单选题According to Paragraph 3, which of the following is the abnormal phenomenon?

单选题A person who sell heroin to a kid can be ______.

单选题The largest university in Canada is [A] University of Toronto. [B] McGill University. [C] University of Waterloo. [D] Laval University.

单选题The two factors concerning hurricanes that scientists most want to learn about are______.

单选题We can infer from the passage that" entomology" is______.

单选题 {{I}}Questions 11-13 are based on the following passage about an introduction to balloons. You now have 15 seconds to read Questions 11-13.{{/I}}

单选题Wily did the applicant reply" Then I'll never get the job"?

单选题Questions 14—16 are based on the following talk on Kwanzaa, an African American cultural holiday.

单选题A classic series of experiments to determine the effects of overpopulation on communities of rats was conducted by a psychologist, John Calhoun. In each experiment, an equal number of male and female adult rats were placed in an enclosure. The rat populations were allowed to increase. Calhoun knew from experience approximately how many rats could live in the enclosures without experiencing stress due to overcrowding. He allowed the population to increase to approximately twice this number. Then he stabilized the population by removing offspring that were not dependent on their mothers. At the end of the experiments, Calhoun was able to conclude that overcrowding causes a breakdown in the normal social relationships among rats, a kind of social disease. The rats in the experiments did not follow the same patterns of behavior as rats would in a community without overcrowding. The females in the rat population were the most seriously affected by the high population density. For example, mothers sometimes abandoned their pups, and, without their mother's care, the pups died. The experiments verified that in overpopulated communities, mother rats do not behave normally. Their behavior may be considered diseased, pathological. The dominant males in the rat population were the least affected by overpopulation. Each of these strong males claimed an area of the enclosure as his own. Therefore, these individuals did not experience the overcrowding in the same way as the other rats did. However, dominant males did behave pathologically at times. Their antisocial behavior consisted of attacks on weaker male, female, and immature rats. This deviant behavior showed that even though the dominant males had enough living space, they were affected by the general overcrowding, too. Nondominant males in the experimental rat communities also exhibited deviant social behavior. Some withdrew completely, avoiding contact with other rats. Other nondominant males were hyperactive, chasing other rats and fighting each other. The behavior of the rat population has parallels in human behavior. People in densely populated areas exhibit deviant behavior similar to that of the rats in Calhoun's experiments. In large urban areas, such as New York City, London, and Cairo, there are abandoned children. There are cruel, powerful individuals, both men and women. There are also people who withdrew and people who become hyperactive. Is this the principal cause of these disorders overpopulation? Calhoun's experiments suggest that it might be. In any case, social scientists and city planners have been influenced by the results of this series of experiments.

单选题Beads were probably the first durable ornaments humans possessed, and the intimate relationship they had with their owners is reflected in the fact that beads are among the most common items found in ancient archaeological sites. In the past, as today, men, women, and children adorned themselves with beads. In some cultures still, certain beads are often worn from birth until death, and then are buried with their owners for the afterlife. Abrasion due to daily wear alters the surface features of beads, and if they are buried for long, the effects of corrosion can further change their appearance. Thus, interest is imparted to the bead both by use and the effects of time. Besides their wearability, either as jewelry or incorporated into articles of attire, beads possess the desirable characteristics of every collectible. They are durable, portable, available in infinite variety, and often valuable in their original cultural context as well as in today's market. Pleasing to look at and touch, beads come in shapes, colors, and materials that almost compel one to handle them and to sort them. Beads are miniature bundles of secrets waiting to be revealed: their history, manufacture, cultural context, economic role, and ornamental use are all points of information one hopes to unravel. Even the most mundane beads may have traveled great distances and been exposed to many human experiences. The bead researcher must gather information from many diverse fields. In addition to having to be a generalist while specializing in what may seem to be a narrow field, the researcher is faced with the problem of primary materials that have little or no documentation. Many ancient beads that are of ethnographic interest have often been separated from their original cultural context. The special attractions of beads contribute to the uniqueness of bead research. While often regarded as the "small change of civilizations", beads are a part of every culture, and they can often be used to date archaeological sites and to designate the degree of mercantile, technological, and cultural sophistication.

单选题From the passage we know that the increased use of cars will ________.

单选题According to the passage, globalization takes over the part of empire because it______.

单选题You will hear three dialogues or monologues. Before listening to each one, you will have 5 seconds to read each of the questions which accompany it. While listening, answer each question by choosing A, B, C or D. After listening, you will have 10 seconds to check your answer to each question. You will hear each piece ONLY ONCE. Questions 11—13 are based on the following passage about Emily Dickinson.

单选题Questions 11—13 are based on the following passage. You now have 15 seconds to read Questions 11—13.

单选题Attending school-based after-school programs results in all of the following BUT