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Yesterday morning, I was surprising to hear that my best friend Allee has been hit by a car and was in hospital. The other day when he was going to cross a street,he was such careful that he didn¡¯t go until he saw the traffic light to turn green. But hardly had he got to the middle of the street while he saw a car suddenly appear on his right-hand side and come directly towards them. It was too late for Allee to escape. He was hit by the car or was thrown a few meters away. He was sent to the nearest hospital immediately and had operation. When I went to see him, he was out of dangers but still looked pale. I sincere hope he will recover and return to normal as soon as possible.

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I was never very neat, while my roommate Kate was extremely organized. Each of her objects had its place, but mine always hid somewhere. She even labeled (Ìù±êÇ©£©everything. I always looked for everything. Over time, Kate got neater and I got messier. She would push my dirty clothing over, and I would lay my books on her tidy desk. We both got tired of each other.

War broke out one evening. Kate came into the room. Soon, I heard her screaming, ¡°Take your shoes away! Why under my bed! ¡± Deafened, I saw my shoes flying at me. I jumped to my feet and started yelling. She yelled back louder.

The room was filled with anger. We could not have stayed together for a single minute but for a phone call. Kate answered it. From her end of the conversation£¬I could tell right away her grandma was seriously ill. When she hung up, she quickly crawled (ÅÀ)under her covers, sobbing. Obviously, that was something she should not go through alone. All of a sudden, a warm feeling of sympathy rose up in my heart.

Slowly, I collected the pencils, took back the books, made my bed, cleaned the socks and swept the floor, even on her side. I got so into my work that I even didn¡¯t notice Kate had sat up. She was watching, her tears dried and her expression one of disbelief. Then, she reached out her hands to grasp mine. I looked up into her eyes. She smiled at me, ¡°Thanks. ¡±

Kate and I stayed roommates for the rest of the year. We didn¡¯t always agree, but we learned the key to living together£º giving in, cleaning up and holding on.

1.What made Kate so angry one evening?

A. She couldn¡¯t find her books.

B. She heard the author shouting loud.

C. She got the news that her grandma was ill.

D. She saw the authors shoes beneath her bed.

2.The author tidied up the room most probably because .

A. she was scared by Kate¡¯s anger

B. she hated herself for being so messy

C. she wanted to show her care

D. she was asked by Kate to do so

3.How is Paragraph 1 mainly developed?

A. By analyzing causes. B. By showing differences.

C. By describing a process. D. By following time order.

4.What might be the best title for the story?

A. My Friend Kate B. Hard Work Pays Off

C. How to Be Organized D. Learning to Be Roommates

Jack threw the papers on my desk. ¡°Next time you want to change anything, ask me first,¡± he said. I had changed a long sentence and corrected its grammar ¡ª something I thought I was paid to do.

Several days later, he made me angry again. I went to his office, prepared to lose my job if need be, but not before I let the man know how I felt. ¡°What?¡± he said nervously. Suddenly I knew what I had to do. ¡°Jack, the way you¡¯ve been treating me is wrong. And it¡¯s wrong for me to allow it to continue,¡± I said. ¡°I want to make you a promise. I will be a friend.¡± The next day I brought some cakes to Jack¡¯s office. Every time I saw Jack in the hall, I smiled at him. After all, that¡¯s what friends do.

One year after our talk, I was told that I had breast cancer (ÈéÏÙ°©). When I was in hospital, my friends tried to find the right words to say, but no one could. The last day of my hospital stay, the door opened and Jack walked over to my bed. ¡°Tulips (Óô½ðÏã),¡± he placed some bulbs (Çò¾¥) beside me and said, ¡°If you plant them when you get home, you¡¯ll be there to see them when they come up.¡± Tears filled my eyes. In a moment when I prayed for just the right words, a man with few words said the right thing. After all, that¡¯s what friends do. Now, I have seen those tulips push through the soil every spring for over ten years.

1.Why did Jack throw some papers on the author¡¯s desk?

A. She gave him the wrong papers.

B. He thought her report was very bad.

C. He wanted her to check them again.

D. He didn¡¯t agree with her correction.

2.What promise did the author make to Jack?

A. She would work harder from then on.

B. She would treat him the same way.

C. She would bring him some cakes.

D. She would treat him like a friend.

3.The tulip bulbs that Jack gave the author probably suggest ______.

A. love B. honor C. hope D. thanks

4.What did the author mean by saying ¡°that¡¯s what friends do¡±?

