填空题

Think twice next time someone asks you for "five minutes of your time" it could cost you more than you think. A British professor has (15)______ a mathematical (16) _____ to help people find out exactly how much an hour of their time is worth. Professor Ian Walker of Warwick University (17) _______the value of time after research showed that over 80 percent of respondents would buy more time if they could (18) ______ it. "Traditionally, wages or salaries have given an (19) _______ of how we are valued at work," Walker, an (20) ______ professor, said in a statement. "However, by looking at salaries against taxation, the cost of living and (21) _____ variations, we can see (22)____________________" The formula could help in making decisions, such as whether to cook a meal or to get a takeaway, or whether to take public transport or a taxi. Visitors to www. barclaycard, co. uk/timeismoney can (23)__________________by entering their salary, the region where they work and what kind of work they do. For example, for a professional working in London and earning 25,000 pounds a year, an hour would be worth 6.44 pounds, according to the Web site. Cooking dinner would cost 5.37 pounds－cheaper to get a takeaway, (24)__________Brushing your teeth comes at 32 pence－perhaps hard to find someone to do it for you for less.