When the astronauts sat around the galley table inside the habitat for a series of media interviews,they all showed off badges hanging from lanyards around their necks.Motion trackers on the badges will help researchers on land study the way the crewmembers move and interact with each other in a closed environment.They are also equipped with sensors that check their heart rate and the amount of light they’re exposed to.Occasionally,the astronauts take a swab of saliva,which will tell scientists what kinds of hormones they’re releasing at c ertain times of day.
【语篇导读】美国在水下19米处修建了一个封闭的空间,让宇航员在那里接受训练,模仿将来在太空中的生活。
In the Aquarius Reef Base,astronauts .
A.are preparing for their trips to Mars
B.aren’t prevented from bringing a lot of things
C.have a sense of fear in this limited place
D.have to kill time by watching fish outside
答案:B
解析:细节理解题。根据第三段的“We’renotreallydeprivedofmuch...tobringiPads,iPhones,andafewsetsofclothes.”可知,这些宇航员可以携带很多东西。
