進入檢視：2022-2023學年英語週報高二課標外研第13期答案彙總

However, not everyone is convinced. Obesity expert Professor Nick Finer, of University College London, told New Scientist magazine that more studies were needed to prove a link between the virus and weight gain. “No matter how many association studies are reported, they do not prove what really causes the obesity,” he said. 

Feifei, an 11-year-old boy from Xuzhou, Jiangsu Province, suffered from a sudden serious eye disease which has almost led to blindness. It was caused by excessive(過度的) eye tiredness during the winter vacation, during which he played computer games for a continuous 10 days and nights.

Many youngsters in China nowadays are increasingly crazy about computer games and other electronic products, and can’t help themselves. This is followed by a series of health problems, with the most typical case—nearsightedness.

According to the latest research report released by the World Health Organization (WHO), the nearsightedness rate among Chinese youngsters ranks first in the world—70 percent of high school and college students. The rate is nearly 40 percent in primary school students, while it is only 10 percent for their peers in the United States.