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Every year, millions of animals undergo painful suffering or death as a result of scientific research into the effects of drugs, food additives, cosmetics and other chemical products. While most people think animal testing is necessary, others are upset by what they see as needless suffering. This essay looks at some of the positive and negative aspects of animal testing.
Many medical treatments and procedures have been developed from experiments on animals. Since animals share many features with humans, scientists use animals to test the safety and effectiveness of newly developed drugs before pilot testing on small groups of patients. Medical teams practice new operating techniques such as transplants on animals. Without animal testing, many procedures or new drugs would be extremely unsafe.
However, many people are concerned that animals are suffering unnecessarily and cruelly. They do not believe that every new drug needs to be tested on animals, especially with the huge database of knowledge and modern computer models. They also are worried that many animal tests are ineffective, pointing out that any drugs have had to be withdrawn from the market despite extensive testing. They particularly feel that animal testing should not be used for non-essential products such as cosmetics, shampoos, soaps, and cleaning products. Furthermore, some campaigners would like to see certain tests replaced and more humane methods used.
We need to make sure that the millions of animals who are used for testing new products are treated with the minimum of suffering. Although some animal testing may be unavoidable at present, treating our fellow creatures as mercifully as possible will demonstrate our humanity.
大学生提高听力的水平应注意的几个问题
四级听力考试技巧:四级听力小对话九种题型必胜的技巧
短文听力理解解题的技巧
CET听力:听力对话九种题型的简介
听力对话神蒙的原则
大学大学英语四、六级填空式听写的技巧
24日大学英语四级考试听力的附试题和答案
应对大学英语四级考试的听力题量变化的对策
1998年1月大学英语四级考试听力的附试题和答案
听力试题的命题规律和解题的技巧
大学英语考试四级听力考前的辅导(1)
听音良习助过关哦
四级听力的考前一月突破
地点与方向的类型
地点、职业、人物的关系类
大学英语考试四级听力考前的辅导(3)
四级考试的“复合式听写”
英语四级的听力考前一月巧“突破”
四级考试:听力提问方式及答题的策略
漫谈大学英语四级听力的考试
大学英语四、六级考试听力部分题型的简述
四六级考试听力考场的要诀
大学英语考试四级听力考前的辅导(4)
共同的解题的技巧
英语四级考试听力的附试题和答案
大学英语四六级的听力应对三大要点
英语四级的听力中常考的同音词与近音词
英语的听力:课下重积累考试巧应对
听力训练的一些方法
大学英语四级听写部分的应试的技巧
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