（1）语法填空
Started at the height of the economic boom and built by some 12,000 laborers, the world's tallest building opened on January 4, 2010 in Dubai. ___1___ $1.5-billion tower reaches up 828 meters, 200 storeys into the sky. It surpasses the next highest building, Taiwan's Taipei 101, ___2___ more than 300 meters.
Burj Dubai, whose opening ___3___(delay) twice since construction began in 2004, will mark another milestone for the deeply indebted emirate（酋长国）.
Dubai, one of seven members of the United Arab Emirates, gained a reputation for excess with the creation of man-made islands ___4___(shape) like palms and an indoor ski slope in the desert.
With investor confidence in Dubai ___5___(bad) frustrated by the emirate's announcement in November ___6___ it would seek a debt standstill for one of its largest enterprises, the Burj Dubai is seen ___7___ a positive start.
The project has been examined carefully by human rights groups, who have objected to its ___8___(treat) of laborers, as well as by environmentalists ___9___ said the tower would act as a power vacuum, increasing the city's already massive carbon footprint.
But despite the criticism, many say the tallest building, believed ___10___(cost) $1.5 billion to build, is an architectural miracles.