly exciting. You are very likely to come across large wild animals, too. On horseback it is possible to get quite close to elephants, giraffes and many other animals. The sense of excitement and tension levels rise suddenly though, as does your heart rate, as you move closer to them.In the evening, rides are usually at a more relaxed and unhurried pace, with golden light streaming across the grassy delta and the animals coming out to eat and drink. Sedate though they are, rides at this time of day are still very impress ive. As the sun’s rays pass through the dust kicked up by the horses, the romance of Africa comes to life.Back at the camp you can kick off your boots and enjoy excellent food and wine. Looking back on your day, you will find it hard to deny that a horseback safari is as close as you will ever come to answering the call of the wild.2.The author introduces the riding experience in the Okavango Delta mainly by________.A.following space orderB.following time orderC.making classificationsD.giving examples3.Technological change is everywhere and affects every aspect of life, mostly for the better. However, social changes are brought about by new technology are often mistaken for a change in attitudes.An example at hand is the involvement of parents in the lives of their children who are attending college. Surveys (调查)on this topic suggests that parents today continue to be “very” or “somewhat” overly-protective even after their children move into college dormitories. The same surveys also indicate that the rate of parental involvement is greater today than it was a generation ago. This is usually interpreted as a sign that today’s parents are trying to manage their children’s lives past the point where this behavior is appropriate.However, greater parental involvement does not necessarily indicate that parents are failing to let go of their “adult” children.In the context(背景)of this discussion, it seems valuable to first find out the cause of change in the case of parents’ involvement with their grown children. If parents of earlier generations had wanted to be in touch with their college-age children frequently, would this have been possible? Probably not. On the other hand, does thepossibility of f requent communication today mean that the urge to do so wasn’t present a generation ago? Many studies show that older parents —today’s grandparents — would have called their children more often if the means and cost of doing so had not been a barrier.Furthermore, studies show that finances are the most frequent subject of communication between parents and their college children. The fact that college students are financially dependent on their parents is nothing new; nor are requests for more money to be sent from home. This phenomenon is neither good nor bad; it is a fact of college life, today and in the past.Thanks to the advanced technology, we live in an age of bettered communication. This has many implications well beyond the role that parents seem to play in the lives of their children who have left for college. But it is useful to bear in mind that all such changes come from the technology and not some imagined desire by parents to keep their children under their wings.3.Which of the following shows the development of ideas in this passage?()4.【贵州省遵义航天高级中学高三第四次模拟】When should people be made to retire? 55? 65? Should there be a compulsory age limit?Many old people work well into their 70s and 80s, running families, countries or corporations. Other people, however, despite being fit and highly talented, are forced to retire in their fifties or even earlier because of the regulations of a company or the nation. This essay will examine whether people should be allowed to continue working as long as they want or whether they should be encouraged to retire at a particular stage.Some people think there are several arguments for allowing older people to continue working as long as they are able. First of all, older employees have an immense amount of knowledge and experience which can be lost to abusiness or organization if they are made to retire. A second point is that older employees are often extremely loyal employees and are more willing to carry out company policies than younger less committed staff. However, a more important point is regarding the attitudes in society to old people. To force someone to resign or retire at 60 indicates that the society does not value the input of these people and that effectively their useful life is over. Age is irrelevant to a working life, surely if older employees are told they cannot work after 60, this is age discrimination. That they become old does not necessarily mean they are going to be sick. Old people could be more aware, experienced and committed than some youngsters.Others, however, think that allowing older people to work indefinitely is not a good policy. Age alone is no guarantee of ability. Old people are only ambitious workaholics who are too selfish and self-centered to believe that a younger person could do better. Actually, many younger employees have more experience or skills than older staff, who may have been stuck in one area or unit for most of their working lives. Having compulsory retirement allows new ideas in an organization. In addition, without age limits, however, many people would continue to work purely because they did not have any other plans or roles. A third point of view is that older people should be rewarded by society for their life’s labor by being given generous pensi ons and the freedom to enjoy their leisure. We now have youngsters who can’t find jobs because old people are choosing not to retire. Old people are not retiring because this new generation of “old people” think they will never die due to modern advances i n medicine.With many young people unemployed or frustrated in low-level positions, there are often calls to compulsorily retire older workers. However, this can affect the older individual’s freedom and right to work and can deprive(剥夺)society of valuable experience and insights. I feel that giving workers more flexibility and choice over their retirement age will benefit society and the individual.4.The passage is arranged as follows ________5.【陕西省咸阳市武功县高三上学期摸底考试】Salvador Dali (1904-1989)was one of the most popular of modern artists. The Pompidou Centre in Paris is showing its respect and admiration for the artist and his powerful personality with an exhibition bringing together over 200 paintings, sculptures, drawings and more. Among the works and masterworks on exhibition the visitor will find the best pieces, most importantly The Persistence of Memory. There is also L’Enigme sans Fin from 1938, works on paper, objects, and projects for stage and screen and selected parts from television programmes reflecting the artist’s showman qualities.The visitor will enter the World of Dali through an egg and is met with the beginning, the world of birth. The exhibition follows a path of time and subject with the visitor exiting through the brain.The exhibition shows how Dali draws the viewer between two infinities(无限). “From the infinity small to the infinity large, contraction and expansion coming in and out of focus: amazing Flemish accuracy and the showy Baroque of old painting that he used in his museum-theatre in Figueras,” explains the Pompidou Centre.The fine selection of the major works was done in close collaboration(合作)with the Museo Nacional Reina Sofia in Madrid, Spain, and with contributions from other institutions like the Salvador Dali Museum in St. Petersburg.5.How are the exhibits arranged at the World of Dali? ________A.By popularityB.By time and subject.C.By size and shapeD.By importance.阅读理解Ⅳ:篇章结构题(测)答案1~5 ABBAB阅读理解Ⅳ:篇章结构题(测)解析1.【文章大意】随着现代科技的发展,树荫下种植的咖啡产量越来越少,取而代之的是受到阳光暴晒的考费。

