说明文 知识点题库
方法 | 1). 勤洗手 | 2). 少外出 |
理由 | 有效预防各种疾病；病毒颗粒存在于桌面、电话和其他物体的表面并通过手传播。 | 尽量少用公共交通工具，尽量少接触流感患者，有症状者（高烧咳嗽肌肉酸痛等）及时就医。 |
注意：1. 词数100左右； 2. 可根据内容要点适当增加细节，使行文连贯；3. 参考词汇：颗粒病毒：virus particles
Hello， everybody！It's true that many people are infected with flu virus when the weather changes frequently.
Thank you.
1). 广受欢迎；
2). 它的优缺点；
3). 你的看法……
注意：
1). 词数100左右；
2). 可适当增加细节，以使行文连贯。
1）快餐受欢迎的原因：
-
（1） 方便，省时；（2）价格合理,服务好。
2）快餐食品的不足：营养不均衡。
3）你对快餐的态度和观点。
注意：1）词数：100左右；
2）从营养角度来讲：in terms of nutrition
Technology is forever changing the way we get our news. Many people now get a lot of their news on electronic devices, instead of traditional media, such as newspapers, television or radio. An increasing number of people also report turning to social media for information
Now, there is a new technology that could greatly change the way we get the news: computer-created news readers. Recently, China launched what it called the worlds first artificial intelligence, or Al news presenters.
The news readers, supported by machine learning technology, are based on two real-life Chinese newsmen. One is able to present newscasts in English, the other, in Mandarin Chinese Report said machine learning was used to examine video images and sounds of the two newsmen. Similar technology has been used to create video products known as “deepfake” videos. "A deepfake a video that looks real, but was electronically changed. Such videos can make people appear to say things they never said
It's said that the Al presenters will be a great improvement to the news team because they "can work 24 hours a day" on its website and on social media. One of the presenters even promised to work tirelessly" to keep people informed. Some machine learning experts said the system showed off Chinas latest progress in voice recognition, text-to-speech technology and data analysis
Others wondered about the effects robots might have on employment and workers. Some people argued that only low-level jobs requiring heavy labor will be easily replaced by robots. Others praised the technology as a way for companies to make money from low-cost labor machines. Some businesses have experimented with similar technology for possible use in news operations.
Britain's BBC recently released a video that used machine learning to make it look like one of its news readers speaking different languages. The London-based company that developed the system says its goal is to "remove the language barrier" for many different kinds of video across the internet. Also, Amazon's working on Alexa smart speaker system to create a special news reader voice. Amazon is reportedly preparing to launch Alexas news reader voice in the near future
阅读下面短文，根据其内容写一篇60词左右的内容概要。
Have you heard an old saying "The grass looks greener on the other side of the fence"? It means other places often look better, more interesting than the place where you live. "Let's go to KFC for dinner and then watch some Japanese cartoons!" We all know it: more and more Chinese kids love American and Japanese food and movies. Some people worry that young Chinese are beginning to feel that way. They see young Chinese ignoring(忽视)Chinese culture and, instead, buying Japanese cartoon books, watching Korean soap operas and even celebrating western holidays.
Foreign books and soap operas are good, but Chinese writers and actors are just as good. As for holidays, Christmas is nice, but it can never have the meaning for Chinese that Spring Festival has, and the West has nothing to compare with the Mid-Autumn Festival. China has lots of cool things in its culture: calligraphy, Beijing Opera, quick meals on the streets, and even Jay Chou! And let's not forget the part of Chinese culture I like best: its friendliness. Not all countries are as warm as China.
It's good to enjoy other cultures and learn from them, but they can never replace your own culture. It's good to look on the other side of the fence, but make sure you take a good long look. You will find that the grass isn't always greener.
Although some people become worried about that, I don't think they should. Will we get more powerful without learning from other countries? Will Chinese people live more happily without American fast food? Besides, it's fun to learn about different cultures. Chinese kids can learn about other cultures and have fun, but they also need to learn more about their own culture. Be proud of Chinese culture and of being Chinese!
Herbal Medicine
Herbal medicine, which has been used for medicinal purposes, is the use of plants to treat diseases. Many herbalists use the entire plant, from the flowers, stems, leaves, and roots, in the form of everything from teas to pills. These plants contain natural, chemical things that can treat the body for a variety of diseases, such as allergies, asthma, rheumatoid arthritis, migraine, chronic fatigue, and cancer, among others.
