[职称英语真题]2016年考试《综合A》概括大意真题及参考答案详解及答案详解
2016-04-01 07:21:07 来源:91考试网 作者:www.91exam.org 【

2016年职称英语考试《综合A》概括大意真题及答案

第3部分:概括大意与完成句子(第23——30题,每题1分,共8分)

下面的短文后有2项测试任务:(1)第23——26题要求从所给的6个选项中为第2——5段每段选择1个最佳标题;(2)第27——30题要求从所给的6个选项中为每个句子确定1个最佳选项。

Tunguska Event

1 A hundred years ago this week, a gigantic explosion ripped (撕裂) open theday y above a forest in western Siberia, leaving a scientific riddle thatendures to this day.

2 A dazzling light pierced the heavens,followed by a shock wave as strong as1,000 atomic bombs. The explosion flattened 80 million trees across an area of2,000 square kilometers. The fireball was so great that, a day later, Londonerscould read their newspapers under the night sky. What caused the so-calledTunguska Event, named after the nearby Podkamennaya Tunguska river, stillremains a mystery.

3 Experts suspect it was a rock that, after traveling in space for millionsof years, was destined to crash to Earth at exactly 7:17 a.m. on June 30, 1908.This possibility worries scientists.“Imagine an unspotted asteroid (小行星) hittinga significant chunk(块) of land ... and imagine if that area, unlike Tunguska,were populated,” the British science journal Nature commented recently.

4 But no fragments of the “rock” have ever been found. Finding such evidencewould be important, for it would increase our knowledge about the risk posed bydangerous Near Earth Objects (NEOs), say Italian researchers Luca Gasperini,Enrico Bonatti and Giuseppe Longo. When the next Tunguska NEO approaches,scientists will have to decide whether to try to deflect (使偏转) it or blow it upin space.

5 However, several rival theories for the Tunguska Event exist. WolfgangKundt, a professor at Germany's Bonn University,believes the Tunguska Event wascaused by a massive escape of 10 million tons of methane(甲烷)-rich gas from deepwithin earth's crust. Some people hold that the explosion was caused by an alienspaceship crash, or a black hole in the universe.

23. Paragraph 2 C

24. Paragraph 3 F

25. Paragraph 4 E

26. Paragraph 5 A

A. Competing Explanations

B. Unknown Attacks

C. Mysterious Explosion

D. Star War

E. Importance of Finding Evidence

F. Explanation that Worries Scientists

27. The gigantic explosion that occurred a hundred years ago A

28. The shock wave which followed the dazzling light D

29. The hypothesis that the explosion was caused by a rock colliding with theEarth B

30. Wolfgang Kundt, who has developed an alternative theory C

A. has remained a puzzle

B. lacks sufficient evidence

C. is a university professor

D. was generated by the explosion

E. will kill many animals

F. are attacked by aliens

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