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Read the article and select the best answer. Article: As we look back at 2007, there are some faces we cannot forget. Here we present three such people as we wave goodbye to 2007. Wang Baoqiang The lead actor of the 28-episode TV drama "Soldiers Sortie," Wang Baoqiang is the TV star with the highest attention in newspapers and magazines. Acting Xu Sanduo, a simple-minded country boy who wins the respect and confidence of his comrades, Wang moved the audience with his tenacity , a rare quality in our times. Yu Dan Studying ancient texts suddenly became popular in modern-day China following the publication of "Yu Dan's Reflections on The Analects," by Yu Dan, a professor at Beijing Normal University, in December 2006. Since then, it has sold 6 million legal copies. Yu is followed by reporters and surrounded at appearances around the nation -- 60,000 people showed up for one Beijing book signing in March. In July, she was selected as one of China's three most beautiful women. Tang Wei Chinese actress Tang Wei finally became famous at the age of 27, after playing in Ang Lee's latest film "Lust, Caution." For many Chinese actresses, being cast by Lee is a ticket to Hollywood. Zhang Ziyi is a good example, having starred in Ang's "Crouching tiger, Hidden Dragon." Tang Wei had waited a long time for her chance and, when it came, she caught it. 2007 was meaningful for her. Question: After Wang Baoqiang starred "Soldiers Sortie", he _ . Options: A: became famous B: liked newspapers C: became tenacious D: was relaxed
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A

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Read the article and select the best answer. Article: Faces that activate the same regions of the brain again and again are more likely to be remtembered. Practice makes perfect when it comes to remembering things, but exactly how that works has long been a mystery. A study published in Science recently indicates that reactivating neural patterns over and over again my store items into the memory. People find it easier to recall things if material is presented repeatedly at well-spaced intervals rather than all at once. For example, you're more likely to remember a face that your've seen on some occasions over a few days than one that you've seen once in one long period. One reason that a face linked to many different contexts -such as school, work and home- is easier to recognize than one that is associated with just one setting, such as a party, could be that there are some ways to access the memory. This idea, called the encoding variability hypothesis ,was proposed by psychologists about 40 years ago. Each different context or setting activates a clear set of brain regions; the hypothesis suggests that it is these differing neural responses that improve the memory. But neuroimaging research led by Russell Poldrack, a scientist at the University of Texas. Austin, now suggests that the opposite is true--items are better remembered when they activate the same neural patterns with each exposure. Poldrack's team measured brain activity in 24 people using functional magnetic resonance imaging. The subjects saw 120 unfamiliar faces, and each one repeated four times at varying intervals during the scan. One hour later, they were shown the faces again, mixed with 120 new ones, and asked to rate the familiarity of each. The researchers then looked at the brain responses that had been recorded when the subjects wee first shown the faces, focusing on 20 brain regions associated with visual perception and memory. Face that were later recognized evoked similar activation patterns at each repetition in nine of the regions, particularly those associated... Question: The passage is mainly about _ . Options: A: how the brain works B: why some memories fade away C: the encoding variability hypothesis D: the neuroimaging research
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D

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Read the article and select the best answer. Article: Barbara and Barry Zucker - Pinchoff, both doctors from New York City, took their three daughters on a walking safari last year in Tanzania. Barbara told about their experience in Kinbero, "It is the most remote place we have ever been to," camping with a few other Americans, two Tanzanian guides, and several Hadza who had time to sit and chat because they had just killed a giraffe. About 400 members of the Eastern Hadza tribe live in Tanzania today, the only hunter-gatherers who remain in Africa. The Hadza hunt game, gather edible plants and honey, and move from place to place whenever the weather changers. Every two weeks or so, they move to a new campsite. At the Pinchoffs' campsite, three Hadza men stopped by to visit and ended up staying three days. One of the guides gave the men a cigarette. They took out the tobacco, put it in a pipe, and lit the pipe with fire they started. It takes less than two hours for Hadza women to build a new camp. They make huts by bending branches into round structures about six feet high, and then covering them with long, golden grass. If the weather is very wet, the women may choose a dry cave to set up a camp. Some rock caves have been used over thousands of years and are decorated with ancient rock paintings. Whether they sleep in huts, caves or in the open, the Hadza cover themselves only with thin cloths and depend on fire to keep them warm. The Hadza refuse to be "settled" into villages or to have the life of farmers. By 1979, almost all of them had returned to their old ways. They Hadza may be the only tribe in Africa the has never paid taxes. Question: Where do the Hadza live in wet weather? Options: A: On the farm. B: In huts. C: In caves. D: In the open.
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C