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在星期六，张山建议李思下周不工作陪他到某个山区旅游。李思拒绝了，自称他既支付不起旅游费用又得因为请假而被扣工资。然而，费用很明显不是李思不愿陪张山到那个山区旅游的真正原因，因为每次张山邀请他参加一个事先没有安排的旅行时，不管张山计划上哪儿，李思都给出同样的理由。 上面的推论最易受到下面哪一项的攻击
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阅读下面这篇短文，短文后列出了7个句子，请根据短文的内容对每个句子作出判断。如果该句提供的是正确信息，请选择A项：如果该句提供的错误信息，请选择B项：如果该句的信息文章中没有提及，请选择C项。 Tanning Parlors Take Heat People who seek a glamorous tan through sun lamps may double their risk of developing Common types of skin cancer, according to a new study that found the risk was highest for those who start at a young age. The study, appearing in the latest issue of Journal of the US National Cancer Institute, concluded that people who use tanning devices were 1.5 to 2.5 times more likely to have common kinds of skin cancer than were people who did not use the devices. The study confirmed what doctors have long suspected-that sun lamp use increases the risk of basal cell and squamous cell skin cancers, said Margaret R. Karagas, first author of the study. Either going to the tanning parlor, or getting an infrequent sunburn can seriously damage the skin, said Dr. James Spencer, vice chairman of the department of dermatology at Mount Hospital, but the small day-to-day exposure is worse for the skin in the long run. Joseph A. Levy, vice president of the International Smart Tan Network, however, said occasional sunburn "is a risk factor in all forms of skin cancer and intermittent sunburn is what the tanning industry is trying to stop. ’ In the study, Karagas and her colleagues interviewed 603 basal cell skin cancer patients and 293 with squamous cell skin cancer. They talked to 540 control subjects who did not have either type of skin cancer. About 1 million Americans are diagnosed annually with skin cancer. Among those skin cancer patients, about 80 percent are with basal cell skin cancer, 16 percent, with squamous cell skin cancer and 4 percent with melanoma-the most serious form of skin cancers. Back to the interviewed patients, 190 reported that they had used tanning devices at some time. In the control groups, only 75 had used such devices. Karagas said a statistical analysis shows that those who used tanning equipment were 2.5 times more likely to get squamous cell skin cancer than those who had not used the devices. For basal cell cancer, the risk was 1.5 times greater. The risk was highest for those who first used the tanning devices before the age of 20, said Karagas. For this group, the squamous cell cancer risk was 3.6 times greater than that of the controls while the basal cell cancer risk was 1.3 times greater. Doctor James Spencer’s argument implies that in the long run, getting all infrequent sunburn is worse than the small day-to-day exposure.
阅读下面这篇短文，短文后列出了7个句子，请根据短文的内容对每个句子作出判断。如果该句提供的是正确信息，请选择A项：如果该句提供的错误信息，请选择B项：如果该句的信息文章中没有提及，请选择C项。 Tanning Parlors Take Heat People who seek a glamorous tan through sun lamps may double their risk of developing Common types of skin cancer, according to a new study that found the risk was highest for those who start at a young age. The study, appearing in the latest issue of Journal of the US National Cancer Institute, concluded that people who use tanning devices were 1.5 to 2.5 times more likely to have common kinds of skin cancer than were people who did not use the devices. The study confirmed what doctors have long suspected-that sun lamp use increases the risk of basal cell and squamous cell skin cancers, said Margaret R. Karagas, first author of the study. Either going to the tanning parlor, or getting an infrequent sunburn can seriously damage the skin, said Dr. James Spencer, vice chairman of the department of dermatology at Mount Hospital, but the small day-to-day exposure is worse for the skin in the long run. Joseph A. Levy, vice president of the International Smart Tan Network, however, said occasional sunburn "is a risk factor in all forms of skin cancer and intermittent sunburn is what the tanning industry is trying to stop. ’ In the study, Karagas and her colleagues interviewed 603 basal cell skin cancer patients and 293 with squamous cell skin cancer. They talked to 540 control subjects who did not have either type of skin cancer. About 1 million Americans are diagnosed annually with skin cancer. Among those skin cancer patients, about 80 percent are with basal cell skin cancer, 16 percent, with squamous cell skin cancer and 4 percent with melanoma-the most serious form of skin cancers. Back to the interviewed patients, 190 reported that they had used tanning devices at some time. In the control groups, only 75 had used such devices. Karagas said a statistical analysis shows that those who used tanning equipment were 2.5 times more likely to get squamous cell skin cancer than those who had not used the devices. For basal cell cancer, the risk was 1.5 times greater. The risk was highest for those who first used the tanning devices before the age of 20, said Karagas. For this group, the squamous cell cancer risk was 3.6 times greater than that of the controls while the basal cell cancer risk was 1.3 times greater. The passage confirms that using tanning equipment is harmful to one’s health.
