Text 2 The topic of cloning has been a politically and ethically controversial one since its very beginning. While the moral and philosophical aspects of the issues are entirely up to the interpretation of the individual, the application of cloning technology can be studied objectively. Many in the scientific community advocate the use of cloning for the preservation and support of endangered species of animals, which aside from cloning, have no other practical hope for avoiding extinction. The goal of the use of cloning to avoid extinction is the reintroduction of new genes into the gene pool of species with few survivors, this ensuring the maintenance and expansion of genetic diversity. Likely candidates for this technique are species known to have very few surviving members, such as the African Bongo Antelope, the Sumatran Tiger, and the Chinese Giant Panda. In the case of Giant Panda, some artificial techniques for creating offspring have already been performed, perhap
A. argue in favor of one side on a particularly controversial topic of cloning.
B. display both sides' arguments on another contentious issue in cloning.
C. redirect the readers' attention to the previously raised issue of ethics in cloning.
D. provide further relevant information to the evaluation of cloning as a preservation technique.
Text 2 The topic of cloning has been a politically and ethically controversial one since its very beginning. While the moral and philosophical aspects of the issues are entirely up to the interpretation of the individual, the application of cloning technology can be studied objectively. Many in the scientific community advocate the use of cloning for the preservation and support of endangered species of animals, which aside from cloning, have no other practical hope for avoiding extinction. The goal of the use of cloning to avoid extinction is the reintroduction of new genes into the gene pool of species with few survivors, this ensuring the maintenance and expansion of genetic diversity. Likely candidates for this technique are species known to have very few surviving members, such as the African Bongo Antelope, the Sumatran Tiger, and the Chinese Giant Panda. In the case of Giant Panda, some artificial techniques for creating offspring have already been performed, perhap
A. detail the process by which cloning in the panda population has been executed in the past.
B. guide the reader to consider the possibility of cloning in restoring the panda population.
C. demonstrate that the use of cloning to repopulate the panda species is a feasible goal.
D. inform the reader of how cloning would be carried out in the panda population.
Text 1
Extraordinary creative activity has been characterized as revolutionary, flying in the face of what is established and producing not what is acceptable but what will become accepted. According to this formulation, highly creative activity transcends the limits of an existing form and establishes a new principle of organization. However, the idea that extraordinary creativity transcends established limits is misleading when it is applied to the arts, even though it may be valid for the sciences. Differences between highly creative art and highly creative science arise in part from differences in their goals/’ For the sciences, a new theory is the goal and end result of the creative act. Innovative science produces new propositions in terms of which diverse phenomena can be related to one another in more coherent ways. Such phenomena as a brilliant diamond or a nesting bird are relegated to the r01e of data, serving as the means for formulating or testin
A. is cited with high frequency in. the publications of other scientists
B. is accepted immediately by the scientific community
C. does t Jot relegate particulars to the role of dam
D. introduces a new valid generalization
Text 3 Shopping has always been something of an impulse activity, in which objects that catch our fancy while strolling are immediately bought on a whim. Advertisers and sellers have taken advantage of this fact, carefully positioning inexpensive but attractive items on paths that we are most likely to cross, hoping that our human nature will lead to a greater profit for them. With the dawn of the Internet and its exploding use across the world, the same tactics apply. Advertisers now place "banners", links to commercial web sites decorated with attractive pictures designed to catch our eyes while browsing the webs, on key web sites with heavy traffic. They pay top dollar for the right, thus creating profits for the hosting web sites as well. These actions are performed in the hopes that during the course of our casual and leisurely web surfing, we’ll click on that banner that sparks our interest and thus, in theory, buy the products advertised. Initial res
A. come to the point.
B. fulfill their purpose.
C. fail of their success.
D. live up to their promise.
Text 2 The World Wide Web has been steadily creating a widespread surge in social capital through E-mail conversations, chat rooms, newsgroups, and e-zones. These ongoing connections are not an underground phenomenon, but a mainstream movement that is rapidly overwhelming traditional business models, according to the authors of another recent book, The Cluetrain Manifesto. "Our longing for the Web is rooted in the deep resentment we feel towards being managed," writes co-author David Weinberger, a columnist and commentator on the Web’s effect on business. The Cluetrain Manifesto argues that knowledge workers are finding it intolerable that their employers require them to speak in artificial "business voices". The Web has become the ideal alternative: a public place where people can converse in their "authentic voices", outside of an organization’s official communications channel. Some of the social capital generated by these indepe
A. helping with.
B. creating by.
C. substituting for.
D. arising from.
我来回答:
