单选题{{B}}Text 2{{/B}} To understand how astrology works, we should first take a quick look at the sky. Although file stars are at enormous distances, they do indeed give the impression of being affixed to the inner surface of a great hollow sphere surrounding the earth. Ancient people, in fact, literally believed in the existence of such a celestial sphere. As the earth spins on its axis, the celestial sphere appears to turn about us each day, pivoting at points on a line with the earth's axis of rotation. This daily turning of the sphere carries the stars around the sky, causing most of them to rise and set, but they, and constellations they define, maintain fixed patterns on the sphere, just as the continent of Australia maintains its shape on a spinning globe of the earth. Thus the stars were called fixed stars. The motion of the sun along the ecliptic is, of course, merely a reflection of the revolution of the earth around the sun, but the ancients believed the earth was fixed and the sun had and independent motion of its own, eastward among the stars. The glare of sunlight hides the stars in daytime, but the ancients were aware that the stars were up there even at night, and the slow eastward motion of the sun around the sky, at the rate of about thirty degrees each month, caused different stars to be visible at night at different times of the year. The moon, revolving around the earth each month, also has an independent motion in the sky. The moon, however, changes it position relatively rapidly. Although it appears to rise and set each day, as does nearly everything else in the sky, we can see the moon changing position during as short an interval as an hour or so. The moon's path around the earth lies nearly in the same plane as the earth's path around the sun, so the moon is never seen very far from the ecliptic in the sky. There are five other objects visible to the naked eye that also appear to move in respect to the fixed background of stars on the celestial sphere. These are the planets Mercury, Venus, Mars, Jupiter, and Saturn. All of them revolve around the sun in nearly the same plane as the earth does, so they, like the moon, always appear near the ecliptic. Because we see the planets from the moving earth, however, they behave in a complicated way, with their apparent motions on the celestial sphere reflecting both their own independent motions around the sun and our motion as well.

单选题The world seems to be going diet crazy, and yet our nation's obesity rate has shot up year after year. And, it's not only the over 20 population that has to worry about their weight anymore. Children from kindergarten to twelfth grade are also experiencing the problems of an overweight lifestyle. According to the website cosmiverse, corn, 11% of adolescents are categorized as being overweight, and another 16% are in danger of becoming overweight. This is a 60% jump from the 1980's. Some of the blame is being put on schools wanting to fit more academic classes into the children's schedule rather than waste time on physical education. This new take on education has left us with physical activity at an all-time national low, resulting in obesity and poor physical conditioning at an all-time national high. The schools have tried a few solutions, the most recent in the news has been taking soda out of schools and increasing the required time children must be active during school. Will those methods help at all? Education is important at school, but starts at home. I believe students are getting their bad habits from watching their parents and how they eat and exercise. The school system only helps to hinder the child's dietary eating. I know there are studies showing genes that determine how a child will be built. That does not explain, however, why the rate continues to increase at such a rapid rate each year. It seems more likely that more and more families have both parents working, leaving their children to their own means for a meal. "Nintendo, TV, Playstation and the like," are what Physical Education teacher, Sue Arostegui, attributes the inactiveness to, "parents are either gone or too scared with today's society to let them out and play". Classes on health need to become more regular and sports need to be encouraged. At Live Oak High School, the staff does good job of teaching how to eat and exercise to stay healthy. The freshmen study health every Wednesday in P. E. , and Pare James teaches healthy eating and food preparation in Home Economics for the first few weeks of every school year. "Kids have no idea how many calories they are eating," said James of the overweight problems facing students. "Fast food is becoming more popular, it's easier and parents are busy. They are only setting their kids up to gain weight with that diet however". School cafeterias are also getting blamed for the students' eating habits. "Healthy eating should start at home," said L. O. H. S. cafeteria cook, Brenda Myers. "Too many kids are being raised on fast food. After eating so much fast food they don't have any tastes for real home cooked food. I always have healthy foods for students, but they are less likely to eat them. " Other schools do not even have the type of programs Live Oak offers and are suffering even worse consequences. Sports keep students fit and healthy. There need to be more readily available sports programs for anyone who would like to join. Many students when they feel they do not meet the standards for a team will admit defeat and drop off the team. There needs to be a program that all students will be interested in and continue through for the entire season. Schools can only do and be blamed for so much however, and it will be up to the parents to become more aware of what activities their children are participating in and how healthy they are eating. Until that happens, I foresee the obesity rate continuing on its uphill curve.

