1 . Happiness is not a warm phone, according to a new study exploring the link between young life satisfaction and screen time. The study was led by professor of psychology Jean M. Twenge at San Diego State University (SDSU).
To research this link, Twenge, along with colleagues Gabrielle Martin at SDSU and W. Keith Campbell at the University of Georgia, dealt with data from the Monitoring the Future (MtF) study, a nationally representative survey of more than a million U. S. 8th-, 10th-, and 12th-graders. The survey asked students questions about how often they spent time on their Phones, tablets and computers, as well as questions about their face-to-face social interactions and their overall happiness.
On average found that teens who spent more time in front of screen devices — playing computer games, using social media, texting and video chatting — were less happy than those who invested more time in non-screen activities like sports, reading newspapers and magazines, and face-to-face social interactions.
"The key to digital media use and happiness is limited use," Twenge said. "Aim to spend no more than two hours a day on digital media, and try to increase the amount of time you spend seeing friends face-to-face and exercising — two activities reliably linked to greater happiness."
Looking at historical trends from the same age groups since the 1990s, it's easy to find that the increase of screen devices over time happened at the same time as a general drop-off in reported happiness in U. S. teens. Specifically, young peopled life satisfaction and happiness declined sharply after 2012. That's the year when the percentage of Americans who owned a smartphone rose above 50 percent. By far the largest change in teens' lives between 2012 and 2016 was the increase in the amount of time they spent on digital media, and the following decline in in-person social activities and sleep.
1. Which method did Twenge's team use for the study?| A．Calculating students' happiness. |
| B．Asking students certain questions. |
| C．Analyzing data from a survey. |
| D．Doing experiments on screen time. |
| A．By making a comparison. |
| B．By giving an example. |
| C．By making an argument. |
| D．By introducing a concept. |
| A．To draw a conclusion from the study. |
| B．To offer some advice to the readers. |
| C．To prove social activities' importance. |
| D．To support the researchers' finding. |
| A．Quitting Phones Equals Happiness |
| B．Screen Time Should Be Banned |
| C．Teens' Lives Have Changed Sharply |
| D．Screen-addicted Teens Are Unhappier |
2 . 1. Scenic landscapes on stamps: A nine-day tour in the cities of Xuzhou,Suqian and Huai'an in northern Jiangsu province.
This route is associated with local culture, characteristics, and creativity. It offers a taste of the famous canal cities.
2.Life on the Grand Canal: A seven-day Jiangsu tour through the cities of Nanjing, Suqian, Huai'an,Yangzhou and Suzhou.
This route presents the most authentic, economic, cultural and entertainment-focused activities along the canal from both ancient and modern times.I allows visitors to ride in boats and observe local fishermen fishing.
3.Food,culture,leisure and health;Seven-day experience of local life in Zhenjiang Changzhou,Wuxi and Suzhou
To increase tourists’ interest in the traditional culture and crafts of Jiangsu, the route will include pottery,embroidery(刺绣), paper-cutting, cooking and other hands-on experiences. It includes scenic spots along the Beijing-Hangzhou Gran Canal, ancient water towns, historical streets and ancient fishing villages.Visitors can join in the recreational farmhouse experience and pick up both fruits and vegetables
4．A walk into history: Six-day tour in Xuzhou, Suqian,Huai’an,Yangzhou, Zhenjiang, Changzhou and Wuxi
The Beiing-Hangzhou Grand Canal runs through the entire province and has been a part of Jiangsu's culture for thousands of years. Inspired by the canal, the route includes historical cities Xuzhou, Suqian, Huai'an,Yangzhou along with Zheniang Changzhou and Wuxi.
1. Which of the following do the four travel routes share?| A．A time duration of less than a week. |
| B．Ancient towns in southern Jiangsu. |
| C．The Grand Canal. |
| D．The city of Suqian. |
| A．Route 1 | B．Route 2 | C．Route 3 | D．Route 4. |
| A．Rowing a boat. | B．Trying on paper-cutting. |
| C．Growing vegetables. | D．Fishing with local villagers. |
3 . It’s cold and dark outside, and your bed is so warm and comfortable. Going for a run seems like such a bad idea. But before you put your running shoes away, it might be worth giving that crazy idea a try.
According to The Huffington Post，an outdoor run in winter, instead of running on a treadmill (跑步机), burns more calories (卡路里) because the body is working hard to regulate (调节) its temperature. Besides, research shows that race times are faster in cold weather than in warmer temperatures—and quicker runs burn more calories. Similarly, cold weather also makes the heart work harder to distribute blood through the body, making that vital muscle even stronger.
Outdoor exercise also turns up your energy and rids you of the stress and depression that build up every day. The heat and humidity in summer can drag you down and tire you faster, but cold weather is refreshing. It adjusts you to your surroundings, making you feel energetic.
Of course, the threat of smog in some builtup areas is a further problem to winter exercise. Heart attacks, strokes and lung cancer are all dangers of running in smog. The combination (结合) of air pollution and exercise increases the potential problems. If you do choose to run outside on smoggy days, take a path in a park or residential area to avoid polluted air, and go early in the morning, before rush hour. But staying inside on smoggy days and waiting for the next clear day to run is best.
