1 . Daphne Soares, a biologist, makes an amazing discovery about alligators. The first time she got really close to an alligator (短吻鳄) was when she was helping to bold down an eight-foot American alligator. It was then that she noticed is face was covered with little black spots. This led to the discovery of the little black dots.
She started her study of the black dots. When she read the books and scientific journals, she learned that people had noticed the dots, but no one really knew what the dots were for.
To find out the secret she placed electrodes (电极) on nerves coming from some of the dots. When the nerves fired, they sent a message to the brain and created a tiny electric current. Just then she heard a small sound over a loudspeaker. She tired to see if the dots acted like eyes and temperature sensors, but nothing worked.
One day she was careless with dropping a tool into an alligator’s tank. When she put her hand in the tank to get the tool out, she made small waves in the water. When they reached the alligator’s face, she heard a noise over the speaker. She then realized that the dots must be sensitive to the changes in pressure when hit by waves of water.
After that, she is now studying blind cavefish. She is trying to learn whether they are blind from birth or lose their sight as they grow up. She is also doing more research on crocodilians (鳄目). She wants to find out how the genes of alligators with pressure sensors only on their faces differ from the genes of crocodilians that have pressure sensors all over their body.
1. Why did Daphne Soares first get close to the alligator?| A．To observe its black dots. | B．To find the secret of its dots. |
| C．To help others to hold it up. | D．To prevent it from moving. |
| A．A little noise was sent out. | B．An electric current created a message. |
| C．The nerves were on fire suddenly. | D．The nerves sensed temperature changes. |
| A．By experiment. | B．By reference. |
| C．By accident. | D．By comparison. |
| A．Cavefish lose sight as they grow up. |
| B．Daphne Soares devotes her energy to research work. |
| C．Alligator’s genes are the same as crocodilian’s. |
| D．Daphne Soares discovered a new species of alligator. |
2 . Next-generation fitness equipment and robots help you cook dinner. Those are a few of the countless new products expected to be shown next week at CES, the annual tech conference that typically sets the tone for the biggest trends of the year. Home automation, health and 5G will once again be hot topics, but many companies will also introduce pandemic-specific features to reflect our increased time at home.
Each year, reporters, exhibitors and investors typically explore Las Vegas showrooms filled with giant TVs, smart cars and robots, but CES will be online only for the first time in its 54-year history due to Covid-19.
The Consumer Technology Association, the nonprofit behind the four-day event starting Monday, said 1,800 exhibitors from around the world will fill its "digital venue" this year—a number that's down significantly from 4,000 in-person exhibitors last year. The move will allow tech companies from countries which have never attended before to take part in the online exhibition, but could also make it harder for smaller companies to get noticed without a physical showroom.
Registered attendees will be able to stream and re-watch keynotes from companies such as Verizon (VZ) and General Motors (GM), tune in to breakout sessions — about how, for example, technology is playing a role in vaccine deployment—and search through a registry of exhibitors to watch new product presentations.
It'll lack some of the signature ingredients of the trade show, such as hands-on time with the latest small machines and networking. But the technology that makes our lives more connected and convenient will still gain popularity.
1. What are the new products mainly connected with?| A．People’s daily life. | B．Everyday busy work. |
| C．The popularity of 5G. | D．Countless housework. |
| A．It takes place every two years. | B．It attracts fewer exhibitors this year. |
| C．It is held mainly on the Internet. | D．It prohibits small companies to attend. |
| A．Supportive. | B．Disappointed. | C．Doubtful. | D．Casual. |
| A．A brochure. | B．A textbook. | C．A newspaper. | D．A guidebook. |
3 . On October 3, 1945, a ten-year-old boy stood on stage at a contest. One of his teachers had encouraged him to enter the contest after hearing him sing one morning. He placed fifth.
A few months later, he received a guitar for his 11th birthday. What he really wanted was a bicycle. Two of his uncles gave him basic guitar lessons. But he didn’t like singing in public. He was too shy.