Nowadays an increasing number of people prefer to adopt these plants to treat their diseases because, compared with chemical medicine, herbal medicine has its own advantages. Herbal medicine and remedies are more effective than chemical medicine for certain diseases. The chemical medicine given by a chemist could have certain negative side effects. However, many of the herbal medicine and remedies to not have negative side effects. If any, they are softer than chemical medicine. Obesity is the cause of many of the health problems. Herbal medicine can help weight loss more effectively and improve overall health.
However, the cure using herbal medicine and supplements would take some time, and therefore people are supposed to possess enough patience. Worse still, herbal medicine contains a variety of ingredients and people have to be sure that their body agrees with the ingredients and that it is not allergic(过敏).
A point worth mentioning here is that herbal remedies and medicine for certain illnesses may have negative side effects. These side effects may not be shown at once, but would take months or even years. In the early stages, if the herbal medicine is not agreeing with you, it is wise to stop using it.
When used correctly and directed by doctors, herbs can help treat a variety of disease. But keep in mind that the herbal medicine industry is not regulated, so herbal products are often misleading and may contain additives that are not listed on the label. Some herbs may cause allergic reactions or interact with other drugs, and some are poisonous if used improperly or at high doses. Taking herbs on your own increases your risk.
What Coffee Does to Your Health
Coffee can be considered one of nature's greatest gifts. It gives mental and emotional clearness without harmful side effect, and it contains a wealth of nutrients. Yet, when most people drink coffee, they are not thinking that the drink is improving their health. In fact, some may even feel a little guilty, since some believe coffee isn't good for them at all.
Well, there's the truth of the matter. Coffee, like anything else, can bring about problems if too much is consumed. In the short-term, too much coffee will cause sleeping problems and high blood pressure. In the long-term, too much coffee will cause stomach problem as well as teeth staining.
As for the benefits, moderate consumption of coffee, which means 1 to 4 cups a day, provides your body with a wealth of antioxidants(抗氧化物质).These substances are responsible for eliminating free radicals(自由基). They are the chemical byproducts produced any time your body does something. A small number of them can help serve as something against negative elements, but if they aren't kept in control, they can cause health problems. Antioxidants ensure that this doesn't happen.
The psychological effects of caffeine cannot be ignored either. Not only does caffeine make you more alert, but it can actually affect your mood. If you were feeling depressed, a nice cup of coffee could change your perspective. The stack of work that seemed impossible before isn't even a problem now.
In addition, caffeine helps stimulate creativity as it speeds up the body's functioning. That's why coffee is often associated with writers and other intellectual professions. Other drugs tend to make people dumber. Consider what happens when people get drunk off of alcohol. They won't be functional at all. But with coffee, an individual gets a push in creative thinking while still helping their bodies.
In conclusion, don't feel bad when you are making your morning cup of coffee. Unlike a shot of alcohol, coffee will make your feel wonderful while keeping you healthy. Just remember, you do have to consume it in moderation.
注意：
1）词数：100左右；
2）行文连贯。
Bees are important to the production of food we eat. Bees make honey, but they also pollinate (授粉)large areas of crops, such as straw berries, apples and onions. About a third of the food we eat is a result of pollination of the bees. Unfortunately, bees have been disappearing at an alarming rate.
In 2010, bee keepers started reporting about something called Colony Collapse Disaster (CCD). The main sign of CCD is the loss of adult honey bees from a hive(蜂巢). In October of 2010, some beekeepers reported that they had lost between 30 and 90 percent of their hives.
There were many theories for the disappearance of the bees. But the most convincing one has to do with pesticides and lifestyles of bees today. Nowadays, beekeepers get most of their income not from producing honey but from renting bees to pollinate plants. This means that the life of the typical bee now consists of travelling all around the country to pollinate crops as the seasons change. That means a lot of traveling on trucks, which is very stressful to bees. It is not unusual for up to 30% of the hive to die during transport due to stress. In addition, bees that spend most of their time locked up on trucks are not exposed to what they usually live on. Instead, they live on a sweet liquid from corn, usually polluted with pesticides.
The exact reason for the disappearance of bees is not sure, but losing bees is very costly to the economy. The bee pollination services are worth over $8 billion a year. With no bees, pollination will have to be done by hand, which would have effects on the quality of food and increased food priced. We hear a lot about big environmental disasters almost every day. But one of the biggest may just be the less of that tiny flying insect.
What You Will Need to Live to 100
A new approach to retirement preparation known as “longevity planning” has been on the rise for years, with the global population of centenarians (B1岁老人)steadily growing. In about 40 years, the number of people 100 and older will be six times as high as it is now. What, as you may wonder, enhances longevity? While a previous study underlined the link between longevity and higher education, having a degree doesn't necessarily guarantee you a longer lief. Actually, the growth in the 100-plus age group are more likely to result from a combination of improved lifestyle factors.
