2. 考研
  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、as if
B、even if
C、if only
D、if
答案B
解析 逻辑衔接题。本句应为主从复合句，主句提到uncertainty in three areas，即在三个方面存在着不确定性，从句的大意是：人们确实想看移动电视，可以判断主从句有相反的意思，even if表示"即使"，引导让步状语从句，符合句意。as if意为"似乎，仿佛"，例：She looked as if she were made of ice．她看起来似乎是冰做的。if only"只要"，如：if only I got invited, I would be glad to go.只要我被邀请，我一定会去。if"如果，倘若"，引导条件状语从句，如：If I were to go，I would be late．倘若我去，就要迟到。
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