1 . A robot with a sense of touch may one day feel “pain”, both its own physical pain and sympathy for the pain of its human companions. Such touchy-feely robots are still far off, but advances in robotic touch-sensing are bringing that possibility closer to reality.
Sensors set in soft, artificial skin that can detect both a gentle touch and a painful strike have been hooked up to a robot that can then signal emotions, Asada reported February 15 at the annual meeting of the American Association for the Advancement of Science. This artificial “pain nervous system,” as Asada calls it, may be a small building block for a machine that could ultimately experience pain. Such a feeling might also allow a robot to “sympathize” with a human companion’s suffering.
Asada, an engineer at Osaka University, and his colleagues have designed touch sensors that reliably pick up a range of touches. In a robot system named Affetto, a realistic looking child’s head, these touch and pain signals can be converted to emotional facial expressions.
A touch-sensitive, soft material, as opposed to a rigid metal surface, allows richer interactions between a machine and the world, says neuroscientist Kingson Man of the University of Southern California. Artificial skin “allows the possibility of engagement in truly intelligent ways”.
Such a system, Asada says, might ultimately lead to robots that can recognize the pain of others, a valuable skill for robots designed to help care for people in need, the elderly, for instance.
But there is an important distinction between a robot that responds in a predictable way to a painful strike and a robot that’s able to compute an internal feeling accurately, says Damasio, a neuroscientist also at the University of Southern California. A robot with sensors that can detect touch and pain is “along the lines of having a robot, for example, that smiles when you talk to it,” Damasio says. ‘It’s a device for communication of the machine to a human.” While that’s an interesting development, “it’s not the same thing” as a robot designed to compute some sort of internal experience, he says.
1. What do we know about the “pain nervous system”?| A．It is named Affetto by scientists. | B．It is a set of complicated sensors. |
| C．It is able to signal different emotions. | D．It combines sensors and artificial skin. |
| A．Delivered. | B．Translated. | C．Attached. | D．Adapted. |
| A．Robots can smile when talked to. |
| B．Robots can talk to human beings. |
| C．Robots can compute internal feelings |
| D．Robots can detect pains and respond accordingly. |
| A．Machines Become Emotional | B．Robots Inch to Feeling Pain |
| C．Human Feelings Can Be Felt | D．New Devices Touch Your Heart |
2 . To develop one's taste in English, the most effective way is to read English books extensively. Yet one may be at a loss to choose the appropriate books, especially as a beginner. As a native Spanish, I would like to share some of my experience.
My first English novel was Jane Austen's Pride and Prejudice, recommended by many English teachers and professors as an ideal book for English learners. But my experience was somewhat disastrous. I had great difficulty in understanding the novel, let alone enjoying it. It's not the vocabulary that troubled me, but rather the way Austen constructs sentences, and her way of thinking, which seemed too remote to me at that time. My fading enthusiasm was much recovered after reading Hemingway's novel A Farewell to Arms. No long and complicated sentences. And I particularly liked his brief and straightforward (简洁的) style. So my first suggestion is, as a beginner, you'd better choose contemporary novels instead of classical ones.
However, if you restrict yourself to novels you will miss a lot of treasures. English essays can at once inform you, entertain you, and improve your taste in English. The best example is Bertrand Russell's work. Its language is plain, yet you cannot help feeling the elegance and the peculiar sense of humor. His simple language enables his philosophy within the reach of ordinary people. Here comes my second suggestion — essays are indispensable.
Never follow others' recommendations and opinions blindly, however famous or influential (有很大影响的) the person might be. We should be open to various ideas, but always think and determine for ourselves. As a saying goes, one man's meat is another man's poison. With that in mind, we are bound to find out our favorite writers through reading and develop our fine taste in English.
1. What made the first English novel that the author read hard to understand?| A．Complicated conversations. |
| B．Sentences and Austen's thinking pattern. |
| C．The old-fashioned vocabulary. |
| D．Not knowing the social background. |
| A．Necessary | B．Challenging | C．Relevant | D．Inspirational |
| A．Choose books that challenge us most. |
| B．Read books that are instructive. |
| C．Don't be affected by others' choices. |
| D．Compare books before buying. |
| A．Give comments on literature works. |
| B．Tell beginners how to choose English books. |
| C．Encourage people to read more English books. |
| D．Recommend first class books to English learners. |
3 . If you're out for a run, what difference does it make if you're able to tough it out for another 50 seconds? If you're less than a minute from the top of the hill, that extra time can make the difference between having reached your goal and snatching defeat from the jaws of victory.
How do you get those extra seconds of energy? A research team at the Texes Tech University developed a study to measure what effect listening to music would have on exercise tolerance. The researchers based the study on a stress testing. As part of the testing, they noted any changes in heart rate and blood pressure as participants underwent physically stressful exercise.
