try to do 和 try doing 的区别（有题目）

题目

try to do 和 try doing 的区别（有题目）
Previously,Frence's telecoms regulation authority tried _____(encourage) concert audiences to use the vibrate mode or to switches off their phones entirely.However ,it met with no apparent success.
为什么填encouraging而不填to encourage?

答案

try to do sth想要、设法
try doing sth尝试做……
原句的意思是尝试鼓励演唱会的听众将手机调成振动模式或直接关掉手机,在这里如果用try to encouge显然不是句子想表达的意思,只有try encouraging符合句意.
举个简单的例子：
eg:You should try to eat more fruit 你应该尽量多吃水果.
You should try eating more fruit.你应该试试多吃点水果.