user: Ques:Read the following article and select the best answer. Article: Common sense would tell us that physically active children may be more likely to become active and healthy adults. In the United States, elementary and middle schools are advised to give students two and a half hours of physical activity a week. That is what the Centers for Disease Control and Prevention and the American Heart Association recommend. They say high schools should provide about four hours of physical activity each week. Yet many schools across the country have reduced their physical education programs. Just this week, a study reported that life _ has fallen or is no longer increasing in some parts of the United States. The situation is worst among poor people in the southern states, and especially women. Public health researchers say it is largely the result of increases in fatness, smoking and high blood pressure. They also blame differences in health services around the country. In 2006, a study found that only four percent of primary schools provided daily physical education all year for all grades. This was true of eight percent of middle schools and two percent of high schools. The study also found that twenty-two percent of all schools did not require students to take any P.E. Charlene Burgeson , a health expert says one problem for P.E. teachers is that schools are under pressure to put more time into academic subjects. Also, parents may agree that children need exercise in school. Yet many parents today still have bad memories of being chosen last for teams because teachers favored the good athletes in class. But experts say P.E. classes have changed. They say the goal has moved away from competition and toward personal performance, as a way to build a lifetime of activity. These days, teachers often lead activities like weight training and yoga. Some parents like the idea of avoiding competitive sports in P.E. class. Yet others surely dislike that idea. In the end, schools may find themselves in a no-win situation. Question: What is the main idea about this passage? - P.E. is the most important subject for all students. - P.E has changed its goal for some reasons in America. - It introduces us the present situation of P.E in American schools and its cause. - P.E can help students improve their academic subjects.

Ans:It introduces us the present situation of P.E in American schools and its cause.
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Ques:Read the following article and select the best answer. Article: It just may be the world's most costly vacuum cleaner ( ). The price of CleanSpace One is eleven million dollars. But yet, it has a big job to do. Recently, researchers in Switzerland said they planned to build this new cleaning machine. CleanSpace One will not be for use in homes or businesses. It will be shot into space to help remove thousands of pieces of space junk floating around up there. Last year, we reported on the problem of space junk. Over time, many unused spacecraft have hit each other far above the Earth. Big pieces break into thousands of small pieces. Sometimes they fall back into the atmosphere   and burn up. But when they do not, it creates big problems. Scientists fear that if something is not done to remove these objects, it may soon become too dangerous to send people and machines into space. There is a large chance that they might hit some of this junk. So that is why the Swiss researchers are developing the new machine. CleanSpace One is not really a vacuum cleaner. It will not be used to take away space junk. But scientists plan to move it close to an old satellite that is no longer being used. Then a claw-like instrument will catch the satellite, and force it back through the atmosphere. There, the satellite will be destroyed by the heat of friction   with the air. Researchers say that all they need to do is slow down the speed of some of these unwanted objects. Once they begin to move more slowly, they will fall back to the Earth. There is little chance that they will fall through the atmosphere and harm the people or things below. Question: Space junk is created when  _  . - unused spacecraft hit each other - people in space throw away rubbish - a new spaceship is sent up - an old spaceship creates friction with the air

Ans:unused spacecraft hit each other
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Ques:Read the following article and select the best answer. Article: The British Museum Description:     The British Museum is a museum in London, which is one of the world's greatest museums of human history and culture. Its collections, which number more than 13 million objects, are amongst the largest and most comprehensive in the world and originate from all continents, illustrating and documenting the story of human culture from its beginning to the present. The British Museum was established in 1753, largely based on the collections of the physician and scientist Sir Hans Sloane. The museum first opened to the public on 15 January 1759 in Montagu House in Bloomsbury, on the site of the current museum building. Its expansion over the following two and a half centuries was largely a result of an expanding British colonial footprint and has resulted in the creation of several branch institutions. Until 1997, when the British Library (previously centered on the Round Reading Room)moved to a new site, the British Museum housed both a national museum of antiquities and a national library in the same building. The museum is a non-departmental public body sponsored by the Department for Culture, Media and Sport. Since 2002 the director of the museum has been Neil MacGregor. Admission and opening hours: The museum is open every day from 10am to 6pm (Fridays 10am to 5:30pm)and it charges no admission fee, except for loan exhibitions. How to get there: By train: 7:00-18:30 every day.     By Underground: 8:00-18:30 every day.     By bus: 7:30-18:30 every day.     By coach: 7:00--19:30 every day.     Nearest underground stations:     Tottenham Court Road (500m)     Holborn (500m)     Russell Square (800m) Question: You are at the Museum at seven in the evening and you want to go back to Oxford. Which means of transportation will you choose? - By coach. - By bus. - By train. - By underground.

Ans:By coach.
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Ques:Read the following article and select the best answer. Article: The federal government is about to make a huge investment in high school. As part of the American Recovery and Reinvestment Act, Congress has put aside more than $100 billion, including a competitive "Race to the Top" fund that encourages innovation in public schools. But the real revolution, hidden in the Race to the Top guidelines released by the Department of Education last month, is that high school has a new mission. No longer is it enough just for senior graduate students, or even prepare them for college. Schools must now show how they increase both college enrollment and the number of students who complete at least a year of college. In other words, high schools must now focus on grade 13. Some states, school districts and nonprofit educational organizations have begun to gather data about how freshmen get along in college after graduation, but they haven't made fast progress. Florida has one of the best systems, but even it can't explain a high school graduate who enrolls in college in another state. The nation is asking principals to deliver students who can succeed in college, without ensuring they know whether what they're doing is working. The Department of Education has begun to solve this problem by instructing states on how to keep good records of its graduates' progress in college. This gives high schools the two pieces of information they most need: their college enrollment rate and "college proficiency" rate (the speed with which graduates complete a year of college-level coursework). Race to the Top has finally established a realistic purpose for high school in the 21st century. If principals can now get the support they need to fulfill that purpose, high schools can once again be top producers of American potential . Question: Why does the Congress set up the "Race to the Top" fund? - Because the Congress wants to keep it in case of emergency. - Because the Congress wants to use it to support the poor students. - Because the Congress wants to encourage the students to create something. - Because the Congress wants to keep it for election.

Ans:

assistant: Because the Congress wants to encourage the students to create something.
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