单元质量评估(三)(时间：100分钟满分：120分)第一部分阅读理解(共两节，满分40分)第一节(共15小题；每小题2分，满分30分)阅读下列短文，从每题所给的四个选项(A、B、C和D)中，选出最佳选项。AA recent study talked about how less than 1% of people are “Elite Sleepers”，people who sleep for four hours and can function (正常作用) like someone who has slept for eight hours.Unfortunately，for the rest of us，we need seven to eight hours.From a company view，we found that seven to eight hours of sleep is the safe zone (区域)However，many enter the danger zone (too little sleep) of five to six hours at night.Is this the person you would want to do important work in your company? Even worse，is this the leader you would want to make decisions that influence the lives of so many others? Absolutely not.Safe zone of sleep: seven to eight hours.Danger zone: five to six hours.We need to close the difference，but how?Our SolutionSleep Class5 days a week；2：303：00 pm local time in New York，Boston，San Francisco and London；Prompt (准时地) start and end.It doesnt end at 3：05.It ends exactly at 3：00.And no one is allowed in at 2：31.You walk in，lie on a cushion (垫子) and are given only two rules：Dont move；Dont fall asleep.The class is called Yoga Nidra (Yoga Sleep)，which is a combination of yoga and meditation (冥想)In a calming voice an instructor is using a special method to have you think of sunsets，sunrises，a red ball，green grass，and thousands of images that are comfortable.Every instructor shows that one hour of Yoga Nidra means four hours of sleep.It is keeping you in a perfect state，that dreamlike state right before you fall asleep，for the entire time.Come and have a try if you want to enjoy a better life and centre better at work.【语篇解读】本文主要介绍了一个提高睡眠质量的课程。1According to the passage，we know “Elite Sleepers” _Aare very common in daily lifeBdo work better than ordinary peopleClie in the safe zoneDhave less sleeping time解析：细节理解题。根据第一段“A recent study talked about how less than 1% of people are Elite Sleepers，people who sleep for four hours and can function like someone who has slept for eight hours.”可知，Elite Sleepers每天睡眠4小时但能像每天睡眠8小时的人一样正常工作，故Elite Sleepers是指每天睡眠时间较少的人。答案：D2The two questions in Paragraph 2 are used to show_Athe people who need enough sleepBthe importance of the safe zoneCthe way to avoid getting little sleepDthe fact of not having enough sleep解析：推理判断题。根据第二段“However，many enter the danger zone (too little sleep) of five to six hours at night.”可知，许多人进入到每晚5到6小时睡眠时间的危险区域；以及“Absolutely not.”可知，问题的答案是否定的，可推知，本段的两个问题是为了显示睡眠时间在安全区域的重要性。答案：B3What can we learn about the Sleep Class?AIt has an exact start and end time.BIt is held every day.CIt has not strict rules.DIt asks people to walk much.解析：细节理解题。根据“Our SolutionSleep Class”部分的“Prompt start and end.It doesnt end at 3：05.It ends exactly at 3：00.And no one is allowed in at 2：31.”可知，睡眠课程有精确的起止时间。答案：A4What are you expected to do during the class?ASleep for half an hour.BLearn some sleep skills.CDo yoga while meditating.DTell the instructor what you see.解析：细节理解题。根据倒数第二段“The class is called Yoga Nidra (Yoga Sleep)，which is a combination of yoga and meditation.”可知，这个睡眠课程是瑜伽和冥想的结合体。答案：CBAre the marks on the Dighton Rock made by Americans? The Chinese? The Portuguese? The Japanese? All or none of the above? There have been kinds of answers about who carved (雕刻) the marks found on the 40ton stone in Massachusetts，the USA.But，no one has been able to say with certainty who first wrote on the rock，what they wanted to communicate，or why.The Dighton Rock is a 40ton stone that arrived to the Taunton River during the melting of the glaciers (冰川) during the last ice age.It is 5 feet (1.5 metres) high，9.5 feet (2.9 metres) wide，and 11 feet (3.4 metres) long.Although no one can say for certain who was/were the maker(s) of the marks on the stone，it has been agreed that they certainly are very old and very real.Many experts say that the mystery of the Dighton rock began in 1680，when Reverend John Danforth visited the rock.After seeing it，he decided that the carvings on it were made by Native Americans，and told the tale of a ship arriving，then the war between the locals and the newcomers.Danforth described the marks visible (可见的) on the top half of the stone (possibly because the rest was under tidal water (潮水) while he worked)The Dighton Rock remained in the Taunton River until 1963，when all 40 tons of it was pulled out of the river.While in the river，most of the rock was visible when the tidal water was low，however when the tidal water was high，the rock was nearly covered.Today the Dighton Rock stands inside a specially created museum，which could secure it to avoid graffiti(涂鸦)The number of tourists and interested experts seems to have fallen over the last few years，and the mystery of the marks on the Dighton Rock may never be solved.【语篇解读】本文主要介绍了关于戴顿石的未解之谜。5What does Paragraph 2 mainly talk about?AThe importance of the rock to A