1 . Biar Kon, a 17-year-old student, whose parents were working in neighboring Sudan, moved to Nairobi, the capital of Kenya, to attend school. Once he _______, he needed to get some documents from the Sudanese embassy(大使馆). But when he went to look for the embassy, he couldn’t find it. He asked a few people for _______, and no one knew where it was. Then an older woman tapped him on the back.

The woman told Kon that she had seen him asking questions of multiple people as they _______, and she wondered if he needed money for food, or a place to stay. Then Kon realized that the woman thought he was _______.

They cleared up the _______, and the woman was able to offer her help. The woman’s _______ left a deep impression on Kon. And it inspired him to _______ five years later, when he moved to Boston, Massachusetts. One day, outside a coffee shop, he _______ a man who was begging for change. Kon _______ that moment five years earlier, when the woman in Nairobi had ________ him for a homeless person. So he went up to the man to see what he could do. “He told me why he was on the street—because he made a（n） ________ mistake when he was in high school, and he couldn’t get a ________ now,” Kon recalled. Kon bought the man some breakfast, and gave him a little bit of money.

Today, it’s an encounter he ________. For him, it is a ________ that you never know what people are going through unless you talk to them ________ — the way the woman in Nairobi made an effort to talk to him.

2 . Many people changed residences and are eager to get familiar with their new neighbors. Here’s a quick refresher on making the most of neighborhood relationships.

Begin at the beginning. Building good neighborly relationships starts when you or someone else moves into the area. If a new neighbor moves in, be proactive (主动的) and welcome them to the neighborhood.     1    . Consider taking a plate of cookies or a small housewarming gift. Share your contact information and offer to answer any questions they may have about the community, including your favorite restaurants or the best local service providers.

    2    . Don’t create things that are unpleasant to look at or allow your property’s condition to affect the value of neighboring homes adversely (不利地). Being kind to those around you includes keeping your yard tidy, removing snow from your sidewalks, and collecting trash and recycling bins after the truck has passed.

Be inclusive. If you are hosting a large party, consider extending invitations to your neighbors. During the holiday season, remember the people next door with a card, a homemade goodie, or an offer of assistance. Give without expectations.     3    .

Allow people to be human.     4    , and it’s impossible to know what others are going through. Don’t be too quick to assume a sligh (轻蔑) is personal or intended.

Accept it. If you have tried your best to resolve a conflict without success, let it go. Sadly, some people won’t like you whatever you do. And you aren’t going to enjoy some people.     5    . Be pleasant anyway, and be thankful that you get to live your life and they get to live theirs.

3 . Researchers at the Indian Institute of Technology (IIT) Madras have been working on a fascinating new way to identify people: using the ways of their breath. This idea could change how we unlock our phones and access secure places.

The key to this technology lies in the way we breathe out. Every person has a unique way of breathing air, which creates specific turbulence (涡流) patterns. The IIT Madras team, led by Prof. Mahesh Panchagnula, has developed a method of catching these unique patterns and using them as a biometric (生物特征识别的) signature, similar to how fingerprints are used today.

They conducted tests with breath samples from 94 people and found that their system could correctly confirm the person’s identity with an impressive accuracy of 97%. However, when it came to identifying someone without knowing who they were beforehand, the accuracy was around 50%. This means the technology is great at confirming if someone is who they claim to be, but it still needs improvement in recognizing people without any prior information. What makes this research exciting is its potential beyond just unlocking phones. It could play a significant role in personalized medicine. Since the way we breathe can give insights into our health, this technology could help doctors tailor treatments to individual patients more effectively.

In a similar study at Kyushu University in Japan, researchers developed an artificial system that identifies people based on how their breath smells. This system showed a high accuracy rate of 97.8% in identifying individuals. However, this method currently requires people to fast (禁食) for six hours before testing, indicating that it still needs to be improved to be more practical for everyday use.

These advancements in using human breath for identification are not just about adding another cool feature to our smartphones. They represent a significant step forward in biometric technology, which could have far-reaching implications in security, medicine, and personal technology. This research at IIT Madras and Kyushu University is pioneering a new way of using the unique patterns of our breath for identification purposes, potentially revolutionizing (变革) how we interact with technology and receive medical care.

