1 . Experiencing occasional anxiety is a normal part of life. However, anxiety disorders, defined by extreme fear, restlessness, and muscle tension, can increase the risk for
They are some of the most common mental health conditions around the world,
People with anxiety are more likely to miss days from work and are less
My team and I at the University of Cambridge wanted to find out who is most affected by anxiety disorders. To do this, we conducted a systematic
Our results showed women are almost twice as likely to
So why are women more
This is
Other studies suggest that women are more likely to
A.symptom | B.depression | C.misery | D.frightening |
A.infecting | B.stimulating | C.capturing | D.affecting |
A.productive | B.progressive | C.positive | D.passive |
A.adventures | B.insurances | C.chances | D.programs |
A.conclusion | B.attention | C.solution | D.contribution |
A.ignorance | B.outlook | C.discovery | D.review |
A.suffer from | B.deal with | C.fight against | D.result from |
A.superior | B.inferior | C.vulnerable | D.enormous |
A.interacted | B.associated | C.disconnected | D.inherited |
A.challenge | B.decline | C.eliminate | D.increase |
A.characterized | B.confused | C.performed | D.offended |
A.equally | B.similarly | C.differently | D.terribly |
A.shortcuts | B.strategies | C.standards | D.samples |
A.because | B.unless | C.if | D.while |
A.experience | B.accept | C.ignore | D.persist |
Robot Chef Learns to Twirl (旋转) Pizza Like a Pro
Pizza has a proud history of fueling late-night lab work, and scientists in Naples—an Italian city famous for its pizza—have easy access to some of the world’s tastiest take-out. But what inspires engineer Bruno Siciliano is not that first bite
“Preparing a pizza involves an extraordinary level of agility and dexterity (敏捷和灵巧),” says Siciliano, who directs a robotics research group at the University of Naples Federico Ⅱ. Stretching a deformable object like a lump of dough (面团) requires an accurate and gentle touch. It is one of the few things humans can handle, but robots cannot—yet.
Siciliano’s team
RoDyMan has been working this spring toward a milestone: stretching the dough
RoDyMan uses visual sensors in its head to track the dough in real time. Using software, it can train
Yet Siciliano admits that
3 . What will the development of quantum computers (量子计算机) mean for our civilizations? Oh sure, better cryptography (密码方式), “more powerful” processing, but bottom line, we just don’t know...yet.
This phenomenon isn’t unique to quantum computing, of course. It’s something we see time and again with all new world-changing technology. In some ways, it’s how we can define a technology as world-changing: everyone agrees it’s going to be hugely important, but nobody can predict exactly what impact it will have.
The internet remains the classic example. Although invented in the 1960s, even by the late 1990s, the internet was still being dismissed as something that is fashionable but unlikely to last. Most commentators thought it nothing more than a curiosity.
There’s a famous 1999 interview between David Bowie and BBC journalist Jeremy Paxman. In it, Bowie predicts that the internet will change the nature of music, and remove the “barriers between creator and audience”. The longer he spoke, the more Paxman said in anger that Bowie could possibly believe this about the internet.
To be fair to Paxman, in 1999, internet at home meant accessing it over a modern. Concepts like WeChat and Netflix and more simply could not work over such limited bandwidth. But there were still some people who assumed that bandwidth would increase and that streaming music and video would be possible soon enough. They were laughed at.
Oddly enough, as the dot-com boom intensified, many turned from doubters to hopeless optimists, and lost serious money building websites to deliver content that simply couldn’t “fit” down the inter-tubes of the day.
Then in the second decade of the 21st century: critical mass. Bandwidth increased massively. Forget showing a nice little video in your browser, today Netflix can serve you a TV show in 4K, as long as you have 25Mbps connection.
Quantum computing isn’t a consumer technology, of course. It’s a much bigger deal than that. Quantum computing is more like the invention of the transistor (电子晶体). Sure, most people have heard of it, but few understand it. Actually, we don’t even really understand it. But we’re reasonably comfortable that when a lab has that many scanning electron microscopes, it must be doing something important, right?
