英语听力精选进阶版 15732（在线收听）

WBR: Fat to Fit 28 Mar 14

Fri, 28 Mar 14

Is exercise the best way to shed the pounds? In the last of our special series on obesity, we ask what governments can do to encourage more physical activity. We hear from the mayor of Oklahoma City, Mick Cornett, who re-engineered the city to put the interests of pedestrians before cars. We go to Brazil to find out how they're getting people moving in the run up to the Olympics. What role will new technology play in helping keep us all on target? Plus, can colours, smells and sounds persuade us that the food we're eating is sweeter than it really is? The new science of neurogastronomy.