4 . “A moth (飞蛾) to a flame” is often used to indicate an inescapable attraction, yet it is a strange example of animal behavior that continues to confuse people today. Scientists have raised a number of theories over the years to explain why. One holds that insects flying at night are following their nature to fly toward the brightest spot in their field of vision, which they mistake for the sky. Another suggests that insects are trying to warm themselves with the heat produced by the light. The most popular theory, though, is that insects are confusing lights with the moon or other celestial bodies (天体) that they normally use to navigate (导航).

To find out the real reason, the team carried out a first set of experiments in an insect flight area. The researchers used eight high-speed infrared (红外线) cameras equipped with motion-capture technologies to track 30 insects from three moth and two dragonfly species. They also flew lab-raised insects from six different insect orders that were too small for motion-capture technology, including fruit flies and honeybees, to make sure different insects all showed similar responses to light. Working with co-author Pablo Allen of the Council on International Educational Exchange in Monteverde, Costa Rica, the researchers put heavy cameras, lights and tripods in two field sites to gather behavioral data from insects in the wild.

The team was able to confirm that insects were not beelining to the light but rather circling it as they tilted (倾斜) in an attempt to turn their backs toward it. This behavior, known as a “dorsal light response”, normally helps insects to remain in an unchanging path of flight that is properly lined to the horizon (地平线). Artificial light that arrives from a point source causes them to fly in unpredictable patterns as they try to turn their backs to what they are mistaking for the sky.

Now research might have finally solved the mystery mentioned first: artificial light confuses insects’ ability to turn themselves to the horizon, confusing their sense of what is up and down and causing them to fly in circles.

5 . Four best day trips from Amsterdam: the ultimate travel guide

Broek in Waterland: a village fit for sea captains

If you’re looking for a getaway from the big city, Broek in Waterland is the definition of a peaceful Dutch town. With a small population of about 2,500, this village has quiet streets and picturesque nature. Its standout feature is its traditional wooden houses, with more than 80 of them considered National Heritage Sites.

Travel time by car from Amsterdam: 14 minutes

Giethoorn: Venice of the Netherlands

A picture-perfect landscape, Giethoorn is an almost entirely car-free village, replaced with boats and, of course, bicycles. You don’t want to miss a boat tour around this scenic town or a pleasant hike around the area.

Travel time by car from Amsterdam: 1 hour and 26 minutes

Marken: a former island in the Zuiderzee

Marken was separated from the Dutch mainland in the 13th century by a storm, turning it into an island in the Markermeer lake. Residents of the town built wooden houses on artificial hills to prevent more flooding damage. To this day, these picturesque homes remain a popular cultural attraction. On your walk, you can visit the comfortable town harbour or enjoy the scenic route of fields, forests and the lakeshore.

Travel time by car from Amsterdam: 27 minutes

Gouda: the birthplace of iconic Dutch cheese

Which came first, the cheese or the city? For Gouda, the city is the namesake for this world-famous cheese. The city is quaint(古色古香), but the centre is full of shops, restaurants, bars and cafés. Check out the weekly Markt (market) on Thursdays and Saturdays to see thousands of flowers of every color and buy some to take home, and the first Fairtrade Street in the Netherlands at weekends, where all street food is sustainably produced and sold!

Travel time by car from Amsterdam: 1 hour

8 . Up to one quarter of the world’s population use chopsticks as their main eating tool. Called kuaizi in Chinese, chopsticks were developed in China about 5,000 years ago. Often made of wood, chopsticks allow users to pickup pieces of food by holding together and releasing (松开) the sticks with the thumb (拇指) and first three fingers.

Before the invention of chopsticks, the Chinese used only their hands to eat. One reason why chopsticks were invented is that eating with one’s hands allowed some people to take more food than others. This was considered rude, so using chopsticks, which limited the amount of food that could be taken at one time, was thought to be a more polite practice. Another one was about the great Chinese philosopher Confucius, who was a vegetarian. He objected to the use of knives at the table, feeling that they reminded eaters of the slaughterhouse (屠宰场), so he preferred chopsticks.

At first, chopsticks were used only by nobles (贵族). Later on, during the Western Han Dynasty, which began in 202 BC, commoners (平民) began to use chopsticks as well. At that time, people used chopsticks only to eat side dishes; spoons were used for rice and for soups. During the Northern Song Dynasty, which lasted from AD 960 to 1127, noodles became a popular dish. It is very diffcult to eat noodles with a spoon, so chopsticks were used more often. Today, chopsticks are the main eating tool in China, Japan, and Vietnam; and people from countries all over the world commonly use this tool while eating Asian dishes.