单选题Previous research by scientists from Keil University in Germany monitored Adelie penguins and noted that the birds" heart rates increased dramatically at the sight of a human as far as 30 meters away. But new research using an artificial egg, which is equipped to measure heart rates, disputes this. Scientists from the Scott Polar Research Institute at Cambridge say that a slow moving human who does not approach the nest too closely, is not perceived as a threat by penguins. The earlier findings have been used to partly explain the 20 per cent drop in populations of certain types of penguins near tourist sites. However, tour operators have continued to insist that their activities do not adversely affect wildlife in Antarctica, saying they encourage non-disruptive behavior in tourists, and that the decline in penguin numbers is caused by other factors. Amanda Nimon of the Scott Polar Research Institute spent three southern hemisphere summers at Cuverville Island in Antarctica studying penguin behavior towards humans. "A nesting penguin will react very differently to a person rapidly and closely approaching the nest," says Nimon. "First they exhibit large and prolonged heart rate changes and then they often flee the nest leaving it open for predators (捕食者) to fly in and remove eggs or chicks." The artificial egg, specially developed for the project, monitored both the parent who had been disturbed when the egg was placed in the nest and the other parent as they both took it in turns to guard the nest. However, Boris Culik, who monitored the Adelie penguins, believes that Nimon"s findings do not invalidate his own research. He points out that species behave differently—and Nimon"s work was with Gentoo penguins. Nimon and her colleagues believe that Culik"s research was methodologically flawed because the monitoring of penguins" responses entailed capturing and restraining the birds and fitting them with heart-rate transmitters. Therefore, argues Nimon, it would not be surprising if they became stressed on seeing a human subsequently.

单选题It was my sad duty to ______ the news of John's death to his family.

单选题Poverty and domestic violence make it easy for her to trust that bad things will happen and take this ______ happiness away. A. adversary B. vulgar C. fragile D. superfluous

单选题The teacher's behavior and the student's response ______ what many people have said about language learning. A. confine B. conform C. consent D. confirm

单选题Without exposure to the cultural, intellectual, and moral traditions that are our heritage, we are excluded from a common world that 1 generations. On the one hand, such exclusion tends to 2 us to recreate everything, a needless and largely impossible task; On the other hand, it tends to make us 3 , to suggest that we are indeed the creators of the world and of all good ideas 4 in fact we are only a fragment of the history of man. 5 entirely to ourselves, we could make only the slimmest contributions to wisdom. While the humanities overlap the fine and liberal arts, they are also related of necessity to the sciences and to technology. Some of the 6 of the humanities raise questions about what ends are worthy to be 7 , what ideals deserve 8 . But since it is futile to know what is worth doing without having any idea of how to get things done, effective study in the humanities requires respect for and attainment of factual knowledge and technological skill. 9 , it is pointless to know how to get things done without having any idea what is worth doing, so that informed study in applied science demands 10 in the humanities.

单选题{{B}}Passage Two{{/B}} Most new words are made up from other earlier words; language-making is a conservative process, wasting little. When new words unfold out of old ones, the original meaning usually hangs around like an unrecognizable scent, a sort of secret. There are two immense words from Indo-European, gene and bheu, each a virtual anthill in itself, from which we have constructed the notion Of everything. At the beginning or as far back as they are traceable, they meant something like being. Gene signified beginning, giving birth, while bheu indicated existence and growth. Gene turned itself successively into kund jaz (Germanic) and gecynd (Old English), meaning kin or kind. Kind was at first a family connection, later an elevated social rank, and finally came to rest meaning kindly or gentle. Meanwhile, a branch of gene became the Latin gens which emerged as genus, genius, genital, and generous; then still holding on to its inner significance it became "nature" (out of gnasci). While gene was evolving into "nasture" and "kind" bheu was moving through similar transformations. One branch became the English word "build". It also moved into Greek, as phuein, meaning to bring forth and make grow; then as phusis, which was another word for nature. Phusis became the source of physic which at first meant natural science and later was the word for medicine. Still later, physic became physics. Both words, at today's stage of their evolution, can be taken together to mean, literally, everything in the universe. You do not come by words like this easily; they cannot just be made up from scratch. They need long lives before they can signify. "Everyting," C. S. Lewis observed in a discussion of the words, "is a subject on which there is not much to be said." The words themselves must show the internal marks of long use; they must contain their own inner conversation.

单选题Today we'll discuss proposals ______ the improvement of quality. M1 other proposals will be left to the next meeting. A. similar to B. relevant to C. familiar with D. regarded as

单选题The news you told me the other day has yet to be ______. A. affirmed B. informed C. conformed D. confirmed

单选题General acceptance of 3-D films may prove hard to come by, as the experience of three decades ago indicated. A. obtain B. explain C. understand D. discern

单选题D. sensitive

单选题The destruction of rainforests has been ______ as a disaster for the environment, A. blamed B. declared C. condemned D. appealed

单选题It would be difficult for a man of his political affiliation, ______, to become a senator from the South.

单选题USA is one of the Powers in the world, but it's a(n)______that in such a rich country there should be so many poor people.(2008年四川大学考博试题)

单选题Only men with strong______should climb in the Himalayas.

单选题Is the Canadian dollar equivalent to the U. S. dollar?

单选题Insects have inhabited the earth for well over 300 million years, and during that time they have evolved into an almost unbelievable variety of species. The astronomical numbers involved in any discussion of the insect world are difficult for the imagination to grasp. There are probably more than a million different species of them, compared with a mere 20,000 species of all other animals, and according to the best estimates roughly 1,018 individual insects are living at any given time. Most insects are completely harmless to man, and many are directly beneficial. Only about one-tenth of one percent of the insect world consists of species harmful to man, but throughout human history these have been a persistent threat. Many infectious diseases are transmitted to man by insects. Perhaps even more important, insects are man"s principal competitors (indeed his only serious competitors) for food. Nearly 40 percent of the world"s food crops is destroyed by insects each year. The battle against harmful insects has been fought for thousands of years, but man has never gained more than a transitory advantage. Whenever man has concentrated in significant numbers and practiced any form of agriculture, the insect population has inevitably risen because man"s crops and domesticated animals have provided a rich source of food for them. Efforts to reduce or eliminate harmful insect populations are on record from as far back as 1,000 B. C. An uneasy balance has occasionally been abandoned to the insects in hopes that the remaining yield would be sufficient for human needs. Whenever various circumstances, including man"s own mismanagement of the environment, have upset this balance and allowed the insect population to explode, the result has been a graphic demonstration of man"s inability to attain mastery over insects. The methods employed to control the growth of undesirable insects can be classified as biological, chemical, cultural, reproductive, mechanical and physical control. None of the above types of control, used by itself, has ever proved to be more than a temporary solution to the insect problem, but an integrated approach utilizing combinations of these methods can keep insect populations down to a point where farming remains economical. No method, however, offers any hope that unwanted insects will ever be eliminected altogether.