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  3. Many mobile operators already offer a selection of television channels or individual shows, which are sent (1)_____ across their

Many mobile operators already offer a selection of television channels or individual shows, which are sent (1)_____ across their

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问题     Many mobile operators already offer a selection of television channels or individual shows, which are sent (1)_____ across their third-generation (3G) networks. In South Korea, television is also sent to mobile phones via satellite and terrestrial broadcast networks, which is far more (2)_____ than sending video across mobile networks; similar broadcasts will begin in Japan in April. Similar mobile-TV networks will also be built in Finland and America, and are being (3)_____ in many other countries.
    Meanwhile, Apple Computer, which (4)_____ a video-capable version of its iPod portable music player in this October, is (5)_____ a bargain with television networks to expand the (6)_____ of shows that can be purchased (7)_____ viewing on the device. And mobile TV was one of the big (8)_____ at the world’s largest technology fair, the Consumer Electronic Show.
    (9)_____ all this activity, however, the (10)_____ for mobile TV are unclear. For a start, nobody (11)_____ knows if consumers will pay for it, though surveys suggest they like the idea. One (12)_____ agency of the field, says there will be 125m mobile-TV users by 2010, but many other mobile technologies inspired high hopes and then failed to (13)_____ up to expectations. And (14)_____ people do want TV on the move, there is (15)_____ uncertainty in three areas: technology, business models and the (16)_____ itself.
    The (17)_____ for mobile TV is vast, in short, but (18)_____ is the degree of uncertainty over how it should actually be put into practice. Most observers do not expect widespread (19)_____ of mobile TV, if it comes at all, until 2008 at the earliest, since building the required ecosystem of technology, partnerships and content will (20)_____ some time.

选项 A、current
B、tendency
C、drift
D、trends
答案D
解析 词汇辨析题。文章前两段列举了各国许多手机运营商通过3G网络传输方式提供可供选择的电视频道或个性化节目，这就表明手机电视已成为全球的潮流和发展趋势，因此选trend，意为"倾向，趋势"，经常指普遍的或流行的方向，尤指在某一特定领域的流行趋势。current暗示路线或流动，如思想观点的，尤指特定时间或地点的典型代表，如：These words express the whole current of modern feeling．这些词表达了现代情感的整体潮流。tendency"趋向，倾向"，暗含着以某一特定方式进行的倾向，如：The tendency of our own day is towards firm，solid，verifiable knowledge．我们今天的趋势是朝向一种坚定、稳定且可证明的知识发展的。drift"倾向"指其方向或路线依赖于一种如水流或潮流般的推动力，如：Political conservatives fear a drift toward communism in Latin America.政治保守派们对拉丁美洲的共产主义倾向感到恐惧。
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