下列说法正确的是（ ） ①我国水土流失严重②我国沙漠化面积不断扩大 ③我国草场资

     In the Tang Dynasty (朝代), there was a famous poet    1    name was Li Bai. He was born in a poor
family. And he died     2   1762 AD. When he was young, he didn't like reading.
     Once, he saw an old woman    3    an iron pestle (杵) when he was    4    from the school. Li Bai was
very    5   . He asked    6    that for?
     The old woman said she would grind the iron pestle into a needle (针). Li Bai    7   , "The pestle is so
thick, and when can it be ground down to a needle?" The old woman smiled , "My boy, where there is will,
there is a way!" The pestle is thick, but if I grind it every day, it can be ground down into a needle    8    .
Am I right?"
     Li Bai thought to him self, "what she said is right. Nothing in the world is    9    if I set my mind in it.
It is all the same to the study. If I put my heart into it, can't I study well?"
     Li Bai understand the truth. After that, he studied diligently (勤奋). At last he became a famous poet,
and    10    a good name for more than a thousand years.