1 . The joy of giving is real, according to a study. Research presented in the Journal of the Association for Psychological Science shows that those who give gifts are happier — and happier for longer — than those who receive gifts.
Researchers conducted two studies last year. In one，participants were given $5 every day for five days and were required to spend the money on the same thing each day. Some participants were required to spend the money on themselves, while others were required to give to make a donation to charity. In a second experiment that was done online, participants played 10 rounds of a word puzzle game and each won 5 cents per round, which they could keep or donate.
In both experiments, participants reported their overall happiness. Those who donated their money showed that their happiness declined at a much slower rate than those who kept the money or spent it on themselves.
The researchers note that when people focus on an outcome, they can easily compare outcomes, which may diminish their sensitivity to each experience. When people focus on an action, they may focus less on comparison and instead experience each act of giving as a unique happiness-inducing event. Further analyses ruled out some potential alternative explanations, such as the possibility that participants who gave to others had to think longer and harder about what to give, which could promote higher happiness.
The results are especially interesting because according to one of the researchers, Ed O’Brien of the University of Chicago Booth School of Business, they conflict with past research. “If you want to sustain happiness over time, past research tells us that we need to take a break from what were currently consuming and experience something new. Our research reveals that the kind of thing may matter more than assumed: Repeated giving, even in identical ways to identical other，may continue to feel relatively fresh and relatively pleasurable the more we do it,” O’Brien said.
So for all the holiday gifts you give this season, expect to feel happy and know that feeling is going to stick around for a while.
1. What’s the function of the first paragraph?| A．To lead to the topic. |
| B．To highlight the importance of the study. |
| C．To recommend a journal. |
| D．To persuade people to give gifts regularly. |
| A．To challenge the past research. |
| B．To rule out different experimental data. |
| C．To show the benefits of donation. |
| D．To make the conclusion more convincing. |
| A．Develop. | B．Show. | C．Reduce. | D．Lack. |
| A．Gift giving will result in longer happiness than receiving. |
| B．Thinking longer and harder on giving will promote higher happiness. |
| C．The feeling of happiness will disappear soon if people just give holiday gifts. |
| D．Taking a break from what were currently consuming will sustain happiness. |
2 . Experts are warning about the risks of extremely picky(挑剔的)eating after a teenager living on a diet of chips and crisps developed lasting sight loss. Eye doctors in Bristol cared for the 17-year-old after his sight had gone to the point of blindness. Tests showed he had serious vitamin deficiency(缺乏). Dr. Denize Atan, who treated him at the hospital, said, “His diet was basically a portion of chips from the local fish and chip shop every day. He also used to snack on crisps and sometimes white bread and ham, and not really any fruit and vegetables.”
The teenager saw his doctor at the age of 14 because he had been feeling tired and unwell. At that time he suffered from vitamin B12 deficiency, but he did not stick with the treatment or improve his poor diet. Three years later, he was taken to the Bristol Eye Hospital because of progressive sight loss.
He was not overweight or underweight, but he had lost minerals from his bones, which was really quite shocking for a boy of his age. In terms of his sight loss, he met the standards of being blind. “He had blind spots right in the middle of his sight,” said Dr Denize Atan, “That means he can’t drive and would find it really arduous to read, watch TV or recognize faces.”
Dr Denize Atan said that parents should learn about the harm that can be caused by picky eating, and turn to experts for help. For those who are concerned , she advised, “It’s best not to be anxious about picky eating , and instead calmly introduce one or two new foods with every meal.” She said multivitamin tablets can supplement(补充) a diet, but cannot take the place of eating healthily. “It’s much better to take in vitamins through a varied and balanced diet,” she said, adding that too many certain vitamins , including vitamin A, can be harmful ,“so you don’t want to overdo it.”
1. What does Dr Denize Atan imply in paragraph 1?| A．The diet of the boy is not balanced. |
| B．Fruit and vegetables are rich in vitamins. |
| C．Picky eating is common among teenagers. |
| D．The cause of the boy’s disease is unknown. |
| A．To improve his poor diet. |
| B．To get some help to lose weight. |
| C．To be treated for his discomfort. |
| D．To slow down his progressive sight loss. |
| A．Important. | B．Easy. | C．Necessary. | D．Difficult. |
| A．Reasons why the boy is seriously ill. |
| B．Suggestions for the boy’s family to care for him. |
| C．Advice for parents worried about picky eating. |
| D．Ways of taking in enough vitamins and minerals. |
3 . Improve Cloud Security
Sensitive customer data has constantly been found exposed on cloud servers without password protection. To ease the problem, database software makers have been trying to make security easier for cloud database managers. At the Enigma Conference in San Francisco, Kenn White, a security manager at database software maker MongoDB, will describe a new technique, called field level encryption, to make data safer on the cloud.
