1. (2018高一上·邻水月考) 阅读下面短文，掌握其大意，然后从各题所给的四个选项（A，B，C和D）中，选出一个最佳选项。

The True Story of Treasure Island

    It was always thought that Treasure Island was the product of Robert Louis Stevenson's imagination. 1, recent research has found the true story of this exciting work.

    Stevenson, a Scotsman, had lived 2 for many years. In 1881 he returned to Scotland for a 3. With him were his American wife Fanny and his son 4.

    Each morning Stevenson would take them out for a long 5 over the hills. They had been 6 this for several days before the weather suddenly took a turn for the worse. Kept indoors for the heavy rain, Lloyd felt the days 7. To keep the boy happy, Robert asked the boy to do some 8.

    One morning, the boy came to Robert with a beautiful map of an island. Robert 9 that the boy had drawn a large cross in the middle of 10. “What's that?” he asked. “That's the 11 treasure,” said the boy. Robert suddenly 12 something of an adventure story in the boy's 13. While the rain was pouring, Robert sat down by the fire to write a story. He would make the 14 a twelve-year-old boy, just like Lloyd. But who would be the pirate (海盗)?

    Robert had a good friend named Henley, who walked around with the 15 of a wooden leg. Robert had always wanted to 16such a man in a story. 17 Long John Silver, the pirate with a wooden leg, was 18.

    So, thanks to a 19 September in Scotland, a friend with a wooden leg, and the imagination of a twelve-year-old boy, we have one of the greatest 20 stories in the English language.