1 . Facebook is a habit forming activity， but users who spend a lot of time on the site say they feel less happy with their lives.
Researchers from University of Gothenburg say that many users log in as soon as they turn their PCs on and that the behavior can develop into an“addiction”. People in low income groups and the poorly educated are particularly at risk. Up to 85% of users say that they use Facebook daily and half say they start up Facebook as soon as they open their web users. Half fear that they are not“on top of things”if they are not logged into the site, and 25% say they feel”ill at ease”if they can't log in regularly.
The Swedish survey showed the network had its dark side.“Face-booking may become an unconscious habit. A majority of the respondents(受访者) log in every time they start their web browser(浏览器). This may even develop into an addiction,” says Leif Denti, doctoral student of Psychology at the University of Gothenburg.
People with low income and low-educated individuals spend more time on Facebook. Women are generally more active than men on Facebook. Users with low income and low education use Facebook more than other groups. Within these groups，users who spend more time on Facebook also report feeling less happy and less content with their lives.
The other surprise about the network is that although a huge amount of personal “ news”is traded through the site,it tends to focus on the positive.“ Most of the content they share has something to do with major events, positive events and when feeling good,”says Leif Denti.
1. What is the main idea of the text?| A．Using Facebook may become an addiction. |
| B．Positive events are more welcome on Facebook. |
| C．Women spend more time on Facebook than men. |
| D．Spending more time on Facebook leads to less happiness. |
| A．Pleased. | B．Tired. | C．Annoyed. | D．Interested. |
| A．Half of the users use Facebook daily. |
| B．People tend to share good things on Facebook. |
| C．Men are more active than women on Facebook. |
| D．Well-educated people spend more time on Facebook. |
| A．A diary. | B．A novel. | C．A magazine. | D．A travel guide. |
2 . Would it surprise you to learn that, like animals, trees communicate with each other and pass on their wealth to the next generation?
Professor Simard form University of British Columbia explains how trees are much more complex than most of us ever imagined. Although Charles Darwin thought that trees are competing for survival of the fittest, Simard shows just how wrong he was. As far as Simard is concerned, actually the opposite is true: trees survive through their co-operation, passing around necessary nutrition “depending on who needs it”.
Nitrogen (氮) and carbon are shared through miles of underground fungi (真菌) networks, making sure that all trees in the forest ecological system give and receive just the right amount to keep them all healthy. This hidden system works in a very similar way to the networks of neurons (神经元) in our brains, and when one tree is destroyed, it affects all.
Simard talks about “mother trees”, usually the largest and oldest plants on which all other trees depend. She explains how moribund trees pass on the wealth to the next generation, transporting important minerals to young trees so they may continue to grow. When humans cut down “mother trees” with no awareness of these highly complex “tree societies” or the networks on which they feed, we are reducing the chances of survival for the entire forest.
“We didn’t take any notice of it” Simard says sadly. “Trees move nutrition into the young trees before they die, but we never give them chance.” If we could put across the message to the forestry industry, we could make a huge difference towards our environmental protection efforts for the future.
1. Which statement would Simard agree with?| A．Trees support each other. |
| B．Trees compete for nutrition. |
| C．Trees depend on their needs. |
| D．Trees co-operate with the fittest. |
| A．To explain the importance of fungi networks. |
| B．To introduce the function of neurons networks. |
| C．To illustrate how Nitrogen and carbon are shared. |
| D．To show how the forest ecological system works. |
| A．Energetic. | B．Ancient. | C．Previous | D．Dying |
| A．Protect tree societies. |
| B．Cut down oldest trees. |
| C．Get nutrition from nature. |
| D．Improve our environment. |
3 . Patients often come into my office and ask, “How can I look younger?” While I always suggest healthy living — a balanced diet and regular exercise — in order to look and feel younger, I have never thought of facial exercises as part of that plan. That is, until a recent study, published in JAMA Dermatology (皮肤学), showed promising results that routine facial exercise may slow the merciless tide of time.
