1 . Researchers have created glass by harvesting energy from wind and precipitation (降水).The approach offers an alternative to other smart windows powered by batteries, solar panels, and even standard power outlets. “The creation represents a new kind of renewable energy source”, says Liming Dai, a nanomaterial engineer at Case Western Reserve University in Cleveland, Ohio, who was not involved in the research.
Smart glass, which changes its characteristics to block out light or heat, has been around for decades. Common examples include glare-fighting rearview (后视) car mirrors and windows that change color for energy savings and privacy. But many are expensive, and people are still looking for eco-friendly ways to power the windows. Batteries and plug-in outlets aren’t apparently “green”, and built-in solar panels can cloud or hide parts of the glass.
In experiments, the glass produced up to 130 milliwatts per square meter, enough to power a pacemaker or a smart phone while it’s asleep, the team reported online last month in ACS Nano. This output might suit many applications, such as being a power source for home or office electronics, says co-developer and scientist Zhong Wang of the Georgia Institute of Technology in Atlanta. Since their first project in 2012, a light-up sidewalk powered by footsteps, he and his colleagues have miniaturized their generators to create everything from self-cleaning keyboards to sensors for security systems.
But Wang and colleagues still have more work to do before this smart glass is ready for commercialization. Now, the glass has no way to store the energy it creates. To solve this problem, Dai says, transparent supercapacitors (超级电容器) could be placed into the glass without decreasing visibility.
For now, the team wants to improve the energy efficiency of their nanogenerators. These tiny power plants can convert about 60% of the mechanical energy (机械能) that they encounter into electricity. “The output power is a constant goal,” Wang says. “Free energy is around us, and anything can happen if you take control of it."
1. What is unique about the latest generation of the smart glass?| A．It is more expensive. | B．It is powered by weather. |
| C．It can protect privacy. | D．It can block out light and heat. |
| A．It cannot power a smart phone. |
| B．It cannot suit the supercapacitors. |
| C．It cannot keep its produced electricity. |
| D．It cannot change its color according to weather. |
| A．Transform. | B．Waste. |
| C．Consume. | D．Reserve. |
2 . The death of soccer legend Diego Maradona has shocked fans worldwide and drawn an outpouring of grief. Maradona, 60, died of a heart attack on Nov 25,2020.
Argentina's president, Alberto Fernandez, declared three days of national mourning upon Maradona's death. "You took us to the top of the world," he wrote on the social networking platform Twitter, "and you were the greatest of Indeed, Maradona lived a life that showed that soccer at its peak can have passions that move entire nations. He was a man who was deified (奉若神明)in Argentina and the Italian city of Naples.
Maradona reached legendary position during the 1986 World Cup in Mexico after scoring two winning goals against England in the quarterfinal. That was a redemption (救赎)for the nation, which was defeated in a war over territory (领土)conflict by the UK just four years earlier. But his magic didn't stop there. At a time when teams were largely domestic, Maradona became the first truly global soccer superstar. Before his arrival in Napoli in 1984 they never won the Serie A title. The city took him in, regarding him as the man to bring back pride and respect to Naples. The club won the championship for the first time ever in the 1986-87 season.
Magician though Maradona may have been, he was deeply human, thus deeply flawed. He appeared in newspapers more for his drug habit than for his soccer skills in the late 1990s. After he played his goodbye game in 2001, Maradona stated, "The ball does not show the dirt."
As a symbol and idol he shone brighter than any other athlete in the last century. Argentina and Barcelona star Lionel Messi wrote, "He leaves us but does not leave, because Diego is eternal (不朽的)
1. Why was Maradona regarded as "the greatest of all"?| A．Because he was an international superstar. |
| B．Because he played soccer to the death of his life. |
| C．Because he lit the passion that moved the country with his soccer life. |
| D．Because he won back the territory tor the country after the 1986 World Cup. |
| A．Imperfect. | B．Athletic. | C．Noted. | D．Influential. |
| A．He was a perfect human respected by people. |
| B．He built his legendary status in soccer in his 20s. |
| C．He was a great soccer player as well as a magician. |
| D．He was the brightest soccer star in the 19th century. |
| A．The Rise of a Superstar. | B．The Biography of a Soccer Player. |
| C．An Intense Soccer Match. | D．Passing of a Legend. |
3 . One of China's biggest smartphone makers has never sold a phone in the country. Yet thousands of miles away, it dominates markets across Africa. Unknown in the West, Transsion has left global players like Samsung and Apple trailing in its wake in a continent that's home to more than a billion people.