Quantum computing is still at the stage of “hit it with a hammer until it works”. Sure the hammer is microscopic, and also a laser or magnetic field of some kind, but the point is we’re going through the process of turning the idea into reality.
Sooner than you think, though, qubit-based computers are going to get applied to stuff. What stuff? Like always, it will be super secret stuff first. Then it will reach the rest of us.
This is how the world begins. Not with a bang, but with a lot of extremely hard work behind the scenes.
1. What attitude did most people take towards the internet in the 1990s?A.Optimistic. | B.Unconcerned. | C.Doubtful. | D.Defensive. |
A.it is hard to define what is world-changing technology |
B.the internet was universally acknowledged as important |
C.the influence of new technology is usually unpredictable |
D.the internet inspired many debates in the following years |
A.has been questioned | B.has been fully understood |
C.hasn’t been heard of before | D.hasn’t been applied to practice |
A.Its development is a gradual process. | B.Most is the brainchild of a scientist. |
C.Not all is accessible to the public. | D.Its future is often a top secret. |
4 . One of the most well-known figures of American history, Thomas Jefferson was the third President of the United States and the author of the Declaration of Independence. His life was an inspiring one and at the same time a little bit contradictory to his statements and way of living life, and thus he has formed the subject of a lot of authors’ books.
Jefferson and his time
| This is a Biography of the life of Jefferson published in 6 volumes over a very long period of 34 years staring from 1948 till 1982. Read it For: It is an entire collection introducing all aspects of Jefferson’s life in great details from his childhood till his last days. For history enthusiasts, this is a wonderful book that will give you insight into the life of one of the most memorable American leaders. Don’t Read it For: This series is a biography and strictly a work of non-fiction. It is reading about the life of a person and might get boring for some. |
American Sphinx
| An interesting yet strange book, this piece of writing is not an attempt to shed light on the life of Jefferson but rather an attempt to understand his mind. Jefferson was one who spoke something but did the complete opposite of it. Read it For: This book tries to analyze Jefferson’s life but does not do it in a way that criticizes him or idolizes him. This National Award winning book perfectly balances the act of examining someone’s acts and general behavior and trying to figure out the reason behind his contradictory statements and acts. Don’t Read it For: If you are searching for a book about Jefferson’s life, this is not for you. It covers a few events of his life, not his entire life. This Political Biography by Meacham takes you on a journey into the world that Jefferson lived in and saw it through his eyes. It shows how Jefferson formed the world around him and handled situations and people to shape the American political system as it is today. |
The Art of Power
| Read it For: The depth with which this book is written is commendable. It is noted that the work done by Meacham in this book puts you inside Jefferson’s head and makes you understand what it would be like to be Jefferson. Don’t Read it For: While this book shows the genius of Jefferson, it can come off as bias, showing Jefferson in a very positive light and his opponents in a very negative light. |
A.“Jefferson and His Time” | B.“American Sphinx” | C.“The Art of Power” | D.none of the above |
A.learn how Thomas got through his childhood in details |
B.understand why Thomas’ words and deeds were not always matched |
C.know how ordinary people criticize or idolize him |
D.learn how Jefferson formed the world around him and addressed situations |
A.may feel bored while they are reading it |
B.cannot get a complete description of Thomas’ life |
C.learn Thomas’ political life mainly from historians’ perspective |
D.cannot get an objective point of view about Thomas’ gift |
5 . Earlier this year I took a trip to England and France to go see some friends. It was a wonderful trip; I really loved it. But one thing that struck me was how different these cultures are from our own. I guess this would strike any traveler because that is the first thing you notice and it is what makes travel so exciting. Of course, these cultures are also similar to ours in many respects, but it’s the differences that really stand out.
