The Boy and the Nettle（在线收听）

    A boy playing in the fields got stung by a nettle．He ran home to his mother，telling her that he had but touched that nasty weed，and it had stung him．“It is just your touching it，my boy，”said his mother，“that caused it to sting you；the next time you meddle with a nettle，grasp it tightly，and it will do you no hurt．”
    Do boldly what you do at all．Exercises：
    判断对（T）、错（F）：
    ① When a boy was playing in the fields，he got stung by the net－tle．② The boy ran home and told his sister．③ The boy's mother said that the boy got stung by the nettle be－cause he was just touching it．④If the boy had grasped the nettle tightly，he wouldn't have been stung．回答下列问题：
    ①What happened when the boy was playing in the fields？
    ② From his mother's words，what will you learn？