[单项选择]Tourism, （）, has the potential to help bridge the psychological and cultural distances that separate people of diverse races, colors, religions and stages of social and economic development.
A. proper design and develop
B. properly designing and developing
C. proper designing and developing
D. properly designed and developed

[填空题]
Rumor has it that a legendary (传说的) six-headed monster lurks in the deep waters of the Tyrrhenian Sea between Italy and the island of Sicily. (46) When completed in 2010, the world’s longest bridge will weigh nearly 300,000 tons, equivalent to the iceberg that sank the Titanic, and stretch 5 kilometers long. "That’s nearly 50 percent longer than any other bridge ever built, "says structural engineer Shane Rixon.
(47) They’ re suspension bridges, massive structures built to span vast water channels or gorges (峡谷). A suspension bridge needs just two towers to shoulder the structure’s mammoth (巨大的) weight, thanks to hefty (高强度的) supporting cables slung between the towers and anchored firmly in deep pools of cement at each end of the bridge. The Messina Strait Bridge will have two 54,100-ton towers, which will support most of the bridge’s load. The beefy (结实的) cables of the bridge, eac

[填空题]
Rumor has it that a legendary (传说的) six-headed monster lurks in the deep waters of the Tyrrhenian Sea between Italy and the island of Sicily. (46) When completed in 2010, the world’s longest bridge will weigh nearly 300,000 tons, equivalent to the iceberg that sank the Titanic, and stretch 5 kilometers long. "That’s nearly 50 percent longer than any other bridge ever built, "says structural engineer Shane Rixon.
(47) They’ re suspension bridges, massive structures built to span vast water channels or gorges (峡谷). A suspension bridge needs just two towers to shoulder the structure’s mammoth (巨大的) weight, thanks to hefty (高强度的) supporting cables slung between the towers and anchored firmly in deep pools of cement at each end of the bridge. The Messina Strait Bridge will have two 54,100-ton towers, which will support most of the bridge’s load. The beefy (结实的) cables of the bridge, each 1.2 me

[填空题]The Golden Gate Bridge has six

[简答题]The saddest aspect of mass tourism has been brought recently to the attention of the public: it seems that the great number of visitors is destroying the treasures that they enjoy most. Under millions of feet, ancient stones wear out, ancient floors break down. Parts of the palace of Versailles may have to be closed to the public in order to preserve them, and some European caves, famous for their thirty-thousand-year-old paintings, have already been closed because the paintings were damaged by human respiration. There may come a time when only specialists in art, history, or archaeology will be allowed near the treasures of the past. Perhaps we’d better hurry to see them; perhaps we’d better take a tour soon.

[填空题]We all have tremendous potential. Each of us has the ability to put our unique human potential into action and to acquire a (36) result. But the one thing that determines the level of our potential, that produces the (37) of our activity, and that (38) the quality of the result we receive is our attitude.
Attitude determines how much of the future we are allowed to see. It decides the size of our dreams and influences our (39) when we are faced with new challenges. No other person on earth has (40) over our attitude. People can affect our attitude by teaching us poor thinking habits or (41) misinforming us or providing us with negative sources of influence, but no one can control our attitude unless we voluntarily (42) that control.
If we care at all about ourselves,we must accept full responsibility for our own feelings. We must learn to (43) against those feelings that have the capac