One of the things that struck me in particular was the different attitudes towards smoking. As you know, there’s a growing anti-smoking sentiment in Europe. However, when I went to England and France, I got a new perspective on this issue. People seem to smoke anywhere and everywhere, even though anti-smoking signs are all over public places. On the radio, I heard about a member of the World Cup soccer team who smoked. And people were actually saying, “Well, he should not be on the team because he’s a bad example for our children.” I think, if they want to look at bad examples for their children, they should just go out on the street, or go into the subways, or look in the mirror, even, because so many of them are smoking in very inappropriate places. I visited a restaurant buffet in London and saw an English woman scooping up the food with a lit cigarette in her hand. Smoke rising into the air. Actually, when I talked to English people later, they were pretty shocked too, and they said that smoking in a restaurant is rude even by British standards.
This did not give me a bad impression of English people. It gave me, on the contrary, a positive feeling toward American smokers. There are a lot of American smokers who will proclaim their right to smoke whenever they want, but they will follow the rules, generally, because they have consideration for nonsmokers. So this experience in Europe gave me more of a respect for this kind of smoker.
1. What surprised the writer during his trip to England and France?A.The wonderful trip to England and France. |
B.Cultural differences that he noticed during his trip. |
C.Similarity between cultures stands out more than differences. |
D.Growing anti-smoking views in Europe. |
A.People discuss the smoking issue on the radio. |
B.Smokers are allowed to smoke anywhere and anytime. |
C.People are encouraged to smoke in inappropriate places. |
D.Many smokers pay no attention to the “No Smoking” signs. |
A.feeling | B.movement | C.offense | D.regulation |
A.Those who are from America and Europe. | B.Those who respect others’ feelings. |
C.Those who defend the right to smoke. | D.Those who set rules of smoking in public places. |
6 . It was a cold night in Washington, D.C., and I was heading back to the hotel when a man approached me. He asked if I would give him some money so he could get something to eat. I’d read the signs: “Don’t give money to beggars as most of them are swindlers.” So I shook my head and kept walking.
I wasn’t prepared for a reply, but with no hesitation, he followed me and said, “I really am homeless and I really am hungry! You can come with me and watch me eat!” But I kept on walking.
The incident kept bothering me for the rest of the week. I had money in my pocket and it wouldn’t have killed me to hand over a dollar or two even if he hadn’t been a real beggar. On a freezing cold night, no less, I assumed the worst of a fellow human being.
Flying back to Anchorage, I couldn’t help thinking of him. I tried to reason my failure to help by supposing government agencies, churches and charities were there to feed him. Besides, you’re not supposed to give money to beggars.
Somewhere over Seattle, I started to write my weekly garden column for The Anchorage Daily News. Out of the blue, I came up with an idea. Bean’s Cafe, a local charity service kitchen, feeds hundreds of hungry local people every day. Why not try to get all my readers to plant one row of vegetables or flowers in their gardens for Bean’s? Plant a row for Bean’s. It’s clean and simple.
We didn’t keep records back then, but the idea began to take off. Folks would fax me or call when they took something in. It’s food for the spirit and comfort for my conscience.
In April 1995, the Garden Writers Association of America(GWAA) held their annual meeting in Anchorage and after learning our program, Plant a Row for Bean’s became Plant a Row For The Hungry. The idea then was to have every member write or talk about planting a row for the hungry, which brought the program to national attention.
As more and more people participated, new variations cropped up. Many companies gave free seeds to customers and displayed the logo for the program. Donations poured in. It was then that I could really stop feeling guilty.
