As the space station costs a lot of money, it is hard for one country alone to establish one. The USA seems to be the only country that has the ability to build a space station alone，and it has tried to do so, but not very successful. So it aggregated many other countries to work on it together. Though it is still extremely expensive, it is much cheaper than doing it alone. It is really a job that needs everyone’s effort and will benefit everyone.

　　But even so, the funds needed are still a big problem. As for the USA, it seems that it has too many things to spend its money on. Although it is the richest country in the world, it has much debt every year. It has to make arrangements about its finance, and try to find a balance in all these issues.

　　1. What is the author’s attitude towards building and developing the international space station?

　　A. Supportive.

　　B. Doubtful.

　　C. Critical.

　　D. Dissatisfied.

　　2. From Paragraph 2 we learn that ______.

　　A. the necessity of building the international space station is not realized nowB. many experiments have been done in the international space station

　　C. the international space station is necessary for people to explore more space

　　D. people have traveled to Mars from the international space station

　　3. Which of the following is NOT a reason for countries’ cooperation in building the international space station?

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