5．conduct n．行为；品行
vt.指挥；管理；主持；实施；为人，表现；传导
请写出句中黑体部分的含义
①We are conducting a survey of consumers’attitudes towards organic food.__________
②Nonmetals such as wood，glass and plastic cannot conduct heat easily._________
③The orchestra is conducted by John Williams._______
④“I can't scold your cheating on the examination，”said a father to his son.“ But I'm glad that you conduct yourself honestly next time.”_______________
