阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词或使用括号中词语的正确形式填空。
Don’t shoot butterflies with guns.
Can you imagine someone runninga butterfly with a gun in his hands? Won’t such stupidity make you burst out laughing? But wait. Stop and consider how often you might have donesimilar.
hen, Henny-Penny, lived in a forest with many other animals and birds. One fine, sunny morning, she was busy looking for worms in the ground. Suddenly she let out a(frighten) cackle (咯咯叫 ) with wings flapping in fear. A dry leaf had fallen down on her, and she went screaming at whoever she met, “Run, run for your lives; the sky(fall).” The other birds and animals stopped whatever they were doing. Some ran behind Henny-Penny, screaming warnings with her, others spread the unfounded story that the sky was falling.
We all have come across people like this hen. The rest of us are like the other foolish creatures did not stop to verify ( 证实 ) the(true) for themselves. They shoot butterflies with guns. They just will not think for themselves.
Why don’t people think for? Often because of laziness, or because they do not want to be responsible for their way of thinking. Don’t let your mind be enslaved  someone else. Stop, think and then go ahead. Let these signals direct you at every crossroads of life.