2 . Physical education, or PE, isn’t required for all high school students. In some schools, it isn’t offered for some different reasons. But should high school students have physical education? The answer is certainly “yes”.

Today many people don’t do sports. But as is known to all. doing sports is very important for an adult. Teaching teens the importance of a healthy lifestyle and making fitness plans now can help teens put exercise in the first place as an adult.

High school isn’t that easy. Many students are under a lot of stress. Stress can be harmful to a student’s studies and life. Doing sports can help them deal with stress better, helping them live a happier life at school.

The American Heart Association says that 10 million kids and teens suffer from obesity (肥胖). Teens should get 60 minutes of physical activity per day to control their weight and to help their bones get stronger. The increase in activities that don’t get teens to move around, such as computer games, means many teens don’t get their required exercise. PE classes act as a public health measure (措施) to encourage physical activities and help teens have healthy weights.

Not doing sports increases teens’ hazard of developing many diseases. An active lifestyle offers a good way of protection from these health problems. As much as 75 percent of health-care spending goes toward treating medical conditions that can be prevented by lifestyle changes, according to the American College of Sports Medicine.

According to the President’s Council on Fitness, Sports and Nutrition (PCFSN), students who performed five hours of physical activities each week improved their academic (学业的) performance. Students from programs with no physical activity, who used the extra time for classroom study, did not perform better on tests than those who gave up some study time in support of physical education.

1. According to Paragraph 2, what does physical education in high school mean?

A．Making teens attach importance to ęxercise later.

B．Removing the stress faced by teens at school.

C．Getting teens to encourage adults to exercise.

D．Helping teens learn to make good plans

2. What does the underlined word “hazard” in Paragraph 5 mean?

A．Happiness.

B．Risk.

C．Safety.

D．Sadness.

3. According to the PCFSN, doing sport          .

A．means making students choose between sports and studies

B．helps students make good use of all their time

C．means students adjust to their studies better

D．helps students do better in their studies

4. What is the text mainly about?

A．Why high school students should receive physical education.

B．Why some schools consider physical education important.

C．How schools can help students love doing sports.

D．How high school students can live a better life.

3 . Learning to say “yes, and”

When I first heard about the improvisation (即兴交流) class, I was hesitating. As a quiet and shy girl, I feared improvising in front of strangers. However, I knew I wanted to work as a science communicator after finishing my Ph.D., so it seemed like a perfect chance to learn how to speak and communicate with others effectively. I signed up, knowing the experience would give me help.

During our first class, we learned an important concept of improvisation: “yes, and.” It means that, as improvisers, we’d better accept what fellow performers say. If someone says that rhinos (犀牛) are librarians, for example, then rhinos are librarians. We do not question the logic; we say “yes” and then continue with the scene as if nothing is wrong.

The first few scenes were hard, but as weeks turned into months, I became more comfortable and even started to enjoy our classes. I became better at listening, relating to my conversation partners, and communicating clearly in the moment. Once when I was giving a presentation about my science, an audience member surprised me with a question that didn’t grow out of the information I’d presented. Instead of getting confused and nervous, I took the “yes, and” approach—accepting the question and letting my mind focus on why it was asked. That helped me find an appropriate answer. I got pretty excited about it.

The benefits of improvisation go beyond communication. Before attending the class, I would get stuck when my experiments produced unexpected data, thinking that I had made a mistake. But now, instead of getting discouraged, I will stay open to the possibility that the results are real, keep exploring the data and end up identifying a new type of cell—one that isn’t behaving as expected.

I think all scientists can benefit from this lesson. If the data say rhinos are librarians, then it’s worth finding out whether rhinos are, in fact, librarians. As scientists, our job isn’t to challenge data that support, a preconceived story, but to say “yes, and.”

1. Why did the author attend the improvisation class?

A．To get a different experience.

B．To finish her Ph.D. at university.

C．To give up her job as a science communicator.

D．To improve her speaking and communicating ability.

2. What was the author’s change after attending the improvisation class?

A．She formed her own idea quickly.

B．She came up with lots of creative responses.

C．She paid more attention to the logic of answers.

D．She became a good listener before giving an opinion.

3. The author mentions applying the “yes, and” approach to her scientific experiments to ________.

A．explain the process of using the method

B．prove the benefits of the improvisation class

C．share her own research experiences with readers

D．attract fellow scientists to attend the improvisation class

4. What can be inferred about scientists from the last paragraph?

A．They should attend the improvisation class.

B．They should question all preconceived ideas.

C．They should carry on research by admitting earlier data.

D．They should try to improve their academic knowledge.

4 . Wouldn’t it be wonderful to travel to a foreign country without having to worry about the headache of communicating in a different language?

