What can we infer about those mummies?
| A．They had their own characteristic in culture. |
| B．Their genes had much in common with their neighbors. |
| C．They seemed to isolate themselves from other groups. |
| D．They developed faster than others. |
2 . Cybercrime refers to any criminal offence related to the Internet. Internet crimes have been classified into four categories. First, they can be related to a lack of proper Internet security, such as downloading or deleting other people’s files without permission, and spreading computer viruses. The second are crimes usually committed without a computer, but can occur over the Internet. For some criminals use the Internet to cheat others of their money. Third, websites which offense information or encourage hatred and violence are named. Last, there are related to intellectual property (intellectual property is a design, patent, book, etc. law prevents other people from copying).
All Internet users are affected by cybercrime in one way or another. However, crime against a private organization in the USA, showed that 45.6 percent of the 351 biggest company government agencies had had their security systems broken into in the previous year. Security consultants tell us that cybercrime is costing firms worldwide hundreds of billions of dollars every.
Considering how bad the situation with cybercrime against companies has become, many people wonder why so little is known about this. The main reason is that most cybercrime is not reported. Until now, most companies have been unwilling to report cases of cybercrime. They fear that by doing so, they will lose customers, who may think that the company cannot protect their confidential information or their money.
All of this is made more difficult by the legal situation regarding cybercrime. Cybercrime is so new that many governments have not yet passed laws against it, and there are many holes in the legal systems. In addition, most countries do not have arrangements for dealing with suspects from other countries who may have committed cybercrime. Thus, it is difficult to catch criminals of cybercrime.
The only answer to this problem is international cooperation. Governments must join forces to keep up with the advances in technology used by the criminals. It is also important to draft new laws and negotiate international standards for fighting cybercrime.
1. Which of the following can be considered as cybercrime?| A．Copying others’ public files. | B．Creating computer virus. |
| C．Sending hatred words to a friend. | D．Stealing from online banks. |
| A．By comparing the changing numbers. | B．By listing the survey data. |
| C．By analyzing the heavy loss. | D．By adding background information. |
| A．Legal. | B．Valuable. | C．Private. | D．Correct. |
| A．Countries work together following the same law. |
| B．Abroad cybercriminals should be sent back. |
| C．The lawyers should learn more about laws. |
| D．The government should flow the law. |
3 . A character in one of Shakespeare's plays once said, "Some are born great, some achieve greatness, and some have greatness thrust upon them." Any of these could apply to the modern day sportsmen. Many still argue about the nature of talent. Some claim that people are born to be sportsmen, while others say it is only through devotion and hard work that they achieve their abilities. Arguably though, it is not until their talents are acknowledged by the public that they truly have greatness fallen upon them.
With this acknowledgement of their "greatness" come all the trappings of modern day celebrity：money, power, influence and responsibility. For better or for worse, like it or hate it, modern sportsmen are the role models of children everywhere. These children will grow up admiring their heroes, devoting their lives to copying their every move, and wanting above all to be like them. Due to this fascination，particularly with the massive influence of the media, it is more important than ever for these sportsmen to acknowledge their responsibility.
In the past few months alone, there have been many examples of questionable behaviors from sports icons. Sport stars of the present day are often mirroring the very worst aspects of society, a fact that the self-righteous(自以为是的) anger of the modern press has been quick to point out. It would be wrong for us to expect sportsmen to be saints. It would also be wrong for us to think that their behavior is markedly different from the sportsmen they grew up watching, but with the all-seeing eye of modern media it is a different world，and different standards must be expected.
Of course there is no obligation for sportsmen to be good role models. There are no prison sentences, no fines, no community service—unless their behaviors are illegal. Unless they break the law, it is entirely up to them as to whether or not they think their behavior is appropriate. Furthermore, measuring the true influence their decisions have on their followers is absolutely impossible. Some will rise against their idols, seeing them in a new light and condemning their actions. Others may copy their heroes' actions, using them as a shield when accused of the same crimes.