Genetic, as new research has revealed, is a force that cannot go ignored. Dr. Peris of medicine and geriatrics at Boston University points out that longevity is not distributed equally. Being blessed with the certain genetic component that extend your life span is like winning the lottery. Only one in 5000 is lucky enough to possess the magical power that help make it to the century mark. Rare as it may appear, the genetic component is a factor in 40 percent to 50 percent of people who make it to 100 and 70 percent for those reaching 106.
Deliberate mental, social and physical activities during retirement also matter. That means continuing to learn new things, staying involved in the community and working to some degree. Activity is critically important, said Mitch Anthony, a consultant in Rochester, who trains financial planners in life planning. People tend to do best when they remain socially and mentally vibrant.
The research continues to uncover that despite their struggle to identity how they improve longevity, most of the researchers agree that purpose and meaning throughout life provide people with better chances to live longer. These factors may offer a mental and possibly physical shelter from stressful events in life. Having purpose in life may motivate refraining stressful situations to deal with them more productively, thereby facilitating recovery from stress and disorder.
Robotic Exoskeletons
Thanks to robotic exoskeletons, victims of spinal cord (脊髓) injury have a new reason to hope. Robotic exoskeletons, consisting of metal legs, motors, batteries, wiring, a controller and a set of strips work together like the user's bones, muscles and nerves-outside the body. Fastened into an exoskeleton and supported by sticks, users can direct the machinery to take them where they want to go.
In addition to partly restoring mobility, robotic exoskeletons offer the significant mental and physical health benefits of standing up and moving. Just being able to get up from a wheelchair gives patients a more natural, positive view of the world. It also helps relieve pressure on patients' skin and reduces the danger of pressure sores. Standing upright strengthens a disabled person's muscles and bones, improves heart health，and reduces certain other health complications (并发症). And it may actually result in partial nerve repair, something that can only happen when a patient is able to move.
As promising as this technology is, however, it is no simple cure-all for paralysis(瘫痪) or its complications. The motion is not accurate compared with natural walking, and exoskeletons are not easy to use, especially on surfaces that are not smooth. They are very expensive, costing about US$100000. Health insurance plans and government programs may not cover the cost of buying one.
Nevertheless, robotic exoskeletons, and access to them, will continue to improve. As with much modem technology, robotic exoskeletons will likely become more capable and easy to use, even as their cost goes down. Governments and insurers may increasingly see that the health benefits of these walking machines outweigh the costs, making it easier to fund them. Perhaps the day will come when nearly everyone paralyzed by spinal cord injury will be able to "walk" again.
For many high school students, giving an in-class presentation is an approach to their growth. Teachers will call up students, one by one, to present their work in front of the class, and, though it is often tense, many people say it has helped turn them into more confident public speakers. Some educators also credit it with building leadership skills and increasing students' confidence and understanding of materials.
But in the past few years, students have started calling for an end to in-class presentations as they show discrimination against those with anxiety. This week, a tweet posted by a 15-year-old high school student declaring "Stop forcing students to present in front of the class and give them a choice not to" received more than 130,000 retweets and nearly half a million likes.
In fact, being a high schooler nowadays is more stressful than ever. Students are burdened with extra hours of homework. They stay up every night till 1:00 a.m. finishing homework on their third Red Bull. Anxiety is increasing at a faster rate than depression (抑郁) as the leading mental-health issue affecting teenagers, a recent study in the Journal of Developmental and Behavioral Pediatrics found.
These students want more options. They say that every student has unique strengths and that they should be allowed to present their work in ways that speak to those strengths. This might mean presenting alone in front of the teacher, or choosing between several alternatives like producing a piece of art or an essay for private judgment instead of presenting their work orally.
Educators have begun to take it seriously. They agree teachers should listen to students and hear their voices and respond to that. If students' feelings are ignored, they might just walk away. However, not everyone is convinced. Some hold the view that pushing students out of comfort zones is a big part of what they should do as some students are deathly afraid to do it.
1）业余爱好的内容；
2）开始该业余爱好的原因及其带来的收获。
注意：1）词数100左右；
2）短文题目已为你写好。
One of My Hobbies
If you haven't seen or heard anything about Road Rage (路怒) in the last few months, you've probably been avoiding the media. There have been countless stories about this new and scary phenomenon, considered a type of aggressive driving. You've most likely encountered aggressive driving or Road Rage recently if you drive.