Yet something inside kept pulling him back to music. In 1948, his family moved to Memphis, Tennessee. The boy would spend every moment of his free time on Beale Street, the heart of the Memphis Blues Scene. He’d often bring his guitar to school. Yet his eighth grade teacher gave him a C in music. She told him that he had “no gift for singing”.
In 1953, the young man walked into the offices of Sun Records. But the record went nowhere. He tried out for a local singing group, but failed in the audition. He told his father, “They told me I couldn’t sing.”
Then Sam Philips, the owner of Sun Records heard this young man’s record. Sam invited him back to the studio and asked him to sing as many songs as he knew. Yet even then, it was not going well. The young man was about to go home when he suddenly picked up his guitar and started singing a 1946 Blues song, That’s All Right. Philips immediately began taping; he knew this was the sound he’d been looking for. Sun Records released the album. No one had ever heard anything like it before.
Within three years Elvis Presley（猫王）was an international superstar.
1. What did the boy hope for as the 11th birthday gift?| A．A guitar. | B．A birthday party. |
| C．A bike. | D．A music lesson. |
| A．He eventually gave up singing. | B．His teacher encouraged him. |
| C．His family sent him to a music school. | D．He was still addicted to music. |
| A．A short performance. | B．A previous plan. |
| C．A singing contest. | D．A new record. |
| A．Actions speak louder than words. |
| B．Two heads are better than one. |
| C．A friend in need is a friend indeed. |
| D．Where there is a will, there is a way. |
4 . I need help! I have to fix a leaking pipe in my bathroom but I'm not sure where to begin. I know I lack the necessary DIY skills, but luckily there are numerous books and online videos that will hopefully give me the information I need. Publications that help us to help ourselves are nothing new, but the range of them is increasing with advice being given far beyond practical tasks around the house.
Bookshops these days are full of titles which claim to boost your self-confidence, your wealth, your love life or your career. Some claim to improve your life within seven days! It's big business and it's thought that the self-help industry is worth $10bn in the US alone.
The first self-help book called 'How to Win Friends and Influence People' was published in 1936, and has since sold 30 million copies and is still popular now. It includes guidance on how to make people like you and how to make your life happier. It might seem strange to think that we need a book to tell us how to live our lives but self-help books remain a go to remedy for those of us looking for enlightenment.
There are, of course, trends in what we need help with. Emma Marshall, who works at British bookshop Waterstones, says "at the moment we're in the tidying up, getting rid of things trend... I think the trend right now is about slowing down in your life." It seems there is always something we need help with, and reading about it can be very therapeutic - it makes us feel good, even if we don't do anything about it.
Of course, the internet has become the place to go to for salvation. We've got used to searching for solutions online, and now these solutions even include how to fix or improve our lives. Interestingly, psychologist Caroline Beaton, says people called 'millennials' are self-critical -they are aware of their own faults—which also means they're more likely to spend time and money on self-help. There's also a theory that the self-help industry does well during a recession – people are perhaps even more likely to reach for self-help to improve their situation.
Whatever the reason for the continued interest in self-help, it's good to know help is at hand when we need it. The alternative to finding a happier life is just to come to terms with yourself as you are - I know, I read about it in a book! Do you believe in self-help books?
1. Where else can you get self-help advice apart from books?| A．from teachers | B．from friends |
| C．from the Internet | D．from parents |
| A．They may offer you some keys to success. |
| B．They hasn't gained great popularity. |
| C．All of us enjoy them very much. |
| D．They can certainly improve your life within seven days. |
| A．They are stuck in a recession. |
| B．They realize they are not perfect. |
| C．They are more likely to have access to books. |
| D．They haven't got used to searching for solutions online. |
| A．People don't have interest in self-help books. |
| B．Accepting yourself as you are makes you happier. |
| C．The self-help industry makes little difference during a recession. |
| D．The current trend in self-help books is about rushing around and taking things easier. |
5 . Slowly but surely, we’re moving closer and closer to 5G world. From smart-home security to self-driving cars, all the internet-connected devices in our life will be able to talk to each other at lightning-fast speeds with reduced delay. Objectively speaking, the fastest 4G download speeds in the US top out at an average of 19.42Mbps. But by comparison 5G promises gigabit (千兆) speeds.