A. Friends must help each other to correct mistakes.

B. Friends should give advice to each other at the right time.

C. Friends should treat each other with respect and kindness.

D. Friends should do anything for each other.

We live in a sweet world. The average American kid consumes more than 20 teaspoons of sugar per day, and adults eat 50% more sugar today than they did in the 1970s. We all know that too much sugar isn¡¯t good for you. But did we know it could be dangerous? A team of researchers at the University of Utah used mice to conduct a study on the negative effects of sugar. They found it could have serious effects on people¡¯s health.

Sugar is found not only in sweets and candies, but also in many household items like pasta and crackers.

During the 58-week-long study, mice were fed a diet containing 25% more sugar. This percentage equals a healthy human diet along with three cans of soda daily. The team found that these mice were twice as likely to die as mice fed a similar diet without the sugar. Though the mice did not show signs of obesity or high blood pressure, male mice were 26% less territorial and produced 25% fewer offspring than the other mice.

Scientists often use mice for research because they have a similar genetic£¨»ùÒò£© structure to humans. ¡°Since most substances that are dangerous in mice are also dangerous in people, it¡¯s likely that those physical problems that cause those mice to have increased deaths also work in people,¡± says study author James Ruff of the University of Utah. Findings from this study reveal negative effects that are not as noticeable as weight gain or heart problems. Sugar can contribute to long-term changes in the body that can change development and even shorten lives.

Cutting sugar out of the American diet altogether may be difficult. But making the effort to control our nation¡¯s sugar desire will provide for a truly sweeter future.

1.The study conducted by researchers aimed at learning about________

A. the advantages and disadvantages of sugar

B. the negative effects of sugar on people¡¯s health

C. the genetic structure of mice

D. American¡¯s diet

2.According to the study, which of the following statements is wrong?

A. Sugar can even shorten lives.

B. Sugar¡¯s negative effects are not noticeable.

C. Mice are more likely to die when fed a diet containing 25% more sugar.

D. Eating much more sugar can make mice put on weight and get high blood pressure.

3.From the passage we can infer_______

A. sugar plays a very important role in Americans¡¯ diet

B. kids consume more sugar than adults in America

C. the study on human beings lasted 58 weeks

D. the genetic structure of mice is totally different from that of people

4.What¡¯s the best title of the passage?

A. Living a sweet life

B. Kids consume much more sugar

C. Genetic structure of humans

D. Danger of sugar

Want to add some hours to your day? Ok, you probably can't change the fabric of time. But a new study suggests that the way you feel about your goal can change your concept of time and that some simple strategies could make you feel less rushed.

In a series of experiments, Jordan Etkin, a professor of marketing at Duke, and her co-authors, Loannis Evangelidis and Jennifer Aaker, looked at what happens when people see their goals as conflicting with one another. In one, they asked some participants to list two of their goals that they felt were in conflict, and others simply to list two of their goals. Those who were forced to think about conflicting aims felt more time pressure than those who weren't. In another experiment, the researchers gave participants a similar prompt regarding goal conflict, but this time measured their anxiety levels as well as their attitudes toward time. They found that participants who thought about conflicting goals had more anxiety than those who didn't, and that this, in turn, led to feelings of being short on time.

"Stress and anxiety and time pressure are closely linked concepts," D. Etkin explained. "When we feel more stress and anxiety in relation to our personal goals, that manifests as a sense of having less time."

Technological advances that allow people to do lots of things at once may increase the fe'eling of goal conflict, she said."I think the easier it is for us to try to deal with a lot of these things at the same time," She said"the more opportunity there is for us to feel this conflict between our goals."She isn't the first to suggest that actual busyness isn't the only thing that can make us feel busy At the Atlantic, Derek Thompson wrote that "as a country, we're working less than we did in the 1960s and 1980s." He offered a number of possible reasons some Americans still feel so overworked, including "the fluidness ffl¡À) of work and leisure." As he put it:"The idea that work begins and ends at the office is wrong. On the one hand, flexibility is nice, On the other, mixing work and leisure together creates an always-on expectation that makes it hard for white-collar workers to escape the shadow of work responsibilities."

And Brigid Schulte writes in her 2014 book Overwhelmed: How to Work, Love, and Play When No One Has the Time that some researchers believe "time has no sharp edges. What often matters more than the activity we're doing at a moment in time, they have found, is how we feel about it.Our concept of time is indeed,our reality.¡±

Fortunately, Dr. Etkin and her team did find ways of making us feel better about time¡ªor, at least, of reducing the negative influence of goal conflict. When participants performed a breathing exercise that reduced their anxiety, the impact of such conflict on their perception of time was less pronounced. Reframing anxiety as excitement (by reading the phrase "I am excited!" aloud several times) had a similar effect.

