填空题

Until modem times, a trip was often a long and difficult (36) . Traveling by horse or camel or on foot was slow and often (37) . The roads were usually unpaved and often (38) . Accommodations along the way (39) provided nothing more than a roof and a place to cook one’s own food. Traveling by water was (40) a little easier, but ships were slow and they had to try to avoid storms at sea. The first development in modem (41) was the steamship, which could sail (42) the wind. Then came the rail roads. They were able to carry large numbers of people quickly over long (43) for low fares. (44) . A trip across the ocean that would have taken weeks only a hundred years ago now takes just a few hours. (45) . At first, hotels were built near railroad stations in big cities. Then seaside areas that were served by railroad became the first popular resorts. (46) . Hotels have sprung up along tropical beaches or in mountain areas where people can get away from crowded cities.