2. 外语
  3. Until modem times, a trip was often a long and difficult【B1】______ . Traveling by horse or camel or on foot was slow and often【B

Until modem times, a trip was often a long and difficult【B1】______ . Traveling by horse or camel or on foot was slow and often【B

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问题     Until modem times, a trip was often a long and difficult【B1】______ . Traveling by horse or camel or on foot was slow and often【B2】______ . The roads were usually unpaved and often【B3】______ .
    Accommodations along the way【B4】______ provided nothing more than a roof and a place to cook one’s own food. Traveling by water was【B5】______ a little easier, but ships were slow and they had to try to avoid storms at sea.
    The first development in modem【B6】______ was the steamship, which could sail【B7】______ the wind. Then came the rail roads. They were able to carry large numbers of people quickly over long【B8】______ for low fares.【B9】______ . A trip across the ocean that would have taken weeks only a hundred years ago now takes just a few hours.【B10】______ . At first, hotels were built near railroad stations in big cities. Then seaside areas that were served by railroad became the first popular resorts.【B11】______ . Hotels have sprung up along tropical beaches or in mountain areas where people can get away from crowded cities.
【B4】
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