单选题I have come to the ___ that it would be unwise to accept his proposal.

单选题 {{B}}Questions 24—26 are based on a report about a book, "Paris: Capital of the World." You now have 15 seconds to read Questions 24—26.{{/B}}

单选题The Department is the lead provider of essential______, with responsibility for transport, ports and marine, freight, information and communication technology, major development, energy and security.

单选题How different is the group of Nevada test participants from their South Pacific counterparts?

单选题Equipment not ______ official safety standards has all been removed from the workshop. A. conforming to B. consistent with C. predominant over D. providing for

单选题There are four basic types of competition in business that form a continuum from pure competition through monopolistic competition and oligopoly (商品供应垄断) to monopoly. At one end of the continuum, pure competition results when every company has a similar product. Companies that deal in commodities such as wheat or corn are often involved in pure competition. In pure competition, it is often the ease and efficiency of distribution that influences purchase. In contrast, in monopolistic competition several companies may compete for the sale of items that may be substituted. The classic example of monopolistic competition is coffee and tea. If the price of one is perceived as too high, consumers may begin to purchase the other. Coupons and other discounts (折扣) are often used as part of a marketing strategy to influence sales. Oligopoly occurs when a few companies dominate the sales of a product or service. For example, only five airline carriers control more than 70 percent of all ticket sales in the United States. In oligopoly, serious competition is not considered desirable because it would result in reduced revenue for every company in the group. Although price wars do occur, in which all companies offer substantial savings to customers, a somewhat similar tendency to raise prices simultaneously is also usual. Finally, monopoly occurs when only one firm sells the product. Some monopolies have been tolerated for producers of goods and services that have been considered basic or essential, including electricity and water. In these cases, it is government control, rather than competition, that protects and influences sales.

单选题When the author says that "the results of the protests and other tactics have been mixed" (in Par

单选题Human choice, not the intrinsic content of science, determines the outcome and scientists, as human beings, therefore have a special responsibility to provide council rooted in______ A. expiration B. explanation C. expertise D. expenditure

单选题The old musician decided to move to her country home______her advanced age and poor health.

单选题He has just ______ to a letter from a friend of his in Japan. A. answered B. offered C. returned D. replied

单选题Directions; Below is a summary of some of the main points of the passage. Read the summary and then select the best word or phrase from the box below, according to the passage. You should decide on the best choice and mark the corresponding letter on the Answer Sheet with a single line through the center. A dreadful H authority B hardest to I previous century C elated J marked D slow down K were reversed E boost L were abandoned F last two centuries M concentrate G mass migration N power Increasing numbers of people have migrated from the countryside and moved into towns and cites over (17) . Most are in the Third World, where they are (18) accommodate because facilities are at their most inadequate and meager resources are most stretched. In spite of (19) living conditions, the vast numbers of people moving into cities constitute the biggest (20) ever. While governments can take action to improve the conditions of squatters, the real solution is to (21) the process of urbanization. But to do this governments need to change the ways in which they (22) their development funds on the urban areas. If their priorities (23) rural productivity could be increased and this would help develop the national economy. In the end, however, the rural population also lacks the (24) that their urban countrymen can exert on governments.

单选题______ does he know that the police are about to arrest him.

单选题The buffalo which the lion fells provokes his aggression as little as the appetizing turkey which I have just seen hanging in the larder provokes______.

单选题Future scientific discoveries will make possible the further prolongation of the human life______ A. condition B. well-being C. pursuit D. span

单选题The government claimed that it was accidental, but the hollow and ______ excuse could not convince the public. A. feeble B. deliberate C. fluent D. delicate