【推荐1】Artificial intelligence (AI) technology may soon be a useful tool for doctors. For example, it may help them better understand and treat diseases like breast cancer (乳腺癌) in ways that were not possible.

Rishi Rawat teaches AI at a University in Los Angeles. He is part of a team of scientists who are researching how AI and machine learning can more easily recognize cancerous growths in the breast. He says, “You put information about cancer cells (细胞) into a computer and it will learn the cancerous growth patterns. The pattern recognition is very important to making decisions.”

At present, researchers have to take a thin piece of tissue (组织), put it on a small piece of glass and add color to better see the cell-growth patterns. That process could take days or even longer. Scientists say artificial intelligence can do it better than just count cells. Through machine learning, it can quickly recognize patterns, or structures, and learn how the cells are organized.

The hope is that machines will soon be able to make a quick recognition of cancerous cell-growth patterns that is free of human mistakes. Rawat adds that the process could be done “for almost no cost for the patients”. But having a large amount of information about cells is important for a machine to effectively do its job. Once the cancerous growth pattern is recognized, doctors still have to treat the patient. The form of treatment depends on the kind of cancer.

David Agus is another researcher of the team. He believes, “Computers will help doctors make better decisions and look for those patterns that the human brain can’t recognize by itself. But they will not treat patients.”

【推荐1】Is Society Too Dependent On Technology?

Just think, what would happen if your computer, iPad or laptop crashed today? What if someone took away your phone for some days or perhaps you lost it? If thinking about these incidences makes you stressed, you are not alone.     1    

Most of us cannot go for a minute without looking at our phones and the fear of the battery dying is huge. If you happen to work in offices you may be familiar with this trend.     2     Anyway, it's true. How can work continue if it's hard to send an email to a colleague or customer? This is common in almost all offices.

    3     Those evening games after school are over; watching cartoons on a Sunday or playing with friends are no longer there. Today, most kids remain indoors playing computer games or with a smart phone. Technology has taken all their time.

Society may have gone too far in technology dependence. It has become so huge that doctors have recommended for "technology detox".     4     If not, according to Oxford Dictionary, Technology Detox is a period during which an individual avoids using any electronic devices including computers, smart phones, etc., as a chance to reduce stress and focus on social interaction in the outside world.

Well, the choice remains in our hands. We must agree that society is being carried away by the increased inventions being introduced in our lives today.     5     Meanwhile, we should have the discipline to turn it off when we are supposed to experience life in reality.

【推荐2】If you grew up watching the kid’s television channel Nickelodeon, you will probably understand that there is nothing greater than enjoying its special bright green slime (水晶泥). The week of May 11, astronauts aboard the International Space Station (ISS) joined the slime.

Nickelodeon sent two kilos of its green slime into space in the summer of 2019. The Slime in Space project’s idea was to create an educational trip for teachers to use in class. The green slime was also used to guide astronauts through a series of experiments that were designed to learn more about how slime acts in microgravity (微重力，失重).

Researchers from Portland State University (PSU) were excited to design the experiments for the project. Mark Weislogel and his partner designed eight shows for NASA astronauts and European Space Agency astronaut aboard to perform.

If you’re wondering what we could hope to learn from sending slime into space, the answer lies in its very name. Slime is slimy. This is because it is a liquid that is thicker than liquids like water. This makes slime act in unexpected ways in the microgravity of the ISS. Improving our understanding of how thicker liquids act in space may help us improve the design of systems that something was designed with Earth’s gravity in mind.

“Interestingly, we consider liquid on Earth 25 that takes the shape of its container,” Koch tells CNN. “Water just turns into a ball in microgravity, so we’ve had to have a new understanding of different kinds of matter in space. This experiment shows how microgravity can help us understand things on Earth, especially the things we take for granted.”

【推荐3】The Notre Dame (巴黎圣母院) fire has been put out, but its wooden roof has been largely damaged. The terrible accident causes a sudden sharp pain to people around the world, “What a pity that we cannot see the damaged parts of the wonder anymore.”