Breathing and reframing may not solve everyone's time problems¡ªMs. Schulte writes that some Americans are indeed working more than they used to. She cites the work of the sociologists Michael Hout and Caroline Hanley, who have "found that working parents combined put in 13 more hours a week on the job in 2000 than they did in 1970. That's 676 hours of additionally paid work a year for a family. And that's on top of all the unpaid hours spent caring for children and keeping the house together." Sometimes, we may feel short on time because we actually are. However, Dr. Etkin believes her findings suggest we may "have the ability to influence our experience of time more than we think we do."

"We're all going to have times in our lives when our goals seem to be in more conflict than others," she said. But with techniques like the ones her team tested, "we really can help ourselves feel like we have more time."

1.What makes people feel rushed today?

A.Goal conflict. B. High pressure.

C.Too much expectation. D. Lack of exercise.

2.Which of the following statements is TRUE according to the passage?

A. Most people are having less work to do nowadays.

B. People under a lot of stress have a better sense of time.

C. Technological advances allow people to feel less stressed.

D. The flexibility of work increases white-collar workers' pressure.

3.The underlined sentence "Our concept of time is, indeed, our reality." means_______

A.we should make full use of time

B.we value time more than the way we live

C.we can feel better about time if we want to

D.we don't have the time to enjoy life in reality

Flickering lights are annoying but they may have an advantage. Visible light communication (VLC) uses rapid pluses of light to transmit information wirelessly. Now it may be ready to compete with conventional Wi-fi.

In a recent TED talk, Harald Hasas from the University of Edinburge,UK demonstrated one VLC prototype(Ô­ÐÍ£©£¬¡°Li-Fi", transmitting a video from a store-bought LED lamp to a solar cell to a laptop. ¡°Li-Fi is essentially the same as Wi-Fi,except for a small difference- we use LED lights around us to transmit the data wirelessly as opposed to using radio," Haas says.

Once established, VLC could solve some major communication problems. In 2009, the US Federal Communications Commission(FCC) warned of spectrum (²¨Æ×£©crisis: because our mobile devices are so data- hungry we will soon run out of radio-frequency bandwidth.Li-Fi could free up bandwidth, especially as much of the infrastructure is already in place."There are around14 billion light bulbs worldwide, they just need to replaced with LED ones that transmit data", says Haas.

The idea of transmitting data through the visible light spectrum is not new.Alexander Graham Bell transmitted sound via a beam of sunlight in 1880 using a photo phone, a sort of solar-powered wireless telephone. In the past several decades, a number of researchers have looked at using visible light to transmit data.

But what Haas seized on is the use of simple LED light bulbs for data transmission. LED bulbs are controlled by a driver, which can rapidly di the light or turn it on or off. Therefore, Haas figured, data could be encoded in subtle shifts of the light¡¯s brightness. Eventually, he creaded a working transmitter and receiver system with an IKEA lamp and a solar panel.

Li-Fi stands to be much faster than Wi-Fi. According to Haas research, Li-Fi can achieve data density 1000 times greater than Wi-Fi,because Li-Fi signals are contained in a small area, as opposed to the more diffuse (·ÖÉ¢µÄ)£¬radio signals.The system wouldn¡¯t mean having to keep your lights on all the time either, Haas says---bulbs could be dimmed to such a point that they appear off, but still transmit data.

Now, Haas¡¯ team hopes that Li-Fi could make its way into homes in a few years. The system can easily network any device with an LED light¡ªan electric kettle, an oven. Eventually, this could bring about the Internet of Things era much faster. Haas also sees Li-Fi as a way to bring internet to remote location, using hilltop transmitters and rooftop solar panels. LED streetlights could even be used to form a network of outdoor Li-Fi, making it possible to stay connected when walking around the city.

But some sound a cautious note about VLC¡¯s future. It becomes less powerful , for example,when light is blocked, wheather due to fog or other conditions.

1.By saying "There are around14 billion light bulbs worldwide¡±Haas intended to tell us that ______________

A. mobile devices will consume more data

B. radio-frequency bandwidth needs to be freed up.

C. VLC might solve the spectum crisis.

D. the world has a complete lighting infrastructure.

2.The underlined phrased ¡°seized on¡° in the passage is closet in meaning to ¡°_____________¡±

A distinguished B. exploited C. created D. figured

3.We can learn from the passage that ________________________

A. Li-Fi can¡¯t work outdoors.

B Li-Fi can work with LED lights off.

C. Li-Fi can be used with all household appliances.

D. Li-Fi needs improving to next diverse need.

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