Black Holes Trigger Stars to Self-Destruct　　Scientists say this Uneven pulling is not the only hazard facing the star.The strain of these unbalanced forces can also trigger a nuclear explosion powerful enough to destroy the star from within.Matthieu Brassart and Jean-Pierre Luminet of the Observatoire de Paris in Meudon，France1,carried out computer simulations of the final moments of such an unfortunate stars life，as it veered towards a supermassive black hole.　　The new simulations investigated the effects of shock waves in detail，and found that even when their effects are included，the conditions favor a nuclear explosion.There will be an explosion of the star it will be completely destroyed, Brassart says. Although the explosion obliterates the star，it saves some of the stars matter from being devoured by the black hole.The explosion is powerful enough to hurl much of the stars matter out of the black holes reach，he says.　　If stars disrupted near black holes really do explode，then they could in principle allow these events to be detected at a much earlier stage，says Jules Hatpern of Columbia University in New York，US2.It may make it possible to see the disruption of that star immediately if it gets hot enough, he says.　　注釋：　　Columbia University in New York，US：美國紐約哥倫比亞大學，長青藤聯盟校之一。創建于1756年，當時名為國王學院。美國獨立后，為了紀念發現美洲新大陸的哥倫比亞就改為哥倫比亞學院，直到1921年成為一所綜合大學。1897年，該校遷址曼哈頓上城區校區。　　練習：　　A The black hole could tear apart the star.　　C The black hole could dwindle its size considerably.　　According to the third paragraph，researchers differed from each other in the problem of　　B whether the stars would increase its density and temperature.　　D whether the uneven forces would flatten the stars.　　A No nuclear explosion would be triggered inside the star.　　C Much of the stars matter thrown by the explosion would be beyond the black holes reach.　　What will happen several months after the explosion of the star?　　B The black holes matter will heat up.　　D The black holes matter will release ultraviolet light and X-rays.　　A Confusion.　　C Interruption.　　答案與題解：　　C 短文的第一和第二段提供了答案。第一段第一句說，特大質量的黑洞能夠撕裂靠近它們的恒星；第二段的第二句說，由于它們之間力量的懸殊，恒星內部會發生核爆炸。第五段提及黑洞吞噬恒星的問題。C的內容文章中沒有找到，所以應該選擇C。　　D 第四段告訴我們，模擬實驗發現，整個的條件會引起核爆炸，這將徹底毀滅恒星，但恒星的一些物質會被強力的爆炸拋出黑洞。所以，A、B、C三個選擇的內容都是正確的說法，而D不是。　　B 根據全篇語境，disruption在這里的意思是第一段提到的tearing apart。

　　Black Holes Trigger Stars to Self-Destruct　　Scientists say this Uneven pulling is not the only hazard facing the star.The strain of these unbalanced forces can also trigger a nuclear explosion powerful enough to destroy the star from within.Matthieu Brassart and Jean-Pierre Luminet of the Observatoire de Paris in Meudon，France1,carried out computer simulations of the final moments of such an unfortunate stars life，as it veered towards a supermassive black hole.　　The new simulations investigated the effects of shock waves in detail，and found that even when their effects are included，the conditions favor a nuclear explosion.There will be an explosion of the star it will be completely destroyed, Brassart says. Although the explosion obliterates the star，it saves some of the stars matter from being devoured by the black hole.The explosion is powerful enough to hurl much of the stars matter out of the black holes reach，he says.　　If stars disrupted near black holes really do explode，then they could in principle allow these events to be detected at a much earlier stage，says Jules Hatpern of Columbia University in New York，US2.It may make it possible to see the disruption of that star immediately if it gets hot enough, he says.　　注釋：　　Columbia University in New York，US：美國紐約哥倫比亞大學，長青藤聯盟校之一。創建于1756年，當時名為國王學院。美國獨立后，為了紀念發現美洲新大陸的哥倫比亞就改為哥倫比亞學院，直到1921年成為一所綜合大學。1897年，該校遷址曼哈頓上城區校區。　　練習：　　A The black hole could tear apart the star.　　C The black hole could dwindle its size considerably.　　According to the third paragraph，researchers differed from each other in the problem of　　B whether the stars would increase its density and temperature.　　D whether the uneven forces would flatten the stars.　　A No nuclear explosion would be triggered inside the star.　　C Much of the stars matter thrown by the explosion would be beyond the black holes reach.　　What will happen several months after the explosion of the star?　　B The black holes matter will heat up.　　D The black holes matter will release ultraviolet light and X-rays.　　A Confusion.　　C Interruption.　　答案與題解：　　C 短文的第一和第二段提供了答案。第一段第一句說，特大質量的黑洞能夠撕裂靠近它們的恒星；第二段的第二句說，由于它們之間力量的懸殊，恒星內部會發生核爆炸。第五段提及黑洞吞噬恒星的問題。C的內容文章中沒有找到，所以應該選擇C。　　D 第四段告訴我們，模擬實驗發現，整個的條件會引起核爆炸，這將徹底毀滅恒星，但恒星的一些物質會被強力的爆炸拋出黑洞。所以，A、B、C三個選擇的內容都是正確的說法，而D不是。　　B 根據全篇語境，disruption在這里的意思是第一段提到的tearing apart。