Idioms:
put out feelers (on someone or something):
to arrange to find out about something in an indirect manner；to try to discover what people think about something that you might do；放出触角；加以试探；谨慎地探听别人的观点
Usage notes：From the context of certain animals using their feelers to gain awareness of their surroundings, as survival readily requires knowledge of nearby threats, food, water, shelter, or mates.
Example:
1. They put out feelers to see if anyone was interested in buying the company.
2. I've been putting out a few feelers and it seems that most people are against changing the way we elect the committee.
Quiz:
1. As you know, animals use their feelers to do lots of things, except____.
A. looking for food
B. discovering enemies
C. fighting
上期答案：
1.B
2.If you don't study hard at youth, you are making a fool of yourselves.