In a recent Wall Street Journal article, technology policy expert Alec Ross argued that, within ten years or so, we would be able to communicate with one another through small earpieces with built-in microphones. That’s because technological progress is extremely fast. It’s only a matter of time. Such is the belief among certain parents that the technology is imminent and they’re wondering if their kids should learn a second language.

It’s true that an increase in the quantity and accuracy of the data loaded into computers will make them cleverer at translating “Noes Bueno dormer mucho” into “It’s not good to sleep too much”. Replacing a word with its equivalent (对等词) in the target language is actually the easy part of a translator’s job. But even this seems to be a difficult job for computers.

It’s so hard for computers because translation doesn’t — or shouldn’t — involve simply translating words, sentences or paragraphs. Rather, it’s about translating meaning. And in order to infer meaning from a specific expression, people need to understand a lot of information all at once. Think about all the related clues that help us understand what someone is trying to say: volume, gesture, situations, and even your culture. All are likely to convey as much meaning as the words you use.

Therefore, we should doubt a machine that can’t understand our world like we do. If people from different cultures can upset each other without realizing it, how can we expect a machine to do better? Unless engineers actually find a way to breathe a soul into a computer, undoubtedly when it comes to conveying and interpreting meaning using a natural language, a machine will never fully take our place.

1. What does the underlined word “imminent” in Paragraph 2 probably mean?

A．Ready.

B．Confusing.

C．Unpractical.

D．Coming.

2. Why is it hard for computers to replace a word with its equivalent?

A．The real meaning of words can vary.

B．Their data is not rich enough.

C．Their accuracy needs big improvement.

D．A man’s soul hasn’t been breathed in them.

3. What view does the author hold about translation?

A．Proper translation can be difficult for computers.

B．Slight differences doesn’t matter in translation.

C．Machines will translate our world properly.

D．Cultures need more attention than words used.

4. What is the best title for the text?

A．An Expert’s Prediction.	B．Travel without Headache.
C．The Pleasure of Translation.	D．Will the Language Barrier (障碍) Actually Fall?

5 . Do you shop for groceries online and have them delivered to your door? Well, this might be just the start of a digital revolution in food. How about tattooed (刺花的) fruit, ice cubes which send text messages, and wine from the bottom of the ocean? All these things are on the _______ according to global innovation research firm Stylus.

They say stickers and wasteful packaging on fruit could be _______ by eatable tattos. These would be _______ “directly to the skin of the fruit without _______ damaging skin cells”, according to Stylus’s senior vice-president of content, Tessa Mansfield.

Our _______ are changing rapidly too, and some companies are cooking up menu of technological advances. _______, there’s a smart knife which can _______ the freshness of food and any bacteria present as it is being used.

Innovative ways to _______ what we consume are always being _______. Mandy Saven, Stylus’s head of food, beverage and hospitality says new digital ice cubes will send a text message to a friend if you drink too much alcohol.

Indeed, some companies are helping consumers stay ________ and make environmentally-friendly choices. Dutch firm Bilder and De Clerca sells food organized by recipe, which helps customers avoiding ________ by buying too much.

This makes the retailer more than just a supplier of food — it becomes “kind of food ________ to a shopper.” says Tessa Mansfield.

For the discerning (有眼力的) drinker, the future holds another new experience. How would you like to try “ocean-aged wine”? This is the wine which has been sunk to the bottom of the ocean to help it ________ before you enjoy it.

I find all these ________ exciting. What about you? Are you happy to ________ the new frontier of food?

1.

A．rise

B．contrary

C．horizon

D．whole

2.

A．replaced

B．exchanged

C．covered

D．understood

3.

A．connected

B．contributed

C．imported

D．applied

4.

A．heavily

B．actually

C．purposefully

D．weakly

5.

A．situations

B．groceries

C．services

D．kitchens

6.

A．In short

B．At first

C．For instance

D．After all

7.

A．enhance

B．add

C．analyze

D．locate

8.

A．search

B．monitor

C．elect

D．limit

9.

A．developed

B．tracked

C．tempted

D．followed

10.

A．comfortable

B．smart

C．holy

D．healthy

11.

A．consumption

B．waste

C．cost

D．bargain

12.

A．consultant

B．customer

C．designer

D．guard

13.

A．delicate

B．dizzy

C．mature

D．delicious

14.

A．innovations

B．goals

C．behaviors

D．consumers

15.

A．move about

B．step across

C．join in

D．get on

6 . A very dangerous situation happened in California last week. More than 12 wildfires broke out in the state. Most of them began on October 8, in Northern California. They grew rapidly. The fires were made bigger by winds of up to 50 miles per hour and dry air in the area.

