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Under pressure from animal welfare groups, two national science teachers’ associations have adopted guidelines that ban classroo

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问题      Under pressure from animal welfare groups, two national science teachers’ associations have adopted guidelines that ban classroom experiments harming animals. The National Association of Biology Teachers and the National Science Teachers’ Association hope to end animal abuse in elementary and secondary schools and, in turn, discourage students from mishandling animals in home experiments and science fair projects.
     Animal welfare groups are apparently most concerned with high school students experimenting with animals in extracurricular projects. Barbara Orlans, President of the Scientists’ Center for Animal Welfare, said that students have been performing surgery at random, testing known poisonous substances, and running other pathology (病理学) experiments on animals without even knowing normal physiology (生理学).
     At one science fair, a student cut off the leg and tail of a lizard (蜥蜴) to demonstrate that only the tail can regenerate, she said. In another case, a student bound sparrows, starved them and observed their behavior.
     "The amount of abuse had been quite horrifying," Orlans said.
     Administrators of major science fairs are short-tempered over the teachers’ policy change and the impression it has created. "The teachers were sold a bill of goods by Barbara Orlans," said Thurman Grafton, who heads the rules committee for the International Science and Engineering Fair. "Backyard tabletop surgery is just nonsense. The new policies throw cold water on students inquisitiveness," he said. Grafton said he wouldn’t deny that there hasn’t been animal abuse among projects at the international fair, but he added that judges reject contestants who have unnecessarily injured animals. The judges have a hard time monitoring local and regional fairs that may or may not choose to comply with the international fair’s rules that stress proper care of animals, Grafton said.
     He said that several years ago, the Westinghouse Science Talent Search banned harmful experiments to animals when sponsors threatened to cancel their support after animal welfare groups lobbied for change.
     The teachers adopted the new policies also to fend off proposed legislation — in states including Missouri and New York — that would restrict or prohibit experiments on animals.
     Officials of the two teachers’ organizations say that they don’t know how many animals have been abused in the classroom. On the one hand, many biology teachers are not trained in the proper care of animals, said Wayne Moyer, executive director of the biology teachers’ association. On the other hand, the use of animals in experiments has dropped in recent years because of school budget cuts. The association may set up seminars to teach better animal care to its members.  
According to the text, animal welfare groups have succeeded in ______ .
选项 A、stopping all animal abuse in schools
B、establishing guidelines that ban classroom experiments harming animals
C、protecting animals from being experimented with in extracurricular projects
D、persuading two national science teachers’ associations to adopt an animal protection policy
答案D
解析 首段提到迫于动物保护组织的压力，两个国家科学教师协会(国家生物教师协会和国家科学教师协会)已经放弃在课堂或家里做解剖动物实验，D项是原文的同义转述。A项表述过于绝对；B项属于过度推理，文章首句并未指出是谁establish guidelines, 只提到了两个协会；C项是animal welfare groups最关心的问题，而并不是已经取得的成就。
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