1）他身体素质下降和肥胖的原因：作业多，运动少，做家务少，熬夜玩手机，饮食不健康；

2）改善的方法和建议，少玩手机，保证充足睡眠，多运动，均衡饮食。

注意：1）词数100左右；

2）可适当增加细节，以使行文连贯。

肥胖症obesity

Dear John,

    Your faithfully,

    Li Hua

    At only 12, Milton Hershey stopped ____ (attend) school and began to work for a candy maker in Lancaster. There, he learned to mix sugar and water to make candy products,____ he moved to Philadelphia to set up a candy store. However, his store was a complete ____ (fail). So he ____ to Lancaster and began making caramels (焦糖) in his own way — with fresh milk and he made it.

Then in 1893 he bought the chocolate-making machines made by Germany. He was developing a(an)____ (usual) plan — to build a large chocolate factory and a town to support it. So soon he bought a town ____ he set up his chocolate factory in the following year. The factory provided free accommodation and all his workers lived in it. He found a way to make large amounts of milk chocolate. The Hershey Candy Company was on its way to success.

    Today, in the town of Hersey, the streetlights ____ (shape) like the candy. The air often smells ____ chocolate. At Hershey's Chocolate World, visitors can learn ____ chocolate is made. This special town calls ____  “The Sweetest Place on Earth.”