阅读理解. Widespread evidence links global warming to a ries of environm

题文

阅读理解. Widespread evidence links global warming to a ries of environmental effects. Starving polar bears are eating one another in the Arctic. Flowers are blooming (盛开) too soon and die. The ice caps are melting so fast that rising water levels will threaten coastal towns along Florida within veral decades. The are just a few examples of the terrible conquences of climate change discovered by a new rearch in Nature that paints a dark portrait of what a warming world will look like in the years to come. The rearchers analyzed 829 abnormal phenomena-including melting glaciers (冰川)-along with nearly 30, 000 changes in plants and animals.and found that about 90% of them are in sync(同步) with scientists' predictions about how global warming will change the planet. "In the past three decades, average global temperatures have rin about 0. 60C and are projected to jump by about l.7℃ by the end of the century," says Cynthia Ronzweig, who leads the Climate Impacts Group at NASA's Goddard Institute for Space Studies at Columbia University in New York. " We've already en that a relatively low amount of warming, "she says , " can result in a broad range of changes. " The unnatural warming caud by man-made greenhou gas , especially carbon dioxide produced by cars and coal-powered plants, brings trouble for entire ecosystems. In North America alone, scientists have identified 89species of plants . such as the American holly , which have flowered earlier in the spring. In Spain , apple trees bloom 35 days ahead of schedule. in respon to the higher temperatures. Other wildlife , liketheincts that u certain plants for food and the birds that feed on the incts, must then move forward their asonal stirrings and mating patterns to survive. To try to follow this time shift.some birds such as robins.the classic symbol of winter'sthaw , are returning toColorado fromtheir migrations some two weeks earlier than in years past. All the changes can throw a food chain in disorder, some bird species that arrive before the incts reappear may starve to death. "Around the world, plants and animals 'are waking up to an earlier alarm clock than they ud to, "says 'rerry Root, a biologist from Stanford University.1. The author describes some unnatural phenomena in Paragraph 2to_____.A. show a picture of the prent worldB. prent the results of a recent rearchC. indicate the earth is now in great dangerD. call readers' attention to the new rearch2. The analysis of abnormal phenomena on earth shows that _______ .A. most changes agree with scientists' previous predictionsB. global warming has changed all the plants and animalsC. melting glaciers have caud the worst side effectsD. scientists made wrong predictions about the future of earth3. Why must some birds move about earlier than usual?______A. Becau the warm weather wakes them up earlier.B. Becau certain trees bloom a month ahead of time.C. Becau they need to follow some incts for food.D. Becau the plants they u to hunt food bloom late.4. What do we know about robins?______A. Farmers depend on them to tell the time.B. They ud to come back when spring came.C. They ud to predict the change of weather.D. They usually migrate when asons change.5. Which of the following would be the best title for the text?______A. Man Is to Blame for Global WarmingB. Humans Are Causing the World to Heat UpC. The Terrible Conquences of Climate ChangeD. Global Warming Is Changing Nature's Clock 题型：未知难度：其他题型

答案

1-5DACBD

解析

该题暂无解析

考点

据考高分专家说，试题“阅读理解. Wide.....”主要考查你对 [健康环保类阅读 ]考点的理解。 健康环保类阅读

健康环保累阅读概念：

健康环保类文章常是介绍科学知识、生活常识和环境保护方面的短文。体裁有记叙文、 说明文、议论文和各种应用文。

健康环保类文章阅读技巧：

   健康环保类文章常是介绍科学知识、生活常识和环境保护方面的短文。阅读此类短文要以现象或事物为中心进行思考，理解现象产生的原因、条件和客观规律等。同时要抓住事物的特征、用途和相互关系等。科普环保类文章一般为说明文，从结构上看大致可分为三个部分：   第一部分一般是文章的首段，主要用来提出文章的主题，即文章想要阐述、说明的主要内容；   第二部分是文章的主体，可由若干个段落组成，对文章的主题进行展开说明；   第三部分是结尾段，对文章的主题进行归纳总结。这类文章多用一般现在时，而且一般多使用客观性词语表述。有时为了强调客观性，也常使用被动语态。   从近几年的考试题来看，科普环保类的文章越来越与人们的实际生活相接近。由于此类文章缺乏故事情节，很多同学对此类文章感到费解。但一般的科普类文章都是就事论事，需要逻辑推理和想象的时候较少，因此此类阅读题也没有同学们想象中的那么难，只要多加训练，就能较好地答题。【阅读策略】 1、概要(Summarizing)：  阅完材料后，将所阅材料浓缩，摘要，做出所阅材料的书面或口头梗概。 2、组织(Organization)：  阅读后根据阅读内容，识别观点、人物、事件之间的关系以及文章的结构关系。如：时间关系、比较或对比关系、相关关系及因果关系等。