The tests were done on treadmills (跑步机), which increased in both speed and incline (坡度) through three stages. In the final stage, the treadmills moved at 10 miles per hour at a 14-percent grade. Most of these tests were designed to last up to 40 minutes. The average gym-goers lasted 30 minutes. For this study, they divided 127 participants into two groups. One listened to upbeat(快节奏) music, while the other group had earbuds in but did not listen to music.
The group that listened to music was able to outlast the non-music group by an average of 50.6 seconds. Again, being able to go an extra minute may seem like a no-brainer ,but “after 30 minutes, you feel like you are running up a mountain, so even being able to go 50 seconds longer means a lot," said the study's lead author, Waseem Shami, MD.
The study has confirmed something runners and gym-goers have suspected for years: Listening to music during workout can be beneficial to your endurance. "Our findings reinforce the idea that upbeat music can help you exercise longer and stick with a daily exercise routine," said Shami. When doctors are recommending exercise, they might suggest listening to music, too."
1. Why did Shami’s team conduct the research?| A．To test the effect of music on health. | B．To know the cause of failure in sports. |
| C．To improve runners' exercise tolerance. | D．To record the body change of participants |
| A．They ran much faster than average runners. | B．They created a new record of indoor sports. |
| C．They could run a little longer with music on. | D．They all enjoyed extreme physical challenge |
| A．A dull activity. | B．A foolish action. |
| C．A demanding task. | D．An easy practice |
| A．Developing a daily exercise routine. | B．Listening to music while working out |
| C．Participating in physical stress testing. | D．Taking exercise as doctors recommend. |
4 . The bad health effects of sleep loss during the week can’t be repaid by longer weekend sleep, according to a new study.
Researchers have long known that sleep deprivation (剥夺) can cause weight gain and increase other health risks. But for those who force themselves out of bed every weekday after too few hours of shut eye, they hope turning off the alarm on Saturday and Sunday will repay the weekly sleep debt and remove any ill effects.
The research, published in Current Biology, crushes those hopes. Despite complete freedom to sleep during a weekend recovery period, people in a sleep lab who were limited to five hours of sleep on weekdays gained nearly three pounds over two weeks and experienced disorders that would increase their risk for diabetes over the long term. While weekend recovery sleep had some benefits after a single week of sleep loss, those gains were wiped out when people fell right back into their same sleep deprived schedule the next Monday.
''If there are benefits of catch-up sleep, they're gone when you go back to your daily schedule. It's very short lived'', said Kenneth Wright, director of the sleep and chronobiology lab at the University of Colorado at Boulder. ''These health effects are long term. It's kind of like smoking once was-people would smoke and wouldn't see an immediate effect on their health, but people will say now that smoking is not a healthy lifestyle choice. I think sleep is in the early stage of where smoking used to be.''
Wright said that the study suggests people should put sleep in the first place cutting out the ''sleep stealers'' such as watching television shows or spending time on their phones. Even when people don't have a choice about losing sleep because of child-care responsibilities or job schedules, they should think about getting sleep in the same way they would get a healthy diet or exercise.
1. What does the underlined word ''rushes'' mean?| A．Ruins. | B．Guarantees. |
| C．Deepens. | D．Arouses. |
| A．Smoking is more harmful than sleep loss. |
| B．Weekend recovery sleep has many benefits. |
| C．Smoking and sleep loss have the same bad effects. |
| D．It takes long for people to see the effects of sleep loss. |
| A．Take regular exercise every day. |
| B．Reduce the screen time before sleep. |
| C．Watch some TV shows before bedtime. |
| D．Sleep as long as possible during weekdays. |
| A．To share some unhappy experiences. | B．To show some unknown facts. |
| C．To promote a healthy lifestyle. | D．To introduce a new study. |
5 . Laura Sides was a psychology major at the University of Nottingham in 2004. She first noticed signs of her dad’s developing dementia(痴呆) when she moved to Nottingham. She said, "Dad was a doctor, so he knew exactly what had happened to him, but people try to hide it when they are ill. Then, I came home for my 21st birthday and arranged to meet him, but he never showed up as he’d forgotten. That’s when I knew something serious had happened."
So, aged 21, she decided to leave university and look after him herself. She lived close by, popping in every day to make sure he was eating, and that the house was tidy, before heading off to her work.
Besides challenging moments, there was a time when looking after her dad was a pure joy. "We’d wake up, I’d ask what he wanted to do that day, and however ridiculous the adventure is, off we’d go."
Sadly, in 2009, 5 years later, Laura lost her father. Before he died, Laura went to a hospital appointment with him, where doctors mentioned that his form of Alzheimer’s disease was genetic meaning there was a fifty-fifty chance that she had inherited it. For several years Laura agonised over whether to be tested, finally finding out in August 2017 that she has the APP gene, meaning that, like him, she will develop the condition within a decade.
At first, she struggled, feeling as if her life lacked purpose. Then, during a sleepless night in the summer of 2018, she decided at around 2 a.m. to enter the 2019 London Marathon sponsored by the charities Alzheimer’s Society and Alzheimer’s Research UK.