全国2018届高三英语二轮复习试题:专题四 七选五 练习 Word版含解析

全国2018届高三英语二轮复习试题:专题四 七选五 练习 Word版含解析

[全国卷3年考情分析][命题者说]阅读七选五不但要求学生扎实地掌握词汇和句子、语段和语篇等方面的知识,而且要求学生具备综合分析和辩证的逻辑思维能力,这是实现学生对阅读材料深层理解的基础性能力。

这种题型的语篇主线通常都很清晰,通常都是具有明确的逻辑关系的议论文或说明文。

该题型中设有五个空,而对应的选项有七个,其中有两个选项为干扰性错误选项。

这七个选项通常包括主旨句、过渡性句子、细节注释性句子三类。

主旨句主要以标题类和主题句为主,过渡性句子通常涉及文章结构,细节注释性句子主要涉及上下文逻辑意义。

因此学生需要根据文章结构、内容选出正确的选项填入相应的空白处。

新课程标准中“提高学生用英语获取信息、处理信息、分析问题和解决问题的能力”的阅读学习的教学理念在本题型中得以充分体现,学生对文章的整体内容和结构以及上下文逻辑关系的理解和掌握也得到了考查。

综合上表可知,段首题和段中题是考查重点,而段中题又以并列或递进关系和转折或让步关系居多,这就要求考生必须联系上下文去做题,仔细揣摩上下句之间的逻辑关系。

因此,在做阅读七选五时,考生可以从“位置”和“逻辑”两个角度来把握该题型的解题技巧。

下面我们就从这两个角度分两个方面来突破这一题型!掌握通性通法,内化快捷解题路径一、段首题1.空格为主旨句在某段第一句设空的内容通常是该段落主旨句。

学生需要通过认真研读该段的内容,然后从选项中查找下文的同义词或其他相关词或句,从而确定答案:有时则需反复读设空处后面一两句或更多内容,确定关键信息词,然后在各个选项中查找关联词和信息句。

一般正确答案选项与所设空后的第一句在意义上是紧密衔接的,因此正确选项和原文的内容是连贯且符合逻辑的。

[示例] (2017·全国卷Ⅲ)·__17__In order to make a change, you need to decide why it’s important. Do you want to get up in time to have breakfast with your family, get in some exercise,or just be better prepared for your day?Once you are clear about your reasons, tell your family or roommates about the change you want to make.B.Find the right motivation.[解析] 本题空格在段首,需要填一个主旨句或一个承上启下句。