In cities like Lagos, Nairobi and Addis Ababa, busy streets are filled with the bright blue shops of Transsion's brand. In China, the company doesn't have a single store, and its headquarter in the southern city of Shenzhen goes largely unnoticed among the names of more famous Chinese tech firms.
The company took a different path to success from other top Chinese smartphone makers such as Huawei and Xiaomi, which started out in China before eventually expanding overseas. Transsion built its business in Africa. And it has no plans to come home.
In Edna Mall in Addis Ababa, the capital of Ethiopia, Mesert Baru poses for her Tecno Camon i. "This phone is seriously nice for selfies," says the 35-year-old shop assistant, admiring the picture she just took.
Mesert's satisfaction is no accident. The vice president of Transsion explained, "Our cameras adjust more light for darker skin, so the photograph is more beautiful, he says. "That's one of the reasons why we've become successful."
Transsion's founder George Zhu had spent nearly a decade traveling to Africa as a head of sales for another mobile phone company when he realized that selling Africans handsets, which were made for developed countries, was the wrong approach.
In 2006, Zhu launched Tecno in Nigeria, which has the most population in Africa . From the start, the company's motto was “think global, act local”, which meant making phones that met Africans, special needs.
Transsion opened research and development centers in China, Nigeria and Kenya to work out how to better appeal to African users. Local languages such as Amharic, Hausa and Swahili were added to keyboards and phones were given a longer battery life.
In Nigeria, South Africa and Ethiopia, for example, the government frequently shuts off electricity to conserve power, leaving people unable to charge their phones for hours. In less developed markets, such as the Democratic Republic of Congo, Chowdhury says, consumers might have to walk 30 kilometers to charge their phones at the local market and have to pay to do so. "For those consumers, longer battery life is a blessing," he adds.
1. In which country do Transsion phones sell best?| A．China. | B．Africa. | C．Korea. | D．America. |
| A．the headquarter of Transsion is in Africa |
| B．Africans like taking pictures with their cameras |
| C．Nigeria has the most population in the world |
| D．Satisfying the needs of Africans made Transsion popular |
| A．watches. | B．keyboards. | C．cameras. | D．mobile phones. |
| A．Longer battery. | B．Lower prices. |
| C．More functions. | D．Easier operation |
4 . The year 2020 will mark the beginning of the decade of the yold, or the “young old”, as the Japanese call people aged between 65 and 75. The traditional retirement age is 65. One might therefore expect peak retirement. By continuing to work, and staying socially engaged, the yold will change the world, as they have done several times before at different stages of their lives.
The yold are more numerous, healthier and wealthier than previous generations of seniors. The yold are busier, too. In short, the yold are not just any group of old people. They are challenging the traditional expectations of the retired as people who wear slippers and look after the grandchildren. That will influence consumer, service and financial markets.
The over-60s are one of the fastest-growing groups of customers of the airline business. The yold are vital to the tourism industry because they spend much more, when taking a foreign holiday, than younger adults.
But for all this to happen,three big things will have to change, under pressure from the yold themselves. The most important is public attitudes towards older people, and in particular the expectation that the old ought to be putting their feet up and quietly retiring into the background. Then, government policies will have to change, too. The retirement age in many rich countries is still below the age to which many people want to work. The effective retirement age (the age at which people actually leave the workforce) is usually even lower. Third, higher numbers of healthy yold people will require drastic changes in health spending. Most diseases of ageing are best met with prevention and lifestyle changes. But only about 2%~3% of most countries’ health-care spending goes on prevention. That will have to rise, because although the yold will constitute a bulge of comparative health and activity over the next decade, by 2030 they will hit 75 and enter a long period of decline for which few rich countries are ready.