She hoped to start the conversation around early-onset Alzheimer’s disease and to encourage people to talk about it more openly. "I remember when Dad was ill, people wouldn’t know how to react, but I want to be honest and open," she added. "The more information we can get, the less of a taboo(忌讳) we will feel. That said, the support I’ve received so far after going public has been amazing — that’s what is carrying me through."
1. Laura noticed her father’s dementia when .| A．her father told her his condition in person |
| B．people nearby informed her of his father’s condition |
| C．her father forgot his own birthday party |
| D．her father forgot to attend her 21-year-old birthday party |
| A．excited | B．struggled |
| C．shocked | D．delighted |
| A．getting people to talk about Alzheimer’s disease openly |
| B．earning some money to help treat her Alzheimer’s disease |
| C．making herself stronger to fight against Alzheimer’s disease |
| D．raising funds for charities Alzheimer’s Society and Alzheimer’s disease Research UK |
| A．Caring and positive. | B．Careful and honest. |
| C．Patient and cautious. | D．Devoted and modest. |
6 . Everybody, at some point in their lives, has experienced failure. It could be something as simple as not getting the job you wanted, or getting fewer marks even after hard work. But what makes you is not your failure, but how you get back up after being hit.
Once, a young school boy was caught in a fire accident in his school and was assumed that he would not live. His mother was told that he was sure to die, for the terrible fire had destroyed the lower half of his body. Even if he were to survive, he would be lame throughout his life.
But the brave boy did not want to die nor did he want to be lame. Much to the amazement of the doctor, he did survive. But unfortunately from his waist down, he had no motor ability. His thin legs just hung there, lifeless. Eventually he left the hospital. But his determination to walk was unshakable. At home, when he was not in bed, he had to stay in a wheelchair. One day, he threw himself from the chair and pulled himself across the grass, dragging his legs behind him. He reached the fence, raised himself up and then began dragging himself along the fence, firmly determined. He did this every day, with faith in himself that he would be able to walk unaided. With his iron determination, he did develop the ability to stand up, then to walk on and off, then to walk by himself and then to run.
He began to walk to school, and then run to school, to run for the joy of running. Later in college he was on the track team.
In February 1934, in New York City’s Madison Square Garden, this young man who was not expected to survive, who would surely never walk, who could never hope to run — this determined young man, Dr. Glenn Cunningham, ran the world’s fastest mile.
A good example of the power of positive(积极的) thinking and faith in oneself, Glenn Cunningham continues to be an inspiration for many, and his story, a brilliant evidence to how one can bounce back even when all difficulties are piled against one, to the degree that death seemed the preferable choice.
1. What was the doctor’s opinion about Glenn?| A．There was a little chance that Glenn could survive. |
| B．Great determination could make a difference to Glenn. |
| C．Glenn was able to walk with his own great effort |
| D．Glenn could live a normal life with the upper half of his body. |
| A．for himself | B．without help |
| C．with disability | D．without hesitation |
| A．Glenn took recovery exercise in hospital. |
| B．Glenn inspired people with his moving story. |
| C．Glenn won the first place in Marathon. |
| D．Glenn organized a track team in college. |
| A．Stand up after failure | B．Strengthen determination |
| C．Go after dreams | D．Face difficulty bravely |
7 . Mary Anning was an English fossil collector, dealer and paleontologist(古生物学家). Her fossil-hunting helped change the way people thought about the world.
Mary was born into a poor family in England on May 21, 1799. She lived in the seaside town of Lyme Regis, in Dorset. The family had nine children. Only Mary and her brother Joseph grew up. Mary’s father took his children along the beach. They picked up shells and stones to sell to visitors. Mary did not go to school much. Her family was too poor. And schools did not teach children about fossils. Mary could read and write. She taught herself. She learned about rocks and how bodies are made.
In 1811 when Mary and Joseph were fossil hunting, Joseph saw a bone sticking out of the rock. Mary had a hammer to chip away at the rock. Very carefully she uncovered it. She found the first complete fossil of the ichthyosaur(鱼龙).
Since then, Mary became crazy about fossil hunting. She liked to hunt on the beach after a storm. The wind, rain and waves made the rocks crumble It was easy to spot fossils. Most days Mary went fossil hunting with her dog, Tray.
Rich friends helped Mary by selling fossils for her. They sent her money. Scientists wrote letters and came to see her. One good friend was William Buckland, a professor at Oxford University. Mary also opened a shop to sell fossils, stones and shells. She chatted with visitors.
Mary Anning died inl847. How evolution(进化)works was explained by Charles Darwin not long after Mary died. Her fossils had helped scientists understand how things began.
1. Why did Mary’s father take his children along the beach?| A．To enjoy life. | B．To make a living. |
| C．To look for fossils. | D．To teach them about fossils. |
| A．Her father was a paleontologist. | B．Her father educated her at home. |
| C．She had nine brothers and sisters in all. | D．She might be popular at that time. |
| A．Charles Darwin. | B．Mary’s dog. | C．Mary. | D．Joseph. |
| A．break | B．shake | C．float | D．dive |
