问答题 Translate the following passages into Chinese. Each translated passage will account for 15 points. Give the number of the passage on your Answer Sheet. Schools should consider using signal-blocking devices to prevent pupils using mobile phone text messaging to cheat in examinations, a leading expert on exam fraud said yesterday. Jean Underwood, a Professor of Psychology at Nottingham Trent university, said that although most of the debate on the use of new technology and cheating had focused on universities, the problem was likely to be more widespread in schools. "The problems of academic dishonesty may be less well researched in the school system than in the tertiary education sector, but all the evidence points to the problem being both real and on a growing scale," She said.