精选优质文档-倾情为你奉上S6 unit1unit2阅读：aPeople are more likely to wash their hands properly after using the toilet if they are shamed into it or think they are being watched, scientists said on Thursday.Hand-washing is the cheapest way of controlling disease but less than one third of men and two thirds of women wash their hands with soap after going to the toilet, a British study by the London School of Hygiene and Tropical Medicine showed.But when prompted by an electronic message flas