高考英语二轮复习专题0阅读理解Ⅳ:篇章结构题含解析

高考英语二轮复习专题0阅读理解Ⅳ:篇章结构题含解析

专题7 阅读理解Ⅳ:篇章结构题【构建知识体系】篇章结构题考点段落层次、写作方法和行文走势2014-2016年全国高考本专题考查分布明细统计年份篇章结构篇目题号主题体裁2016 02015 02014 02013 02012 1 全国卷Ⅰ,D 过度学习议论文【考纲解读】考试大纲要求考纲解读要求考生阅读4篇短文,从每题所给的4个选项中选出最佳选项。

题材广泛,包括科普、社会、文化、政治、经济等多方面内容。

体裁多样,以记叙文、议论文、说明文为主。

考查主旨大意、细节理解、推理判断、词义猜测、篇章结构等题型。

篇章结构题的考查对象是整个篇章或其中的某个段落。

考查同学们在理解全文的基础上对文章所描述事件的发展顺序、所说明事物的结构层次或在论述观点过程中使用的方法进行推测、归纳和总结的能力。

【剖析全国高考真题】——预测高考命题方向[2012·全国卷Ⅰ,D]Grown-ups are often surprised by how well they remember something they learned as childrenbut hav e never practiced ever since. A man who has not had a chance to go swimming for years can still swim as well as ever when he gets back in the water. He can get on a bicycle after many years and sti ll ride away. He can play catch and hit a ball as well as his son. A mother who has not thought about the words for years can teach her daughter the poem that begins "Twinkle, twinkle, little star" or remember the story of Cinderella or Goldilocks and the Three Bears.One explanation is the law of overlearning, which can be stated as follows: Once we have learned something, additional learning trials(尝试) increase the length of time we w ill remember it.In childhood we usually continue to practice such skills as swimming, bicycle riding, and playing baseball long after we have learned them. We continue to listen to and remind ourselves of words such as "Twinkle, twinkle, little star" and childhood tales such as Cinderella and Goldilocks. We not only learn but overlearn.The multiplication tables(乘法口诀表) are an exception to the general rule th at we forget rather quickly the things that we learn in school, because they are another of the things we overlearn in childhood.The law of overlearning explains why cramming(突击学习)for an examination, though it may result in a passing grade, is not a satisfactory way to learn a college course. By cramming, a student may learn the subject well enough to get by on the examination, but he is likely soon t o forget almost everything he learned. A little overlearning, on the other hand, is really necessary for one's future development.68.The author explains the law of over learning by_________.A. presenting research findingsB. setting down general rulesC. making a comparisonD. using examples【答案】68. D【解析】【高考预测】纵观近几年全国高考试题,很少出现此类题型,但这一题型在地方高考和模拟试题中时有出现,因此不排除2017年全国高考试题可能会①设置1道篇章结构题,考查考生对整个篇章或其中的某个段落结构和脉络的把握。

2018高考英语二轮复习知识技巧梳理专题7阅读理解(含解析)

2018高考英语二轮复习知识技巧梳理专题7阅读理解(含解析)

