题目内容：

This year marks 45 years since Neil Armstrong became the first person to walk on the moon,taking“one small step for man and one giant leap for mankind.”Overall,12 American astronauts have walked on the lunar landscape,the last doing so in 1972.

Enthusiasm for space travel has always increased and decreased.In 2010,President Barack Obama cut funds for a NASA mission that would haveput humans back on the moonby 2020.“I understand that some believe that we should attempt a return to the surface of the Moon first,as previously planned.But I just have to say here:We’ve been there before,”said Obama.NASA Administrator Charles Bolden has alsothrown cold wateron the idea of a return mission to the moon.

But others believe there are benefits to going back to the moon.“It’s the closest future body to us,making it the least challenging to explore all the planets,moons and asteroids(小行星)in our solar system,”wrote Gene R.Grushfrom NASA Johnson Space Center.Richard Vondrak,deputy(代理的)director of the Solar System Exploration Division at NASA’s Goddard Space Flight Center,said,“Astronauts can accomplish scientific exploration that is beyond the capability of robotic explorers.”

And then there’s the private sector.In the last few years,several private companies have launched rockets of their own,ending the public sector’s monopoly(垄断)on space flight.Meanwhile,Buzz Aldrin,the second person to walk on the moon,believes that there’s amuch better goalfor exploration:Mars.“We’ve walked on the moon,so we understand it better than anything else,”Aldrinsaid.“We’ve got to start thinking of long-term investments.”

1.What can we know about Neil Armstrong’s walking on the moon?

A. He stepped on the moon in 1972.    B. It is highly thought of in the world.

C. It took astronauts 45 years to do that.    D. He did it together with 11 astronauts.

2.What can we learn about Gene R.Grush?

A. He hopes to use robots to explore the moon.

B. He thinks the moon is the easiest to explore.

C. He thinks we should explore all the stars.

D. He’s the deputy director of NASA.

3.Who supports exploring the Mars?

A. Charles Bolden.    B. Richard Vondrak.    C. Buzz Aldrin.    D. President Obama

4.What can be the best title of the text?

A. Should we go back to the moon?    B. How can we return to the moon?

C. What can we find in the universe?    D. Should we do a research on space?