1. What kind of people are the yold exactly?| A．They are workaholics. | B．They are full of energy. |
| C．They enjoy being focused on. | D．They like staying socially engaged. |
| A．They like traveling more. | B．They have more money. |
| C．They consume more on travel. | D．They have much free time. |
| A．Unsatisfied. | B．Subjective. | C．Neutral. | D．Active. |
| A．dealt with | B．come across | C．satisfied | D．experienced. |
5 . I’d been thinking of taking a course on scuba-diving(水肺潜水)for months, but wasn’t sure because I was afraid of snakes! Sea snakes. Just thinking about it made me sick.
But then, I wanted to know why people loved it so much. They all said that under the sea was like a totally different world, yet a beautiful one. And because of that, I decided to take the risk and try to face my fear.
So, after taking a private course from my diving instructor, Mbak Vita，I went to Sepa Island with her, to take the final exam.
First dive, 12 meters in depth. “What am I doing?” I asked myself. “What if something bad happened?” I tried hard not to panic and told myself to keep a good thought, “It’s gonna be a wonderful experience. Just do it!” Then I went down. My heart beat fast and my ears hurt as I went deeper. I followed Vita’s instructions closely until I felt comfortable to explore the sea.
Suddenly all around me was green. It felt like I was living in a green world! I saw some corals(珊瑚), big ones, and lots of beautiful fish hiding in the sand.
I was enjoying the beauty all around me when my instructor waved at me with her hand holding a pink flipper(橡胶蹼). “That flipper looks familiar,” I thought. Yes! That was my flipper! I didn’t realize that my right flipper had managed to get away from my right foot!
So, that was the first dive. In total，we dove 5 times in 2 days. We managed to dive up to 18 meters in depth. The next dives were smooth and for sure I didn’t lose my flipper! I was so happy to see different types of fish swimming in front of me as if I was invisible(不可见的).It was indeed so beautiful and peaceful down there. Now I can see why people love diving under the sea.
1. How did the author feel about learning scuba-diving at first?| A．Uncertain. | B．Excited |
| C．Comfortable. | D．Disappointed. |
| A．Feel tired and sleepy. | B．Keep cool and relaxed. |
| C．Keep quiet and patient. | D．Feel nervous and worried. |
| A．She saw a sea snake. |
| B．A flipper fell off her foot. |
| C．The sea water turned green. |
| D．She lost her instructor in the sea. |
| A．A pleasant trip to the beach |
| B．My first experience with scuba-diving |
| C．Why a person starts scuba-diving |
| D．How scuba-diving affects my life |
6 . Success doesn’t begin until you begin the walk down the way towards your goals.
And your walk down the way always begins first with a baby step. Why do we call them baby steps? Are they really anything more than our next step down life’s way?
Baby steps are the first steps we take as an act of faith. We see others stepping out and we want to show our ability to walk by following them. As we grow, we continue our development by taking extra baby steps. Sometimes we fall; sometimes we fail. After that, all steps become an act of faith; we just become more practiced. If you say to yourself “I don’t want to make a fool of myself” or “I’d better be good at this”, you’ll probably never take the baby steps towards your goals and end up lying in your own self-pity.
As a culture, we focus on results. We think about every risk that must be taken to reach our goals. There are few people who are excellent performers of any tasks the first time they try them. They fail and succeed. Then, they build upon their abilities learned each time. They practice their skills and use their talents through baby steps before they are ready to prove them to the whole world.
So, learn to take those baby steps to reach the goals before you. Know that you can depend on God to show you the way. As you become more experienced, your baby steps become a walk, then a jump, and finally a sprint. That’s how our baby steps lead us through the marathon of life.
1. In the third paragraph, the writer expresses the view that .| A．we can’t expect to succeed without working hard at first |
| B．adults should learn from babies in dealing with hard tasks |
| C．we must make full use of our skills in order to get rewards |
| D．baby steps play the key role in leading us towards success |
| A．slow rush | B．sudden stop | C．hard climb | D．fast run |
| A．Light-hearted. | B．Regretful. | C．Encouraging. | D．Concerned. |
7 . July 27th, 2010 was a typical English summer’s day—it rained for 24 hours! As usual, I rushed home from work at midday to check on the house. Nothing was amiss. By the time I left work at 5pm, however, the road into our village was flooded. Our house had never been flooded but, as I opened the front door, a wave of water greeted me. Thank God the kids weren’t with me, because the house was 5 feet deep in water. We lost everything downstairs.
