XIANGNING, Shanxi - The number of people trapped underground after a coal mine flooding in north China's Shanxi Province was revised -- for a second time -- to 153 from 123, rescuers said late Sunday night. Investigations showed that 261 workers were in the pit of Wangjialing Coal Mine under construction when underground water gushed in at about 1:40 pm. Of them, 108 were lifted safely to the ground while 153 others trapped in the shaft, according to the rescue headquarters. Most of the trapped are migrant workers from Shanxi, Hebei, Hunan and Guizhou provinces,' a rescuer said. The exact number of people trapped is still being checked. Soon after the accident happened, the Shanxi Provincial Work Safety Administration and the Shanxi Provincial Emergency Affairs Office said 152 people were trapped underground, but officials later changed the figure to 123. Rescuers are struggling to save the trapped people, and local authorities are investigating the cause of the accident. President Hu Jintao and Premier Wen Jiabao ordered local authorities to spare no effort to save the trapped while guarding against secondary accidents. Vice Premier Zhang Dejiang rushed to the site late Sunday to oversee the search and rescue operation. The mine, sitting astride Xiangning County of Linfen City and Hejin City of Yuncheng City, covers about 180 square kilometers. The mining zone boasts more than 2.3 billion tonnes of coal reserves, including nearly 1.04 billion tonnes of proved reserves, according to the company's official website.It is now under infrastructure construction and is expected to produce 6 million tonnes of coal annually once put into operation. The mine, affiliated to the state-owned Huajin Coking Coal Co. Ltd., is a major project approved by the provincial government. 小题1:At least how many people were trapped underground according to the latest report? A．123 B．153 C．261 D．152 小题2:Most of the worked trapped are from __________. Which of the following answers is WRONG? A．Shanxi B．Hunan C．Guizhou D．Hefei 小题3:What’s the cause of this accident? A．The underground water gushed B．The coal mine was under construction C．It is still being investigated by the local authorities D．The passage does not mention it at all 小题4:According to the passage, which of the following statement is right? _________ A. The local authorities fully support the rescue work B. Vice premier Zhang Dejiang rushed to the site early Sunday to oversee the search C. The Wangjialing Coal Mine can produce 6 million tonnes of coal each year now D．The coal mine is a major project approved by the country. 40. What’s the best title of the passage?_________ A. Number of people trapped in China colliery(煤矿) flooding revised to 153 B．The Wangjiajing Coal Mine C．Rescue work D. Who are to blame?