职称英语复习资料理工类C级阅读理解精选(2)_职称英语阅读理解

　　31. Eta Carinae is now engaging in

　　A. some very common behaviour B. some very dull behaviour

　　C. some very frightening behaviour. D. some very strange behaviour

　　32. The word period in Paragraph 3 means the length of time

　　A. over which star vary in brightness

　　B. for which Eta carinaes brightening lasts.

　　C. Eta carinae takes to become a supernova.

　　D. it takes the laser from Eta carinae to travel to the earth.

　　33. Eta Carinae is hard to observe because

　　A. it is too far away. B. there is too much dust and gas around it.

　　C. the binoculars are not powerful enough.D. it does not send out infrared light.

　　34. Astronomers are particularly interested in Eta Carinae because

　　A. it is in its final stage. B. it is a supernova.

　　C. it exploded in 1987. D. it is brighter than the sun.

　　35. Which of the following statements about Eta Carinae is NOT true?

　　A. It will end up as a supernova.

　　B. It can be seen only through binoculars.

　　C. It is the only star that sends out an ultraviolet laser.

　　D. Its ultraviolet laser is brighter than that of the Sun.

　　Answers: 31. D 32. A 33. B 34. A 35. C

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