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找不到好的英语六级听力练习材料?绝对是你的不二选择。大家平时多用英语磨耳朵，时间长了英语六级听力绝对会有很大的提高。 英语六级听力练习：标准4.9 点击收听 LOS ANGELESWhen you watch a movie these days, its difficult to tell whats real and whats created in a computer. In the future, visual effects could even alter how movies are made. Almost anything that can be imagined by a director can now become reality in the world of movies. Were really not limited by the technology to build pretty much anything we want, said David Smith, of Sony Pictures Imageworks. Smith said that with todays computer processing power and speed, the digital world is more realistic than ever before. For The Amazing Spider-Man 2, Smiths team created a Times Square that was indistinguishable from the real one in New York. If theres lights inside the stores that are lighting areas inside the store, we put those lights in there. All the street lights on the street we put versions of that into the computer world so that it mimics the real world exactly, said Smith. But there is still one challenge for visual effects artists, said Paul Debevec of the University of Southern California Institute for Creative Technologies. Were still trying to figure out how to perfect the human face in movies, said Debevec. | 
