According to the passage, which of the following has changed the most in the last 500 years、

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• 1Which 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.

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• 2Astronomers 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.

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• 3Eta 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.

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• 4The word “period” in Paragraph 3 means the length of time

  A.over which star vary in brightness

  B.for which Eta carinae’s brightening lasts.

  C.Eta carinae takes to become a supernova.

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

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• 5Eta 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

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• 6“Some” in the last sentence of the first paragraph refers to

  A.some cocoa trees.

  B.some chocolate drinks.

  C.some shops.

  D.some south american indians.

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• 7Thousands of Irish people starved during the “Potato Famine” because

  A.they were so dependent on potatoes that they refused to eat anything else.

  B.they were forced to leave their homeland and move to america.

  C.the weather conditions in ireland were not suitable for growing potatoes.

  D.the potato harvest was bad.

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• 8Which country is the largest coffee producer、

  A.Brazil.

  B.Colombia.

  C.Ethiopia.

  D.Egypt.

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• 9Which of the following statements is NOT true, according to the passage、

  A.One third of the world’s population drinks coffee.

  B.Coffee is native to Colombia.

  C.Coffee can keep one awake.

  D.Coffee drinks were first made by Arabs.

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• 10The passage tells us that London’s first Light Rail System.

  A.was constructed in the nineteenth century.

  B.will be finished in three years’ time.

  C.follows some of the original lines.

  D.took three years longer than expected to complet

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