Why is this phenomenon occurring more than ever now and why is it something that seemed almost nonexistent a few short years ago? Experts have certain theories and all are probably partially correct. One suggestion is overcrowding. In the last decade, the number of the cars on the roads has increased by more than 11 percent, and the number of miles driven has increased by 35 percent. However, the number of new road miles has only increased by 1 percent. That means more cars in the same amount of space; and the problem is even serious in urban areas. Also, people have less time and more things to do. With people working and trying to fit extra chores and activities into the day, street levels have never been higher. Stress creates anxiety, which leads to short tempers. These factors, when combined in certain situations, can cause Road Rage.
You may think you are the last person who would drive aggressively, but you might be surprised. For instance, have you ever yelled out loud at a slower driver, sounded the horn long and hard at another car, or sped up to keep another driver from passing? If you recognize yourself in any of these situations, watch out!
Whether you are getting angry at other drivers, or another driver is visibly upset with you, there are things you can do to avoid any major conflict. If you are easily influenced to Road Rage, the key is to discharge your emotion in a healthy way. If you are the target of another driver's rage, do everything possible to get away from the other driver safely, including avoiding eye contact and getting out of their way.
地理概况：澳大利亚位于太平洋的南面，是大洋洲(Oceania)最大的国家，面积达760万平方千米。它由六个州组成，其中墨尔本(Melbourne)和悉尼(Sydney)是最大的两个城市。首都堪培拉(Canberra)风景秀丽。
气候：它是一个以干旱气候为主的国家，只有少部分沿海地区有充足的雨量。
旅游：人口稀少，只有1000多万人。澳大利亚以明媚的阳光、数不清的牛羊和独特的野生动植物而闻名于世。世界各地的游客经常到澳大利亚体验它独特的美景。
注意:
1）词数80左右;
2）不要逐条翻译，可适当增加细节，以使行文连贯。
核心要点提示:
1）located in
2）covers an area of
3）plenty of rainfall
4）is famous for
5）from all over the world
An old saying goes that a near neighbour is better than a distant cousin. This saying has fully proved that neighbours are so significant in our life.
In the past, neighbours helped one another build houses and clear fields. They could offer timely help when someone was in trouble. Families depended on one another for friendship and entertainment. They shared happiness and sorrow from time to time, which brought a harmonious atmosphere.
However, nowadays, lack of communication and interaction between neighbours is a norm. Close relationship between neighbours is not common in our cities. A family may not even know the other families that live next door to them. We live in an age of machines and the Internet, and each family has its own car, TV set, and washing machine. People no longer depend on neighbours as much as they once did. Machines and the Internet keep people apart. In our grandparents' time, women met while they hung out the washing, and men stopped and talked while they mowed their lawns. Today, they can't hear anything above the noise of their power lawn mowers. And women stay inside with their electrical dryers. Children are inside watching their favourite TV shows or playing computer games.
Is the idea of being a good neighbour old-fashioned?In 1965，a power cut hit New York City, and many thousands of people were left helpless. Suddenly everyone shared the same problem, and the largest city became a group of eight million neighbours. People with cars offered rides to those walking. Other people helped direct traffic. Trapped in elevators, people played word games and helped keep each other in good spirits. In times of trouble, people still depend on one another. As time goes on, people may once again feel that being a good neighbour is important.
Are your children getting on your last nerve? Did a coworker's comment rub you the wrong way? There's no need to plug the steam coming out of your ears. In fact, science now gives you full permission to release those emotions; you might actually be happier for it. If that seems counter—intuitive(违反直觉的), hear us out. A new study suggests that people tend to be happier if they can feel and express emotions as they want. That goes for unpleasant emotions like anger and hatred, too.
An international team of researchers recruited 2, 300 university students from the United States, Brazil, China, Germany, Ghana, Israel, Poland, and Singapore. They then asked the participants to tell them which emotions they desired and which ones they actually felt, and then compared those responses to how the participants rated their overall happiness or life satisfaction.
The results showed an interesting trend. While participants wanted to experience more pleasant emotions, they reported higher life satisfaction if the emotions they experienced matched those they desired. More surprising still, 11 percent of people wanted to feel less of positive emotions, such as love and empathy, and 10 percent of people wanted to feel more negative emotions, such as hatred and anger.
At first glance, these result might seem confusing. But there's a simple explanation, according to the study's authors. Happiness is "more than simply feeling pleasure and avoiding pain," they write. It is also learning to release negative emotions when you feel them, instead of ignoring them or bottling them up.