It is undeniable that the actions of sportsmen will influence the lives of those who worship them. Modern day sportsmen are almost ideals of today's world, and their actions are watched carefully by millions over the world. Some may complain against it, denying their influence on these children's lives. Others may be aware of it but not respect it, while many may both be aware of it and respect it. In a word, you do not choose whether you are a role model. All you can do is to decide how to act when greatness is thrust upon you.
1. In Paragraph 1, the author tries to emphasize________.| A．sportsmen become great when their gifts are recognized by people |
| B．sportsmen achieve greatness through their devotion and efforts |
| C．different ways for sportsmen to achieve success and greatness |
| D．the core characteristic to become great sportsmen nowadays |
| A．role models usually have positive influence on their fans |
| B．sportsmen have the right to behave freely within the law |
| C．all the fans will follow their heroes' actions |
| D．no obligation is given to sportsmen |
| A．palled off | B．removed from | C．related to | D．forced on |
| A．To advise the media to choose proper events to report. |
| B．To inform the public that sportsmen are no role models. |
| C．To remind the sportsmen of their social responsibilities. |
| D．To argue that sportsmen should not be expected as herons. |
4 . How do you turn “dumb” headphones into smart ones? Rutgers engineers have invented a cheap and easy way by transforming headphones into sensors that can be plugged into (插入) smartphones, identify their users monitor their heart rates and perform other services.
Their invention, called HeadFi, is based on a small plug-in headphone adapter that turns a regular headphone into a sensing device (装置). Unlike smart headphones, regular headphones lack sensors. HeadFi would allow users to avoid having to buy a new pair of smart headphones with sensors to enjoy sensing features.
“HeadFi could turn hundreds of millions of existing, regular headphones worldwide into intelligent ones with a simple upgrade (升级),” said Xiaoran Fan, a HeadFi primary inventor.
A Rutgers-led paper on the invention, which results in "earable intelligence", will be formally published in October at MobiCom 2021, the top international conference on mobile computing and mobile and wireless networking.
Headphones are among the most popular wearable devices worldwide and they continue to become; more intelligent as new functions appear, such as touch-based gesture control, the paper notes. Such functions usually rely on aiding sensors, such as accelerometers, gyroscopes and microphones that are available on many smart headphones.
HeadFi turns the two drivers already inside all headphones into a versatile (多功能的) sensor, and it works by connecting headphones to a pairing device, such as a smartphone. It doesn't require adding aiding sensors and avoids changes to headphone hardware or the need to customize headphones, both of which may increase their weight and size. By plugging into HeadFi, a converted headphone can perform sensing tasks and play music at the same time.
The engineers conducted experiments with 53 volunteers using 54 pairs of headphones with prices ranging from $2. 99 to $15 ,000. HeadFi can achieve 97. 2 percent to 99. 5 percent accuracy on user identification , 96. 8 percent to 99. 2 percent on heart rate monitoring and 97. 7 percent to 99. 3 percent on gesture recognition.
1. What does Xiaoran Fan think of HeadFi?| A．Secure to operate. | B．Simple to use. |
| C．Easy to substitute. | D．Convenient to store. |
| A．It can't work with headphones alone. |
| B．It actually functions as a versatile sensor. |
| C．It makes headphones larger and heavier than usual. |
| D．It doesn't work when headphones are playing music. |
| A．the various functions of HeadFi | B．the wide popularity of headphones |
| C．the great complexity of headphones | D．the excellent performance of HeadFi |
| A．How to Use Headphones Appropriately |
| B．Headphones Can Be Upgraded Instantly |
| C．How to Make Regular Headphones Intelligent |
| D．New Uses Have Been Found in Headphones |
5 . Humans have little difficulty recognizing one another. And we know that no two faces are exactly alike. Even identical twins have slightly different faces. Each human face is truly unique, and now we've invented machines that are able to recognize faces for numerous purposes.
