【正确答案】正确答案： Our National Treasure: Tourism Tourism has become a popular global leisure activity. In 2011, there were over 983 million international tourist arrivals worldwide, representing the recovery from the losses resulting from the late-2000s recession. Therefore, with the flourishing tourists all around the world, tourism has become important, and in some cases, vital for many countries. As a matter of fact, tourism, as one of the national treasures, can never be overestimated as regards its advantages. As for regional areas, once becoming one of the most popular and well-known tourist destinations, it will attract increasingly more investments into both environment and infrastructure, which in turn will contribute to the attraction of further tourists and the improvement of tourist facilities. Besides, by developing tourism, it will, to a large extent, create more job opportunities for local people in the service sector and help to decrease the unemployment rate and increase local income, which can raise the overall prestige of the area. At the same time, with the booming tourism industry, the multiplier effects like other businesses may also usher a new period of prosperity, with the virtuous circle formed in the region. In addition, tourism, on the national scale, will always serve as the window for foreigners to get acquainted with its customs and culture. Profitable and rewarding as tourism is, we should by no means neglect the possible negative effects it may bring. Hence, for the further development of tourism, sustainable tourism, or ecotourism should be envisaged as to the management of all resources, which means tourism should coordinate its economic and growth policies. Only in this way can we mitigate some of the negative economic and social impacts and only in this way can we achieve further progress in national tourism.