阅读理解预测一高考阅读理解所选材料通常都是国外网站上的地道的英语文章,然后经过命题专家整合、改编而成。

文章主要介绍国内外的文化风俗、历史名胜、人文地理、著名人物等。

预测二文章的篇幅较短,词数多为280~330,兼顾多种体裁,通常有记叙文、说明文、议论文、应用文等,要求考生充分利用所给信息,回答文章提出的问题。

通常文章难度不大,关键是考查考生高效处理信息的能力,还要求考生对文章有更深层次的理解。

但是题目并不容易,很容易出错。

全国卷的命题逐渐向地方自主命题卷,尤其是新课标地区的试卷看齐,不断增加词汇量和文章长度,向新课标过渡。

预测三题目设置灵活多样,通常以细节理解题为主,推理判断题为辅,兼顾猜测词义、句意题及目的意图题和主旨大意题。

这种命题特点要求考生更好地了解文章中的有用信息,提高阅读速度。

高中英语教学大纲明确规定“侧重提高阅读能力”,这为我们的备考指明了方向。

阅读理解能力属于语言的领会技能,它不仅考查对语篇的整体把握能力,而且考查快速捕捉信息、准确理解特定细节以及复杂句子的能力。

不仅要准确理解文章表层的意思,还要通过表层去推理、判断。

除此之外,还涉及非语言因素,如:对所学语言国家的社会和文化背景知识的掌握、生活常识、逻辑知识和语言修养等。

考点1 主旨大意题1.主旨大意题常分为两类:(1)选出文章最佳标题;(2)概括文章或段落大意。

2.主旨大意题主要考查对文章进行概括或总结的能力,它要求在阅读短文时,能够提炼文章的中心思想,体会作者的写作意图,充分运用逻辑概括能力,透过字里行间获取文章最具代表性的观点、论点及作者的情感倾向。

