What would it be like to live on Mars? Volunteers are spending eight months in an area that looks much like the surface of Mars. They are isolated(孤立)high on top of Mauna Loa, a volcanic mountain on the Big Island of Hawaii, living on a simulated(模仿的) or make-believe, Mars Base.The project called HI-SEAS is in the charge of Kim Binsted. She says this wild environment is as close to Mars as you can find on Earth. Because it is so high, the land is not warm or rich with plants, like the rest of Hawaii.“You will see there is really no visible plant life or animal life. And you have go