I'm taking a test and have to guess the right answer to the question after the article. Article: If you look at the night sky, you'll often see stars moving very quickly. In fact, they move much more quickly than they should according to their size and the laws of physics. Scientists do not completely understand why the speed of these stars is so high. But many believe the reason is that much of the universe is made of something called "dark matter". Groups of stars called galaxies, such as the Milky Way, might even be made up of 90 percent dark matter. How much something weighs depends on where it is. The same object weighs only half as much on Mars as it does on Earth and almost three times as much on Jupiter. So scientists prefer to talk about the mass of something rather than how much it weighs, because mass does not change. They can work out the mass of galaxies by measuring the distance between them and the speed they move at. Recently, Jorge Penarrubia, a senior academic at Edinburgh University, UK, and his team discovered something interesting: The mass of the Milky Way is only half as much as the mass of another nearby galaxy, Andromeda. This seems strange, and dark matter may explain why. Finding out more about dark matter could help us understand how the universe began, but this is not easy. Lots of scientists with different types of expert knowledge are working on the problem. We can't see dark matter, it's very difficult to measure and we can't find out its mass. Unlike stars, dark matter doesn't produce or reflect light. But we can make a good guess that it is there because of the way things move and the way light bends. Experts now think dark matter may be very different from the matter that we find on Earth. There may also be five times as much dark matter in the universe as ordinary matter. Question: According to the text, dark matter _ . Options: A: could accelerate the speed of stars B: could lessen the mass of objects in galaxies C: makes up the entire universe and its stars D: may help us identify the origins of the universe
D
I'm taking a test and have to guess the right answer to the question after the article. Article: Nowadays many people have to work very hard in order to live a better life. And the hard they work, the less they pay attention to their health. But it's very important for us to keep healthy in our everyday life. Here are some ways for you to follow. First, you should have a healthy diet. It's necessary to eat enough fish and vegetables, as they contain many kinds of vitamin you need every day. Do not eat too much fat, such as butter or anything too fatty. Too many sweets can do harm to your teeth, so you'd better not eat too many sweets or chocolates and keep off coffee. Second, good habits can help you keep fit. Doing regular exercise is certainly a good way to ensure that your body is healthy. After a day's work, an eight-hour sleep is needed. And avoid working or studying too hard. Question: Eating too many _ can do harm to your teeth. Options: A: fish B: vegetables C: sweets D: carrots
C
Q: I'm taking a test and have to guess the right answer to the question after the article. Article: Paris Passengers carried per day: 4.4m Cost of ticket: 80p flat fare Length: 131 miles Lines: 14 Stations: 297 In Paris there are pleasures for those who use the Metro -- many of them artistic. The graceful Art Nouveau dragon-fly entrances are just the most noticeable on a Metro system which celebrated its 100thanniversary by spending 30 million francs (PS2.9million) on making its stations works of art. On my way home I pass Bonne Nouvelle station in the heart of Paris's cinema district. There, during the cinema festival this summer, special lighting effects dot the platforms and films are projected onto the large advertising boards. More than anything the metro is efficient. "When I worked on line 4", says a retired driver, "we had exactly 30 minutes and 15 seconds to complete the journey. If it took any longer, they cut our pay." But there are problems. Many Metro stations have too many stairs, and changing lines at big interchanges can be tiresome. Moscow Passengers carried per day: 9m Cost of ticket: 12p Length: 164 miles Lines: 11 Stations: 162 The first underground passage for the Moscow Metropolitan started in 1932. Three years later the trains started running. They haven't stopped since-- every 90 seconds or two minutes during rush hour, every five minutes the rest of the time, from 6 a.m. till 1 a. m. There may be a crowd of people but there is seldom a wait. The trains take you through spacious and spotless stations. For tourists it's a major sightseeing attraction: from Russian Art Deco to neo-classical, the Metro stations are not to be missed. Tokyo Passengers carried per day: 7m Cost of ticket: 90p ~ PS1.68 Length: 177 miles Lines: 12 Stations: 209 Trains do not just arrive on time in Tokyo. They stop right on the platform mark so that passengers can line up knowing exactly where the doors will open. Train driving is a respectful job for life, for which the applicants must pass a strict screening of health checks, interviews and written exams before they can put on the enviable... Question: Metro rail drivers in Paris must _ . Options: A: keep to the train schedule strictly B: complete the journey gracefully C: stop right on the platform mark D: understand the special lighting
A: A
(Question)
I'm taking a test and have to guess the right answer to the question after the article. Article: Hong Kong Bans Smoking Do you plan to go to Hong Kong Disneyland with your family? If your dad smokes, you must ask him to be careful. 71. _ The new law went into effect on Monday, and heavy fines will be imposed on anyone who breaks it. The places include restaurants, workplaces, schools and karaoke rooms. 72. _ Public response has been mixed. Smoking is now banned in public spaces in Hong Kong. Many Hong Kong residents are in favor of the new regulation, however. Hong Kong hopes the ban can prevent passive smoking. 73. _ And it'll be better if more people in Hong Kong give up smoking because of the ban. Hong Kong has 7 million people. 74. _ Amy Choi, 27, a student, agrees to the smoking ban. ' I don't like people smoking next to me. It's so smoky and smelly," she said. Warning signs are now clearly visible in most public places such as beaches, stadiums, parks, and playgrounds. Some owners of bars and restaurants say that although the new ban may have negative effect on their business, they will still stop their customers from lighting up. If someone breaks the ban, he will have to pay up to HK$5,000. Question: On January 1,2006, Singapore banned smoking in most public places. Options: A: Hong Kong is not the first Asian city to have a smoking ban. B: When you stay with a smoking person, you will feel light-hearted. C: From January 1,2007, Hong Kong bans smoking in most public places. D: Even smoking in some outdoor places like beaches, sports grounds, museums and parks is against the law. E.Among them, about 840,000 people aged 15 or above are smokers. F.It does great harm to people's health. G.You can smoke anywhere except Hong Kong in 2008.
(Answer)
C