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I'm taking a test and have to guess the right answer to the question after the article. Article: What is the relationship between violence and sports? Psychologists say that there are many reasons for violence at sports events. One is alcohol. Many fans drink a lot at games. When people drink, they are more likely to do abnormal things. Psychologist Dennis Brock says, "Quiet people become loud. Normally nonviolent people become destructive. " David Sampson, a sports sociologist, says, "These are often celebratory riots-- a large number of very happy people mixed in with large amounts of alcohol. They don't often seem dangerous in the beginning, but things get violent quickly. " Another reason for violence at sports events is the crowd. When individuals are in a large group of people, they can lose their sense of personal responsibility. Edward Hirt, a social Psychologist, says that research shows that people do things in crowds that they would never do alone. People in crowds feel anonymous -- no one knows who they are. Crowds also make people feel powerful. They stop making personal decisions. They just follow the crowd. Social psychologists call this a "mob mentality." Dave Zarifis, head of public safety says, "Some people don't even come to celebrate. They want to drink hard and make trouble. Someone does something stupid, and it grows from there. You get a mob mentality. People think it's OK to do almost anything. They think, 'There are so many of us and not enough of them. ' " Social psychologist Dr. Sharon Kennedy says that there are some things officials can do to prevent violence. Making sure that an area is not overcrowded is very important. Officials should also think of games as "big parties." Then they will prepare differently. Kennedy says that in Great Britain they are controlling the problem with cameras in all the stadiums. "When you know someone is watching, you are much less likely to behave badly. " Question: How many experts are quoted by the writer of this passage? Options: A: Two. B: Four. C: Three. D: Five.
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D

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I'm taking a test and have to guess the right answer to the question after the article. Article: Hong Kong, a city of seven million--and growing fast. By the year 2050 Hong Kong's population will almost double. Where will these people live? There's only one place to go--up. Fast forward 50 years.This is the tallest man-made structure on the planet. Its name:Millennium Tower. It would stand twice as tall as anything built before. Over 60 thousand people would live or work here. Millennium's designers think it represents the best solution for the coming population explosion. It would cost ten billion dollars and consume more building materials than any single nation could produce. David Nelson, one of Millennium's key designers, said:"It would be a massive project and a world project. But to actually realize it, resources would have to come from all over the globe. The challenge and the motivation for doing it would be to realize one of the world's largest and most complex construction projects." Millennium would be more complex than anything ever built. So its builders won't know for sure the building is safe until it's up, and they can't afford to make an error. Massive earthquakes have brought down entire cities in this part of the world. Can Millennium's designers make it immune to these quakes of the earth? For Millennium, like all the other buildings, safety is just one concern among many. It will need to be a home, one that welcomes people in. Getting people into the building and making sure they have a great experience well be what makes Millennium successful, but how to do it? For the design team, the secret was to bring all the elements of city life within. Cafes and restaurants, theatres and stores would provide entertainment. Health clubs, even schools and medical clinics would also serve the towers' residents. Millennium's designers have proven something. Things that seem impossible today, might just become reality tomorrow. The engineering problems have, for the most part, already been solved. Our achievements are limited only by our imaginations. Question: The success of Millennium mainly relies on _ . Options: A: how many resources will be used B: how many nations will work together C: whether people can enjoy their life in it D: whether it is safe for people to live in
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C

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I'm taking a test and have to guess the right answer to the question after the article. Article: BEIJING, Jan. 11(Xinhuanet)-- Sleeping a little bit longer a day might help fight against obesity , a recent study shows. The research-- published in the Archives of Internal Medicine along with an editorial by Turek and Northwestern colleague Joseph Bass commenting on it and related research-- after comparing people of normal weight- a body mass index of less than 25- with those who were overweight or _ , found that sleeping for an extra 20 minutes each night could offer a pain-free way to lose weight. Insufficient sleep is linked with changes in hormone levels that may stimulate appetite. A series of studies in recent months have shown that the less people sleep, the heavier they tend to be. American researcher Robert Vorona from Eastern Virginia Medical School in Norfolk and colleagues have now examined the relationship between people's self-reported sleep time per 24 hours and their body mass index(BMI). They found that total sleep time and BMI were inversely correlated was total sleep time decreased, BMI increased, except in the severely obese group." Americans experience insufficient sleep and corpulent bodies. Clinicians are aware of the burden of obesity on patients," the study said. "Our findings suggest that major extensions of sleep time may not be necessary, as an extra 20 minutes of sleep per night seems to be associated with a lower body mass index," it added. "We warn that this study does not establish a cause-and-effect relationship between restricted sleep and obesity (but) investigations demonstrating success in weight loss via extensions of sleep would help greatly to establish such a relationship." In November 2004, researchers from Columbia University in New York City, New York demonstrated a clear link between the risk of being obese and hours of nightly sleep, finding that people aged 32 to 59 who slept four hours or less per night were 73% more likely to be obese than people who slept between seven and nine hours per night. Question: According to the text , the author intends to tell us that _ . Options: A: Sleeping a little bit longer a day might help fight against obesity B: insufficient sleep is linked with changes in hormone lives C: there exists a clear link between the risk of being obeses and hours of nightly sleep D: the less people sleep , the heavier they tend to be
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A