Not long ago , Richard Denniston found himlf suffering the same pain that mill

更新时间:2023-02-05 06:06:31 阅读: 评论:0

题文

Not long ago , Richard Denniston found himlf suffering the same pain that millions of other pet owners have faced . His little Scottish dog had a brain tumor(肿块)and would soon die. Like others who faced the problem before him , Denniston just wanted to end his pet’s suffering . However , he took one step further.Deniston , an expert who studies animals , collected a tiny skin sample from the dog and took it to his laboratory at Louisiana State University. There he  cultivated  it and froze it in liquid nitrogen.From that idea , Denniston started a new technology .Denniston’s company will save pet’s DNA $500,plus a monthly storage fee of Us $10, until cloning becomes a reality .Thanks mostly to the contribution of a California multimillionaire , that day may not be so far off.“It could happen extremely soon if everything went on well.”says Mark Westhusin , a professor leading a dog cloning team . Most experts put successful dog cloning a year to five years down the road . The cost is bound to be expensive at first , but it would eventually drop to a few thousand dollars.Since Dolly , the sheep which was first cloned in 1997 ,cattle ,goats ,mice and monkeys have been cloned in labs . Pets are likely to be next.“I really believe that the technology is going to become available for many species in the near future ,”Denniston says .1. After his pet died ,Richard Denniston_______.A. did something more than the ordinary pet ownersB. did as other pet ownersC. did nothing but feel very sadD.could not help feeling lonely without his dear pet2. Richard Denniston_________in liquid nitrogen for an experiment. A. was a doctor who put his dogB. was an animal expert who put a piece of his dog’s skinC.was an expert at collecting skin samples who then put themD.took great interest in freezing things3. The underlined word “cultivated ”in Para . 2 probably means_________.A. bought B.discovered    C.caught D.trained4. Cloning will cost people_______.A. a lot of money in five years .B. much in the beginning and then be reduced to a thousand dollars.C. much and then will surely be reduced to thousands of dollars.D.much at first and then might be reduced to a few thousand dollars. 题型:未知难度:其他题型

答案

小题1:A小题2:B小题3:D小题4:D

解析

考点

据考高分专家说,试题“Not long ago , Richa.....”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。

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