The theory behind the study originates from the fact that a major part of facial aging is due to the loss of fat and soft tissue, which leads to the growth and spread of wrinkles. If we can lift weights at the gym and enlarge muscles in arms, why couldn’t the same be done for muscles in our faces, therefore to create a more youthful face?
The concept of facial exercise is not a new one. A simple Internet search will produce a lot of blog posts and books on the subject, as well as various programmes that promise to be the next fountain of youth. What the JAMA Dermatology researchers did in their study, which was the first of its kind, was to examine this question from a more strict scientific aspect. They enrolled 27 women between the ages of 40 and 65 to perform daily, 30-minute exercises for eight weeks, and then continue every other day for a total of 20 weeks.
Dermatologists who did not know the participants were asked to rate their photographs before and after the exercise. The dermatologists found an improvement in cheek fullness and estimated the age of the participants at 51 years of age at the start of the programme and 48 at the end of the 20-week study. Furthermore, all the participants felt improvement in their own facial appearance at the end of the study.
While these results seem exalting, the study has some obvious limitations. Of the 27 patients involved, 11 gave up before completing the study. One reason may be that the programme was to time-consuming, clocking in at 30 minutes a day. The overall small size of the study also limits its generalizability to the larger population. In addition, there was also no control group, which would have helped reduce the possibility that this improvement happened by chance.
It’s also hard to draw conclusions about the longevity of these results. Probably the exercises must be continued to keep their effects. But for how long? And how frequently? Which exercises are most effective? Most studies are need to answer these questions.
1. According to the passage, which statement is true?| A．Though the concept of facial exercise is new, much information about it can be found on the Internet. |
| B．Some participants did not feel improvement in their facial appearance at the end of the study. |
| C．If there is a control group, the possibility that the improvement in the facial appearance happened by chance will be increased. |
| D．The reason why some participants quit the study before it was completely may be that they had not enough time. |
| A．Calming. | B．Challenging. | C．Frustrating. | D．Exciting. |
| A．Doubtful. | B．Positive. | C．Opposed. | D．Indifferent (中立的). |
| A．The study published in JAMA Dermatology is not reliable. |
| B．Healthy living is the only way to make someone look and feel young. |
| C．More studies are needed to further the present study on facial exercises. |
| D．As a dermatologist, the author was involved in the research project on facial exercises. |
4 . Every year more people recognize that it is wrong to kill wildlife for “sport”. Progress in this direction is slow because shooting is not a sport for watching, and only those few who take par realize the cruelty and destruction.
The number of gunners, however, grows rapidly. Children too young to develop proper judgments through independent thought are led a long way away by their gunning parents. They are subjected to advertisements of gun producers who describe shooting as good for their health and gun-carrying as a way of putting redder blood in the veins（血管）. They are persuaded by gunner magazines with stories honoring the chase and the kill. In school they view motion pictures which are supposedly meant to teach them how to deal with arms safely but which are actually designed to stimulate（刺激）a desire to own a gun.
Wildlife is disappearing because of shooting and because of the loss of wildland habitat Habitatloss will continue with our increasing population, but can we slow the loss of wildlife caused by shooting? There doesn't seem to be any chance if the serious condition of our birds is not improved. Wildlife belongs to everyone and not to the gunners alone. Although most people do not shoot, they seem to forgive shooting for sport because they know little or nothing about it. The only answer, then, is to bring the truth about sport shooting to the great majority of people.
Now, it is time to realize that animals have the same right to life as we do and that there is nothing fair or right about a person with a gun shooting the harmless and beautiful creatures. The gunners like to describe what they do as character-building, but we know that to wound an animal and watch it go through the agony of mortality can make nobody happy. If, as they would have you believe, gun-carrying and killing improve human character, then perhaps we should encourage war.