But the good news is that there is at least one way of seeing them, namely through a video game called Assassin’s Creed: Unity. In this game, the player can travel to one city after another and enter the buildings exactly like what they are in reality, and see Notre Dame as it was before the fire. In addition, with VR technology, one can even look around the undamaged Notre Dame as if it is still there. Maybe digital technology could help to better protect architectural cultural heritage.

The idea of digitalizing ancient buildings, making digital models of them so their data can be saved, dates back to the 1990s and the necessary technology has continued to advance since then. By scanning the ancient buildings with lasers (激光器), building 3D models with hundreds of images, as well as measuring everything precisely (精准地), engineers can make a copy as “same” as the real one.

As computers and smartphones are hugely popular, the digital replica (复制品) or digital copy has great practical value. It allows tourists to feel the cultural relics without touching them, which helps protect them. The virtual (虚拟的) tour of Dunhuang Grottoes in Gansu Province is a good example of this as tourists can view the paintings without standing near them. What’s more, it keeps all the information of the cultural relics. Even if the original ones are damaged one day, people can still know what they were like and can build a replica if they want.

Time is the biggest problem to architectural heritage. Maybe we will have better technologies in the future, but the digital technology offers a practical way to keep architectural cultural heritage at the moment.

【推荐1】If you say, “The cat’s out of the bag” instead of “The secret is given away,” you’re using an idiom. The meaning of an idiom is different from the actual meaning of the words used. “An apple a day keeps the doctor away” is a proverb. Proverbs are old but familiar sayings that usually give advice. Both idioms and proverbs are part of our daily expressions. Many are very old and have interesting histories. See how many of these expressions you know.

“Bury the hatchet.”

Native Americans used to bury weapons to show that fighting had ended and enemies were now at peace. Today, the idiom means to make up with a friend after an argument of fight.

“A close shave.”

In the past, student barbers learned to shave on customers. If they shaved too close, their customers might be cut or even hardly escape serious injury. Today, we use the idiom if a person narrowly escapes disaster.

“Raining cats and dogs.”

In Norse mythology the dog is associated with wind and the cat with storms. This expression means it’s raining very heavily.

To “shed crocodile tears.”

Crocodiles have a reflex that causes their eyes to tear when they open their mouths. That makes it look as though they are crying while swallowing their food. In fact, neither crocodiles nor people who shed “crocodile” tears feel sorry for their actions.

“Saved by the bell.”

In 17th-century England, a guard at Windsor Castle was accused of falling asleep at his post. He claimed he was wrongly accused and could prove it; he had heard the church bell chime (鸣响) thirteen times at midnight. Townspeople supported his claim and he was saved. Today we think of the bell that ends a round in boxing, often saving the boxer from injury, or the bell at the end of a class period, saving you from more work. Now this idiom means rescue from a situation at the last possible moment.

【推荐2】It’s school time again! You’re probably feeling excited and maybe a little sad that summer is over. Some kids feel nervous or a little scared on the first day of school because of all the new things: new teachers, new friends, and even a new school. Luckily, these “new” worries only stick around for a little while. Let’s find out more about going to a new school.

Most teachers kick off the new school year by introducing themselves and talking about all the stuff you’ll be doing that year. Some teachers give students a chance to tell something about themselves to the rest of the class, too. When teachers do the talking on the first day, they often go over classroom rules and school rules so you’ll know what’s allowed and what’s not. Please pay close attention!

You might already know a lot of people in your classes on the first day, but it’s a great day to make a new friend, so try to say hello to kids you know and new ones that you don’t. Make the first move and you’ll be glad you did, and so will your new friend!

Seeing friends you haven’t seen during vacation can make the first day a good one. You can make the day feel special by wearing clothes that you really like. Maybe you got a great T-shirt on one of your vacations, or a pair of sneakers（运动鞋）. It also can make you feel good to be prepared and have all the things you need, such as pencils, folders（文件夹）, and whatever else you’ll be needing. But make sure that you pack them the night before in case you don’t have time in the morning.

