单选题Concerned people want to ______ the risk of developing cancer.

单选题"What courses are you going to do next semester?" "I don"t know. But it"s about time______on something."

单选题The meeting was ______ over by the mayor to discuss the toll of crossing the bridges in Wuhan.

单选题The multibillion-dollar fitness industry ______ fat profits from our hunger to look good. A. comes in B. gets in C. ropes in D. rakes in

单选题{{B}}Passage 1{{/B}} The way people hold to the belief that a fun-filled, painfree life equals happiness actually reduces their chances of ever attaining real happiness. If fun and pleasure are equal to happiness then pain must be equal to unhappiness. But in fact, the opposite is true: more often than not things that lead to happiness involve some pain. As a result, many people avoid the very attempts that are the source of true happiness. They fear the pain inevitably brought by such things as marriage, raising children, professional achievement, religious commitment (承担的义务), self-improvement. Ask a bachelor (单身汉) why he resists marriage even though he finds dating to be less and less satisfying. If he is honest he will tell you that he is afraid of making a commitment. For commitment is in fact quite painful. The single life is filled with fun, adventure, excitement. Marriage has such moments, but they are not its most distinguishing features. Couples with infant children are lucky to get a whole night's sleep or a three-day vacation. I don't know any parent who would choose the word fun to describe raising children, But couples who decide not to have children never know the joys of watching a child grow up or of playing with a grandchild. Understanding and accepting that true happiness has nothing to do with fun is one of the most liberating realizations. It liberates time: now we can devote more hours to activities that can genuinely increase our happiness. It liberates money; buying that new car or those fancy clothes that will do nothing to increase our happiness now seems pointless. And it liberates us from envy: we now understand that all those who are always having so much fun actually may not be happy at all.

单选题These photos of my family ______ happy memories of my early childhood.

单选题A feeling of tiredness almost ______ the soldier on duty and he had to struggle hard to keep awake. A. overcame B. defeated C. conquered D. overtook

单选题" Tear ' em apart!' " " Kill the fool!" " Murder the referee!" These are common remarks one may hear at various sporting events. At the time they are made, they may seem innocent enough. But let's not kid ourselves. They have been known to influence behavior in such a way as to lead to real bloodshed. Volumes have been written about the way words affect us. It has been shown that words having certain connotations may cause us to react in ways quite foreign to what we consider to be our usual humanistic behavior. I see the term "opponent" as one of those words. Perhaps the time has come to delete it from sports terms. The dictionary meaning of the term "opponent" is "adversary" , "ememy" , "one who opposes your interests. " Thus, when a player meets an opponent, he or she may tend to treat that opponent as an enemy. At such times, winning may dominate one's intellect, and every action, no matter how gross, may be considered justifiable. I recall an incident in a handball game when a referee refused a play's request for a time out for a glove change because he did not considered them wet enough. The player proceeded to rub his gloves across his wet T-shirt and then exclaimed. " Are they wet enough now?" In the heat of battle, players have been observed to throw themselves across the court without considering the consequences that such a move might have on anyone in their way. I have also witnessed a player reacting to his opponent's international and illegal blocking by deliberately hitting him with the ball as hard as he could during the course of play. Off the court, they are good friends. Does that make any sense? It certainly gives proof of a court attitude which departs from normal behavior. Therefore, I believe it is time we elevated the game to the level where it belongs thereby setting an example to the rest of the sporting world. Replacing the term "opponent" with "associate" could be an ideal way to start. The dictionary meaning of the term "associate" is "colleague"; "friend"; "companion. " Reflect a moment! You may soon see and possibly feel the difference in your reaction to the term "associate" rather than "opponent."

单选题The______British theoretical physicist Stephen Hawking once said in an interview that heaven is a fairy story for people afraid of the dark.

单选题Last week, the Us bishops adopted rules to take priests who minors out of any ministerial activities.

单选题The entire family is ______ in scientific research.

单选题The international Olympic Games, A(regarded) as the world's most B(prestigious) athletic competition, C(take place) once D(every the four years).

单选题Scientists are ______certain that there is a cancer-inhibiting agent in the blood of the shark. A.dubiously B.virtually C.queerly D.randomly

单选题I hope their plan will work, but they themselves are very______ that it will.

单选题Some anthropologists claim that a few aps have been taught a rudimentary sign languages, but skeptics argue that the apes are only __________ their trainers.

单选题{{B}}Passage Three{{/B}} Scholars often seem to operate on the assumption that any analysis with a rosy outlook simply does not adequately understand the matter at hand. Ecotourism researchers have not been derelict in this regard, as the literature review earlier showed. All the researchers who have looked at Capirona's project, however, have been impressed by its grassroots nature and are optimistic about its potential as eco-development (Colvin 1994; Wesche 1993; Silver 1992). All of these researchers, however, visited the community in its early years of operation. As mentioned previously, recent, non-scholarly reports are less positive. Thus there remains some doubt as to the long-term viability of even such a model of indigenous ecotourism development as Capirona. This study originally proposed to study Capimna's project, but that community was weary of such research visits and refused a request to carry out the study there. Palo Blanco, though completing only its first year of ecotourism developmemt was chosen as an alternate site. Perhaps it should not be surprising that the prospects for ecotourism in Rio Blanco appear, as they did in Capirona quite bright. Ecotourism development efforts differ from mainstream development efforts in that, aside from start-up loans, much or all of the continuing financial support comes from tourists rather than from governments or development agencies. As a result, the two main players many ecotourism endeavor—the hosts and the guests—are driven by differing motivations. The local population hopes to improve its own lot by taking advantage of the curiosity, disposable income, and in some cases, perhaps, good intentions of ecotourists. The tourists want to "explore the natural wonders of the world," whether that be a wildebeest migration across the Serengeti or the march of leaf-cutter ants across the jungle floor (Ryan and Grasse 1991: 166). In contrast to mass tourism, ecotourism permits tourists to seek educational self-fulfillment in the form of travel, and tries to transform that activity into something that benefits the greater good—specifically, to fund environmental preservation, rural development, and even cultural survival. However, in order to satisfy everyone—tourists, environmentalists, tour operators and the local hosts—ecotourism must bring into aliganment a variety of contradictory purposes. Ecotourism promotes feelings among tourists that they are part of the solution when, in fact, the very act of flying a thousand miles or more to their destination consumes resources and pollutes the enviroment (cf. Somerville 1994). The beauty of ecotourism is that it can exploit this egotistic motivation; the flaw is that it is forever limited by it. Even a brief foray into development literature, however, shows that flawed conceptualizations are the rule, not the exception. As development, ecotourism may be no more inchoate than any other approach, and in some ways it is as progressive as any theory. For example, ecotourism twin development goals—conserving the environment and benefiting local peoples—are increasingly seen, both within and outside of tourism circles, as interdependent. Without economic development, many argue that environmental conservation is neither ethical nor sustainable (Boo 1990: 1; West and Brechin 1992: 14; Brandon and Wells 1992). Such conservation can be achieved only by providing local people with alternative income sources which do not threaten to deplete the plants and amamis within the protected zone (Brandon and Wells 1992: 557). Most research on this issue, however, assumes that the protective regulations have been established by the government or another external ageacy. In Rio Blanco, however, the people themselves are already acting to protect their land.

单选题An extensive foundation in the basic sciences should be required of all science students, ______.

单选题We think ______ possible for them to fulfil their task in a few weeks.