1. According to the text, most people do not seem to be against hunting because .| A．they have little knowledge of it. |
| B．it helps to build human character. |
| C．it is too costly to stop killing wildlife. |
| D．they want to keep wildlife under control. |
| A．difficulty. | B．tress. | C．pain. | D．sadness. |
| A．teach them how to deal with guns safely. |
| B．praise hunting as character building. |
| C．describe hunting as a physical exercise. |
| D．encourage them to have guns of their own. |
| A．Hunting to build human character makes no sense. |
| B．War in the best way to improve human character. |
| C．We are on the edge of war against gunners. |
| D．Protecting wildlife from gunners is extremely difficult. |
5 . Great Barrier Reef Choking on Pollutants
Attempts to protect the Great Barrier Reef are failing. A report released Monday by the government in Australia says water quality in the Great Barrier Reef is far below what it should be. It showed that pollution have decreased, but not enough to reach environmental targets.
Sediment (沉淀物) and chemicals can weaken coral, hurting its ability to feed and grow. Coral are live animals that take root in the ocean floor, but they are not plants. Reefs are the hard skeletons (骨架) left at the bottom of the sea by small marine creatures called polyps (珊瑚虫). The polyps then form the larger structure of a reef. Corals also are some of the most diverse ecosystems on the entire planet. They can make a home for invertebrates, crustaceans, fish, and sea snakes.
Steve Miles is Queensland’s environment minister. He says the research shows the Reef needs more protection. “Over that five-year period, we did see some progress towards our targets. Sediment is down 12 percent and pesticides (杀虫剂) loads are down 30 percent. But what is most disturbing is that these results are far from our targets. Progress towards these targets flat-lined in the period 2013-2014. If one of my kids came home with a report card like this, I would be a bit disappointed. There is more bad news here than good news. ” said Steve Miles.
The report also found that fewer than one-third of Queensland’s sugar plantations used techniques to reduce the use of pesticides. Only 28 percent of land managers managed their land properly. They had reduced harmful water run off to protect the health of the Reef. The official target is a 90 percent reduction in pesticide use within three years.
Scientists at the University of Queensland and the Australian Institute of Marine Sciences published their findings Wednesday, July 18 in the journal Science Advances. It found between 1992 and 2010, the recovery rate dropped by an average of 84 percent. But there is hope. The study also found some corals can recover quickly if “acute and chronic stressors” are lessened.
Meanwhile, the Australian government released its updated reef protection plan Friday. It clearly states global temperatures must be stopped from rising in order to save the world’s largest living structure.
1. What does the underlined word “They” in Paragraph 2 refer to?| A．Diverse ecosystems. | B．Sediment and chemicals. |
| C．Reefs and corals. | D．Small sea creatures. |
| A．He is satisfied with the protection of the Reef. |
| B．He thinks that the Reef needs more protection. |
| C．He feels angry with what his children did. |
| D．He is very happy about the Reef progress protection. |
| A．Not increase significantly. | B．Disappear. |
| C．Speed up. | D．Miss the chance. |
| A．were tough to deal with | B．failed to manage their land properly |
| C．reduced the amount of harmful water | D．were eager to quit pesticide soon |
| A．A news report. | B．A science fiction. |
| C．A book review. | D．A guide book. |
6 . Journalism (新闻业) is a fast-paced industry, requiring reporters to get the facts about newsworthy events and to write about them before a deadline (截止日期). It takes some skills to do this. At the same time, news reporters must follow strict requirements and have a deep understanding of news writing.
Know what you’re going to write about. Newsworthy events can happen anytime and anywhere. So reporters need to develop a good nose for news.
Get all the facts and look at the details. Be sure to look at a story from different angle (角度). Even if you are covering a popular story or topic that others are writing about, look for an angle that will make this one yours.
Check facts to avoid mistakes. Sources may also make mistakes and some may even deceive you. It’s wise to get in touch with other sources. In a shooting incident, for example, getting the facts from the police and from both the criminal (罪犯) and victim isn’t enough. You should also interview other witnesses who may give more information about the incident. Interviewing people and getting a firsthand source on your topic can be valuable.
Start writing the news. When it comes to the body of the article, the main information should be given in the leading statement. It is often a short one, including the basics of what happened, where and when it took place, who was involved and why it’s newsworthy. These details are the main point that informs the reader. Other information about the story follows. This form allows editors to cut off the last paragraphs if there’re space limits.