Field level encryption works by scrambling data before it’s sent to a cloud database and rearranging it in order when the data is needed for use. The promise of the product is to protect the contents of a cloud database, even if bad guys access it.
MongoDB’s new feature comes as more and more companies move user data to cloud servers, rather than run their own costly data centers. It was predicted that cloud computing would be a $214 billion industry by the end of 2019. That would be up more than 17% from 2018, when it was $182 billion.
Companies have rushed to the cloud without understanding all of the possible security consequences. Many companies have left countless databases exposed, revealing personal data. A database containing details about who lives in 80 million US households was left unprotected in 2019, just like the data on Facebook users.
Database managers want to store their data in an unreadable form, but they also want to be able to find specific pieces of information in the database with a simple search term. For example, someone might want to look up health care patients by their Social Security numbers, even if those numbers are stored as random characters. To make this possible, field level encryption lets database managers encrypt a search term on their machine and send it to the database as a query. The database matches the encrypted version of the search term with the record it’s storing and then sends it back to you.
This approach only works with specific kinds of data. For example, field level encryption isn’t useful for long text entries, like notes in a patient’s medical chart, because you can’t search for individual words.
Still, for data like account numbers, passwords and government ID numbers, field level encryption protects data and maintains a usable database.
Most importantly, White said, it’s simple to set up. Database managers turn it on with a one-time configuration change when they set up the database. “That’s really powerful,” he said in an interview.
1. The underlined word “scrambling” in paragraph 2 probably means________.| A．mixing | B．collecting | C．hiding | D．storing |
| A．Secure the safety of Internet pages. | B．Protect files with a unique style of storage. |
| C．Stop bad guys from accessing the database. | D．Enable companies to store files on the cloud. |
| A．Companies should move user data to cloud servers. |
| B．Cloud computing achieved a 17% increase in 2019. |
| C．Companies may be unaware of the risks of the cloud. |
| D．No companies were willing to run their own data centers. |
| A．present some facts | B．offer security advice |
| C．introduce a technique | D．recommend a product |
4 . An international group of electronic music composers is taking beats from the dance club to jungles and forests and back, all to help save nature's greatest singers. A Guide to the Birdsong of Mexico, Central America and the Caribbean is a new album that includes the sounds of endangered birds. The album will come out next month, whose proceeds will go directly towards efforts to save birds.
The whole project was born out of this idea of trying to combine birdsong, electronic music and conservation. A Guide to the Birdsong of Mexico, Central America and the Caribbean was organized by activist, music producer, Robin Perkins. He invited artists from each of the endangered birds 'homelands to build their own songs around the birds’ songs. There are contributions from ten artists in eight different countries.
First single Black Catbird was created by The Garifuna Collective, from Belize. Al Obando, guitarist and producer of the group, always took in national parks and viewed birds when on the road with the band. “There are no trails, and there are no signs there to tell you about what you reseeing,” Obando says. “So we're trying to do something for the birds and nature tourism.”
Another musician who responded to Robin's call is Tamara Montenegro, an artist from Nicaragua. She was shocked to hear of the serious situation of the Guardabarranco after being approached: “This beautiful creature I grew up adoring also faced the influence of the systematic human activities”. In response, she created a song inspired by this bird and the challenges it faces to live naturally.
The new album is the second edition, following on from A Guide to the Birdsong of South America, produced by Robin in 2015. That first album has raised, to date, over $15,000 benefitting conservation projects in South America. As with the first album, all of the money from the sales of the new album will support specific organizations, including Birds Caribbean.
1. What does the underlined word “proceeds” in Paragraph 1 refer to?| A．Profits. | B．Budgets. | C．Challenges. | D．Effects. |
| A．He created a hit single himself. |
| B．He was fond of observing birds. |
| C．He was the organizer of the new album. |
| D．He did a lot for birds in South America. |
| A．It was friendly to humans. |
| B．It was beautiful in appearance. |
| C．It was losing its living environment. |
| D．It was facing challenges from other birds. |
| A．To collect money for a project. |
| B．To popularize electronic music. |
| C．To recommend some famous artists. |
| D．To introduce a new album of electronic music. |
