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  3. There are always good reasons for people to care about the welfare of animals. Ever since the Enlightenment, their treatment has

There are always good reasons for people to care about the welfare of animals. Ever since the Enlightenment, their treatment has

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问题     There are always good reasons for people to care about the welfare of animals. Ever since the Enlightenment, their treatment has been seen as a measure of mankind’s humanity. It is no coincidence that William Wilberforce and Sir Thomas Foxwell Buxton, two leaders of the movement to abolish the slave trade, helped found the Royal Society for the Prevention of Cruelty to Animals in the 1820s. An increasing number of people go further: mankind has a duty not to cause pain to animals that have the capacity to suffer. Both views have led people gradually to extend treatment once reserved for mankind to other species.
    But when everyday lives are measured against such principles, they are fraught with contradictions. Those who would never dream of caging their cats and dogs guzzle bacon and eggs from ghastly factory farms. The abattoir and the cattle truck are secret places safely hidden from the meat-eater’s gaze and the child’s story book. Plenty of people who denounce the fur-trade (much of which is from farmed animals) quite happily wear leather (also from farmed animals).
    Perhaps the inconsistency is understandable. After hundreds of years of thinking about it, people cannot agree on a system of rights for each other, so the ground is bound to get shakier still when animals are included. The trouble is that confusion and contradiction open the way to the extremist. And because scientific research is remote from most people’s lives, it is particularly vulnerable to their campaigns.
    In fact, science should be the last target, wherever you draw the boundaries of animal welfare. For one thing, there is rarely an alternative to using animals in research. If there were, scientists would grasp it, because animal research is expensive and encircled by regulations. Animal research is also for a higher purpose than a full belly or an elegant outfit. The world needs new medicines and surgical procedures just as it needs the unknowable fruits of pure research.
    And science is, by and large, kind to its animals. The couple of million (mainly rats and mice) that die in Britain’s laboratories are much better looked-after and far more humanely killed than the billion or so (mainly chickens) on Britain’s farms. In fact, if Darley Oaks makes up its loss of guinea pigs with turkeys or dairy cows, you can be quite sure animal welfare in Britain has just taken a step backwards.
In the text, a comparison is made so as to
选项 A、abolish the animals’ trade.
B、elaborate a higher purpose of animal research.
C、warn that human beings have a duty not to cause pain to animals.
D、assert that science is, by and large, kind to its animals.
答案B
解析 本题是一道细节题，考查考生识别理解原文中常见语言基本结构的能力。本题的答案信息来源在第四段的尾句，该句中的“just as”(正如……一样)所表达的恰恰是一种“比较”(comparison)。第四段尾句的作用是对第四段倒数第二句进行进一步的具体解释和说明。因此，第四段尾句中含有的比较结构是来具体说明解释“动物研究的目的是一个更高的目的”。故本题的正确选项是B。
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