Scientists around the world are racing to learn how to rapidly diagnose, treat and stop the spread of a new, deadly disease. SARS — Severe Acute Respiratory Syndrome — was (1) for the first time in February 2003 in Hanoi, (2) since then has infected more than 1,600 people in 15 countries, killing 63. At this (3) , there are more questions than answers surrounding the disease.Symptoms start (4) a fever over 100.4 degrees F, chills, headache or body (5) . Within a week, the patient has a dry cough, which might (6) to shortness of breath. In 10% to 20% of cases, patients require (7) ventilation to breathe. About 3.5% die from the disease. Symptoms (8) begin in two to seven days, but some reports suggest it (9) take as long as 10 days. Scientists are close to (10) a lab test to diagnose SARS. In the meantime, it is diagnosed by its symptoms. There is no evidence (11) antibiotics or anti-viral medicines help, (12) doctors can offer only supportive care. Patients with SARS are kept in isolation to reduce the risk of (13) . Scientists aren’t sure yet, but some researchers think it’s a (14) discovered corona virus, the family of viruses that cause some common colds.Most cases appear to have been passed (15) droplets expelled when infected patients cough or sneeze. Family members of infected people and medical workers who care (16) them have been most likely to (17) the illness. But recent developments in Hong Kong suggest that the (18) might spread through air, or that the virus might (19) for two to three hours on doorknobs or other (20) . Health experts say it is unlikely, though, that sharing an elevator briefly with an infected person would be enough to pass the virus. 3()
A. time
B. point
C. aspect
D. instance
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She took a taxi to the station for fear that she______(错过去目的地城市的火车).
A tax which is easy to collect should not involve a lot of trouble and______.
According to new research simple words such as ’be’, ’that’, ’will’, ’him’, ’and’ and even ’a’ could hold the key to a successful marriage. Experts say the style in which couples talk and how they use common words can predict whether a relationship will be successful or not.It is already well known that people are attracted to potential partners who resemble themselves in personality, values and physical appearance. However, experts now claim these features only skim the surface of what makes a relationship work. The ways that people talk are also important according to the study which found that people who speak in a similar style are more compatible. The U.S. study focused on what it dubbed ’function words’.These are not nouns or verbs, but everyday words such as a, be, anything, that, will, him and even and. Study coauthor Professor James Pennebaker, of Texas University, said how we use these words constitutes our writing and speaking style and couples who use them in the same way have better and longer-lasting partnerships.Researchers examined whether the speaking and writing styles couples adopt during conversation with each other predict future dating behaviour and the long-term strength of relationships. They conducted two experiments in which a computer programme compared partners’ language styles.In the first study, pairs of college students had four-minute speed dates while their conversations were recorded. Almost every pair covered the same topics, such as their study subject, where they were from and if they liked college. Prof Pennebaker said: "Every conversation sounded more or less the same to the naked ear, but text analysis revealed obvious differences in language synchrony (同步). The pairs whose language style matching scores were above average were almost four times as likely to want future contact as pairs whose speaking styles were out of sync."A second study revealed the same pattern in everyday online chats between dating couples over the course of 10 days. Almost 80 percent of the couples whose writing style matched were still dating three months later, compared with approximately 54 percent of the couples who did not match as well.Prof Pennebaker said: "What people are saying to each other is important, but how they are saying it may be even more telling. But what’s wonderful about this is we don’t really make that decision—it just comes out of our mouths. People are not consciously synchronizing their speech.\ Prof Pennebaker suggested that () may have a greater effect on their relationships.
Despite the scandals over leaked e-mails, the scientific evidence for global warming remains strong. The question, then, is to what (62) have the controversies eroded (消弱) the public’s trust in climate science or, worse, in the scientists themselvesThere has (63) been some decline. (64) , a closer look at the data across multiple polls shows that, broadly speaking, the public trusts scientists, believes in global warming and wants governments to do something about it. The public seems to have done what the mainstream media could not: it has kept the scandals in (65) . The harsh verbal attacks (66) climate science and scientists are actually coming from a (67) handful of critics, and they do not (68) a broader revival of skepticism.Yet few climate scientists are likely to take (69) in this news. For them, the real (70) of public trust is the level of political (71) on global warming: if people truly believe the science, (72) why have so few of them demanded action of their governments The problem is that people assess information from any number of (73) , not just scientists. And people make decisions on the (74) of self-interest and their own hopes, fears and values, which will not necessarily (75) what many researchers deem self-evident.The scientific community must recognize that the (76) surrounding climate change can produce responses in the public and politicians on many different levels. Facts (77) matter. Scientists must continue to engage the public in plain language, (78) the evidence for climate change in a clear and (79) way. And they must provide policy-makers with accurate, credible and (80) information. Scientists will be only as persuasive as they are trusted, which means that cultivating the public’s trust must be the scientific community’s top (81) . 72()
A. even
B. but
C. then
D. or