43. From the passage, we can learn that __________.

　　 A. Yi So-yeon, a space tourist came from South Korea

　　 B. Whitson became energetic when they landed on earth

　　 C. the two other guys were not afraid during the descent

　　 D. the Soyuz, an unmanned space capsule, had a long history

42. The reason why Yi Suo-yeon felt afraid at first was that __________.

　　 A. a fire was caused by the friction

　　 B. she had no such experience before

　　 C. she was not brave enough

　　 D. the other two didn't help her

41. What's the main idea of the passage?

　　 A. Flight in space is very dangerous

　　 B. Not everybody can go into space

　　 C. Fearful landing tests the Korean astronaut

　　 D. Yi didn't know she would be an astronaut when she was young

39．one，不定代词，指代任意一只butterfly。

38．be seen，考查动词不定式的被动语态，意为“然后他们很难被看见”。

37．which／that，关系代词，引导限制性定语从句?

36．leaves，leaf的复数形式是leaves。

35．when／while，when／while+ving分词相当于由when引导的时间状语从句，“正在飞时”。

34．Some，不定代词，“一些”。