At first we tried to push on through. We didn’t want to move the children out of home, so we camped upstairs. We put a sheet of plastic across the floor to protect us from the damp. But after three months, we felt very sick, so we moved to a wooden house in a park. The house was small, but at first we were all just delighted to be in a new place. Unfortunately, things took longer than expected and we were there for 10 months. The life there was inconvenient. What surprised me most was how much I missed being part of a community (社区). We had lived in a friendly village with good neighbours, and I’d never thought how much I’d miss that.
Although our situation was very hard, it’s difficult to feel too sorry for yourself when you look at what’s happening elsewhere. I watched a news report about floods in Northern India and thought, “We didn’t have a straw hut (茅草房) that was swept away, and our house is still standing. We’re lucky.”
We moved back home in August. With December coming, there’s still reconstruction work to be done, so it’s difficult to prepare for Christmas. But I can’t wait—I’m going to throw a party for our friends in the village to say thanks for their support. This year, I won’t need any gifts—living away from home for months has made me realize how little we actually need or miss all our possessions. Although we are replacing things, there’s really no rush—we have our home back, and that’s the main thing.
1. The underlined word “amiss” in the first paragraph means .| A．wrong | B．missing | C．right | D．difficult |
| A．Because they were able to move to a new place. |
| B．Because many other places were flooded. |
| C．Because their straw hut was not swept away. |
| D．Because some others suffered even more. |
| A．was sick of staying upstairs |
| B．cared much about her children |
| C．could not stand living in a wooden house |
| D．did not deal well with her family affairs during the flood |
| A．She valued human feelings more than before. |
| B．She realized she almost didn’t need possessions. |
| C．She found Christmas gifts no longer badly needed. |
| D．She thought her own home was the most important. |
8 . Sales of Apple’s new iPhone 11 in China began on Friday, but were met with a cooler reception from consumers than in previous years. Unlike in previous years, no long lines were seen outside Chinese shops on Friday for the new iPhone, and the product release only made the headlines in a few media outlets.
Huawei unveiled its Mate 30 smartphone series on Thursday night. Its new devices have won consumers’ hearts at home and abroad. Many compared it with Apple’s new iPhone 11, saying that beats the new iPhone in terms of innovation and quality. One customer surnamed Zhao, an IT specialist who pre-ordered a Mate 30 Pro on Friday, said that he chose Mate 30 without hesitation. Zhao said, “It’s obvious that Huawei’s new phone with its advanced 5G mode would lead the future global telecommunications market, and its new innovative features in gesture and side control attracted my attention, too.”
In contrast with iPhone 11’s lukewarm sales, Chinese netizens have engaged in discussions on Mate 30 and Mate 30 Pro. An online poll on the Mate 30 and iPhone 11 on Weibo on Friday showed that more than 60 percent of netizens chose the Mate 30, while less than 20 percent chose the iPhone 11. Many chose Huawei not out of patriotism but for its technology.
Overseas consumers also engaged in vigorous discussions on Huawei’s new flagship devices on technology sites and social media platforms. On Twitter, many netizens said “nice”, “best phone ever” and “my favorite one” on Huawei’s Twitter account. Some netizens in countries like the UK, the Netherlands and Argentina asked when Huawei’s new devices would be released in their countries.
1. How did customers react to Apple’s new product?| A．They thought it was cool to use it. | B．They stood in long lines to purchase it. |
| C．They were less interested in it than former years. | D．They thought its quality was worse than before. |
| A．The price and the weight. | B．The quality and innovation. |
| C．The appearance and the speed. | D．The service life and function. |
| A．Store. | B．Exam. | C．Account. | D．Vote. |
| A．A New Era—5G | B．Huawei Is Better than Apple |
| C．Huawei’s Mate 30 Defeats iPhone 11 | D．Apple’s New iPhone 11 |
9 . According to a recent study in the Journal of Consumer Research, both the size and consumption habits of our eating companions can influence our food intake. And contrary to existing research that says you should avoid eating with heavier people who order large portions(份), it's the beanpoles with big appetites you really need to avoid.