At least 20 people have been killed, the state government said. About 200 have been injured. At least 3,500 homes and businesses have been destroyed. About 50,000 people have been required to escape. Many left in a hurry, without time to take their personal things. “All the good stuff(东西)—I’m never going to see it again,” Jeff Okrepkie said. He escaped from his Santa Rosa home. It was destroyed soon after he left.

The fires burned through parts of eight counties(郡，县). These include Sonoma and Napa. The areas are important to California’s economy(经济). They are home to many of the state’s vineyards(葡萄园) and wineries(酿酒厂). In 2016, California’s wineries made more than $57 billion.

October is when wildfires usually produce the most ruins in California. But it is unusual for so many fires to start at once. Up to now, the government has not given a cause for any of the fires, many of which were still burning.

1. Why did the fires grow quickly?

A．Most of the fires began in October.	B．12 fires happened at the same time.
C．The state government didn’t do anything.	D．High-speed wind and dry air.

2. How many people have to leave their homes?

A．50,000.

B．200.

C．3,500.

D．20.

3. What is the biggest loss for California’ s economy?

A．Homes have been destroyed.	B．Wineries have been burned.
C．People have to leave their homes.	D．Many people have been injured.

4. What is the cause of the fires?

A．The high-speed wind and dry air.	B．Many fires started at once.
C．October produces the most ruins.	D．The cause is not explained.

7 . Running is often tiring and a lot of hard work, but nothing beats the feeling you get after finishing a long workout around the track.

But while it’s long been believed that endorphins (内啡肽) —chemicals in the body that cause happiness—are behind the so-called “runner’s high”, a study suggested that there may be more to this phenomenon than we previously knew.

According to a recent study published by a group of scientists from several German universities, a group of chemicals called endocannabinoids (内源性大麻素) may actually be responsible for this familiar great feeling.

To test this theory, the scientists turned to mice. Both mice and humans release high levels of endorphins and endocannabinoids after exercise. After exercising on running wheels, the mice seemed happy and relaxed and displayed no signs of anxiety. But after being given a drug to block their endorphins, the mice’s behavior didn’t seem to change. However, when their endocannabinoids were blocked with a different drug, their runners’ high symptoms seemed to fade.

“The long-held notion of endorphins being responsible for the runner’s high is false. Endorphins are effective pain relievers, but only when it comes to the pain in your body and muscles you feel after working out,” Patrick Lucas Austin wrote on science blog Lifchacker.

Similar studies are yet to be carried out on humans, but it’s already known that exercise is a highly effective way to get rid of stress or anxiety. The UK’s National Health Service even prescribes (开药 方) exercise to patients who are suffering from depression. “Being depressed can leave you feeling low in energy, which might put you off being more active. Regular exercise can improve your mood if you have depression, and its especially useful for people with mild to moderate (中等的) depression,” it wrote on its website.

It seems like nothing can beat that feeling we get after a good workout, even if we don’t fully understand where it comes from. At least if we’re feeling down, we know that all we have to do is to put on our running shoes.

1. What did scientists from German universities recently discover?

A．Working out is a highly effective way to treat depression.

B．The runner’s high could be caused by endocannabinoids.

C．Endorphins may contribute to one’s high spirits after running.

D．The level of endorphins and endocannabinoids could affect one’s mood.

2. Why did the scientists give mice drugs in their experiment?

A．To find what reduces the runner’s high symptoms.

B．To see the specific symptoms of the runner’s high.

C．To identify what is responsible for the runner’s high.

D．To test what influences the level of endocannabinoids released.

3. What does the underlined word “notion” mean?

A．Effect.

B．Goal.

C．Opinion.

D．Question

4. What can we know about regular workouts according to the UK’s National Health Service?

A．They can help ease depression symptoms.

B．They are the best way to treat depression.

C．They only work for those with serious depression.

D．They can help people completely recover from depression.

8 . After years of heated debate, gray wolves were reintroduced to Yellowstone National Park. Fourteen wolves were caught in Canada and transported to the park. By last year, the Yellowstone wolf population had grown to more than 170 wolves.

Gray wolves once were seen here and there in the Yellowstone area and much of the continental United States, but they were gradually displaced by human development. By the 1920s, wolves had practically disappeared from the Yellowstone area. They went farther north into the deep forests of Canada, where there were fewer humans around.

The disappearance of the wolves had many unexpected results. Deer and elk populations — major food sources (来源) for the wolf — grew rapidly. These animals consumed large amounts of vegetation (植被), which reduced plant diversity in the park. In the absence of wolves, coyote populations also grew quickly. The coyotes killed a large percentage of the park’s red foxes, and completely drove away the park’s beavers.

As early as 1966, biologists asked the government to consider reintroducing wolves to Yellowstone Park. They hoped that wolves would be able to control the elk and coyote problems. Many farmers opposed the plan because they feared that wolves would kill their farm animals or pets.

