【文章內(nèi)容簡介】 band（光纖寬帶）direct to their home, suggests a survey. The latest __29__ on super fast broadband delivered by fiber to the home (FTTH) show 18% growth over the last survey piled in late 2008.The continued growth suggests that the __30__ economic decline has not hit plans to build fiber networks. Sweden __31__ the list of nations applying the technology, with % of its broadband customers using fiber. Karel Helsen, president of Europe’s FiberToTheHome Council, said the growth matched predictions that were __32__ when the credit crisis started to make itself felt. “The numbers in 2009 are in line with the latest forecasts,” said Mr. Helsen.By 2012, the FTTH Council expects that 13 million people across 35 European nations will have their broadband delivered by fiber. Such services would start at a speed of 100 megabits per second (mbps), said Mr. Helsen. Around Europe more than 233 projects were underway to lay the fibers that would __33__ homes or buildings to the net, said Mr. Helsen. Many of those, he said, were being operated by local governments or smaller net firms. Local governments were interested in FTTH because of the economic and social __34__ it brought in its wake, said Mr. Helsen.The low delay in highspeed fiber networks made __35__ new uses of broadband, he said. “No delay is very important,” he said, “specifically if you talk about __36__ that are timedependent such as personal munications, conference calls or video calls where delays cause a lot of trouble.” While early FTTH services were __37__ in cities, said Mr. Helsen, many more were reaching out to rural areas for ehealth and elearning projects. Keys。 EHJCF GBDAB Ancient Greek philosopher Aristotle viewed laughter as a bodily exercise precious to health. Laughter does _37_____ shortterm changes in cardiovascular(心血管的) function and respiration, boosting heart rate, respiratory rate and depth, as well as oxygen consumption. But because hard laughter is difficult to last, a good guffaw(loud laugh) is unlikely to have _38 ____cardiovascular benefits the way walking or jogging does. _39_____, instead of building up muscles, as exercise does, laughter apparently acplishes the _40______. Studies _41_____ back to the 1930s indicate that laughter relaxes muscles, decreasing muscle tone(肌肉緊張度) for up to 45 minutes after the guffaw subsides. Such physical relaxation might help _42_____ psychological stress. After all, the act of laughing probably does produce other types of physical feedback that _43_____ an individual39。s emotional state. In an experiment published in 1988, social psychologist Fritz Strack in Germany and his colleagues asked volunteers to hold a pen either with their teeththereby creating an artificial smileor with their lips, which would produce a disappointed_____44_____. Those forced to exercise their smiling muscles _45_____ more energetically to funny cartoons than those whose mouths were contracted in a frown(皺眉)did, suggesting that expressions may influence _46_ rather than just the other way around. ( )37. A. reflect ()38. A. measurable ( )39. A. In turn ( )40. A. opposite ( )41. A. dating. ( )42. A. cause( )43. A. improve( )44. A. emotion ( )45. A. adapted ( )46. A. emotionsB. demand B. manageable B. In fact B. possibility B. datedB. lead B. decrease B. mood B. adjust B. motionsC. indicate C. affordableC. In addition C. average C. to dateC. relieve C. relax C. smile C. turned C. movementD. produceD. sensibleD. In brief D. same D. dateD. produceD. increase D. expressionD. reactedD. motive3746 D A B A A C A D D ACIf English means endless new words, difficult grammar and sometimes strange pronunciation, you are wrong. Haven’t you noticed that you have bee smarter since you started to learn a language?According to a new study by a British university, learning a second language can lead to an increase in your brain power. Researchers found that learning other languages changes grey matter. This is the area of the brain which processes information. It is similar to the way that exercise builds muscles.The study also found the effect is greater, the younger people learn a second language.A team led by Dr. Andrea Mechelli, from University College London, took a group of Britons who only spoke English. They were pared with a group of “early bilinguals” who had learnt a second language before the age of five, as well as a number of later learners.Scans showed that grey matter density(密度)in the brain was greater in bilinguals than in people without a second language. But the longer a person waited before mastering a new language, the smaller the difference.“Our findings suggest that the structure of the brain is changed by the experience of learning a second language,” said the scientists.It means that the change itself increases the ability to learn.Professor Dylan Vaughan Jones of the University of Wales, has researched the link between bilingualism and maths skills. “Having two languages gives you two windows on the world and makes the brain more flexible(靈活的),”he said. “You are actually going beyond language and have a better understanding of different ideas.”The findings were matched in a study of native Italian speakers who had learned English as a second language between the ages of two and 34. Reading, writing, and prehension were all tested. The results showed that the younger they started to learn, the better. “Studying a language means you get an