“5G is one of those heralds (使者),along with artificial intelligence, of this coming data age.” said Steve Koenig, senior director of market research for the Consumer Technology Association. The self-driving vehicle is a great emblem of this data age, and that is to say, it is a sign of time, because with one single task, driving, you have massive amounts of data coming from the vehicle itself, and a variety of sensors are collecting a lot of information to model its environment as it moves. It’s pulling in data from other vehicles about road conditions down the lane. It could be weather information, and also connected infrastructure (基础设施) construction. There’s lots of data behind that task, which is why we need the high speed.
And virtual reality glasses and headsets haven’t yet broken the mainstream, but tech companies are joyfully betting that these devices will eventually replace our smartphones. With 5G, that could actually happen. This is notable because companies such as Apple are reportedly developing AR glasses to assist — or even replace — smartphones.
Ericsson stated at February's Mobile World Congress how smart glasses could become faster and lighter with a 5G connection, because instead of being weighed down with components, the glasses could rely on hardware for processing power.
But don’t get too excited. There’s still a lot of work to be done in the meantime, including various trials to make sure the radios play nicely with hardware and infrastructure construction so 5G isn’t concentrated only in big cities.
1. What is the first paragraph mainly about?| A．The security of 5G. | B．The present world of 5G. |
| C．The future of 5G. | D．The super speed of 5G. |
| A．exhibition | B．symbol | C．sponsor | D．explanation |
| A．They will be heavier than present ones. | B．They will process power on their own. |
| C．They will bring a big fortune to tech companies. | D．They will take the place of smartphones. |
| A．How to fully expand 5G coverage. | B．How to effectively reduce 5G trials. |
| C．How to nicely operate 5G hardware. | D．How to widely construct 5G big cities. |
6 . As a CEO of a startup, you get used to hearing"no".You also face an endless continuation of what feels like shocking crises, like nearly running out of cash, losing a key customer,discovering a widespread product failure, or having to shut down operations because of a global pandemic. But it turns out that these disasters can actually be good for you. In fact,I'm not sure whether you can innovate without them. Here's what all our crises have taught me.
It's good to be uncomfortable. We once had a key customer request-a battery capability that we'd never developed before. The customer made it clear that if we couldn't develop this capability, they'd be less confident in our product. We wrestled with the risks, not least of which was the potential embarrassment if we couldn't meet the customer's needs. We knew we'd face many technical problems if we tried to go into operation. Yet we decided to try to satisfy the customer, even if it wasn't obvious at first how we could get it done. A few weeks later we delivered something beyond what the customer had asked for, and we've since grown this capability into a powerful sales tool and potential revenue stream-not to mention it strengthened our relationship with the customer.
Short-term failure is good. A few years ago, our company began to expand our manufacturing output in response to a customer's need. In the process we discovered something unusual we hadn't seen during smaller-scale production. Our team dived into failure analysis, and we finally put the problem down to a single material within the battery. We'd used this material for years, but now we needed a replacement. Once we made that change,the battery quality and reliability greatly improved.
It's okay to show weakness. One of my hardest days as CEO was the day when I found out I was pregnant.We were in the middle of raising a funding round, and I had been traveling nonstop for a year. Until that day, I had assumed that my role as CEO was to display strength and confidence. With the mounting pressure I was harder on myself than I needed to be, and now I had the added stress of being pregnant.I decided to acknowledge to my team that I was breaking down. They united together and found ways to operate more smoothly and communicate more effectively, supporting me to focus my time on most pressing goals. This gave me not only the space to plan for the company’s future,but also to prepare for my own new normal: leading while becoming a first-time mother.
1. What does the underlined word "them" in Paragraph 1 refer to?| A．Frequent rejections. |
| B．Financial crises. |
| C．Global pandemics. |
| D．Endless disasters. |
| A．Customers' requests should be carefully evaluated. |
| B．Meeting challenges can bring about extra benefits. |
| C．The company should keep launching new products. |
| D．Innovation is the only way to win fierce competition. |
| A．By drawing a comparison. |
| B．By giving an example. |
| C．By challenging assumptions. |
| D．By doing an experiment. |
| A．Learn to let go |
| B．Make it as a CEO |
| C．Think deep sometimes |
| D．Make friends with crises |
7 . Everyone needs friends.There is an old saying, "Friends are God’s way of taking care of us." But how do you find real friendship and keep it?
