一、完形填空
From the first use of the rocket (火箭) to carry satellites into space to the setting up of space stations (空间站), humans have been putting great effort into space research. And so far, we 1 many successes. But there are still large numbers of tasks in front of us and we should not stop 2 to make progress.
The international space station is an important 3 we should take in space exploration. It is not only helpful 4 necessary. It provides a proper space environment 5 many experiments that we have wanted to do for a long time. It could be an important base (基地) for later travel to the Moon and Mars. In a word, if we want to explore space more, the first thing we should do is 6 a space station.
As the space station costs a lot of money, it is 7 for one country alone to set up one. The USA seems to be one country 8 has tried to build a space station alone, but not very successful. So it has worked with many other countries to do it together. 9 it is still very expensive, it is much cheaper than doing it alone. It is really a job that needs everyone’s effort and will be useful to 10.
( ) 1. A. achieved B. have achieved C. led to D. have led to
( ) 2. A. try B. to try C. to trying D. trying
( ) 3. A. risk B. discovery C. step D. stop
( ) 4. A. or B. and C. but also D. as well as
( ) 5. A. with B. for C. to D. against
( ) 6. A. visit B. to visit C. set up D. to set up
( ) 7. A. hard B. easy C. possible D. better
( ) 8. A. what B. that C. who D. /
( ) 9. A. Because B. Since C. If D. Though
( ) 10. A. someone B. anyone C. everyone D. no one

二、阅读短文，在空白处填入适当的单词或括号内单词的正确形式（有提示词的空格不限一词，无提示词的空格限一词）
Visiting outer space is still a dream for anyone who isn’t an astronaut, but a day trip to the stars is already open for people to order!
An company is planning tests with passengers. If (1) ______________ (success), reaching the outer side of space could be as easy as flying abroad in a few years’ time.
Passengers will move (2) ______________ (slow) upwards right to the side of space, 30 km away from the Earth. There, space (3) ______________ (tour) will be able to look back at the Earth and out to dark space and the sight of millions of stars. Although the price is yet to be fixed, (4) ______________ expensive flight is likely to cost over £100, 000. Because the capsule remains within the Earth’s atmosphere (大气层), no special training (5) ______________ (need). It means that older people or those (6) ______________ health problems will be included.
One problem may be the method of (7) ______________ (land) back on the Earth. The balloon moves back down from space until (8) ______________ falls down in the sea. Passengers, (9) ______________ (spaceman), capsule and balloon are then gotten back by ship.
Now a balloon is being developed by a new company. The advantage of the balloon is that it will be (10) ______________ (cheap) than a space plane or rocket.
Space travel may be a reality (现实) soon, but how visitors get there is still a very open question.