18．Animal experimentation is the backbone（支柱，基础） of American research and treatment of disease．Each year，17million to 22million animals are sacrificed in the name of science．While 90percent of them are rats and mice，180，000dogs，50，000cats，61，000monkeys and 554，000rabbits are done away with in laboratories operated by industry and government．
But the public has raised an outcry（导致抗议） over these deaths．Spurred（驱策，刺激） vivid（生动的） reports of cruelty，the animal rights movement is made up of 7，000organizations with 10million members．They've documented cases in which monkeys were isolated（隔离） in steel tanks（箱、柜） for 45days and dogs were bombarded（轰击、辐射） with radiation or chemicals until they bled from the mouth．
Scientists say such incidents are rare．Laws have been passed to govern testing．Many research centers now have committees to review all proposed animal experiments，and computers can be used in place of animals in many experiments．But scientists say they can't do without animals to test new drugs and treatments on animals to make sure they're safe for humans．Animal experiments produced vaccines（疫苗） or treatments for diseases such as diabetes（糖尿病），and techniques used in open heart surgery．They're important to efforts to find a treatment for AIDS．
Animal rights activists have shown they will go to almost any length．One New York researcher received more than 10，000protest（抗议） letters following publicity of her experiments in which she gave drugs to monkeys．The researcher was studying drug addiction．A protester was arrested in Connecticut for placing a pipe bomb（铁管土炸药）outside a company that used animals in tests．After fires and break-ins，many labs have bought electronic locks and alarms for protection．Other targets of the animal rights movement are the fur industry，farms，and school biology classes in which children dissect（解剖） frogs．
The movement has scored some successes．A dozen states no longer allow pounds（兽栏）──places that accept dogs and cats that have no homes──to sell animals to scientists．Scientists claim the cost of their work will rise as a result．
The battle between scientists and activists raises a basic question：Can modern society be both humane（仁慈的） in its treatment of living things and advanced in its treatment of disease？It seems certain there will be new restrictions placed on the use of animals in scientific experiments．
58．The main idea of the article isA．
A．fewer animals should be taken to laboratories
B．Americans are questioning the use of animals in experiments
C．mice and rats make the best subjects for experiments
D．scientific experiments can be carried out without animals
59．Animal experiments will probably continue becauseC．
A．scientists insist they are harmless
B．the groups that oppose them aren't very big or powerful
C．they are critical for understanding and curing human disease
D．there are enough regulations to protect animals from abuse
60．Supporters of animal rights are most convincing when theyD．
A．explode bombs at laboratories that conduct scientific tests
B．point out the diseases that have been cured by scientists
C．threat their own pets kindly
D．give examples of animals that were mistreated in labs
61．Scientists will be satisfied only ifA．
A．they can continue using animals in their experiments
B．the animal rights movement comes to a stop．
C．they install locks and alarms on their labs
D．their supply of animals is increased significantly．
分析 本文是一篇科教类阅读，主要讲的是动物保护者认为应该少用动物做科学实验．
解答 58-61．ACDA
58题答案：A考查主旨大意，本文主要讲的是动物保护者认为应该少用动物做实验；故本题答案为A选项．
59题答案：C考查细节推理，根据文章第一段的Animal experimentation is the backbone（支柱，基础） of American research and treatment of disease动物实验是美国疾病研究与治疗的基础．故本题答案为C选项．
60题答案：D考查细节推理，根据文章第二段的They've documented cases in which monkeys were isolated（隔离） in steel tanks（箱、柜） for 45days and dogs were bombarded（轰击、辐射） with radiation or chemicals until they bled from the mouth．他们已经记录了猴子被隔离在箱子里长达45天之久、狗狗被辐射或者是化学物质轰击直到它们口吐鲜血．可知动物保护者记录的这些例子是最具有说服力的，因此本题答案为D选项．
61题答案：A考查细节推理，根据文章最后一段的The battle between scientists and activists raises a basic question：Can modern society be both humane（仁慈的） in its treatment of living things and advanced in its treatment of disease？科学家与活动家之间的战争提出了一个基本问题：现代社会能否既在对待生命体中仁慈又能在疾病治疗方面进步？可知科学家还是希望"动物能够被用于试验"，故本题答案为A选项．
点评 本文是一篇科教类阅读，题目涉及多道细节理解题，做题时结合原文和题目有针对 性找出相关语句进行仔细分析，结合选项选出正确答案．推理判断也是要在抓住关键句子的基础上合理的分析才能得出正确的答案．
