CThe Tasmanian devil is a rare marsupial(有袋动物)that lives only on the Australian

题文

CThe Tasmanian devil is a rare marsupial(有袋动物)that lives only on the Australian island state of Tasmania. The doglike animal is rapidly disappearing. The Tasmanian state government estimates that the number of devils has dropped from around 150,000 in the mid-1990s to between 20,000 and 50,000 at the end of 2007. The devil was declared an endangered species last week. It is being wiped out by a rare cancer called devil facial tumor(肿瘤)dia(DFTD). It spreads like a cold or flu from animal to animal. The dia is pasd when one devil bites another. When the marsupial is infected with DFTD, large tumors develop around its mouth and neck. The growths make it impossible for the devil to eat. Many finally die from starvation within six months of being infected. As the name implies, the dia occurs only in Tasmanian devils and cannot be pasd to humans. You’ve got to remember that devils are scavengers(清扫工). They arch through garbage for food. Throughout Tasmania people maintain outdoor dumps. If somebody threw out a carcass(兽类尸体), then the devils might actually consume quite large quantities of it. The dia has not yet appeared in the devil population that lives in the northwest region of Tasmania. Conrvationists have captured some of the healthy devils and nt them to a new home on the mainland of Australia. They hope the DFTD-free marsupials can be ud to start a captive-breeding population. once there are more dia-free devils, they can then repopulate the areas of Tasmania where the species are being wiped out. Tasmanian devils play an important role in keeping the state’s ecosystem in balance. They keep the population of other predators, such as foxes and wild cats, in check. Ray Nias, head of World Wildlife Federation—Australia’s conrvation program, says all Tasmanian wildlife will suffer if the devil becomes extinct. “If the devils go and the foxes and cats increa, it would be all over for a good dozen or more species of mammals, many of which are unique to Tasmania.”46. It can be inferred that the Tasmanian devil is __________. A. a hard-working street-cleaner    B. a grass-eating animal C. a meat-eating marsupial    D. A DFTD origin47. What’s the reason for making the Tasmanian devil endangered? A. A rare dia called DFTD occurs in Tasmanian devils. B. Dogs like to attack Tasmanian devils. C. Tasmanian people try to wipe out Tasmanian devils. D. The region of Tasmania is becoming hard for Tasmanian devils to breed.48. To which question does the last paragraph give the answer? A. How should people protect the devils? B. What do the Tasmanian people do with the devils? C. What happens if the devils disappear? D. Which animal is cloly related to the devils?49. What measures do Tasmanian people take to stop the devils from being wiped out? A. Trapping dia-free devils in a new place to breed more young devils. B. Searching the cau of the dia and finding an effective treatment. C. Developing new chemicals for the infected animals. D. Moving all the devils to a new home on the mainland of Australia.50. What’s true about DFTD? A. It’s a dia that can be spread to human beings. B. It’s a cold that occurs only in Tasmanian devils. C. It’s a flu that Tasmanian devils get from their companions. D. It’s a cancer that can be pasd from one Tasmanian devil to another. 题型：未知难度：其他题型

答案

46-50 CACAD

解析

略

考点

据考高分专家说，试题“CThe Tasmanian devil.....”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。