阅读理解。What'stheredstarintheskythroughatelescope(望远镜)?ItisMars.Doyouwanttoknowmoreaboutit?Takethe"MarsOrbitExpress"!"MarsOrbitExpress"isaspaceprobe(探测器).ItwassenttowardsMa

Question

阅读理解。

     What's the red star in the sky through a telescope (望远镜)? It is Mars. Do you want to know more
about it? Take the "Mars Orbit Express"!
     "Mars Orbit Express" is a space probe (探测器). It was sent towards Mars by American scientists on
August 12th 2005. Its tasks are to study Mars' atmosphere and return photos to Earth. But before that "Mars
Orbit Express" must travel about 100 hundred million kilometers and seven months. It reached Mars' orbit (轨道) in March 2006.
     Mars and Earth have similar weight and size. However Mars is closer to the sun than Earth. Mars is very
cold. The average temperature is below 50℃. The temperature at noon only reaches 20℃ during a Mars day.
Its atmosphere is mostly CO ₂ . It has much sand and two moons---Phobos and Deimos.
     Scientists think Earth and Mars had similar beginnings 4.6 billion years ago. But while Earth supports
millions of lives Mars becomes bad. "Earth easily could have turned out like that." said an scientist "It is
important for us to find out why and Mars Orbit Express should do that." "Mars Orbit Express" also would
help scientists to learn what might happen to Earth in the future. "Mars Orbit Express" would work for about
four years.

1. What can you see through a telescope when watching Mars? ________.

A. Much sand
B. A red star
C. Its atmosphere
D. Its size

2. One of the tasks of Mars Orbit Express is _______.

A. taking pictures of Mars
B. studying the weight of Mars
C. finding out distance between Earth and Mars
D. telling the time it takes to go from Earth to Mars

3. Compared with Earth _______.

A. Mars has a long history
B. Mars is big and heavy
C. Mars is close to the sun
D. Mars' atmosphere is mainly O ₂ .

4. Which might be the proper title for the passage?

A. Mars:differences from Earth
B. A probe:to learn more about Mars
C. Mars: change of temperature
D. A probe:to tell the future of Earth

Answer 1

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