Question 5 is based on the news report you have just heard.

听力原文

       (5) [Tons of gold have fallen out of the sky in Russia after a cargo plane malfunctioned in mid-air this morning.] The aircraft was carrying £265 million worth of gold and diamonds when the door flew open—sending the precious metal back to earth. According to the official news agency, Russian authorities have recovered more than 170 gold bars weighing 20 kilograms each. The plane was traveling from Yakutsk Airport in a major diamond-producing region to the city Krasnoyarsk in Siberia. (6) [However, the aircraft made an emergency landing in Magan after it began losing some of its valuable cargo.] Reports suggest some bars of gold was scattered up to 15 miles away from the airport. 9 tons of gold on plane AN-12 belonged to a gold mine company. Police have sealed off the runway and say it is unclear if it was an accident or an attempted robbery. (7) [Technical engineers who worked on the plane prior to take-off are reportedly going to be questioned by the police.]

5. What is the news report mainly about?

解析：D。录音开头提到，俄罗斯一架货机在半空中出现故障，成吨的黄金从天而降（Tons of gold have fallen out of the sky）。D项与此内容相符，其中的loss of gold from an airplane对应录音中的gold have fallen out of the sky，故D项为正确答案。

错项排除：录音中提到，俄罗斯一架货机在半空中出现故障，舱门打开，飞机上的金条和钻石掉落到地面上（back to earth），并没有说金子和钻石消失了，A项曲解文意，故排除。录音中提到一架运输黄金和钻石的飞机，但主要内容是说出现故障，B项的transfer并非主要内容，故排除。C项利用录音中出现的Russian和cargo plane进行干扰，但crash在录音中无依据，故排除。