2. According to the third paragraph，researchers differed from each other in the problem of

　　A whether nuclear reaction would occur.

　　B whether the stars would increase its density and temperature.

　　C whether shock waves would occur.

　　D whether the uneven forces would flatten the stars.

　　3. According to the fourth paragraph，which of the following is NOT true？

　　A No nuclear explosion would be triggered inside the star.

　　B The star would be destroyed completely.

　　C Much of the star‘s matter thrown by the explosion would be beyond the black hole’s reach.

　　D The black hole would completely devour the star.

　　4. What will happen several months after the explosion of the star？

　　A The star‘s matter will move further away from by the black hole.

　　B The black hole‘s matter will heat up.

　　C The torn star‘s matter will swirl into the black hole.

　　D The black hole‘s matter will release ultraviolet light and X-rays.

　　5. According to the context，the word “disruption” in Paragraph 6 means

　　A “Confusion.”

　　B “Tearing apart.”

　　C “Interruption.”

　　D “Flattening.”

　　答案與題解：

　　1. 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.

　　2. A 該段告訴我們，兩種研究的焦點在于是否會引起核爆炸。所以，A是正確選擇。

　　3. 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。

　　4. C 第五段中its matter starts swirling into the hole itself，這里的its matter指的是the star‘smatter，即被爆炸拋出黑洞的恒星物質。所以應選C.

　　5. B 根據全篇語境，disruption在這里的意思是第一段提到的tearing apart.