Governments, employers and security and police services are increasingly using facial recognition technology. This allows them to quickly confirm an individual's identity. Systems are becoming so advanced that a wanted criminal can instantly be picked out of a crowd of thousands of people. All that's required is an image in a database to compare with the image of any number of people in a crowd. Ordinary people, too, are using facial recognition to unlock their phones, their computers and other devices.
Personal facial recognition protection has several benefits. It is instantaneous, and it relieves us of the need to memorize passwords. However, a device will require a password in the rare event that it doesn't, for whatever reason, recognize the user's face.
There are numerous concerns about the use of facial recognition. Primarily, the concern is that it threatens privacy. The installation of more and more cameras in public and private places is now part of everyday life. This means people can be observed and recognized wherever they go. Cameras may make public spaces safer, but keeping law-abiding(守法的) citizens under constant watch is disturbing to many.
In the age of the coronavirus and the widespread wearing of masks, facial recognition systems are having some difficulty. A mask covers many of the facial data points used by recognition software to confirm a person's identity. In response, facial recognition systems are being trained to use less facial data. That could affect how dependable it is as a method of identity detection.
1. What's the author's purpose of writing Paragraph 2?| A．To further explain the importance of facial recognition. |
| B．To describe the powerful functions of facial recognition. |
| C．To list in detail various advantages of facial recognition. |
| D．To state the unique advanced features of facial recognition. |
| A．The cameras may be occasionally out of order. |
| B．Too many cameras disturb people's daily life. |
| C．People's personal life might be exposed to others. |
| D．The cameras make law-abiding citizens feel stressful. |
| A．Getting more accurate with less information. |
| B．Becoming faster with more facial data. |
| C．Protecting personal information if necessary. |
| D．Responding more quickly to unexpected events. |
| A．The wide popularity of facial recognition. |
| B．The rapid development of facial recognition. |
| C．The benefits of facial recognition. |
| D．The introduction to facial recognition. |
6 . These days there is so much tempting technology to look at: smart phones, tablets, computer games and TV screens. Much of children's entertainment and education comes from using them, so it's no wonder they spend so much time staring at them. But even if the saying that looking at a screen for too long gives you square eyes isn't true, there is still some concern. So, should we be worried?
Certainly for children who spend hours glued to a screen, there is a concern that their health might be at risk. Also there is a fear that their eyesight is declining too. Although there's not much evidence to prove this yet, recent findings have brought the problem into light.
Chris Hammond, consultant at St Thomas' Hospital, says “We find short-sightedness is becoming more common It has greatly spread in East Asia, Singapore, Taiwan, South Korea where approaching 90 of 18-year-olds are now short-sighted.”
But can this be linked to children's obsession with using electronic gadgets? Annegret Dahlmann, expert at Moorfields Eve Hospital in London. says lack of natural light seems to be the key issue. She's suggested that children in East Asia study a lot, using computers, smart phones or tablets, and they go outside less. Wearing glasses is one solution, but it's not ideal.
This leads to a dilemma: achieving short-term academic success or protecting your long-term eyesight. It's always going to be a challenge to drag children away from their screens and it's likely that more and more studying will be done online. But despite that, Professor Hammond says. “In countries like urban China, where 10% of children in each class per year are becoming short-sighted from about the age of six. there's an argument for saying we should be trying to prevent it.” It's evidence we can't turn a blind eye to. So, maybe it's time to hit the “off” button and get our children outside?
1. What can we infer from the first two paragraphs?| A．Recent findings have opened our eyes to the issue of eyesight. |
| B．Looking at a screen for too long will get you square eyes. |
| C．It has been confirmed that children's eyesight is failing. |
| D．Using electronic gadgets affects children's education. |
| A．Wearing glasses. | B．Heavy school work. |
| C．Lack of natural light. | D．Booming technology. |
| A．Learning online or offline. |
| B．Reading for pleasure or exams. |
| C．Focusing on study or protecting eyesight. |
| D．Protecting eyesight or promoting technology. |
| A．Study hard. | B．Head outdoors. | C．Quit computer. | D．Challenge more. |
