閱讀理解。
     In 5 years,China plans to put its astronauts on the moon．But before that, a  small machine rover
(探月車) will be sent there．Recently, scientists  in S hanghai  showed  a  moon  rover to the public．
Scientists said they had spent four years making it．And they hoped the rover would be chosen to go
to the moon．
                                                      What is it like?
     The rover has  six  wheels (輪子)．It is  meters  high and 200 kilogrammes in weight．It can take
videos and pictures of the moon．It can also get moon soil and study it．
     The rover can go as fast as 100 meters an hour．Experts say it can climb a 30-degree slope (斜坡)．It is smart and can get around rocks．
      According to researchers,the rover may need to be improved．The moon's gravity (重力) is only
one--sixth that of  the  earth's．There are strong rays  (射線)  from  the  sun．The  temperature  also
changes greatly there．It can be --180~C at night and 150~C in the daytime．
     China wild explore the moon．First,a spaceship will be sent to go around the moon．There will be
no person in the spaceship．Then in 2012, a moon  rover  will be sent there．Finally,an astronaut will
land on the moon sometime after 2017．
     The China--made moon rover looks very similar to NASA'S Mars rover．But there are differences
Mars rover  Moon rover 
Launch(發(fā)射) time 2003 2012 in plan
Power(動力) Lithium batteries(鋰電池) Nuclear power(核能)
Speed 18 metres an hour 100 meters an hour
1．If there is a box which is 60N on the earth,it is ________ N on the moon．
A．60          
B．10            
C．a(chǎn)bout 100    
D．a(chǎn)bout 600
2．Which of the following is right?
A．In 2012,an astronaut of China will land on the moon．
B．Mars rover runs faster than Moon rover．
C．Mar rover and Moon rover have the same power．
D．China has made a Moon rover．
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