关于动物试验的雅思作文范文

　　Some people think it is necessary, to use animals for testing medicines intended for human use.Others, however, think it is cruel to do that. Discuss both of these views and give your own opinion.（考题重现：2010.09.11）。

　　核心词汇：animals,testing medicines。

　　文章结构：辩论型对称式话题。

　　Animals have been friends or foes of human beings at different stages in human history In modern times, experiments upon animals have been a breeding ground for heated debate.Some animal right activists argue that animal experiments should be banned because subjecting animals to experimentation is unwarranted on moral grounds, whereas some others contend that the advancement of science necessitates animal testing. Personally, both sides of the view should be taken into consideration.

　　Granted, mounting empirical evidence suggests that many animal experiments are performed callously without any heed to the discomfort or pain that laboratory mammals endure. For one thing,improper confinement of the test animals such as locking them up in cramped cages is inhumane; and this, in turn, can severely disrupt the natural biological functions of the test animals. For another, the effects of vaccination or vivisection conducted on live mammals can be chilling. In extreme cases, they constitute sheer torture of animals.

　　Nevertheless, from a more utilitarian standpoint, evidence abounds that animal subjects are still an indispensable part of scientific research at this phase of human development. In the first place, drug experimentation on live mammals is, indisputably, far more effectual thanexperimentation on bacteria or on other lower species in determining drug safety. In the second place, in the realm of space research, live animals are still practical alternatives on a flight not considered to be sufficiently safe for human astronauts. Lastly, lab research about the behavioral tendencies of chimpanzees, gorillas or other members of the primate group is also a worthy
endeavor, in light of the fact that it can consistently advance anthropological and genetic sciences.

　　To conclude, I recognize that experiments upon animals may induce suffering to the test animals.However, there are no practical alternatives to this method at the current stage of scientificdevelopment.

　　在不同历史时期，动物和人即是敌也是友。近来，拿动物做实验引发了激烈争论。有些动物权利主义者认为动物实验应该被禁止，因为在道德层面上，强迫用动物做实验是没有任何依据的。然而，另一些则认为科学的进步离不开动物实验。个人认为，问题的双方都应被考虑。

　　诚然，越来越多的实验证据表明很多动物实验非常冷酷无情，实验室里的哺乳动物所承受的不适和痛楚是不被关注的。一方面，将实验动物用不合适的方式囚禁，比如困在一个狭小的笼子里是不人道的。同时这也对实验动物的自然生理功能带来了严重干扰。另一方面，对活体哺乳动物进行疫苗接种和活体解剖导致的后果是恐怖的。在极端情况下，它们完全是对动物的折磨。

　　然而，从更为实用的观点来看，大量证据表明动物实验仍是在现有人类发展水平下，科学研究不可或缺的部分。首先，在活体哺乳动物身上进行药物实验，毫无争议要比在细菌或者其他低等生物身上作药物实验更能够测试药品安全性。其次，在太空研究领域，在那些对于人类宇航员而言不够安全的飞行中，活体动物仍是实际的替代物。后，基于它能使人类学和基因科学持续进步的事实，实验室关于黑猩猩、大猩猩和其他类人猿的行为倾向研究也是一件值得做的事。

　　总之，我承认动物实验会对被实验的动物造成折磨。然而，在现有科学发展阶段，还没有现实的方法能替代它。