题目内容
阅读理解
Thrilled by the successful landing of the rover(漫游者)on Mars,scientists from NASA(the National Aeronautics and Space Administration)have spent the last few days studying data from the robot and working on getting it ready to roll.The Spirit(勇气号)made a landing on Mars.The Spirit made a nerve-racking,but safe,landing on Mars on Sunday on what scientists believe is the rocky bed of an ancient lake that once may have contained life.Just three hours later,the six-wheeled rover began sending black-and-white photos of its surroundings back 170 million kilometres to Earth.The rover sent back a few colour photos on Monday.The scientists were overjoyed by the success.Two of every three past missions to Mars have failed.“It's a big step forward for all humanity.Now we have another rover on another planet,exploring a new world.What more could you ask for?”said Charles Elachi,director of NASA's Jet Propulsion Laboratory.The first images from the Spirit show a flat,wind-damaged surface dotted with small rocks.The scene made scientists eager to send the rover around the planet in search of evidence that the landing site was once covered with water.The US $ 820 million project also includes a twin golf cart-sized rover called Opportunity(机遇号),set to land on Mars'other side on January 24.The dozens of initial,low-resolution photos show Spirit landed upright(垂直的),level and facing south on a flat stretch of the hole the scientists believe once contained a lake.It will be about a week before the six-wheeled robot is ready to roll off its lander and move around Mars.Spirit's successful landing has ended the trend of failed missions to Mars.NASA's last attempt to land on Mars,in 1999,ended in failure.Its last successful landing was in 1997,when Path-finder(探险者)carried the tiny Sojourner(旅居者)rover to the surface of Mars.
Over the next three months,the robot will use a range of instruments to look for evidence of past water activity in the rocks and soil of the planet.
1.How many successful lands has NASA made on Mars so far?
[ ]
2.We can infer that the main purpose of this mission to Mars is________.
[ ]
A.to find out if there exists life on the Mars
B.to find out if we can live on the Mars
C.to find out if we can get enough water from the Mars
D.to find out if we can get enough solar energy from the Mars
3.Which of the following statements is NOT true?
[ ]
A.The Spirit will stay where it landed on Mars for about 7 days.
B.It cost $ 820 million to send the Opportunity to Mars
C.The Spirit will walk about on Mars
D.Sojourner was a smaller rover than Spirit
4.The underlined word“Thrilled”can be replaced by“________”.
[ ]
解析:
|
|
|