The American writer Sally Seamans tells young students some smart ways to make friends.Sally says finding friendship is just like planting a tree.You plant the seed(种子)and take care of it to make it grow.
First, you should choose a friend.What makes a good friend? It is not because a person has money or good looks.A good friend should be kind and patient(耐心).For example, if you have a bad day, a good friend should listen to your complaints and do his best to help.To make a good friend, you cannot be too shy.You should make each other happy and share your lives.
But things cannot always be happy.Even the best friends have fights.What should you do when you have a fight with your friend? You have to talk to him or her.When there is no one around, have an honest talk.If he or she doesn't want to talk, you could write a letter.
There are three steps to being friends again:
Tell him or her how you are feeling; say what your friend has done wrong, and explain why you did this or that.Remember that friendship is the most important thing in your life.
1. Sally wants to tell students the ways to .| A．make friends | B．plant trees | C．get happy | D．keep fit |
| A．be lovely and cool | B．have good looks |
| C．have lots of money | D．be kind and patient |
| A．buy a present for | B．never say a word to |
| C．write a letter to | D．have dinner with |
| A．Teenagers and friendship. | B．Finding and keeping friendship |
| C．The trouble of growing up. | D．Good friends around you. |
8 . Fishing is a popular activity and every fisherman knows the rule: Keep the big ones, throw the smaller ones back. The idea behind it is simple —the larger fish are probably older. If you keep the smaller ones, they won’t be able to reproduce, and the fish population is in danger.
But fishing out the largest fish from a population has an unwanted effect: Over time, fewer adult fish get really big. If only the smaller fish reproduce（繁殖）, then future generations become smaller. This is an example of evolution（进化）in action.
One scientist, Dr. David Conover, has spent the last decade studying the effects of the “keep the big ones” rule and if they can be reversed（颠倒）.
To set up his experiment, Conover and his team caught hundreds of silverside fish and divided them into six groups. For two groups, Conover followed the “keep the large ones” rule and took out the biggest fish.
For two other groups, he removed only the small fish. For the last two groups, he removed fish at random (随意的).
After five years, he measured the fish in each group. In the two groups where the largest fish were regularly removed, the average(平均) fish size was smaller than the average size in the other groups. Here was evolution in action: If only small fish survive(生存) to reproduce, then future generations of fish will also tend(倾向) to be small.
For the second five years of his experiment, Conover changed the rules and took fish randomly(随意) from each group. At the end of the experiment, he found that the fish that were in the “keep the large ones” group for the first five years had started to get larger again, although he calculated(计算) it would take at least
12 years for the fish in that group to return to their original(原始的) size.
In other words, it takes less time to shrink(变小) than it does to recover(恢复).
1. The underlined word “it” (Line 2) refers to “_____”| A．the activity |
| B．the fish |
| C．the rule |
| D．the fisherman |
| A．It helps to protect fish numbers. |
| B．It helps to protect fish size. |
| C．It is the custom in most countries. |
| D．They will be punished if they don’t. |
| A．The “keep the big ones” rule made no difference to fish size. |
| B．The “keep the big ones” rule made fish smaller on average. |
| C．The “keep the big ones” rule made the fish bigger on average. |
| D．The “keep the big ones” rule affected all fish populations in the same way. |
| A．If small fish reproduce, the future generations will be smaller. |
| B．There was no largest fish in “keep the large ones” group for the first five years. |
| C．it would take 10 years for the fish to return to their original size. |
| D．It takes less time to become bigger than it does to recover |
| A．To encourage people to fish more carefully. |
| B．To urge governments to change the rules of fishing. |
| C．To describe the results of a scientific experiment. |
| D．To introduce the rules of fishing to readers. |
9 . What is a family? Why does it matter? What does it teach us that we can’t learn on our own? These questions seem especially relevant in the holiday season when it is often our tradition to gather as families and celebrate together.