1. The underlined word “swindlers” in the first paragraph is closest in meaning to ______.A.policemen | B.writers | C.cheaters | D.beggars |
A.Because he didn’t show fair respect to a beggar treating him badly. |
B.Because he could have helped a hungry man but he passed by. |
C.Because he believed that no people begged because of real hunger. |
D.Because he thought that charity work was the government’s duty. |
A.He set up a local kitchen to help the poor. |
B.He planted a row of vegetables for charity. |
C.He called on people to donate money to the Bean’s. |
D.He initiated the idea of Plant a row for Bean’s. |
A.The beggar gave up the first time he was turned down by the author. |
B.The author invented the program inspired by the Anchorage Daily News. |
C.GWAA expanded the program concept and made it nationwide in 1995. |
D.The program was later taken over by some seeding companies. |
A. marriage B. hesitation C. complicated D. happening E. guilty F. celebrating G. duty H. performed I. famous J. disrespectful K. profited |
Hamlet is the most
The character of Hamlet has a personal, painful quality that still draws readers and playgoers today as it did 400 years ago. The problems he faces, such as what is
Hamlet is the young prince of Denmark. At the beginning, he is sad about his dead father. Everyone else around him is
Hamlet is told that a spirit has been walking around Elsinore castle. He meets it and it says that his father was killed, and by his brother Claudius — it was “murder most horrid (可怕的)”! Now, the ghost instructs him, it is his
Hamlet is in a terrible position. He does not know whether the ghost is who he says he is, or a being sent by the devil (魔鬼). Matters are
Hamlet has a play performed for the king which stages the way the ghost told him of his father’s murder. Claudius reacts with horror, proving to hamlet that he is
He tells Gertrude he hates her
Cunning (奸诈的) Claudius attempts to play Lacerates and Hamlet against each other, and in the final scene it all goes horribly wrong.
One
Despite the popularity of dieting and exercising, more people are bigger than they used to be.
The US is the
So why are so many Chinese getting overweight?
According to The Wall Street Journal, China’s weight has grown with its economy. With incomes growing, families
Unhealthy lifestyles also contribute to China’s obesity problems. Many Chinese families are eating more deep-fried and junk food while exercising little.
It is also likely
The trend could lead to big problems, as obesity can have severe health consequences. According to the World Health Organization, around 2,8 million adults die each year
Mohandas Karamchand Gandhi, more commonly
She used to visit a temple regularly. Gandhi used to accompany her to the temple.
Both Gandhi and his mother were deeply religious although they were not scholars. Many religious visited their house and
10 . Sometimes people recall past events differently from how they happened. Have you ever confused dates and events from your life, or people’s names? Don’t be too hard on yourself if this is the case; it happens to almost everyone. Every day, our brain processes an amazing amount of information. In fact, all our experiences are based on the way our brain interprets the information it receives from our senses. It is impossible to store all of this information, so some of it gets lost. The parts that remain make up our memories. All our thoughts and memories depend on the way our senses work, and we cannot always trust everything our senses tell us.
If you have ever tried to make your own short film on a digital camera, you will have noticed that the images you record are often blurry(模糊不清). To stop the same thing from happening when we see things with our own eyes, our brain is always filling in the blanks. Before our eyes can even focus on an object, our brain has created its own picture of it so that we can move smoothly from looking at one thing to another without the world looking strange. If we are moving quickly or are not focusing properly, our brain may not correctly guess what is around us.
Memory is the way we store the information that our senses have experienced. As we have discussed above, our senses do not always see things accurately, so our memory is just how we store our interpretations of these experiences. When our brain takes in new experiences, it uses the information we retrieve from our memory as a reference. This means that we often do not remember the details of things but just the important parts. When we look at something, we often do not really look closely at it, but we merely look at the different hints that help us identify it.
This also happens with our hearing and speaking. It is natural for students of English to confuse the word “kitchen”, with the familiar word “chicken”. As the sounds are similar, the mind mistakenly identifies the new word with the one that is familiar. This is perhaps the most common reason why people make mistakes when they learn a new language.
1. Sometimes things people remember are quite different from how they really happened because ______.A.not all people are smart enough | B.the main part of the information gets lost |
C.people are too strict with themselves | D.information was processed incompletely |
A.images recorded by cameras could not be accurate |
B.brain may form an imagery picture without reference |
C.blurry pictures are caused by too fast camera movements |
D.the process of vision is an interpretive construct by the brain |
A.recall | B.change |
C.borrow | D.differ |
A.Memory is exactly what senses have experienced. |
B.Memories are made up of the information remaining in minds. |
C.Memory is the way to store information experienced by senses. |
D.Memories sometimes can be obstacles to learning something new. |