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Read the article and select the best answer. Article: This year some twenty-three hundred teenagers (young people aged from 13 to 19) from all over the world will spend about ten months in US homes. They will attend US schools, meet US teenagers, and form impressions of the real America. At the same time, about thirteen hundred American teenagers will go to other countries to learn new languages and gain a new understanding of the rest of the world. Here is a two-way student exchange in action. Fred, nineteen, spent last year in Germany with George's family. In turn, George's son Mike spent a year in Fred's home in America. Fred, a lively young man, knew little German when he arrived, but after two months' study, the language began to come to him. Schools were completely different from what he had expected--much harder. Students rose respectfully when the teacher entered the room. They took fourteen subjects instead of the six that are usual in the United States. There were almost no outside activities. Family life, too, was different. The father's word was law, and all activities were around the family rather than the individual . Fred found the food too simple at first. Also, he missed having a car. "Back home, you pick up some friends in a car and go out and have a good time. In Germany, you walk, but you soon learn to like it." At the same time, In America, Mike, a friendly German boy, was also forming his idea."I suppose I should criticize American schools," he says. "It is far too easy by our level. But I have to say that I like it very much. In Germany we do nothing but study. Here we take part in many outside activities. I think that maybe your schools are better in training for citizens . There ought to be some middle ground between the two. Question: What is special in American schools is that _ . Options: A: there is some middle ground between the two teaching buildings B: students go outside to enjoy themselves in a car C: students usually take fourteen subjects in all D: there are a lot of after-school activities
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D

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Read the article and select the best answer. Article: Many of us know that fast food is not good for us: it makes us fat and has twice the amount of salt an adult should eat. Moreover, you may not be aware that fast food may have a subliminal effect on behavior, making people impatient even when they are not short of time, according to a new study published in the journal Psychological Science. "The unconscious goal of saving time embedded in fast food may have the unexpected consequence of inducing haste and impatience," the researchers claim. More strikingly, they found that the mere exposure to fast food symbols "reduced people's willingness to save and led them to prefer immediate gain over greater future return". In the study, student volunteers were shown in rapid succession logos from fast-food chains including McDonald's, Burger King, KFC and Subway. Participants preferred time-saving products like three-in-one skincare treatments rather than separate versions after seeing the logos. When asked whether they would accept a small sum of money immediately or a larger amount in a week's time, they again chose an instant reward after being exposed to the brands. "Fast food represents a culture of time efficiency and instant gratification ," said researcher Sanford DeVoe, professor of organizational behavior at Canada's Toronto University. "It is promoting a general sense of haste whether time is a relevant factor in the context or not." Question: The point of the article is to _ . Options: A: tell readers that fast food can heighten their awareness of time efficiency B: report the findings of new research into fast food C: analyze the bad effects fast food can have on physical health D: advise readers not to eat fast food
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B

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Read the article and select the best answer. Article: We all know that theme parks are places to have fun and amuse ourselves, but among so many exciting rides there are also some dangers, Make sure you know what the safety standards are for all the attractions at the park. If you do that , you will be safe and have fun. Drink water. Believe it or not , dehydration-- when your body doesn't have enough water--is the commonest cause of injuries at theme parks. Drinking water while you are at the park is not enough.You must make sure that you drink enough water before your visit. Use your "common sense". There are lots of people around , so make sure where your friends or family are .Also ,if you are walking and want to stop , make sure nobody is walking behind you. First step aside,then look behind and if you aren't in anybody's way,then stop.It might sound exaggerated ,but crashes between people can cause accidents. Follow the instructions. The majority of theme parks have instructions for each ride. Some rides only allow people of a certain height. So make sure you are not too tall or too short before boarding any ride. Also, people with certain diseases or conditions are advised not to go on some rides. Do remember : If you are told not to go on a ride, then DON'T. Do not ride with a bad atomach or if you've just eaten. Rides can make you ill because of their violent changes of direction and your lunch may end up on someone else's head: surely not a very pleasant experience. Have fun, relax, and be a little brave! Some rides might look scary but theme parks are very safe places. Question: What is the leading reason for injuries at theme parks? Options: A: Snow B: Dehydration C: Fire D: Crashes
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B