One morning, Mr. Wolf told his wife he would catch some toads (癞蛤蟆) for her to eat. (hear) these annoying words, Mrs. Wolf grabbed a pan to beat him. Not wanting to (scold) by his wife, Mr. Wolf decided to invent something to help him catch goats. He got (inspire) when he saw a spring (弹簧) and invented a pair of spring shoes. With the magic shoes, Mr. Wolf (jump) onto the sky above the sheep village where the goats were practicing spears (标枪). Seeing Mr. Wolf, the goats immediately threw their spears at him with a (frighten) look on their faces. Hearing a loud noise, Red Wolf opened the door and found her husband (trap) to the wall with many spears in his body. As a determined inventor, Mr. Wolf didn't lose heart. He improved his invention and made a new pair of spring shoes, hoping(catch) the goats.
In order to defeat Big Big Wolf, Slow Goat (lose) in thought. Suddenly, a good idea occurred to him. After a few days' experiment, a magic insole (鞋垫)was invented, (make) Mr. Wolf badly injured as he hit his house heavily. And he had to have his house (repair) in the following week.