UNIT 2 Assessing Your Progress-实践·注重应用评价 课时跟踪检测(Word练习)-【新课程学案】新教材2022-2023学年高中英语选择性必修第三册（人教版2019）

[课时跟踪检测]　　　　　重点题型强化练 Ⅰ.阅读理解 The world's largest study about sleep was launched in June 2017 and within days more than 40,000 people from around the world participated in the online scientific investigation, which includes a questionnaire and a series of cognitive (认知的) performance activities. “We really wanted to figure out the sleeping habits of people around the world. Obviously, there have been many smaller sleep studies of people in labs but we wanted to find out what sleep is like in the real world，” says Adrian Owen. “People who logged in gave us a lot of information about themselves. They told us things like which medicine they were on, how old they were, where they were and what kind of education they'd received because these are all factors that might have contributed to some of the results.” About half of all participants reported typically sleeping less than 6.3 hours per night, about an hour less than the study's recommended amount. One shocking fact was that most participants who slept four hours or less performed as if they were almost nine years older. Another surprising discovery was that sleep affected all adults equally. The amount of sleep associated with highly functional cognitive behavior was the same for everyone, regardless of age. Also, the harm associated with too little, or too much, sleep did not depend on the age of the participants. “We found that the best amount of sleep to keep your brain performing its best is 7 to 8 hours every night. We also found that people who slept more than that amount were equally harmed as those who slept too little.” says Conor Wild, Owen Lab Research Associate and the study's lead author. 语篇解读：本文是一篇说明文。一项世界最大的睡眠调查表明每晚睡眠时间在七到八个小时的人，认知能力比睡眠时间小于这一数量的人更强。 1．Where did the study take place? A．In a hospital.　　　　 B．In a university. C．In a lab. D．On the Internet. 解析：选D　细节理解题。根据第一段“The world's largest study about sleep ... participated in the online scientific investigation”可知，这项研究是在网上进行的。故选D。 2．What may affect t