雅思写作素材Animal
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雅思写作素材 Animal
Animal 类
范文
Some people think animal experimentation should be
stopped because it is cruel. Others think it is
necessary for the development of science. Discuss
both view and give your own opinion.
Animals were friend of foes of humanity at dierent
times of the human history. In modern times,
experiments upon animals have long been a breeding
ground for spirited debate. Some animal right
activists argue that we should ban animal
experiments altogether because putting animals
through experimentation is unjusti"able on moral
grounds. Yet some other people contend that the
advancement of science necessitates animal testing.
Personally, I believe both their views have merit and
demerit.
Granted, empirical evidence suggests that many
animal experiments are performed callously without
any attention to the discomfort or pain that
laboratory mammals endure. First and foremost,
improper con"nement of test animals such as locking
them up in
cramped cages is inhumane. It can gravely disrupt
natural biological functions of the test animal.
Further, the eects of vaccination and vivisection
conducted on live mammals can be chilling. They
may, in some case, even constitute sheer torture of
live animals.
However, from a more pragmatic perspective,
evidence bounds that animal subjects are still an
indispensable part at this point. In the "rst place, it is
manifest that drug experimentation on live mammals
is far more eective than experimentation on bacteria
or on other lower species in testing drug safety. Drugs
that have severe potential side eects on Homo
sapiens must be tested by pharmaceutical companies
on live mammals "rst to ascertain their toxicity. In the
second place, in space research, live animals are still
the only practical alternative to humans in testing
living creature reaction to outer-space experience on
a *ight not considered to be su+ciently safe for
human astronauts. Lastly, lab research about the
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雅思写作素材AnimalAnimal类范文Somepeoplethinkanimalexperimentationshouldbestoppedbecauseitiscruel.Othersthinkitisnecessaryforthedevelopmentofscience.Discussbothviewandgiveyourownopinion.Animalswerefriendoffoesofhumanityatdifferenttimesofthehumanhistory.Inmoderntimes,experimentsuponanimalshavelongbeenabreedin...
