Over the past fifty days, the novel virus (make) its way around the China. It has a strong influence our life and study. (face) with the crisis, we students should respond to the appeal from authority and experts (active). In order to ease the serious condition, all of students had better do as follows.

First of all, stay at home and don't go out if not necessary. Be responsible for(your) and others. In addition, do wear masks while you are in the open air. we all know, it can reduce the risk of contracting the virus. Washing hands as often as possible (need), too. Most importantly, everyone ought to have a positive attitude to the campaign with the disease. Attitude is everything.

My dear friends, there may be a long way (go) for us. Let's work hand in hand to overcome (anxious) and do some bits. We have faith in the fact tomorrow is another day.

When I was a little girl, there was the magic of Mercurochrome(红药水). It was good for cuts, scratches(抓痕), or other wounds. My brother and I tested and1the powers of Mercurochrome many years ago.

It was summer and hot. Mama was not feeling well and had become2tired. She told us that she was going to3on her bed. Only a few minutes had passed when Ronnie4a scratch on his knee that needed immediate5We tiptoed (踏脚走) into Mama's room and asked her if we could put Mercurochrome on Ronnie's scratch. Flat on her back, Mama had fallen into a deep sleep and made no answer.

We stole into the bathroom, took the Mercurochrome and6 Ronnie's knee. Undoubtedly, he immediately began to feel better.7, we tiptoed into Mama's room to show her that we had taken care of our scratches without8her. But she was in sound sleep. Then we whispered that since Mama didn't feel well, perhaps Mercurochrome would make her feel9.

Twenty minutes10, we painted every scratch and every freckle(雀斑) of Mama's skin. She had Mercurochrome on her legs, arms and face. At Ronnie's encouraging, we11tried to paint her fingernails and toenails.

When Mama screamed in12, we knew that she was awake. With all the 13, it didn't seem at first that she was feeling better,14she burst into laughter as she stared at her image in the mirror.

We laughed a lot the next few days. If anyone had asked us, we would have 15 that Mama had been cured by the magic of Mercurochrome.

Many of us live with a roommate at some stage. Sometimes, there can be problems. Who hasn't had an argument about whose turn it is to take out the rubbish or who should be the one to clear up after dinner?

You know that there's always someone else around, which can help you feel safer. There is always someone to talk to, so you never feel lonely. For example, we're actually more likely to eat healthier food when living with others.

Australian researchers found that people living alone tended to eat less fresh food, which can have a negative effect on their health. However, those living with others generally benefited from a more varied diet compared to those living alone.

The researchers believe food preparation may be one of the important factors. For example, those living with friends have someone else to go shopping with, and thus are likely to buy higher-quality fresh food regularly.

If people living alone find they do not have the knowledge required to prepare a particular dish or cook a certain food, they may fall back on ready-made, less healthy food. However, if they live with at least one other person, they may be able to ask for help.

In addition, people living alone can eat whatever they want at any time of the day or night. However, it's helpful to have someone around who questions your decision to eat frozen pizza at 3 a.m.

Mirroring body language is a way to bond and to build understanding. It is a powerful tool that we use without even knowing it.

The most obvious forms of mirroring are yawning and smiling. When you see someone yawn, you are likely to yawn immediately. Smiling is also pretty contagious-seeing a smiling person makes you want to smile too.

Mirroring body language is a nonverbal way to say “I am like you, I feel the same”. Research shows that people who experience the same feelings are likely to trust, understand and accept each other.

Women have the natural ability to pick up and understand body signals. Therefore, it is not surprising that a woman is more likely to mirror another woman than a man is to mirror another man. That's why women are regarded as better talkers, even if they might not really have more close friends.

It is interesting that when a man tries to mirror a woman's body language while she is talking, he may seem to her as caring, intelligent and attractive.

Mirroring body language is an excellent way to build trust and understanding quickly. If you want to set up a connection with a new person, mirror his or her gestures, sitting position, tone of voice and talking pace. This will make them feel that there is something about you that they like.

While mirroring body language gains you acceptance, you still need to take into consideration your relationship with the person you are mirroring. If you are in a lower social position and are mirroring the body language of your boss, he will view you as arrogant. However, if you want to defeat those who are trying to prove superior to you, mirroring their body language will help defeat them and change their position.