"If you feel emotions you want to feel, even if they're unpleasant, then you're better off," lead researcher Dr Maya Tamir from The Hebrew University of Jerusalem told the BBC News website.
The Power of iPhone
Though Apple released data last week indicating iPhone sales may, at last, be slowing, one CEO recently explained why he thinks the smartphone has overturned our expectations of basically everything.
Harry West is the CEO of the global design and strategy firm Frog, which works with its clients "to anticipate(预料)the future". In a conversation with The Huffington Post at the World Economic Forum in Davos, Switzerland, West credited Apple with transforming the way companies approach consumers and their own employees.
"Way back in the day," West said, companies marketed their products as "military spec" and "industrial" to take advantage of the impression that these seemingly specialized products were of higher quality than consumer versions. In the 70s, 80s and 90s, this slowly gave way to the rise of "professional" products adapted to businesses and business people.
"That all changed after the coming of the iPhone in 2007," he said. "Consumers began to use this amazing digital interface (界面), and they liked it. They used it ii their personal life and at home, and when they went back to work, they encountered this terrible 'professional' or 'industrial', or 'enterprise' product, and they realized how old-fashioned and inconvenient it was. They demanded change."
That massive shift foreshadowed the downfall of BlackBerry and the weakening of the power of it departments - and it also forced companies to update the work experience of their employees, according to West.
"Companies need to hire millennials(千禧世代,一般指在1980年至2000年之间出生的人), and millennials refuse to work in these outdated, backward systems," he said. "Not only is it uncomfortable, but it also indicates something wrong about the company. If your work experience is that old-fashioned, then what else is wrong in the company?"
Good friendships seem to be especially helpful for the heart. A three-year Swedish study of more than 13, 600 men and women found that having few or no close friends increased the risk of having a heart attack by about 50 percent. A two-year study of more than 500 women with suspected coronary artery(冠状动脉) disease showed similar results. Women who reported the lowest levels of social support were twice as likely to die during the study. The women who enjoyed close support were not only more likely to be alive after two years, they also had lower rates of high blood pressure and were less likely to have excessive fat.
As reported in the Journal of the National Medical Association, friendships and other types of social support can help relieve stress, a well-known contributor to heart disease. Among other things, stress can encourage inflammation (炎症) in arteries. The research is still not very mature, but some studies have found that people who enjoy close support from friends and family generally have fewer inflammatory chemicals in their blood. The link between social ties and inflammation seems to be especially marked in older people.
When stress does appear, friends can encourage healthy reactions. People who lack strong social support tend to have dramatic and potentially dangerous reactions to scary situations. Their hearts pound and their blood pressure soars. But friends can help keep the heart on a more even keel. A study published in the Annals of Behavioral Medicine found that young men and women discussing rough patches in their lives had a lower pulse and blood pressure when they had a supportive friend at their side.
Finally, friendships may help encourage a heart-healthy lifestyle. As reported in Current Opinion in Psychiatry, people are more likely to eat fruit and vegetables, exercise regularly and quit smoking if they have a network of friends and family.
Architects have long had the feeling that the places we live in can affect our thoughts, feelings and behaviors. But now scientists are giving this feeling an empirical(实证的) basis. They are discovering how to design spaces that promote creativity, keep people focused and lead to relaxation.
Researches show that aspects of the physical environment can influence creativity.In2007, Joan Meyers-Levy at the University of Minnesota, reported that the height of a room's ceiling affects how people think. Her research indicates that higher ceilings encourage people to think more freely, which may lead them to make more abstract connections. Low ceilings, on the other hand, may inspire a more detailed outlook.
In addition to ceiling height, the view afforded by a building may influence a person's ability to concentrate. Nancy Wells and her colleagues at Cornell University found in their study that kids who experienced the greatest increase in greenness as a result of a family move made the most gains on a standard test of attention. According to another study at the University of Georgia, using nature to improve focus of attention seems to pay off academically. It found that students in classrooms with unblocked views of at least 50 feet outside the window had higher scores on tests of vocabulary, language arts and maths than did students whose classrooms primarily overlooked roads and parking lots.
Recent study on room lighting design suggests that dim(暗淡的) light helps people to loosen up. If that is true, generally keeping the light low during dinner or at parties could increase relaxation. Researchers of Harvard Medical School also discovered that furniture with rounded edges could help visitors relax.
So far scientists have focused mainly on public buildings." We have a very limited. number of studies, so we're almost looking at the problem through a straw," architect David Allison says. "How do you take answers to very specific questions and make broad, generalized use of them? That's what we're all struggling with."
