【答案解析】根据一项最新研究，在一场数学测试之前让学生听一会古典音乐，可以帮助学生的成绩提高8～9分。音乐似乎能够使大脑神经兴奋地活动，这与一个人在解决数学问题时的大脑活动是相似的。然而，科学家提醒说，大脑的兴奋活动效应只能持续10～15分钟。摇滚乐与钢琴曲也能一样起到这种作用吗?科学家的回答是否定的。事实上，复杂程度低的音乐都可能干扰大脑的推理思维能力。 [听力原文] According to a recent research, listening to classic music before a math test may help students improve their scores by 8 to 9 points. The music seems to excite nerve activities in the brain, similar to the activity that occurs when a person is figuring out a math problem. However, the scientists warn that brain exciting effects last only 10 or 15 minutes. Would rock music work as well as the piano music do? No, the scientists say. In fact, the less complex music might even interfere with the brains reasoning ability.

【答案解析】这条观光邮轮能容纳2800位乘客以及1200个工作人员。在你登记后，可以直接去你的住宿铺位。你持有个人通行卡进入船舱，该卡可当作信用卡支付你在船上购买的任何东西，包括饮料，所以，你没有必要携带任何现金。这对于那些认为付小费是很尴尬的行为的人来说，真是太好了。所有的饮料、酒都需要额外支付15%的标准服务费，因此，你不再需要直接给小费了。 [听力原文] The sightseeing ship has a capacity of carrying 2,800 passengers and 1,200 crew members. After check-in, you can make your way to your accommodation. Access to the cabin is given by a personal card, which also serves as a credit card for everything you buy on board, including drinks, so there is no need to carry cash. This is great for those who find tipping such an awkward practice. There is a standard 15% service charge on all drinks, so you never have to tip directly.