2017版高考英语外研版一轮复习跟踪检测：必修2 Module1《Our Body and Healthy Habits》（含解析）

　　必修二

　　Module 1

　　阅读理解提速练——练速度

　　(限时：20分钟)

　　A

　　(2016·衡水一中高考模拟)It is 7 am and the alarm is going off. You know you have to be out of bed to catch the bus. But the urge to bury yourself in the bed is ever so strong.

　　Sounds familiar? Why is it that teens find it difficult to get themselves out of bed in time every morning or stay sharp and focused during the first couple of hours of school?

　　During adolescence, the body goes through many changes and these include a shift in sleep patterns. Researchers from MIT have been tracking the body's need for sleep in teenagers. They found that though adolescents need as much as 9.5 hours of sleep a day, they get to bed later and later with each passing year. In fact, the sleep cycle shifts later by as much as 12 to 18 minutes each year between the ages of 10 and 20! So by the time a 10­year­old who sleeps at 8 pm grows to be 17 or 18, his body naturally wants to stay up till 10：30 pm or 11 pm.

　　According to researchers, this is because of a hormone called melatonin (褪黑激素) that is secreted (分泌) by the pineal gland — a tiny structure deep inside the brain. Melatonin regulates the body's natural day­night rhythms. It causes a person to become sleepy by lowering his body's core temperature. In teens, melatonin is secreted much later in the evening and continues to increase throughout the night. This makes it difficult for teens to fall asleep earlier as they did in their younger years. Likewise, the effect of melatonin continues until much later in the morning, making it hard for them to wake up early.

　　A study found that at least one in four teens is tired and falls asleep in school at least once a week. During sleep, important body functions and brain activities happen. So how can teenagers get their sleep enough? The American Academy of Pediatrics (AAP) recommends that middle and high schools should start later — not before 8：30 am. This should give teens some more time to sleep at night.

　　语篇解读：本文是一篇说明文。早睡才能早起，晚睡会导致早上赖床，睡觉周期的改变实际上受制于大脑中一种被称为褪黑激素的荷尔蒙。

　　1．From Paragraph 2, we can learn that if you sleep late, the next day you should ________.

　　A．stay sharpB．skip breakfast

　　C．get up late

　　D．stay up late

　　解析：选C　细节理解题。文章第一段提到为什么孩子们早上不愿起床，第二段紧接着分析原因，说明孩子们睡觉晚是他们早上赖床的原因，故C项正确。

　　2．What does the underlined word “this” in Paragraph 3 refer to?

　　A．The students want to stay up.

　　B．The shifts of the sleep cycle.

　　C．The pineal gland secretes melatonin.

　　D．The adolescents sleep late.

　　解析：选B　代词指代题。第二段提到了睡觉周期的改变，第三段紧接着解释造成这一现象的原因，因此this指睡觉周期的改变，故B项正确。

　　3．The teens go to sleep later than before because ________.

　　A．melatonin is secreted much later

　　B．melatonin regulates the sleep time

　　C．they sleep a lot in the daytime

　　D．they need to finish their homework

　　解析：选A　细节理解题。根据文章第三段中的“In teens, melatonin is secreted much later in the evening and continues to increase throughout the night.”可知，孩子们睡觉晚是由褪黑激素分泌晚造成的，故A项正确。

　　4．According to AAP's recommendation, middle and high schools should ________.

　　A．let teens sleep in the day

　　B．let the students be active

　　C．delay the start time

　　D．start later at 8 am

　　解析：选C　细节理解题。根据文章最后一段的倒数第二句话可知，APP建议初中和高中上午上课的时间应该推迟，故C项正确。

　　B

　　(2016·沈阳市高三质检)

　　Big messaging apps abroad

　　While WeChat is China's biggest mobile messaging app (应用软件), there are many equivalent apps in other countries that offer similar features.

　　WhatsApp (US)

　　Users: more than 300 million

　　Platforms: Android, iOS, Windows Phone, BlackBerry

　　Features: text chats, push­to­talk, file sharing, location sharing

　　With more than 300 million active users, WhatsApp is one of WeChat's biggest competitors. Developed by two ex­Yahoo employees in 2009, WhatsApp originally focused on text chats, but on Aug. 6 it also started push­to­talk service. It's noted for its accessibility, ease of use and the absence (没有) of adverts. The service is free for the first year, after which D|S0.99 (6.06 yuan) is charged for a one­year subscription.

　　Kakao Talk (South Korea)

　　Users: more than 100 million

　　Platforms: Android, iOS, Windows Phone, BlackBerry and Bada (an operating system developed by Samsung)

　　Features: text chats, group chats, push­to­talk, group calls, file sharing

　　With more than 100 million users in more than 230 countries, Kakao Talk is a multi­platform (多平台) texting application that allows users to send and receive messages for free. With Kakao Talk, users can message each other one­on­one or in group chats with unlimited numbers of friends. You can also choose from more than 250 animated emoticons and share them with friends.

