Making His Mark（在线收听）

    A man from the state of Chu was crossing a river in a boat when his sword fell into the water．Immediately he made a mark on the boat．“This is where my sword fell off，”he said．When the boat stopped moving，he jumped into the water to look for his sword at the place where he had marked the boat．The boat had moved but the sword had not．Is this not a very foolish way to look for the sword？
    Exercises：
    判断对（T）、错（F）：
    ①The man from the state of Chu threw his sword into the water on purpose．②After his sword fell into the water the man made a mark on the boat．③The man found his lost sword at last because he had made a mark．