雅思寫(xiě)作高分范文環(huán)境話題之動(dòng)物實(shí)驗(yàn)

　　雅思大作文題目：

　　Somepeople think that using animals for experimentation purpose is cruel, but otherpeople think that it is necessary for the development of science. Discuss bothviews and give your opinion.

　　雅思大作文解題思路：

　　應(yīng)該做實(shí)驗(yàn)：

　　1. 動(dòng)物是唯一的可選實(shí)驗(yàn)體，太多的醫(yī)學(xué)進(jìn)步得益于動(dòng)物實(shí)驗(yàn)。

　　2. 人類(lèi)為了自身生存而利用動(dòng)物是可以理解的，這只不過(guò)是自然選擇的結(jié)果。

　　3. 這是一個(gè)機(jī)會(huì)成本的計(jì)算，如果僅僅是幾只兔子的代價(jià)就能帶來(lái)數(shù)百萬(wàn)人的健康和存活，這個(gè)無(wú)疑是劃算的。

　　不應(yīng)該：

　　1. 這是一種漠視生命的表現(xiàn)，不利于動(dòng)物保護(hù)。

　　2. 有效性存疑，畢竟動(dòng)物的體征和人類(lèi)的有較大不同。

　　雅思大作文高分范文：

　　Animaltesting has been applied as a normal procedure of scientific research foryears. There are emerging criticisms arguing that the sufferings inflicted onlaboratory animals are brutal. However， the progress of sciences would be seriously hampered if heavyregulations are imposed on animal research.

　　Manymedications and procedures currently in use would not exist if animal testingwas banned. Animal testing has assisted mankind in successfully developingvaccines and antibiotics. Life-saving techniques such as organ transplant alsoown thanks to animal research. Such development in science has cured peoplearound the globe， saving millions of lives. However， whatcould we use to achieve comparable results without animal research? Our scienceis not so advanced that we could test a new drug on a flower or tomato beforeits clinical application. Of course， mankind could notsacrifice human lives for the purpose of research.

　　Incomparison to the costs in terms of the sufferings on animals， the advantages thatanimal testing has brought to humans are much greater. Human society isrequired to generate valuable consequences， even at thecost of inflicting pain to some animals whose lives may be worthy. Nevertheless， the value of their lives does not count as much as the value ofhuman life because human beings have much higher capability and sensibilitythan animals.

　　However， it is also true thatpain killers are not administered to animals in many cases of animal testing.Animals even as a lower form of life deserve to be treated with due humanity.So mankind has a moral obligation to decrease the sufferings of animals withintheir power.

　　Inconclusion， animal testing is crucial as a procedure of science. Itselimination would severely hamper development of sciences. However, mankindshould also do their best to decrease the sufferings of laboratory animals.(310 words)