【推荐1】The sun appears to experience far fewer changes in brightness and intensity than other stars like it. Researchers reported last week on their examination of 369 stars. They compared each one to the sun in terms of surface temperature, size and rotation. They found that on average, the other stars had five times more brightness variability than our sun.

The lead author was Timo Reinhold, an astronomer with the Max Planck Institute for Solar System Research in Germany. He told the Reuters news agency that the variability in brightness results from dark spots on the surface of the star moving in and out of view.

“A direct measure of solar activity is the number of sunspots on the surface,” Reinhold said. “Finding such stars with very similar parameters as our sun but being five times more variable was surprising.”

The sun —made up mainly of hydrogen and helium—is an average-sized star that formed more than 4.5 billion years ago. It stretches about 1.4 million kilometers across and has a surface temperature of 5,500 degrees Celsius.

The researchers compared scientific data on the similar stars to historical records of the sun’s activity. The records included about 400 years of observational data on sunspots. The researchers also studied about 9,000 years of data based on chemical element variants in tree rings and ice buildup tied to solar activity. These records show the sun has not been much more active than it is now.

The researchers said increased magnetic activity related to sunspots can lead to electromagnetic events that effect Earth. For example, large releases of plasma—a collection of charged particles—from outer areas of the sun’s atmosphere could cause problems for satellites and other communications equipment.

The discovery may be good news for life on Earth A much more active sun might have had more major effects on Earth’s geology and ancient climate. “A ‘too active’ star would definitively change the conditions for life on the planet, so living with a quite boring star is not the worst option,” Reinhold said.

The findings, he noted, do not rule out the possibility that the sun may be in a quiet period and could become more variable in the future. However, the researchers say there are no signs that solar activity will be increasing any time soon.

【推荐2】Which hand do you use to write your name? Which foot do you use to kick a ball? You probably use the same hand or foot. That's called your dominant side.

About 90 percent of humans are right-handed. Scientists want to know whether other animals also have dominant sides. So they give simple challenges to zoo animals and pets.

At first, chimpanzees（大猩猩） appeared to be left-handed. Dr. Hopkins watched chimpanzees as they went “ants fishing", using sticks to pull ants out. Most of the chimps did the job with their left hand. However, when chimpanzees ate butter from a narrow pipe, they tended to use the left hand to do the easy part (hold the pipe) and a finger on the right hand to do the hard part (reach in for the treat).

Does that mean chimpanzees are left-handed for some tasks and right-handed for others? That's not likely. Dr. Hopkins says the chimps may have used the weaker hand to pull out the ants and the dominant hand to hit the insects and put them in mouths.

But how about other animals? Dr. Wells wondered if cats are right- or left-pawed. At the beginning. he gave the cats the simple task of moving across the floor. The cats showed no preference; they used either paw. Dr. Wells also made the cats perform given movements. The researcher dropped a small fish into a can and wrote down which paw each cat used to fish out the treat. All of the female cats except one used the right paw. For males, 19 out of 21 used the left paw. Dr. Wells tested each cat many times to make sure it really preferred to use one paw instead of the other.

【推荐3】When it comes to thrilling places to travel to, the nation of Thailand has got to be at or near the top of the list. The beaches of Thailand are simply amazing. Here is a look at the four best beaches in all of Thailand.

This small beach attracts some huge crowds, but it is still worth a visit thanks to what is widely regarded as some of the best sights in the whole country. The Maya Bay Beach is located on a small island and is only accessible(可进入的) via boat or passenger ferry.

For the traveler looking for a quite unforgettable beach experience during their visit to Thailand, a trip out to Lamai Beach in Samui is a must. The sandy areas are long and wide with plenty of room for everyone. The water is inviting and easy to access.

Patong Beach is not only one of the most beautiful and popular beaches in Thailand, but it is the largest beach on the popular island of Phuket. The soft white sand is a great place to relax. Some of the many great activities that travelers can join in during a visit to Patong Beach include jet skiing, kayaking, surfing, diving, snorkeling(浮潜) , swimming, and more.

Haad Rin is one of the most popular party spots in the country, for both locals and travelers. All month long, during most parts of the year, there are some special entertainment(娱乐), eating, and socializing opportunities.