Check your article for mistakes. If time permits, leave the article for a moment and then read through it again with a fresh eye. Newspaper publications usually have someone check for mistakes but keep in mind that you’re the first line of defense. Grammar mistakes are embarrassing (令人尴尬的), and some mistakes may result in a lawsuit(诉讼).
1. What can we learn about journalism from the first paragraph?| A．It is developing fast. | B．It is very challenging. |
| C．It is very interesting. | D．It is popular worldwide. |
| A．Warn. | B．Assist. |
| C．Interest. | D．Cheat. |
| A．It begins with a summary. | B．It ends with a happy ending. |
| C．It has enough smart questions. | D．It gives opinions about the event. |
| A．By choosing a proper topic. | B．By checking it for grammar mistakes. |
| C．By filling it with enough details. | D．By removing boring facts from it. |
7 . As the effects of climate change become more disastrous, well-known research institutions and government agencies are focusing new money and attention on an idea: artificially cooling the planet, in the hopes of buying humanity more time to cut greenhouse gas emissions.
That strategy, called solar climate intervention (干预) or solar geoengineering, involves reflecting more of the sun’s energy back into space — abruptly reducing global temperatures in a way that imitates the effects of ash clouds flowing out from the volcanic eruptions. The idea has been considered as a dangerous and fancied solution, one that would encourage people to keep burning fossil fuels while exposing the planet to unexpected and potentially threatening side effects, producing more destructive hurricanes, wildfires floods and other disasters.
But. as global warming continues, producing more destructive hurricanes, wildfires floods and other disasters, some researchers and policy experts say that concerns about geoengineering should be outweighed by the imperative to better understand it, in case the consequence of climate change become so terrible that the world can’t wait for better solutions.
One way to cool the earth is by injecting aerosols (气溶胶) into the upper layer of the atmosphere. where those particles reflect sunlight away from the earth. That process works, according to Douglas MacMartin, a researcher at Cornell University.
“We know with 100% certainty that we can cool the planet,” he said in an interview. What’s still unclear, he added, is what happens next. Temperature, MacMartin said, is an indicator for a lot of climate effects. “What does it do to the strength of hurricanes?” he asked, “What does it do to agriculture production? What does it do to the risk of forest fires?”
Another institution funded by the National Science Foundation will analyze hundreds of simulations of aerosol injection, testing the effects on weather extremes around the world. One goal of the research is to look for a sweet spot: the amount of artificial cooling that can reduce extreme weather events without causing broader changes in regional rainfall patterns or similar impacts.
1. Why do researchers and government agencies work on cooling the earth?| A．To prevent natural disasters. | B．To win more time to reduce gas emissions. |
| C．To imitate volcanic eruptions. | D．To encourage more people to bur fossil fuels. |
| A．More volcanoes will throw out. |
| B．More solar energy will go into space. |
| C．More disasters will endanger the future of the world. |
| D．People will keep burning fossil fuels to keep warm. |
| A．He thinks more research remains to be done. |
| B．He is optimistic about the effect of cooling the earth. |
| C．He is concerned about the reduction in agriculture production. |
| D．He disapproves of the practice of solar climate intervention. |
| A．The rainfall pattern of a region. |
| B．The modest drop in temperature. |
| C．The number of extreme weather events. |
| D．The injection amount of aerosol. |
8 . Although Bertha Young was thirty she still had moments like this when she wanted to run instead of walk, to take dancing steps on and off the pavement, to throw something up in the air and catch it again, or to stand still and laugh at —nothing — at nothing, simply.
What can you do if you are thirty and, turning the corner of your own street, you suddenly feel happy — absolutely happy.
Oh, is there no way you can express it without being “drunk and disorderly"? How stupid civilization is! Why should you be given a body if you have to keep it shut up in a case like a rare, rare fiddle (小提琴)?
"No, that about the fiddle is not quite what I mean," she thought, running up the steps and feeling in her bag for the key—she'd forgotten it, as usual—and rattling the letter-box. "It's not what I mean, because—Thank you, Mary"— she went into the hall. “Is nurse back?”
