The spacecraft is equipped with a shovel-like robotic arm that will be used to dig into the ground and retrieve samples for testing in the lander's small laboratories.

　　The lander was sent to a spot on Mars' northern regions in hopes of finding frozen water, but just how deep underground it would be found was unknown.

　　The robot arm is expected to begin its first digging operations after several more days of testing.

　　Once the arm starts digging, dirt and ice it scoops up will be deposited in several small ovens to be heated. Measuring devices will test the resulting gases.

　　The University of Arizona in Tucson is leading and NASA's Jet Propulsion Laboratory is managing the three-month scientific mission.

　　1．What was the Phoenix lander meant to do?

　　A．To search for frozen water on Mars

　　B．To explore life in outer space

　　C．To study the minerals in the soil．

　　D．To discover new rsouzees in outer space．

　　2．Why did NASA scientists feel worried about the finding?

　　A．Because the ice is too large for NASA scientists to dig up．

　　B．Because it takes some time to deal with the large patch of ice．

　　C．Because it’s impossible for Phoenix lander to conect the ice．

　　D．Because

　　it’s hard to carry the ice back to laboratories on the earth

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