单选题
In the course of my reading I had come across a case where, many years ago, some hunters on our Great Plains organized a buffalo hunt for the entertainment of an English earl and to provide some fresh meat for his use. They had charming sport. They killed seventy-two of those great animals; and ate part of one of them and left the seventy-one to rot. In order to determine the difference between an anaconda and an earl, I had seven lambs turned into the anaconda's cage. The grateful snake immediately crushed one of them and swallowed it, then lay back satisfied. It showed no further interest in the iambs, and no inclination to harm them. I tried this experiment with other anacondas; always with the same result. The fact stood proven that the difference between an earl and an anaconda is that the earl is cruel and the anaconda isn't; and the earl wantonly destroyed what he has no use for, but the anaconda doesn't. This seemed to suggest that the anaconda was not descended from the earl. It also seemed to suggest that the earl was descended from the anaconda, and had lost a good deal in the transition. I was aware that many men who have accumulated more money than they can ever use have shown a hunger for more, and have not hesitated to cheat the ignorant and the helpless out of their poor servings in order to partially satisfy that appetite. I furnished a hundred different kinds of wild and domestic animals the opportunity to accumulate vast stores of food but none of them would do it. The squirrels and bees and certain birds made accumulations, but stopped when they gathered a winter's supply, and could not be persuaded to add to it either honestly or be trickery. These experiments convinced me that there is this difference between man and the higher animals; he is greedy, they are not. In the course of my experiments I convinced myself that among the animals man is the only one that harbors insults and injuries, broods over them, waits till a chance offers, then takes revenge. The passion of revenge is unknown to the higher animals.
单选题
By describing the buffalo hunting and his experiment with the anaconda, the author mainly wants to tell his readers that______ A. the anaconda is easily satisfied B. the earl is capable of committing wanton cruelty C. the earl's ancestor turned out to be the anaconda D. the anaconda does not harm other animals except when it is hungry
【正确答案】
B
【答案解析】[解析] 本题可参照文中的第一段。根据文中的“They killed seventy-two of those great animals；and ate part of one of them and left the seventy-one to rot”(他们杀死了72头野牛，最 终却只吃了一头牛的一部分，让剩余的71只烂掉)，而在蟒蛇的实验中，“The grateful snake immediately crushed one of them and swallowed it，then lay back satisfied．It showed no further interest in the lambs，and no inclination to harm them．”从中可知，蟒蛇吃饱后就不会再伤害其 他小羊。因此作者对蟒蛇的实验是为了证明伯爵的残忍和贪婪，B项为正确答案。
单选题
According to the author, in human society, the rich ______ A. tend to accumulate vast stores of food B. are inclined to gather more riches C. ate ready to help the poor D. is mostly cheaters
【正确答案】
D
【答案解析】[解析] 本题可参照文中的第二段。根据文中的“many men who have accumulated more money than they can ever use have shown a hunger for more，and have not hesitated to cheat the ignorant and the helpless out of their poor servings in order to partially satisfy that appetite．”可知， 许多富有的人很贪婪，他们还想要更多的钱，甚至通过欺骗无知的和无助的人达到聚敛更多 财富的目的。因此正确答案为D。
单选题
The author's experiments with different kinds of animals seem to prove that______ A. man is the highest animal B. man is superior to animals C. man is the lowest animal D. man is inferior to animals in certain respect
【正确答案】
D
【答案解析】[解析] 本题可参照文中的第二段。从中可知，许多动物在得到了足够供给生存的食物 后，就不会再增加食物，而人类却永无止境地追求物质利益。文中的“These exDeriments convinced me that there is this difference between man and the higher animals；he is greedy,they are not．”说明，人类是贪婪的，在某些方面人类要比动物低级。因此D项为正确答案。
单选题
We learn from the last paragraph that______ A. love of revenge is a unique characteristic of man B. man is the only animal capable of thinking C. human beings are capable of insulting and injuring each other D. man is better at taking chances than animals
【正确答案】
C
【答案解析】[解析] 根据最后一段中的“I convinced myselfthat among the animals man is the only one that harbors insults and injuries”可知，人类能彼此侮辱和伤害。因此C项为正确答案。
单选题
In this passage, the author writes in a (n)______ A. serious tone B. angry tone C. ironic tone D. matter-of-fact tone