My mother was one of twelve children. As they grew up, married and had children of their own, most of them lived near enough to gather for holidays at my grandparents’ home in a small town in the mountains of North Carolina.
I don’t recall getting many gifts from them .I remember the sense of belonging, of being part of something that assured me I was loved and not alone.
I delighted in the laughing, playing and fighting with my crazy cousins. I watched my granddad and uncles sit on the porch, rain or shine, smoking and joking, arguing about politics and trying to solve the problems of the world. I listened to my grandmother, mother and aunts stir (搅拌) pots on the stove and talk about their lives, hopes, dreams and disappointments, and gossip about any sister who failed to show up.
The food was always plentiful and delicious-country ham, sweet potatoes, green beans, biscuits and my grandmother’s banana pudding. But for me, the food was never the highlight. The highlight was simply being together. A family.
However, they’re all gone now. My parents and grandparents, my aunts and uncles have left this world for the next. My cousins are scattered here and there. And yet the memories linger, along with the love that we shared.
I treasure those memories and the things they taught me. They told me that families aren’t perfect, but they prepare us to find our way in an imperfect world. They made me realize that all families are crazy in their own particular ways.
My husband and I are growing a new family, while keeping close to the surviving members of the families. It’s a beautiful blend (混合) of kindness, traditions, nurturing (养育) and friendships, which grows year after year.
I hope this holiday season will fill you with lovely memories of the family that raised you, and surround you with all the people who mean “family” to you now.
1. What do we know about the author’s family according to the article?| A．She didn’t get on well with her cousins. |
| B．Her grandpa and uncles were politicians. |
| C．Her family delighted in their gatherings. |
| D．The female members liked to show off. |
| A．there was a lot of inviting food |
| B．special gifts were selected thoughtfully |
| C．they brought the family closer together |
| D．she got to see relatives who seldom visited |
| A．Disappear. | B．Remain. |
| C．Increase. | D．Fade. |
| A．Good families should live together. |
| B．Imperfect families may help us adjust to the world. |
| C．Memories of perfect families deserve treasuring. |
| D．It’s necessary to create crazy family traditions. |
10 . It seems that the Englishmen just cannot live without sports of some kind. A famous French humorist once said that this is because the English insist on behaving like children all their lives. Wherever you go in this country, you will see both children and grown-ups knocking a ball about with a stick or something, as if in Britain men shall always remain boys and women girls! Still, it can never be bad to get exercise, can it?
Taking all amateur(业余)and professional sports in Britain into consideration, there can be no doubt that football is at the top of the list. It is called soccer in the United States. The game originated(起源于)in Britain and was played in the Middle Ages or even earlier, though as an organized game, or “association football”, it dates only from the beginning of the 19th century.
The next is rugby, which is called “football” in the United States. It is a kind of football played by two teams of fifteen players than eleven. In rugby, an oval-shaped ball is used which can be handled as well as kicked. It is a pretty rough game.
In summer, cricket is the most popular sport. In fact, it has sometimes been called the English national game. Most foreigners find the game rather slow or even boring, but it enjoys great popularity among the British.
Tennis rates high on the list, too. It was introduced into England from France in the 15th century, but it was from England that it spread to practically every country in the world.
Table tennis, or “ping-pong”, surely is not played on a great scale as it is in China or Japan. Basketball and volleyball were introduced into Britain during the late 19th century from America and are gaining popularity. Horse-back riding, swimming, rowing and golf all attract a lot of people.
1. The main purpose of Paragraph l is to tell us that the English__________.| A．are all sports lovers | B．behave like children |
| C．like to kick a ball around | D．can remain young all their lives |
| A．They differ in the shape of the ball. | B．They are played by different numbers of players. |
| C．They both can be handled. | D．They both can be kicked. |
| A．basketball | B．tennis | C．rugby | D．football |
| A．The Most Popular Sports | B．The English Sports |
| C．History of Sports | D．Sports in Britain |
