Day 7-2021年中考英语考前抢分练之阅读理解专练（苏州专用）

Day 7 A Take a look inside a high school classroom. You will most likely find a teacher at the front of the class and students sitting at their desks. Yet, look closer, and you might notice a familiar scene: many of these students are not paying attention. Instead, they are dozing off（打盹）or even completely asleep. Today, the majority of high school students are not getting enough sleep. This lack（缺乏）of sleep is a serious problem, especially as students are doing more than ever with their time. They come to school early, spend hours listening to teachers and taking tests, then run off to practices and meetings, and come home to be faced with even more work. And the homework load these days is not light; teachers give hours worth of homework each night. Most kids need at least nine hours of sleep per night in order to function properly. Yet the period of this nine hours shifts as a child gets older. After puberty（青春期）, the body's internal clock changes so that it is difficult for teen