Unit 2　Cloning

　　(60分钟81分)

　　Part A

　　一、阅读理解(共8小题;每小题2分,满分16分)

　　A

　　When Jeff Sparkman draws his cartoon superheroes with colored pencils,he often has to ask other people to tell him what color his masked men turned out to be because he’s color-blind.Now,a new smart phone application(app) can help him figure out what colors he’s using and how the picture looks to most everyone else.

　　The DanKam app,available for iPhone and Android for $2.99,is an application that turns the vague colors that one percent of the population with color-blindness sees into the “true” colors as everyone else sees them.In America,an estimated 32 million color-blind Americans—95% are males—can soon have their life improved.

　　“DanKam takes the stream of data coming in through the phone’s camera and changes the colors slightly so they fall within the range that people who are color-blind see,” developer Dan Kaminsky told CNET.He came up with the idea after watching the 2009 film Star Trek with a color-blind friend.

　　It was then that he got to know more about colorblindness like its varying types and degrees.A vast majority,for instance,have trouble seeing red or green due to a genetic defect(遗传缺陷).Blue-yellow colorblindness,however,is rarer and develops later in life because of aging,illness or head injuries,etc.He started experimenting with one of the most common representations of points in the RGB color model.What the DanKam app attempts to do is to clean up the color space of the image or video signal so that colors can be visible to those suffering from viewing problems.“You can adjust the app to fit your needs.There is a range and not everyone who is color-blind sees things the same.” Says Kaminsky.

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