“Yes, M’m."
"I'll go upstairs." And she ran upstairs to the nursery.
Nurse sat at a low table giving Little B her supper after her bath. The baby looked up when she saw her mother and began to jump.
“Now, my lovey, eat it up like a good girl," said nurse, setting her lips in a way that Bertha knew, and that meant she had come into the nursery at another wrong moment.
“Has she been good, Nanny?”
“She's been a little sweet all the afternoon," whispered Nanny. "We went to the park and I sat down on a chair and took her out of the pram(婴儿车) and a big dog came along and she pulled its ear. Oh, you should have seen her."
Bertha wanted to ask if it wasn't rather dangerous to let her pull a strange dog's ear. But she did not dare to. She stood watching them, her hands by her side. like the poor little girl in front of the rich girl with the doll.
The baby looked up at her again, stared, and then smiled so charmingly that Bertha couldn't help crying.
“Oh, Nanny, do let me finish giving her supper while you put the bath things away.
“Well, M’m, she oughtn't to be changed hands while she's eating,” said Nanny, still whispering. “It unsettles her, it's very likely to upset her.”
How absurd it was. Why have a baby if it has to be kept—not in a case like a rare, rare fiddle—but in another woman's arms?”
“Oh, I must!” said she.
Very offended, Nanny handed her over.
Now, don't excite her after her supper. You know you do, M'm. And I have such a time with her after!"
Thank heaven! Nanny went out of the room with the bath towels.
"Now I've got you to myself, my little precious," said Bertha, as the baby learned against her.
She ate delightfully, holding up her lips for the spoon and then waving her hands. Sometimes she wouldn't let the spoon go; and sometimes just as Bertha had filled it, she waved it away to the four winds.
When the soup was finished Bertha turned round to the fire. "You're nice—you're very nice!" said she, kissing her warm baby. "I'm fond of you. I like you."
And indeed, she loved Little B so much—her neck as she bent forward, her pretty toes as they shone transparent in the firelight that all her feeling of happiness came back again, and again she didn't know how to express it—what to do with it.
“You’re wanted on the telephone," said Nanny, coming back in victory and seizing her Little B.
1. In paragraph 3 and 15, a “rare, rare fiddle" is used to show that ______| A．Bertha is frustrated by not feeling free to express her musical talents |
| B．wealthy mothers are not allowed to look after their children |
| C．Bertha considers her baby girl an extraordinary child |
| D．people of a certain age are expected to follow a certain code of behavior |
| A．a vain attempt to hide her joy at seeing Bertha |
| B．fear of dismissal from her job for untidy nursery |
| C．dislike for Bertha's ill-timed visits to the nursery |
| D．a relief as she can at last eat her supper |
| A．Bertha wishes to have care-giving time with her baby. |
| B．Bertha lacks emotional and psychological strength. |
| C．Bertha desires a closer relationship with Nanny. |
| D．Bertha suffers from an unrealistic hope of having more babies. |
| A．Bertha feels that Nanny is a competent nurse and will do anything liberate her from chores. |
| B．Nanny considers herself the baby's primary caregiver and Bertha just an occasional visitor. |
| C．Bertha prefers to leave the child in Nanny's care so that she can fulfill her inappropriate fantasies. |
| D．Nanny is tired of working hard for Bertha and would like to find other pleasant employment. |
| A．She is a kind employer but a strict mother. |
| B．She is a thoughtless person and inexperienced mother. |
| C．She is excited and is always lost in her overactive imagination. |
| D．She is forgetful and has no sense of class distinctions in society. |
9 . Imagine a world where you move around in front of a personal computer in your own sound space. You listen to your favorite songs, play loud computer games or watch a movie — all without other people hearing the sound and without headphones.
That is the possibility presented by “sound beaming”, a new technology from Noveto Systems, an Israeli company. On Friday, the company introduced a desktop device that sends sound directly to a listener without the need for headphones or a special receiver.
Noveto Systems gave The Associated Press (AP) a chance to test its SoundBeamer 1.0 before its introduction. The AP’s Louise Dixon writes that listening to the device is like something from a science fiction movie.The sound seems so close that it feels like it is inside your ears while also in front, above and behind them.
