Many years ago, there was an emperor(皇帝). One day he told his horseman that if he could ride on his horse and 1 as much land area as he liked, he would give him the area of land he had covered.2 enough, the horseman quickly jumped onto his horse and 3 as fast as possible to cover as much land area as he could.

    He 4 riding and riding, whipping the horse to go as fast as possible. Even when he was 5or tired, he did not stop 6he wanted to cover as much area as possible. When he at last covered a large amount of land, he was exhausted and was 7. Then he asked himself, “Why did I 8myself so hard to cover so much land area? Now I am dying and I only 9 a very small area to 10myself.”

    The above story is 11 to the journey of our 12. We push ourselves very hard every day to make more 13, to gain power or recognition. We neglect(疏忽，忘记) our 14, time with our family and to appreciate the surrounding 15and the things we love to do. One day 16 we look back, we will 17that we don't really need that much, 18 then we cannot turn back time for what we have 19

    Life is not about making money. Life is definitely(肯定地) not about work! Work is only 20 to keep us living so as to enjoy the beauty and pleasures of life.

生物学研究表明在8﹣17岁期间，男女生身高增长速度规律呈现如图所示，请你观察此图，回答下列问题：男生身高增长速度的巅峰期是____ 岁，在____ 岁时男生女生的身高增长速度是一样的．