　　Line (Japan)

　　Users: more than 200 million

　　Platforms: Android, iOS, Windows Phone, BlackBerry and PC

　　Features: text chats, group chats, push­to­talk, file sharing, location sharing, gaming, stickers

　　Line tops the list of the most downloaded free apps in 52 countries. Apart from text and voice messaging, Line provides its users with more than 250 original stickers and emoticons to buy from its own shop. In the first quarter of 2017 alone, it made D|S17 million just from stickers. The popular app also allows friends to battle each other in the Line games.

　　语篇解读：本文是一篇应用文。主要介绍了国外几个较大的移动交流应用软件。

　　5．The first paragraph of the passage is used to ________.

　　A．introduce the most popular mobile messaging apps in China

　　B．talk about new features in the latest mobile messaging apps

　　C．draw readers' attention to various popular mobile messaging apps

　　D．explain how mobile messaging apps have become so popular

　　解析：选C　推理判断题。根据第一段的内容可推知，第一段在文章中起导入作用，以引起读者对各种移动交流应用软件的关注，故选C项。

　　6．Compared with the other two apps, which of the following features makes Line stand out?

　　A．Group mobile games.

　　B．Free stickers and emoticons.

　　C．Free download of the app.

　　D．Text and group chats.

　　解析：选A　细节理解题。根据文章对三个不同移动交流应用软件特色的介绍可知，日本的Line有gaming和stickers这两个特别的功能，结合选项可知，故选A项。

　　7．One of the popular features of WhatsApp is that users ________.

　　A．can send and receive messages for free

　　B．can enjoy live video chats within groups

　　C．don't need to worry about unwanted ads

　　D．regularly get free stickers and emoticons

　　解析：选C　细节理解题。根据WhatsApp (US)部分的“It's noted for its accessibility, ease of use and the absence (没有) of adverts.”可知，WhatsApp的一个受人欢迎的特点就是没有广告，故选C项。

　　C

　　(2016·石家庄市教学质量检测)Pilates, yoga and the running machine get all the attention when it comes to popular ways to stay healthy.

　　There is, however, a more humble exercise that might not be so attractive, but has all the benefits — walking.

　　Certified fitness professional Jolynn Jaekel explains, “What I love about walking is that anyone can do it at any age and any fitness level. Plus, it is good for your heart, your head and your wallet.”

　　A recent report details the health benefits of walking. The report found that walking regularly to fulfill the 150 minutes of moderate physical exercise every week, recommended by the UK's chief medical officer, could save 37,000 lives each year. Scientists at the Lawrence Berkeley National Laboratory in California found that quick walking reduces the risk of heart disease more effectively than running. They observed participants aged between 18 and 80 over a six­year period and found that walking reduced the risk of heart disease by 9.3%, while running reduced it by 4.5%. And there is even more good news: 30 minutes of quick walking over five days could help you sleep easily, according to research by Oregon State University. The study by the university showed that walking helped participants sleep better and feel more alert during the day.

　　The sooner you get started, the sooner you'll notice the differences in your mind and body. So, go out for your 30­minute walk in a nearby park or green space.

　　语篇解读：本文是一篇说明文。主要介绍了健康生活方式中的最简单有效的方式——步行。

　　8．The underlined word “humble” in the first paragraph probably means “________”．

　　A．plainB．relaxing

　　C．popular

　　D．active

　　解析：选A　词义猜测题。根据第一段可知，当提到保持健康的方式时首先可以想到普拉提、瑜伽和跑步机。然而，有一种不太引人注目的简单运动却让人受益匪浅，那就是步行。由此可推知，画线词和“plain”意义相近。故A项正确。

　　9．What does Jolynn Jaekel think of walking?

　　A．It's loved by people of all ages.

　　B．It's much healthier than running.

　　C．It's a money­saving physical exercise.

　　D．It's becoming more and more popular.

　　解析：选C　细节理解题。根据第二段中的“What I love about walking ... your head and your wallet.”可知，步行对人的心脏和大脑都有好处并且可以省钱。故C项正确。

　　10．What did scientists at the Lawrence Berkeley National Laboratory find?

　　A．Walking helps people with sleep problems.

　　B．Walking contributes to curing heart disease.

　　C．Walking 150 minutes per week can save lives.

　　D．Walking is better than running in some cases.

　　解析：选D　细节理解题。根据第三段第三句中的“found that quick walking reduces the risk of heart disease more effectively than running”以及下文将步行和跑步从几个方面进行的对比来看，前者优于后者。故D项正确。

　　11．In which section of a newspaper can we read this text?

　　A．Comment.

　　B．Lifestyle.

　　C．Education.

　　D．Science.

　　解析：选B　推理判断题。纵观全文可知，本文主要介绍了健康生活方式中的最简单有效的方式——步行。由此可推知，可从报纸上介绍生活方式的版块读到该文章。故B项正确。