2015年职称英语考试《理工类》完形填空题(6)
Giant Structures
It is an impossible task to select the most amazing wonders of the modem world since every year more __1__ constructions appear. Here are three giant structures which are worthy of our __2__ although they may have been surpassed by some more recent wonders.
The Petronas Twin Towers
The Petronas Towers were the tallest buildings in the world when they were completed in 1999. With a __3__ of 452 metres,the tall twin towers,like two thin pencils,dominate the city of Kuala Lumpur. At the 41st floor,the towers are linked by a bridge,symbolizing a gateway to the city. The American __4__ Cesar Pelli designed the skyscrapers.
Constructed of high-strength concrete,the building provides around 1,800 square metres of office space __5__ every floor. And it has a shopping centre and a concert hall at the base. Other __6__ of this impressive building include double-decker lifts,and glass and steel sunshades.
The MiUau Bridge
The Millau Bridge was opened in 2004 in the Tam Valley,in southern France. __7__ the time it was built,it was the world‘s highest bridge,__8__ over 340m at the highest point. The bridge is described as one of the most amazingly beautiful bridges in the world. It was built to __9__ Millau's congestion problems. The congestion was then caused by traffic passing from Paris to Barcelona in Spain. The bridge was built to withstand the __10__ extreme seismic and climatic conditions. Besides,it is guaranteed for 120 years!
The Itaipu Dam
The Itaipu hydroelectric power plant is one of the largest constructions of its kind in the world. It consists of a series of dams across the River Parana,__11__ forms a natural border between Brazil and Paraguay. Started in 1975 and taking 16 years to complete,the construction was carried out as a joint project between the two __12__. The dam is well-known for both its electricity output and its size. In 1995 it produced 78% of Paraguay‘s and 25% of Brazil’s __13__ needs. In its construction,the __14__ of iron and steel used was equivalent to over 300 Eiffel Towers. It is a __15__ amazing wonder of engineering.
词汇：
worthy adj.值得的
surpass v.超过,胜过
symbolize v.象征
congestion n.拥挤
withstand v. 经受住
seismic 地震的
dam n. 堤,坝
hydroelectric adj. 水电的