第二篇 Electronic Mail During the past few years, scientist the world over have suddenly found themselves productively engaged in task they once spent their lives avoiding-writing, any kind of writing but particularly letter writing. Encouraged by electronic mail’s surprisingly high speed, convenience and economy, people who never before touched the stuff are regularly, skillfully, even cheerfully tapping out a great deal of correspondence. Electronic networks, woven into the fabric of scientific communication these days, are the route to colleagues in distant counties, shared data, bulletin boards and electronic journals. Anyone with a personal computer, a modem and the software to link computers over telephone lines can sign on. An estimated five million scientists have done so with more joining every day, most of them communicating through a bundle of interconnected domestic and foreign routes known collectively as the internet, or net. E-mail is staring to edge out the fax, the telephone, overnight mail, and of course, land mail. It shrinks time and distance between scientific collaborators, in par[ because it is conveniently asynchronous (writers can type while their colleagues across time zones sleep; their message will be waiting). If it is not yet speeding discoveries, it is certainly accelerating communication. Jeremy Bernstei, the physicist and science writer, once called E-mail the physicist’s umbilical cord. Lately other people, too, have been discovering its connective virtues. Physicists are using it; college students are using it, everybody is using it, and as a sign that it has come of age, the New Yorker has accelerates its liberating presence with a cartoon--an appreciative dog seated at a keyboard, saying happily, "On the Internet, nobody knows you’re a dog." What does the sentence "If it is not speeding discoveries, it is certainly accelerating communication" most probably mean
阅读下面这篇短文，短文后有2项测试任务：(1)1～4题要求从所给的6个选项中为第 2～5段每段选择1个正确的小标题：(2)第5～8题要求从所给的6个选项中选择4个正确的选项，分别完成每个句子。请将答案写在相应的位置上。 Optimists Really Do Live Longer, Say Scientists 1. For the philosopher Arthur Schopenhauer optimism was fundamentally wrong banal and corrupting, while the father of psychoanalysis Sigmund Freud simply declared it to be neurotic. 2. Experience shows that looking on the bright side of life does have advantages and recent scientific evidence points to the positive mindset(思想倾向) as being beneficial to health. In other words optimists live longer. 3. That was the conclusion reached by experts at the Mayo Clinic in the US State of Minnesota who evaluated answers given by people to a set of questions in the 1960s. Of the 729 candidates, 200 had died and according to scientists, there were a disproportionate number of pessimists among them. 4. The points more on the pessimism scale-that was the difference between "slightly pessimistic" and "averagely pessimistic"-were enough to boost a person’s chances of dying by 19 percent, according to the study by prominent psychologist Martin Seligman of the University of Pennsylvania. 5. The study does not say why pessimists die but an older survey taken among children in SanFrancisco and Los Angeles makes it clear that personal attitude towards the world is a key factor in the longevity equation. 6. The latest evidence to support the theory that optimists tend to cope better with illness of all kinds has been provided by professor Ralf Schwarzer of Berlin’s Free University who questioned 600 heart and lung patients. His conclusion: optimists recover more swiftly from operations than their pessimistic counterparts, tend to be happier after treatment and return to work more swiftly. 7. There have been suggestions that optimists do not stay healthier but rather turn into optimists later because they enjoy good health. Numerous surveys have taken into account a person’s state of health at the outset (最初) and the effect remains the same. 8. Studies have shown that optimists do not blind themselves to reality either. They thus interpret it in a positive way. "Sublimating (vi.升华) and denying things tend to alter reality but illusions are a way of seeing reality in the best light," said California. 9. German science journal Bild der Wissenschaft, which carries a major article on the topic in its current March issue, commented on "the right attitude" to having a tumor. 10. It seems psychotherapy can go some way towards extending the life span and life quality of a sick person although a complete recovery using psychological technique alone is unlikely. 11. Doctors like, however, to point to the example of US cycling professional Lance Armstrong, who was seriously ill with cancer, but whose unshakeable optimism helped him to take the top trophy twice at cycling’s premiers Tour de France. 12. The magazine also quoted a study by Sheldon Cohens of the Caregie Mellon University in Pittsburgh: 420 volunteers were deliberately infected with strains of various common cold viruses. A day later checks were carried out to see who had caught a cold. 13. The results showed that in the case of people who had satisfactory, long-term relations with friends, neighbors or colleagues, the virus was less likely to trigger a cold. Of people with three of fewer firm relationships 62 percent became ill compared with only 35 percent of those who had six or more close human links. An optimist doesn’t necessarily try______.
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