研读近几年高考阅读理解,可以发现对主旨大意类的考查占有相当重要的地位。

【答题技巧】主旨大意题的三种思路:①寻找主题句,确定文章大意。

在许多情况下,尤其是在阅读说明文和议论文时,根据其篇章特点我们可以通过寻找短文的主题句来归纳出文章的主题。

主题句在文章中的位置通常有三种情况:开头、中间、结尾(或在开头结尾同时出现首尾呼应的主题句),因此,仔细阅读这类文章或段落的首尾句是关键。

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专题7 阅读理解Ⅳ:篇章结构题班级姓名学号分数(测试时间:45分钟)1. 【黑龙江省佳木斯市第一中学2018届高三上学期第五次调研】CThe Indian government may use 3D paintings as virtual speed-breakers on major highways arid roads, in an attempt to check speeding and careless driving, and eventually make its deadly roads a little safer. “We are trying out 3D paintings used as virtual speed breakers to avoid unnecessary requirements of speed breakers,” India's transport minister Nitin Gadkari tweeted.The visual illusions (幻象)are supposed to encourage drivers to slow down automatically. Earlier this month, India had ordered the removal of all speed breakers from highways, which are considered to be a danger to safety for high-speed vehicles.India has the highest number of road accident deaths in the world. According to the World Health Organisation, over 200,00 people are killed by road accidents due to poor application of road safety laws. This is considerably higher than its official figures of 141,526 for 2014.The use of visual illusions as speed breakers was first pioneered in the American city of Philadelphia in 2008, as part of a campaign against speeding motorists. The technique has also been tried out in China to create floating 3D crossings.In India, cities such as Ahmedabad and Chennai have already experimented with 3D zebra crossings in the last one year. In Ahmedabad for instance, two artists, mother and daughter have painted 3D crosswalks in the first few months of this year. The artists say th eir motto is “to increase the attention of drivers”, and that the concept has been successfully tested in zones where accidents easily occur on a highway.”However, critics argue that once drivers know that these speed breakers arc visual illusions, they may ignore them. Others also point out that India's decision does not consider the safety of a large number of walkers. In the end, the new policy may be just one step towards improving road safety.10. The author explains the experiment of 3D zebra crossings in India by .A. giving examples.B. analysing causes.C. providing figures.D. making comparisons.【答案】10. D2. 【河南省豫北豫南名校2018届高三上学期第二次联考】BI once knew a high school teacher who made, in my mind, a curious comment. Referring to a naught y student, he remarked, with a tone of gloomy resignation, “People don’t change.” I knew the kid well. He was what one would call a “juvenile delinquent(不良少年)”. But if schooling held no promise of making positive changes in kids, what was the point teaching?My own son, Alyosha, growing up, was athletic, energetic, and occasionally hard to handle. But he never showed the least interest in tools, or working with his hands in any way. The result was that he couldn’t tell a screwdriver from a paintbrush. I rec all one day, as I fussed under the car, calling out to him to bring me an adjustable wrench(知动扳手). He fetched a pair of pliers(钳子). “No,” I pleaded while trying to hold an oily car part in place. “Pliers.” He went back into the garage and returned with a b ar. “No, no,” I corrected him. “The adjustable wrench! For loosening a nut.” To which, in his own defennce, he exclaimed, “Well, I don’t know!”Years passed. And then, one day, well into his 20s, he told me he had decided on a technical school: machinery technology. I nodded approvingly, but already knew that it was a challenging field, full of moving parts, tools, and dreaded math.During his period in Coast Guard technical school I thought about him daily, wondering what the outcome would be. I had prepared myself for the phone call telling me that it was just too much and he was being sent to sea as a deckhand.It didn’t happen. The phone did ring, but it was Alyosha asking me to fly to Virginia to attend his graduation and pin his new rank on his collar. Prouder I couldn’t have been.As I stood before my son, Alyosha, standing at attention and staring dead ahead, glanced at me. “You want me to help you, Dad?” he said. “Always,” I answered, “but not this time.”Yeah, people do chance. And, in my experience, it’s usually something to see.5. The examples in Paragraph 3 are used to show Alyosha___________.A. lacked team spiritB. knew nothing about mechanicsC. had a bad relationship with his dadD. was unwilling to learn any handwork【答案】5. D3. 【山东省曲阜市2018届高三上学期期中】DIt’s true that quite a few most respected scientific authorities have confirmed that the world is becoming hotter and hotter. There’s also strong evidence that humans are contributing to the warming. Countless recent reports have proved the same thing. For instance, a 2010 summary about the climate science by the Royal Society noted that: The global warming over the last half - century has been caused mainly by human activity.”You may not believe that humans could change the plan et’s climate, but the basic science is well understood. Each year, billions of tons of greenhouse gases are released into the atmosphere because of human activity. As has been known for years, these gases hold heat that would otherwise escape to space, wrapping the planet in an invisible blanket.Of course, the earth’s climate has always been changing due to “natural” factors such as volcanic eruption or changes in solar, or cycles concerning the Earth’s going around the sun. According to the scientific research, however, the warming observed by now matches the pattern of warming we would expect from a build - up of greenhouse gas in the atmosphere - not the warming we would expect from other possible causes.Even if scientists did discover another reasonable explanation for the warming recorded so far, that would give birth to a difficult question. As Robert Henson puts it: “If some newly discovered factor is to blame for the climate change, then why aren’t carbon dioxide and the other greenhouse gases produ cing the warming that basic physics tells us they should be?”The only way to prove with 100% certainty that humans are responsible for global warming would be to run an experiment with two identical Earths-one with human influence and one without. Thatob viously isn’t possible, and so most scientists are careful not to state human influence as an absolute certainty.12. The text is developed by ________.A. giving typical examplesB. following the order of spaceC. comparing and finding differencesD. analyzing a theory and arguing it【答案】12. D4.The production of coffee beans is a huge,profitable business,but,unfortunately,full­sun production is taking over the industry and bringing about a lot of damage.The change in how coffee is grown from shade­grown production to full­sun production endangers the very existence of,certain animals and birds,and even disturbs the world's ecological balance.On a local level,the damage of the forest required by full­sun fields affects the area's birds and animals.The shade of the forest trees provides a home for birds and other species(物种) that depend on the trees' flowers and fruits.Full­sun coffee growers destroy this forest home. As a result,many species are quickly dying out.On a more global level,the destruction of the rainforest for full­sun coffee fields also threatens(威胁)human life.Medical research often makes use of the forests' plant and animal life,and the destruction of such species could prevent researchers from finding cures for certain diseases.In addition,new coffee­growing techniques are poisoning the water locally, and eventually the world's groundwater.Both locally and globally, the continued spread of full­sun coffee plantations(种植园) could mean the destruction of the rainforest ecology.The loss of shade trees is already causing a slight change in the world's climate,and studies show that the loss of oxygen­giving trees also leads to air pollution and global warming.Moreover,the new growing techniques are contributing to acidic(酸性的) soil conditions.It is obvious that the way much coffee is grown affects many aspects of life,from the local environment to the global ecology.But consumers do have a choice.They can purchase shade­grown coffee whenever possible,although at a higher cost.The future health of the planet and mankind is surely worth more than an inexpensive cup of coffee.Which of the following shows the structure of the whole text?【答案定位】本文的第一段提出观点,其后的第二、三、四段分别从不同角度进行具体论证,最后一段是总结段。

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