1、Another major shift in the model for Internet commerce concerns the technology available for marketing. Until recently, Internet marketing activities have focused on strategies to “pull” customers into sites. In the past year, however, software companies have developed tools that allow companies to
2、“push” information directly out to consumers, transmitting marketing messages directly to targeted customers. Most notably, the Pointcast Network uses a screen saver to deliver a continually updated stream of news and advertisements to subscribers computer monitors. Subscribers can customize the inf
3、ormation they want to receive and proceed directly to a companys Web site. Companies such as Virtual Vineyards are already starting to use similar technologies to push messages to customers about special sales, product offerings, or other events. But push technology has earned the contempt of many W
4、eb users. Online culture thinks highly of the notion that the information flowing onto the screen comes there by specific request. Once commercial promotion begins to fill the screen uninvited, the distinction between the Web and television fades. Thats a prospect that horrifies Net purists.But it i
5、s hardly inevitable that companies on the Web will need to resort to push strategies to make money. The examples of Virtual Vineyards, A, and other pioneers show that a Web site selling the right kind of products with the right mix of interactivity, hospitality, and security will attract online cust
6、omers. And the cost of computing power continues to free fall, which is a good sign for any enterprise setting up shop in silicon. People looking back 5 or 10 years from now may well wonder why so few companies took the online plunge.55. We learn from the beginning of the passage that Web business _
7、.A has been striving to expand its marketB intended to follow a fanciful fashionC tried but in vain to control the market（A）D has been booming for one year or so56. Speaking of the online technology available for marketing, the author implies that _.A the technology is popular with many Web usersB b
8、usinesses have faith in the reliability of online transactionsC there is a radical change in strategy（C）D it is accessible limitedly to established partners57. In the view of Net purists, _.A there should be no marketing messages in online cultureB money making should be given priority to on the Web
9、C the Web should be able to function as the television set（D）D there should be no online commercial information without requests58. We learn from the last paragraph that _.A pushing information on the Web is essential to Internet commerceB interactivity, hospitality and security are important to onl
10、ine customersC leading companies began to take the online plunge decades ago（B）D setting up shops in silicon is independent of the cost of computing powerText 3An invisible border divides those arguing for computers in the classroom on the behalf of students career prospects and those arguing for co
11、mputers in the classroom for broader reasons of radical educational reform. Very few writers on the subject have explored this distinction - indeed, contradiction - which goes to the heart of what is wrong with the campaign to put computers in the classroom.An education that aims at getting a studen
12、t a certain kind of job is a technical education, justified for reasons radically different from why education is universally required by law. It is not simply to raise everyones job prospects that all children are legally required to attend school into their teens. Rather, we have a certain concept
13、ion of the American citizen, a character who is incomplete if he cannot competently assess how his livelihood and happiness are affected by things outside of himself. But this was not always the case; before it was legally required for all children to attend school until a certain age, it was widely
14、 accepted that some were just not equipped by nature to pursue this kind of education. With optimism characteristic of all industrialized countries, we came to accept that everyone is fit to be educated. Computer-education advocates forsake this optimistic notion for a pessimism that betrays their o
15、therwise cheery outlook. Banking on the confusion between educational and vocational reasons for bringing computers into schools, computered advocates often emphasize the job prospects of graduates over their educational achievement.There are some good arguments for a technical education given the r
16、ight kind of student. Many European schools introduce the concept of professional training early on in order to make sure children are properly equipped for the professions they want to join. It is, however, presumptuous to insist that there will only be so many jobs for so many scientists, so many
17、businessmen, so many accountants. Besides, this is unlikely to produce the needed number of every kind of professional in a country as large as ours and where the economy is spread over so many states and involves so many international corporations.But, for a small group of students, professional tr
18、aining might be the way to go since well-developed skills, all other factors being equal, can be the difference between having a job and not. NBAC will ask that Clintons 90-day ban on federal funds for human cloning be extended indefinitely, and possibly that it be made law. But NBAC members are pla
19、nning to word the recommendation narrowly to avoid new restrictions on research that involves the cloning of human DNA or cells - routine in molecular biology. The panel has not yet reached agreement on a crucial question, however, whether to recommend legislation that would make it a crime for priv
20、ate funding to be used for human cloning.In a draft preface to the recommendations, discussed at the 17 May meeting, Shapiro suggested that the panel had found a broad consensus that it would be “morally unacceptable to attempt to create a human child by adult nuclear cloning.” Shapiro explained dur
21、ing the meeting that the moral doubt stems mainly from fears about the risk to the health of the child. The panel then informally accepted several general conclusions, although some details have not been settled.NBAC plans to call for a continued ban on federal government funding for any attempt to
22、clone body cell nuclei to create a child. Because current federal law already forbids the use of federal funds to create embryos （the earliest stage of human offspring before birth） for research or to knowingly endanger an embryos life, NBAC will remain silent on embryo research.NBAC members also in
23、dicated that they will appeal to privately funded researchers and clinics not to try to clone humans by body cell nuclear transfer. But they were divided on whether to go further by calling for a federal law that would impose a complete ban on human cloning. Shapiro and most members favored an appea
24、l for such legislation, but in a phone interview, he said this issue was still “up in the air.”63. We can learn from the first paragraph that _.A federal funds have been used in a project to clone humansB the White House responded strongly to the news of cloningC NBAC was authorized to control the m
25、isuse of cloning technique（B）D the White House has got the panels recommendations on cloning64. The panel agreed on all of the following except that _.A the ban on federal funds for human cloning should be made a lawB the cloning of human DNA is not to be put under more controlC it is criminal to us
26、e private funding for human cloning（C）D it would be against ethical values to clone a human being65. NBAC will leave the issue of embryo research undiscussed because _.A embryo research is just a current development of cloningB the health of the child is not the main concern of embryo researchC an e
27、mbryos life will not be endangered in embryo research（D）D the issue is explicitly stated and settled in the law66. It can be inferred from the last paragraph that _.A some NBAC members hesitate to ban human cloning completelyB a law banning human cloning is to be passed in no timeC privately funded
28、researchers will respond positively to NBACs appeal（A）D the issue of human cloning will soon be settledText 5Science, in practice, depends far less on the experiments it prepares than on the preparedness of the minds of the men who watch the experiments. Sir Isaac Newton supposedly discovered gravit
29、y through the fall of an apple. Apples had been falling in many places for centuries and thousands of people had seen them fall. But Newton for years had been curious about the cause of the orbital motion of the moon and planets. What kept them in place? Why didnt they fall out of the sky? The fact that the apple fell down toward the earth and not up into the tree answered the question he had been asking himself about those larger fruits of the h
copyright@ 2008-2023 冰点文库 网站版权所有
经营许可证编号:鄂ICP备19020893号-2
升级会员 