11．　　A college teacher once gave a lively class to his students.
　　He began by holding up a glass (1)       some water in it. He held it up for all to see, and asked the students, "(2)       do you think this glass weighs?"
　　"50 g!" "100 g!" "125 g!" the students answered.
　　"I really don't know unless I weigh it," said the teacher, "but my (3)       is what would happen if I held it up like this for a few minutes?"
　　"Nothing," the students said.
　　"OK. What would happen if I held it up like this for an hour?" the teacher asked.
　　"Your arm would begin to (4)      ," said one of the students.
　　"You are right. Now, what would happen if I held it up for a (5)      ?"
　　"You might have muscles (肌肉) stress. You could (6)       move the arm," said another one.
　　"You might have no (7)       in the arm, or paralysis (瘫痪)," said a naughty student, "You (8)       go to the hospital for sure!"
　　"Very good. But during this period, did the weight of the glass (9)      ?" asked the teacher.
　　"No," the students said.
　　"Then what (10)       the arm ache and the muscles stress?"
　　The students were (11)      .
　　"No one knows?" the teacher asked, "Well, can you tell me how to (12)       it?"
　　"Put the glass down!" said one of the students.
　　"Exactly!" said the teacher. "The problems of life are something like this. Think of them for a few minutes in your (13)       and you seem OK. Think of them for a long time and you begin to hurt. Think of them even longer and you will not be able to do anything. It's important to think of the challenges in your life, (14)       it's even more important to 'put them down' at the end of every day before you go to sleep. That way, you are (15)       — you wake up every day fresh and strong and can solve any problem that comes your way!"

12．　　The Clark Library is a welcoming place for students, providing them with computers and books and spaces to study and work together. The main floor Service Desk is a central place to get help.
Hours and Contact Information
　　Regular Fall and Spring Hours
　　Monday - Thursday 7:00 a.m. — 2:00 a.m.
　　Friday 7:00 a.m. — 9:00 p.m.
　　Saturday 10:00 a.m. — 9:00 p.m.
　　Sunday 10:00 a.m. — 2:00 p.m.
Contact Us
　　Service Desk: (503) 943-7111 or (800) 841-8261
　　Research Desk: (503) 943-7788, 24/7, Library Chat
　　Digital Lab Desk: (503)943-7796
　　Website: http://library.up.edu
　　Fax: (503) 943-7491
　　Services and Resources
　　Study and Learning Spaces: The main and upper floors are areas with a variety of seating options. The lower floor is the Quiet Floor for focused study. There are 20 group study rooms that can be reserved online.
　　Technology: The main floor lab has 50 Windows computers, along with printers and copier/scanners. The Digital Lab on the upper floor has 16 Mac computers, scanners, a large format printer, a 3D printer, plus equipment that can be borrowed. The main floor Service Desk also checks out laptops and chargers (充电器).

13．　　Monty Roberts was the son of a horse trainer who would go from farm to farm and ranch (大牧场) to ranch, training horses. One day, while he was still in high school, Roberts was asked to write something about what he wanted to be in the future.
　　That night, he wrote a seven-page paper describing his goal of someday owning a horse ranch. He wrote about his dream in great detail and even drew pictures of the ranch.
　　He put a great deal of heart into the project and the next day he handed it in to his teacher. Two days later, he got his paper back. On the front page was a large red F with a note that read, "See me after class."
　　Confused, Roberts went to see his teacher after class and asked, "Why did I receive an F?"
　　The teacher said, "This is an unrealistic dream for a young boy like you. You have no money. You come from a poor family. You have no resources. Buying a horse ranch takes a lot of money. There's no way you could ever do it. Change it."
　　Roberts went home and thought long and hard. One week later, the boy turned in the same paper, making no changes at all.
　　He said, "You can keep the F and I'll keep my dream."
　　After that, Roberts worked very hard. Little by little, and many years later he finally owned a 200-acre horse ranch. He shared his experience with his friends. "I could succeed because I had enough gumption (勇气) not to give up on my dream. Don't let anyone steal your dreams. Follow your heart, no matter what."

14．　　In 2017, the BBC documentary (纪录片) Spy in the Wild (《荒野间谍》) gave us a chance to look much more closely into the world of animals through the eyes of "animal spies". These spies are actually robots with cameras that look like real animals. They "live" together with animals in order to record (记录) their lives.
　　Returning for its second season, Spy in the Wild follows the tradition of the first season while introducing new cameras and robots. With the help of these devices (设备), a spy turtle can lay robot eggs, a spy squirrel (松鼠) can gather robot nuts (坚果), and monkeys can play with a spy snowball.
　　In the new season, more than 50 spy robots are sent to study animals in all kinds of environments, from under the Pacific Ocean to the harsh (严酷的) Arctic cold. But these spies don't just record everyday goings-on — they study the emotional (情感的) connections that are shared between animals first-hand. For example, a spy penguin was accepted as part of a group in South Georgia Island. It watched on as penguin parents pushed their way through a barrier (障碍) of 6,000 elephant seals (海象) in order to make it home to feed their chicks.
　　"Quite accidentally, our spy creature is at the center of something special, capturing (捕捉到) emotions that have seldom been watched," series narrator (旁白) David Tennant told CNET.
　　Speaking to PBS, director John Downer said, "The whole point is …trying to get closer than we ever have before to capture those elusive (难以得到的) moments when they start to show the kind of emotions we have."

15．　　Here are some good suggestions for you to learn English well.
　　(1)       Even if there is no one around to speak to, talk to yourself. Name things as you pass them. This simple language learning skill will help you understand these everyday words.
　　Talk to your friends you know in English. (2)       They may understand you even if they don't speak it. Simple expressions like "Good morning!" in English will make those sentences more natural to you. Your friends may even start to learn a few sentences as well.
　　(3)       You'll hear the language used in a real situation and this will help you judge (判断) the pronunciation even better. You will also come to further understand and better enjoy the culture behind the language.
　　The easiest language learning skill is to try! Don't be afraid to make mistakes when you speak and write English. In fact, you will learn as much from your mistakes as you will learn from your success. (4)      .
　　It's a good way to find an English club. It's helpful to speak with other people who are still going through the course of learning English. (5)      .

16．　　Our neighborhood used to be very quiet. (1)H            , these days, strange things are happening in our neighborhood and everyone is unhappy. Dick, the local school teacher is very (2)w             about it. When he was (3)i             by the local newspaper, he said, "Every night we hear the strange (4)n             outside our window. My wife thinks that it could be an animal, but my friends and I think it must be children having fun. My parents called the (5)p            , but they couldn't find (6)a             strange. They thought it might be the wind. I don't think so!"
　　Dick's next-door neighbor Kyle is unhappy, too. "At first, I thought it might be a cat, (7)b             even when I can't see a cat, I (8)s             hear the noises outside." Everyone in our neighborhood is worried, and everyone has their own (9)o            . There must be something (10)v             the homes in our neighborhood, but what could it be?

17．冬春交替之际，气温变化明显，也是疾病的多发季节，尤其是流感等。但是，只要提前做好预防，就可以在很大程度上避免疾病的侵扰。正如一些医生所说，大家都应当重视自己的健康，不必去惧怕疾病，而应该积极去预防，请根据以下提示，写一篇如何预防疾病的英语短文。
要点提示：
1. 养成良好的生活习惯；
2. 有积极的心态；
3. 劳逸结合。
写作要求：
1. 词数不少于90词，可适当发挥；
2. 行文流畅，条理清晰，用词准确，不要逐句翻译；
3. 短文中不得出现真实的姓名及校名。
Live a healthy life
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