Noveto expects the device will have many uses. Office workers could listen to music or conference calls without others hearing. People could play a game, a movie or music without waking up others in the same room. Because the device does not use headphones, it is possible to hear other sounds in the room clearly.
The device uses a 3-D sensing module that finds and follows the ear position of the listener. It sends ultrasonic waves (超声波) to create sound pockets by the user’s ears. The 3-D method creates sound on all sides of the listener, therefore the listeners feel completely transported into the scene.
By changing a setting, the sound can follow a listener around when he moves his head. It is also possible to move out of the sound beam's path and hear nothing at all.
While the idea of sound beaming is not new, Noveto was the first to launch the technology.
According to the chief executive officer Christophe Ramstein, a “smaller” version of the device will be ready for release to consumers next year.
1. What does the underlined word “possibility” in Paragraph 2 refer to?| A．The listener may put on music to block out other sounds. |
| B．The listener may hear sound only for him or her without using headphones. |
| C．The listener may enjoy songs or movies without being interrupted by others. |
| D．The listener may have the ability to pick up some special sounds. |
| A．Amazing. | B．Impossible. |
| C．Strange. | D．Meaningful. |
| A．It places the listener on the scene to hear the sound. |
| B．It fixes a sound beam’s path which can not be changed. |
| C．It follows the listeners around to send and receive sounds. |
| D．With 3-D tracking technology, it sends ultrasonic waves to the target listener. |
| A．To promote the SoundBeamer. | B．To introduce a new sound device. |
| C．To recommend new headphones. | D．To explain a technical phenomenon. |
10 . New research suggests that dogs might be able to help save diseased citrus trees.
A group of scientists trained dogs to use their sense of smell to detect a crop disease called citrus-greening. The disease has affected orange, lemon and grapefruit trees in the American states of Florida, California and Texas.
The dogs can detect the disease weeks to years before it appears on tree leaves and roots, the researchers report. A study on their findings was published recently in the Proceedings of the National Academy of Sciences. The report says using dogs is also faster, less costly and more exact than having people collect hundreds of leaves for lab analysis.
Timothy Gottwald is a researcher with the U. S. Department of Agriculture and a co-writer of the study. He told The Associated Press, “This technology is thousands of years old-the dog’s nose. We’ve just trained dogs to hunt new prey.”
Citrus-greening is caused by a bacteria (细菌) that is spread by a tiny insect that feeds on the leaves and stems of citrus trees. Once a tree is infected (感染), there is no cure. The disease has also hurt citrus crops in Central and South America and Asia. In one experiment involving grapefruit trees in Texas, trained dogs were correct 95 percent of the time in telling the difference between newly infected trees and healthy ones. “The earlier you detect a disease, the better chance you have at stopping an epidemic (流行病) by removing infected trees,” Gottwald said.
Matteo Garbelotto studies plants at the University of California, Berkeley. He says the new research shows that dogs can detect an infection well before current methods. Garbelotto has been involved in similar research but had no part in the new study.
Laura Sims is a plant scientist with Louisiana Tech University. She praised the steps taken to find out if the dogs were detecting the bacteria itself or a plant’s reaction to an infection. To do that, the researchers infected different kinds of unrelated plants with the bacteria in a laboratory. The dogs were still able to pick out the infected plants.
Gottwald said, “You’ve seen dogs working in airports, detecting drugs and explosives. Maybe soon you will see them working on more farms. ”
1. According to the research, trained dogs can ________.| A．help infected trees recover from diseases | B．recognize a crop disease in its early stage |
| C．cause fruit trees to grow faster than usual | D．reduce the cost of planting some fruit trees |
| A．Infected plants. | B．Fruit trees. | C．Tiny insects. | D．Favourite foods. |
| A．To further prove the findings. | B．To explore the plant diseases. |
| C．To present different opinions. | D．To discover a plant’s reactions. |
| A．Doubtful. | B．Positive. | C．Indifferent. | D．Curious. |
