The Ass and the Flutev（在线收听）

    As an ass was quietly dining on thistles，he beheld a shepherd seated beneath a tree，awakening sweet echoes on his flute，and charming the ears of all within hearing，excepting our discontented lop-eared brute，who thus soliloquized：“The world is going mad！Be-hold all the people admiring，with open mouths，a fool who is straining and puffing himself into a perspiration with blowing into a little hollow tube．So easily are mankind pleased，while-but no matter．Let me hasten out of the fool's hearing．I shall go mad．”
    As our scandalized ass was moving off at a brisk canter，he presently almost kicked against a flute，which chanced to have been left on the turf by an amorous shepherd．The ass stopped，gazed knowingly round，and contemplated the flute as it lay；slowly he lowered his head，and placing his under lip on the mouth-hole，he blew in- to the despised instrument，when，mirabile dictu，it yielded an agree- able sound．Our ass thought himself a clever fellow，and cried aloud，as he kicked his hind legs in the air with joy，“Bravo！I too can play on the flute！”
    Exercises：
    回答问题：
    ① What did the ass see when dining on thistles？
    ② What did the ass think himself？