2020年职称英语综合B概括大意真题及答案

1、2020年职称英语综合 B 概括大意真题及答案Tunguska Event1.A hundred years ago this week, a gigantic explosion ripped( 撕裂)open the clear sky above a forest in western Siberia, leaving a scientific riddle that endures to this day.2.A dazzling light pierced the heavens, followed by a shock wave as strong as 1000 atomic b

2、ombs. The explosion flattened 80 million trees across an area of 2000 square kilometers. The fireball was so great that, a day later,Londoners could read after the nearly Podkamennaya Tunguska river, still remains a mystery.3. Experts suspect it was a rock that, after traveling in space for millions

3、 of years, was destined to crash to Earth as exactly 7 ：17 a.m on June 30, 1908. This possibilityworries scientists. "Imagine an unspotted asterold(小行星 )hitting a significant chunk of land and imagine if that area, unlike Tunguska, were populated," the British science journal Nature commen

4、ted recently.4. But no fragments of the "rock" have ever been found Finding such evidence would be important, for it wouldincrease our knowledge about the risk posed by dangerous Near Earth Objects (NEOs), say Italian researchers Luca Gasperini, Enrico Bonam and Gisueppe Longo. When the ne

5、xt Tunguska NEO approaches, scientists will have to decide whether to try todeflect(使偏转 )it or blow it up in space.5. However, several rival theories for the Tunguska Event exist. Wolfgang Kundt, a professor at Germany's BoonUniversity, believes the Tunguska Event was caused by amassive escape o

6、f 10 million tons of methane(甲烷)-rich gas from deep within earth's crust. Some people hold that theexplosion was caused by an alien spaceship crash, of a black hole in the universe.23. 【题干】 Paragraph 2 【选项】A.Competing Explanations B.Unknown Attacks C.Mysterious Explosion D.Star WarE.Importance o

7、f Finding EvidenceF.Explanation that Worries Scientists【答案】 C【解析】24. 【题干】 Paragraph 3 【选项】A.Competing Explanations B.Unknown Attacks C.Mysterious Explosion D.Star WarE.Importance of Finding EvidenceF.Explanation that Worries Scientists【答案】 F【解析】25. 【题干】 Paragraph 4 【选项】A.Competing Explanations B.Unknown Attacks C.Mysterious Explosion D.Star WarE.Importance of Finding Evidence F.Explanation that Worries Scientists【答案】 E【解析】26. 【题干】 Paragraph 5 【选项】A.Competing Explanations B.