The government spent nearly 30 years coming up with a plan to reintroduce the wolvers. The U.S. Fish and Wildlife Service carefully monitors and manages the wolf packs in Yellowstone. Today, the debate continues over how well the gray wolf is fitting in at Yellowstone. Elk, deer, and coyote populations are down, while beavers and red foxes have made a comeback. The Yellowstone wolf project has been a valuable experiment to help biologists decide whether to reintroduce wolves to other parts of the country as well.

1. What is the text mainly about?

A．Wildlife research in the United States.

B．Plant diversity in the Yellowstone area.

C．The conflict between farmers and gray wolves.

D．The reintroduction of wolves to Yellowstone Park.

2. What did the disappearance of gray wolves bring about?

A．Damage to local ecology.

B．Preservation of vegetation.

C．A decline in the park’s income.

D．An increase in the variety of animals.

3. What is the author’s attitude towards the Yellowstone wolf project?

A．Doubtful.

B．Uncaring.

C．Positive.

D．Disapproving.

9 . Reading can be a social activity. Think of the people who belong to book groups. They choose books to read and then meet to discuss them. Now, the website Book Crossing.com turns the page on the traditional idea of a book group.

Members go on the site and register (登记) the books they own and would like to share. Book Crossing provides an identification number (识别码) to stick inside the book. Then the person leaves it in a public place, hoping that the book will have an adventure, traveling far and wide with each new reader who finds it.

Bruce Pederson, the managing director of Book Crossing, says, “The two things that change your life are the people you meet and books you read. Book Crossing combines both.”

Members leave books on park benches and buses, in train stations and coffee shops. Whoever finds their book will go to the site and record where they found it.

People who find a book can also leave a journal entry describing what they thought of it. E— mails are then sent to the BookCrossers to keep them updated about where their books have been found. Bruce Pederson says the idea is for people not to be selfish by keeping a book to gather dust on a shelf at home.

Book Crossing is part of a trend (趋势) among people who want to get back to the “real” and not the virtual (虚拟).The site now has more than one million members in more than one hundred thirty—five countries.

1. Why does the author mention book groups in the first paragraph?

A．To explain what they are.	B．To introduce Book Crossing.
C．To stress the importance of reading.	D．To encourage readers to share their ideas.

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

A．An adventure.	B．A public place.
C．The book.	D．The identification number.

3. What will a Book Crosser do with a book after reading it?

A．Keep it safe in his bookcase.	B．Mail it back to its owner.
C．Meet other readers to discuss it.	D．Pass it on to another reader.

4. What is the best title for the text?

A．Online Reading: A Virtual Tour	B．Electronic Books: A New Trend
C．A Book Group Brings Tradition Back	D．A Website Links People through Books

10 . When you set a foot outside of your door to drop trash, go to a social event or go for a walk, thoughts like “I hope I don’t see anyone I know” or “please don’t talk to me” may run through your mind. I’ve also said such things to myself. Sometimes the last thing you want to do is to talk with someone, especially someone new.

Why do we go out of our ways to avoid people? Do we think meeting new people is a waste of time? Or are we just lazy, thinking that meeting someone new really is a trouble?

Communication is the key to life. We have been told that many times. Take the past generations, like our parents, for example. They seem to take full advantage of that whole “communication” idea because they grew up talking face to face while Generation-Y grew up staring at screens. We spend hours of our days sitting on Facebook. We send messages to our friends and think about all of the things we want to say to certain people that we don’t have the courage to do in reality.

Nowadays, we are so caught up in our little circle of friends—our comfort zone. We love it that they laugh at our jokes, understand our feelings and can read our minds. Most importantly, they know when we want to be alone. They just get us.

Holding a conversation with someone new means agreeing with things that you don’t really believe and being someone you think they want you to be—it is, as I said before, a trouble. It takes up so much energy, and at some point or another, it is too tiring.

But meeting new people is important. Life is too short, so meet all the people you can meet, make the effort to go out and laugh. Remember, every “hello” leads to a smile—and a smile is worth a lot.

1. What do we learn about the author?

A．He likes to meet someone new.	B．He feels stressed out lately.
C．He’s active in attending social events.	D．He used to be afraid of talking to others.

2. What’s the problem of Generation-Y in the author’s eyes?

A．They rely on the Internet to socialize.	B．They are less confident in themselves.
C．They have difficulty in communicating.	D．They are unwilling to make new friends.

3. Why do many young people avoid meeting new people?

A．They think it troublesome.	B．They are busy with their study.
C．They fear to disappoint their friends.	D．They want to do meaningful work.

4. Why does the author write the text?

A．To stress the importance of friends.

B．To give tips on how to meet new people.

C．To encourage people to meet new people.

D．To display the disadvantages of Generation-Y.