职称英语考试理工类阅读理解的练习及答案(5)

　　The Race into Space 　　American millionaire Dennis Tito will always be famous.He was the first tourist in space.I spent sixty years on Earth and eight days in space and from my viewpoint， it was two separate lives，Tito explained.He loved his time in space.Being in space and looking back at earth is one of the most rewarding experiences a human being can have. 　　On 30 April 2002，Mark Shuttleworth became the worlds second space tourist.Shuttleworth is a South African businessman.At the age of twenty-eight.he also paid $ 20 million for the eightday trip. 　　Many of the customdrs are people who like adventure.They are the kind of people who also want to climb Mount Qomolangma.Other customers are people who love space.However，these people are worried.Because its so expensive,only very rich people can go into space.They want space travel to be available to more people. 　　However，space flight is still very dangerous.Bill Readdy is NASAs deputy assistant administrator for space flight.He says that the chances of dying are about 1 in 500.Because of this it may take time before space tourism really takes off.You might be able to go up，but will you come down?