【单选题】{{B}}第二篇{{/B}}
Most people regard snake bites as a fatal misfortune, but not all bites are serious, and very few are fatal: Sometimes attempts at emergency treatment turn out to be more dangerous than the bite itself, with amateurs heroically, but mistakenly, trying do-it-yourself surgery and other unnecessary measures.
All snakes have small teeth, so it follows that all snakes can bite, but only the bite of the adder presents any danger.British snakes are shy animals and are far more frightened of you than you could possibly be of them. The adder will attack only if it feels threatened, as can happen if you take it by surprise and step on it accidentally, or if you try to catch it or pick it up, which it dislike intensely. If it hears you coming, it will normally get out of the way as quickly as it can, but adders cannot move very rapidly and may attack before moving if you are very close.
The effect of a bite varies considerably. It depends upon several things, one of which is the body-weight of the person bitten. The bigger the person, the less harmful the bite is likely to be, which is why children suffer far more seriously from snake bites than adults.A、healthy person will also have better resistance against the poison.
Very few people actually die from snake bites inBritain, and though these bites can make some people very ill, there are probably just as many cases of bites having little or no effect, as there are of serious illness.
B．unlikely to bite except in self-defence
C．aggressive towards anyone in their territory
D．not afraid of human beings
网考网参考答案：B
网考网解析：
根据第三段第三句“蝮蛇只有在它感到受到威胁时才攻击别人”可知B项“除了自卫外，不可能咬人”是正确的判断。C项“对任何处于他们领地的人都充满敌意”是错误的，因为它们只有在你试图抓住它们时或偶然踩住它们时才会攻击你；D项“它们不怕人类”是错误的，因为根据第三段第二句可知“蝮蛇是害羞的动物”，再根据最后一句可知，“如果它们听到你的到来，通常会尽快地退走”；A项不能从文章中推理出来。 document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>
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