Cowboy or spaceman? A dilemma for a children's party, perhaps. But also a question for economists, argued Kenneth Boulding, a British economist, in an essay published in 1966. We have run our economies, he warned, like cowboys on the open grassland: taking and using the world's resources, confident that more lies over the horizon. But the Earth is less a grassland than a spaceship—a closed system, alone in space, carrying limited supplies. We need, said Boulding, an economics that takes seriously the idea of environmental limits. In the half century since his essay, a new movement has responded to his challenge. “Ecological economists”, as they call themselves, want to revolutionise its aims and assumptions. What do they say—and will their ideas achieve lift-off?

To its advocators, ecological economics is neither ecology nor economics, but a mix of both. Their starting point is to recognise that the human economy is part of the natural world. Our environment, they note, is both a source of resources and a sink for wastes. But it is ignored in conventional textbooks, where neat diagrams trace the flows between firms, households and the government as though nature did not exist. That is a mistake, say ecological economists.

There are two ways our economies can grow, ecological economists point out: through technological change, or through more intensive use of resources. Only the former, they say, is worth having. They are suspicious of GDP, a crude measure which does not take account of resource exhaustion, unpaid work, and countless other factors. In its place they advocate moreholistic(全面的) approaches, such as the Genuine Progress Indicator (GPI), a composite index(复合指标) that includes things like the cost of pollution, deforestation and car accidents. While GDP has kept growing, global GPI per person peaked in 1978: by destroying our environment we are making ourselves poorer, not richer. The solution, says Herman Daly, a former World Bank economist and eco-guru, is a “steady-state” economy, where the use of materials and energy is held constant.

Mainstream economists are unimpressed. The GPI, they point out, is a subjective measure. And talk of limits to growth has had a bad press since the days of Thomas Malthus, a gloomy 18th century cleric who predicted, wrongly, that overpopulation would lead to famine. Human beings find solutions to some of the most annoying problems. But ecological economists warn against self-satisfaction. In 2009 a paper in Nature, a scientific journal, argued that human activity is already overstepping safe planetary boundaries on issues such as biodiversity(生物多样性) and climate change. That suggests that ecological economists are at least asking some important questions, even if their answers turn out to be wrong.

When it comes to the most famous 20^th century painters of the United States, Grandma Moses should be mentioned, although she did not start painting until she was in her late seventies. As she once said to herself , “I would never sit back in a rocking chair, waiting for someone to help me”. No one could have had a more active old age．

She was born on a farm in New York State, one of five boys and five girls. At 12 she left home and was in domestic service until at 27 she married Thomas Moses, the hired hand of one of her employers. They farmed most of their lives, first in Virginia and then in New York State, at Eagle Bridge. She had ten children, of whom five survived; her husband died in 1927．

Grandma Moses painted a little as a child and made embroidery (刺绣) pictures as a hobby, but only changed to oils in old age because her hands became too stiff (僵硬的) to sew and she still wanted to keep busy and pass the time. Her pictures were first sold at the local drugstore and at a market and were soon noticed by a businessman who bought all that she painted. Three of the pictures were exhibited in the Museum of Modern Art, and in 1940 she had her first exhibition in New York. Between the 1930's and her death, she produced some 2,000 pictures: careful and lively portrayals of the country life she had known for so long, with a wonderful sense of color and form. “I think really hard till I think of something really pretty, and then I paint it” she said.

Macao Tower AJ Hackett Bungee Jump

The Macao Tower, 338 meters tall, is the world's 10th highest tower, with a variety of activities, such as gambling, eating and entertainment. One of the famous activities is the bungee jump. The AJ Hackett Macao Tower Bungee Jump is 233 meters high, making it a Guinness World Record as the highest commercial bungee jump in the world. Raise your arms and off you go! If you are not daring enough to jump that height, you can try the skywalk on the 57th floor - it's still remarkable. Grab this chance and tick off this item on your bucket list.

Grab a traditional Portuguese dinner

Macao was colonized by Portugal before 1999. As a result, Portuguese culture is deeply into many corners of Macao. Many Portuguese settled and opened Portuguese restaurants in the special administrative region, but the flavor is more adaptable to Chinese people.

Visit a museum

Macao, as a tiny little city with only an area of 30.5 square kilometers, has 23 eye-catching museums. Due to its unique history, both Eastern and Western historical sites can be found. Many of them are preserved for cultural heritage, tourist spots or museums, such as the Grand Prix Museum, Maritime Museum and Wine Museum.