To test the effect of social influence on eating habits, the researchers conducted two experiments. In the first, 95 undergraduate women were individually invited into a lab to ostensibly(表面上)participate in a study about movie viewership. Before the film began, each woman was asked to help herself to a snack. An actor hired by the researchers grabbed her food first. In her natural state, the actor weighed 105 pounds. But in half the cases she wore a specially designed fat suit which increased her weight to 180 pounds.
Both the fat and thin versions of the actor took a large amount of food. The participants followed suit, taking more food than they normally would have. However, they took significantly more when the actor was thin.
For the second test, in one case the thin actor took two pieces of candy from the snack bowls. In the other case, she took 30 pieces. The results were similar to the first test: the participants followed suit but took significantly more candy when the thin actor took 30 pieces.
The tests show that the social environment is extremely influential when we're making decisions. If this fellow participant is going to eat more, so will I. Call it the “I’ll have what she's having” effect. However, we'll adjust the influence. If an overweight person is having a large portion, I'll hold back a bit because I see the results of his eating habits. But if a thin person eats a lot, I'll follow suit. If he can eat much and keep slim, why can't I?
1. What is the recent study mainly about?| A．Food safety. | B．Movie viewership. |
| C．Consumer demand. | D．Eating behavior. |
| A．Big eaters. | B．Overweight persons. |
| C．Picky eaters. | D．Tall thin persons. |
| A．To see how she would affect the participants. |
| B．To test if the participants could recognize her. |
| C．To find out what she would do in the two tests. |
| D．To study why she could keep her weight down. |
| A．How hungry we are. | B．How slim we want to be. |
| C．How we perceive others. | D．How we feel about the food. |
10 . I was 16 when my father finally decided he would send me to a wilderness camp for several months. He had threatened to do it many times before, but my mother had always managed to prevent him from doing so. This time he insisted on doing it.
The latest incident was the last straw. Impulsively （(冲动地)）, I had pushed Mr. Ford, my math teacher, down a flight of steps at school. He broke his arm in two places. Anyway, he had agreed not to accuse me as a favor to my dad, who was in the middle of a tight race for sheriff （警长） in our town. But my reckless behavior had my dad's closest advisor talking.
“John, he's your son and he's a kid, but he is dragging you down,” I heard Jake Hutch tell my dad through his closed office door the night after I pushed Mr. Ford. “If you can't make your son obey the rules, how can you make the law obeyed in this town?”
So, off to Pisgah National Forest I went. I imagined hours of untold abuse at the hands of some strong sergeants （军士）. I was determined not to be broken. I was who I was.
Nearly every day for six months, a small group of other troubled teens and I carried our 30-pound backpacks on a difficult journey covering about 10 miles. We hiked in a rough wilderness that seemed untouched by civilization.
Our sergeants were firm but kind, not frightening as I had imagined. We learned how to make a fire without matches and create a shelter with branches and grass. We learned which plants were safe to eat out in the wild. I felt myself change. I was calm and often reflective. My old, impulsive self was gone.
One morning, six months later, my dad came to pick me up. I ran to hug him and saw happiness and love in his eyes.
“So what's it like being sheriff?” I asked on the ride home.
“I lost the race, Danny,” he said.
“I'm sorry, Dad.” I knew my behavior probably had a lot to do with the defeat.
Dad squeezed my shoulder and brought me close. “As long as I don't ever lose you, I'm okay.”
1. The author was finally sent to a wilderness camp for the reason that _______.| A．he could learn how to survive in the wild |
| B．he had pushed his math teacher down the stairs |
| C．his teacher insisted on giving him a lesson |
| D．his mother feared that he would be accused |
| A．courageous | B．careless |
| C．strange | D．rude |
| A．He was still what he used to be after camping. |
| B．He was not satisfied with his life in the camp. |
| C．He changed a lot after camping. |
| D．He became friends with other troubled teens at the camp. |
| A．Relieved | B．Upset. |
| C．Disappointed. | D．Anxious. |
