55. A. step               B. position    C. pace         D. situation

答案  36.A  37.C  38.B  39.D  40.B  41.C  42.C  43.D  44.D  45.D  46.B  47.C  48.A  49.D  50.B  51.C  52.A  53.D  54.A  55.C

Passage 4

(南昌市南昌二中高三冲刺模拟考试)

Mars is not, it seems, the dry old planet we once believed   (36)   .Astronauts who are   (37)   to go there in the next decade may find plenty   (38)   water to slake (消除) their thirst.And with water present the   (39)   of finding some sort of life of Mars are   (40)   brighter.

    This is the view of forty geologists who have been analyzing   (41)   of pictures and other scientific   (42)   obtained by robot explorers in the sixties and seventies.

    To begin with, scientists thought the Red planet was as   (43)   as the Moon   (44)   dust storms swirling over vast sandy   (45)   .But now the picture is very different   (46)   mountains and valleys carved by   (47)   glaciers and rivers rushing and rumbling deep underground.

    In a report on the analysis of the Martian pictures Dr.Michael Car of the U.S.Geological Survey comments: “I am convinced   (48)   lots of water on Mars.” Any surface water will be in the   (49)   of ice.But it could save explorers from   (50)   to take so much   (51)   with them.

    The report says   (52)   Mars probably had a warmer climate in ages   (53)    due to its axis (轴) having been more tilted (倾斜) towards the sun.

    (54)   signs of plant or animal life have been detected by instruments landed on Mars,   (55)   the landing vehicles have been sent there for a few years.

 0  433762  433770  433776  433780  433786  433788  433792  433798  433800  433806  433812  433816  433818  433822  433828  433830  433836  433840  433842  433846  433848  433852  433854  433856  433857  433858  433860  433861  433862  433864  433866  433870  433872  433876  433878  433882  433888  433890  433896  433900  433902  433906  433912  433918  433920  433926  433930  433932  433938  433942  433948  433956  447090 

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网