Selfie(自拍) at the Ruins of St. Paul

The Ruins of St. Paul is the signature landmark of Macao. The ruins consist of the St. Paul's College and the Church of St. Paul, built in 1583. However, after three fires in 1595, 1601 and 1835, the church was seriously damaged. Surprisingly, after the rebuilding and fires, the huge front part and the front stairway remain unburned.

Genome editing brings many exciting possibilities.is well-known to you, genes play a critical role in shaping our lives, and our own personal genome contains information that helps determine our lifespan and affects our chances of contracting certain diseases. As a result, geneticists (try)to identify which genes relate to which diseases, as they believe genome editing is effective means of disease treatment and prevention. In the near future, it will serve as a new weapon in the fight against diseases, (lead) to a fundamental change in our approach to health care. However, the technology continuing to develop at a fast pace, questions arise about how to use it(appropriate).Genome editing also brings us some moral problems. Therefore, many people have all started (wrestle) with such issues. We have to find out how to keep the technology from running wild. This means(put) appropriate controls in place to make sure that genome editing will work to our advantage. If we didn't have them, genome editing could be as dangerous as a car out of control. In a word, there (be) still much to be explored and debated on genome editing. Without doubt, genome editing is one of the(great) innovations in the history of science.

Fruits Are Less Fattening Than Others

Health authorities recommend food with added sugar be limited within 5% to 10% of calories. But don't worry about the sugar we get from whole fruit. The natural sugar in fruits comes packaged with valuable things, including vitamins, minerals, and other healthy chemicals.

, two features providing some natural serving control.

As for fewer calories, apples definitely take the cake. However, such control disappears when fruits are juiced or dried. . But it wouldn't be hard to consume 4 or 5apples if we drank apple juice or ate dried ones. Consumption of whole fruit decreases the risk of diabetes (糖尿病), while fruit juice performs oppositely.

Fruits contain glucose (葡萄糖), fruit sugar, and other sugars in varying amounts. Most fruits contain more glucose than fruit sugar. These two types are working differently. Glucose is absorbed directly into the bloodstream. Fruit sugar, on the other hand, is processed in the liver.

, so it is often recommended to diabetics precisely. It also tastes sweeter than glucose, providing more sweetness for less sugar and fewer calories.

Diets high in sugar are a problem. Eating large amounts of sugar will flood the body with both glucose and fruit sugar. Too much glucose impairs blood sugar metabolism (新陈代谢), while too much fruit sugar harms the liver. Taking in too much sugar means taking in too many calories. ..

. Something that may be harmful in high amounts may be harmless or beneficial in small amounts. With a balanced and calorie-appropriate diet, the amount of diverse sugar you get from several servings will not cause you diabetes, liver damage, or turn your body into a fat storage factory.

Called the 4th industrial revolution, 5G will likely bring huge changes to our daily lives. Most importantly, it seems set to revolutionize health-care.

One of the most exciting and publicized uses of 5G is telesurgery (远程手术). This is when a surgeon remotely performs an operation on a patient. They may not be in the same room, nor even the same country! In January 2019, the world's first remote operation was performed in Fujian province. A doctor controlled robotic arms through a 5G network to remove the liver of a laboratory test animal. Two months later, China completed its first 5G-based human brain operation between a doctor and a patient located more than 4,000 kilometers away.

Team leader Tian Wei told Xinhua News Agency, “The combination of 5G technology and surgical robots is a huge technological advance that will help us share our skills with more patients in distant regions.”

“People across society can now have access to top medical resources. In the future, using robots and 5G will be common. The medical community will be smarter,” he added.

These advances are only possible with 5G.The high speed of the network means there is no significant latency between a doctor's movements in one place and a robot's in the other. This allows doctors far more precision than on a 4G network. It's the same as playing a computer game online. Slow connections mean shaking and unpredictable movements.

5G will also bring everyday benefits to healthcare. Before treatment, 5G will support a large number of high-definition (高清晰度的) video calls with doctors and provide immediate advice for those who can't visit hospitals. After being treated, wearable devices will send data in real time to doctors, allowing hospitals to monitor recovering patients at their homes.

5G technology aims to ensure everyone has access to good health-care. As 5G is rolled out, we may realize the world where robot operations and home health-care become common.