1. How does cold weather benefit runners compared with warm weather?| A．They can run more slowly. | B．They can take in more calories. |
| C．Their hearts can work harder. | D．Their body temperature can get lower. |
| A．It makes runners tired easily. | B．It builds up their energy quickly. |
| C．It lessens runners’ stress. | D．It causes heart attacks. |
| A．Stop driving cars. | B．Run late in the morning. |
| C．Do more exercise. | D．Avoid outdoor exercise. |
| A．We can refresh ourselves with a winter run. |
| B．We should go to run in a park everyday. |
| C．It’s much better to take outdoor exercise in summer. |
| D．We’d better run on treadmill to reduce stress. |
4 . Does your group or team need help? Try our challenge courses! We provide various approaches and opportunities for participants. More importantly，all activities are conducted in a safe environment!
•Our goals
◇ Bring participants together in a new environment where they’ll share a common experience while working together.
◇Encourage group trust. Participants must rely on others，completing the course as a group and not on an individual basis.
◇Overcome personal fears of lack of confidence.
◇Improve goals setting and problem solving skills.
◇Encourage safe，appropriate risks taking in a caring environment.
•Planning a program
A variety of challenge course programs can be designed. Working with your group，the center will design a program based on your group／team’s goals，schedule，group size and budget. The center offers team building programs for youth，adolescents and adults. High challenge courses are physically，mentally and emotionally challenging. An instructions and equipment are provided by the center.
•Requirements for high challenge courses
◇Climbing Tower—must be 9 years or older.
◇High Ropes—must be 12 years or older.
•Group pricing
◇Low Challenge Course—$150／per 15 people
◇High Challenge Course—$300／per 15 people
◇Both—$400／per 15 people
The two courses are annually inspected by a professional organization—Challenge Design Innovations. You can contact the center by phone 434-348-5444 or by email heathern@vt. edu to plan your next challenge course program！
1. The challenge course programs help participants__________.| A．realize their dreams | B．not fear to take risks |
| C．work together as a team | D．develop self-learning ability |
| A．It benefits especially those with special needs. |
| B．It designs different programs accordingly. |
| C．It is run by Challenge Design Innovations. |
| D．It is intended for teenagers. |
| A．300 dollars. | B．450 dollars. |
| C．600 dollars. | D．800 dollars. |
5 . Yoga is an ancient physical and spiritual practice originating in India. The word“yoga” comes from Sanskrit （梵文）and means to join or to unite, symbolizing the union of body and mind. Today it is practiced in various forms around the world and continues to grow in popularity. Recognizing its universal appeal, the United Nations declared 21 June as the International Day of Yoga in 2014 to raise awareness worldwide of the many benefits of practicing yoga.
Yoga is an invaluable gift from an ancient tradition. It’s not just about exercise but a way to discover the sense of oneness with yourself nature and the world. There is no written record of who invented yoga. Yoga practitioners （从业者）passed down the principles to their students. The earliest written record of yoga is generally believed to have been written by Patanjali, an Indian master who lived somewhere between 2,000 and 2,500 years ago.
Various yoga types give you multiple choices. Hatha yoga is the most widely practiced type and is excellent for beginners. It is gentle with slow and smooth movements. Kundalini yoga combines a singing session besides body and mental control. Bikram yoga is practiced in a heated room. It is to loosen muscles and to sweat to clean the body and remove symptoms of disease and pain. Ashtanga yoga is taught as a difficult workout where you move quickly from one gesture to another to build strength and patience.
In recent years, the World Health Organization has urged countries to help their citizens reduce physical inactivity, which is among the top ten leading causes of death worldwide, and a key risk factor for non-communicable diseases, such as cancer and diabetes. Yoga is a proper exercise. It is known for its ability to ease stress and anxiety. It may also help reduce several risk factors for heart diseases and promote a better sleep.
1. Why did the United Nations set the International Day of Yoga?| A．To promote the research into Sanskrit. |
| B．To help people know more about India. |
| C．To popularize Yoga practice worldwide. |
| D．To give a declaration on cultural diversity. |
| A．The principles of yoga. | B．The history of yoga. |
| C．The benefits of yoga. | D．An Indian yoga master. |
| A．Hatha yoga. | B．Kundalini yoga. |
| C．Bikram yoga. | D．Ashtanga yoga. |
| A．Physical inactivity causes deadly diseases・ |
| B．Yoga can help prevent communicable diseases. |
| C．Little or no exercise puts people’s health at risk. |
| D．Yoga can be a cure for many kinds of diseases. |
In discussion of technological changes, the Internet gets most of the attention these days.But the change in medicine can be the real technological event of our times. How long can humans live? Human brains were known to decide the final death.Cells(细胞) are the basic units of all living things, and until recently, scientists were sure that the life of cells could not go much beyond 120 years because the basic materials of cells, such as those of brain cells, would not last forever.But the upper limits will be broken by new medicine. Sometime between 2050 and 2100, medicine will have advanced to the point at which every 10 years or so, people will be able to take medicine to repair their organs(器官). The medicine, made up of the basic building materials of life, will build new brain cells, heart cells, and so on—in much the same way our bodies make new skin cells to take the place of old ones.
It is exciting to imagine that the advance in technology may be changing the most basic condition of human existence, but many technical problems still must be cleared up on the way to this wonderful future.
1. According to the passage,human death is now mainly caused by _______.
| A．diseases and aging | B．accidents and war |
| C．accidents and aging | D．heart disease and war |
| A．medicine | B．the Internet |
| C．brain cells | D．human organs |
| A．heart disease will be far away from us |
| B．human brains can decide the final death |
| C．the basic materials of cells will last forever |
| D．human organs can be repaired by new medicine |
| A．human life will not last more than 120 years in the future |
| B．humans have to take medicine to build new skin cells now |
| C．much needs to be done before humans can have a longer life |
| D．we have already solved the technical problems in building new cells |
