Any foreigner who has tried to learn Chinese can tell how hard it is to master the tones required to speak and understand.And anyone who has tried to learn to play the violin or other instruments can report similar challenges. Now researchers have found that people with musical training have an easier time learning Chinese.Writing in the online edition of Nature Nenroscieme, researchers from Northwestern University say that both skills draw on the same parts of the brain that help people discover changes in pitch . One of the study's authors, Nina Kraus, said the findings suggested that studying music "actually tunes our sensory system".This means that schools that want children to do well in languages should hesitate before cutting music programs.Dr.Kraus said.She said music training might also help children with language problems. Mandarin speakers have been shown to have a more complex encoding of pitch patterns in their brains than English speakers do.This is because in Mandarin and other Asian languages, pitch plays a central role.A single syllable word can have several meanings depending on how it is _ . For this study, the researchers looked at 20 non Chinese speaking volunteers, half with no musical background and half who have studied an instrument for at least six years. As they were shown a movie, the volunteers also heard an audio tape of the Mandarin word "mi" in three of its meanings: squint, bewilder and rice.The researchers recorded activities in their brain stems to see how well they were processing the sounds.Those with a music background showed much more brain activities in response to the Chinese sounds. The lead author of the study, Patrick C.M.Wong, said it might work both ways.It appear? That native speakers of tonal languages may do better at learning instruments. Why does Chinese learning have something to do with music training? A) Because there is the same difficulty in learning Chinese and music. B) Because skills to learn the two make use of the same parts of the brain. C) Because music training might help people with language study. D) Because people who do well in Chinese study do well in music.
B
(Question)
One of our biggest fears nowadays is that our kids might some day get lost in a "sea of technology"rather than experiencing the natural world.Fear-producing TV and computer games are leading to a serious disconnect between kids and the great outdoors,which will change the wild places of the world,its creatures and human health for the worse,unless adults get working on child's play. Each of us has a place in nature we go sometimes,even if it was torn down.We cannot be the last generation to have that place.At this rate,kids who miss the sense of wonder outdoors will not grow up to be protectors of natural landscapes."If the decline in parks use continues across North America,who will defend parks against encroachment ?"asks Richard Louv,author ofLast Child in the Woods. Without having a nature experience,kids can turn out just fine,but they are missing out a huge enrichment of their lives.That applies to everything from their physical health and mental health,to stress levels,creativity and cognitive skills.Experts predict modern kids will have poorer health than their parents--and they say a lack of outside play is surely part of it:research suggests that kids do better academically in schools with a nature component and that play in nature fosters leadership by the smartest,not by the toughest.Even a tiny outdoor experience can create wonder in a child.The three-year-old turning over his first rock realizes he is not alone in the world.A clump of trees on the roadside can be the whole universe in his eyes.We really need to value that more. Kids are not to blame.They are over-protected and frightened.It is dangerous out there from time to time,but repetitive stress from computers is replacing breaking an arm as a childhood rite of passage. Everyone from developers,to schools and outdoors' citizens,should help regain for our kids some of the freedom and joy of exploring,taking friendship in fields and woods that cement love,respect and need for the landscape.As parents,we should devote some of our energies to... According to the passage,children without experiencing nature will _ . A) keep a high sense of wonder B) be over-protected by their parents C) be less healthy both physically and mentally D) change wild places and creatures for the better
(Answer)
C
Ques:A meteorite flew fast across the sky and exploded over central Russia on Friday, raining fireballs over a vast area and causing a shock wave that smashed windows, damaged buildings and injured l,200 people. People heading to work in Chelyabinsk heard what sounded like an explosion, saw a bright light and then felt the shock wave. According to Russian space agency Roscosmos, the fireball, travelling at a speed of 30km per second, had burnt very brightly across the horizon, leaving a long white trail that could be seen as far as 200km away. Car alarms went off, thousands of windows shattered and mobile phone networks were disrupted. "I was driving to work, it was quite dark, but it suddenly became as bright as if it were day," said Viktor Prokofiev, 36, a resident of Yekaterinburg in the Urals Mountains. "I felt like I was blinded by headlights." The meteorite, which weighed about 20 tons and may have been made of iron, entered Earth's atmosphere and broke apart 30-50km above ground, according to Russia's Academy of Sciences. The energy released when it entered the Earth's atmosphere was about several thousand tons, the academy said, the power of a small atomic weapon exploding. No deaths were reported, but the Emergencies Ministry said 20,000 rescue and clean-up workers were sent to the region after President Vladimir Putin told Emergencies Minister Vladimir Puchkov to ease the disruption and help the victims. The Interior Ministry said about l,200 people had been injured, at least 200 of them children, and most from broken pieces of glass."While events this big are rare, an impact that could cause damage and death could happen every century or so. Unfortunately there is absolutely nothing we can do to stop impacts." It can be inferred that the loss caused by meteorites _ . A) is nearly unavoidable B) happens every few years C) can be avoided D) is hard to estimate

Ans:
A