简答题：Have you ever been on a long-haul flight? How did you pass t

Have you ever been on a long-haul flight? How did you pass the time?
Perhaps you watched an in-flight movie or read a book. Well, it would have to be a very long book to keep you___26___for 520 days. That's how long six men are going to be___27___from humanity in a warehouse in the___28___of Moscow from tomorrow. No, this isn't another weird reality TV show, but an experiment from the European Space Agency and Russia's Institute of Biomedical Problems to test the psychological___29___of a manned mission to Mars. The six astronauts will live in conditions approximating a real space mission.
A 550-cubic-metre___30___within the warehouse includes an interplanetary spaceship, a Mars lander and aMartian___31___. The group of six will work, relax and sleep in eight-hour___32___, take two days off a week and shower once every ten days. All communication, with mission control will be___33___a 20-minute delay to reproduce the effects of distance. After 250 days, the astronauts will divide into two groups. Three will move to the Martian surface simulator for a month while the rest will remain "in orbit." Then the six wilt be reunited for a 240-day return journey to the outside world.
Throughout, the organizers of the project will use cameras to___34___everything that happens "on board."They will gather new information about personal stress levels, emotional well-being and group dynamics.
Dr. Maggie Aderin-Pocock, a scientist with the satellite manufacturer EADS Astrium, believes that the experiment will be extremely valuable. However, she___35___that without the glory of being the first humans to visit the Red Planet, it could be hard for these pioneers to maintain motivation.
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