1 . Diplomacy (外交) is an art. It requires not only strategy, but also other aspects, including intuition, persuasion, and even tricks, human skills that have long been unreachable to even the most powerful artificial intelligence (AI) approaches. Now, an AI algorithm (算法) from a high-tech company has shown it can beat many humans in a game of diplomacy, which required both strategic planning and negotiations with other players. The work, researchers said, could point the way toward virtual exercise coaches and conflict mediators (调解员) .

AI has already beaten humans in some games of strategy. It is also proving powerful at natural-language processing, in which it can generate humanlike text and carry on conversations. In the game of diplomacy, seven players vied for control of Europe. On each turn, players issued orders regarding the movement of army and naval units, following discussion with other players, whom they could attack or support.

There are two technical innovations noted by Jonathan Gratch, a computer scientist at the University of Southern California who studies negotiation agents. First, the Al agent’s com-munication is grounded in multistep planning. Second. the Al agent keeps its remarks and game play within the range of human common practice.

To test its skill, the researchers had the Al agent play 40 online games against humans. It placed in the top 10% of players who’d played at least two games. “In a game that involves language and negotiation, that agents can reach human equal level is very exciting,” said Yu, a computer scientist at Columbia University.

According to Brown, a computer scientist at the company who co-authored the paper, the work could lead to practical applications in fields that now require a human touch. One specific example is that virtual personal assistants might help consumers negotiate for better prices on plane tickets. Gratch and Yu both see opportunities for agents that persuade people to make healthy choices or open up during therapy.

2 . How to prepare for a thrilling hike? Hiking needs mental and physical preparation weeks before the material day. If you’re a fan of hiking mountains. Here is a guide to help you.

You need to train your body at least three months before the challenge.     1     You can start with baby steps and gradually take more demanding exercises and distance. You can often carry your hiking stick to promote stability. Keep track of your progress to help you achieve your goal.

    2     . Wear light absorbent pants to reduce friction and promote absorption of sweat. Long pants keep you safe from stinging weeds, insects and tough weather.

    3    

You must consider various factors before purchasing the most appropriate hiking shoes. First, mind the terrain (地形) of the hiking ground. A mild terrain will do fine with light shoes. On the other hand. A tough, hard and mountainous terrain require hardy hots to help navigate the rocky grounds.

Your bag is your lifeline when hiking. Water is the most essential itch when hiking. The body performs best when you hydrate frequently throughout the challenge. Carry adequate clean water and sip often.     4     These are primary tools to help you find your way, water points, emergency towers, and other places. Hope for the lest but always prepare for ever-agencies. Thus, ensure you have a flash light, a lighter and a whistle.

Hiking is a refreshing way of keeping fit, having fun and building resilience.     5    

When was the last time you blew too high     1     a swing and lost your stomach, or burst out laughing so hard that you start crying?

A lot of us may be still recovering from antisocial habits     2     (form) in the tough time. And so far, some events out of our control     3     (have) a bad effect on our health. Last fall, 76% of adults surveyed by the American Psychological Association said stress from politics. race relations and violence had affected their health. They reported     4     (experience) headaches, depression, nervousness and exhaustion.

But     5     (solution) may be hiding in plain sight. Two recent books argue that making room for more fun in your life could counteract (抵消) both the stress and the tendency       6     (escape) it by zoning out online.

In a book published in January, psychologist Mike trucker makes the case that pursuit of fun experiences may be even more valuable than seeking the sometimes abstract goal of happiness. In Rucker’s opinion, happiness is     7     state of mind. But fun is something we can do for     8     (we). It doesn’t require education, money or power. All it requires is intentionality. We     9     (actual) ignore the importance of fun. We are so casual and careless about     10     we use things around us to make us fun, but it is important for our happiness and health.

4 . Some Ways to Improve Your Study

As a high school student, it is important for you to do well in study. The better ways you have, the better you will learn. But do you know how to improve your study?     1    

●Pay attention in class. First, don’t make any noise in class.     2     Last but not least, get yourself involved in classroom activities.

●    3     If you are not sure how to take notes, start by writing down the important points that your teacher mentions or writes on the blackboard. It’s a good idea to keep your notes in order by subject. It can help you master what you have learnt.

●Go over your lessons.     4     By going over your lessons, you can understand and remember better. So you should review your lessons now and then after class.

●Learn from your classmates. Everyone has his own advantages. You should learn not only from your teachers but also from your classmates. You can learn in pairs or in groups to solve problems.     5    

I’m sure you will improve your study sooner or later if you follow the ways above.

5 . My father was the kind of guy who could walk into a room full of strangers and leave with new best friends for life! He was a hard worker and was known as “Mr Fix-It” to everyone. He was also one of the most cheerful, affable (和葛可亲的) and gentle people you would ever meet, which made us, his beloved daughters feel proud.

But when Dad was in his fifties, my family began to notice him struggling. His work and skills began to become worse and worse, and he became depressed and withdrawn. This was not the man I knew. At the age of fifty-eight, Dad was diagnosed with early-onset Alzheimer’s disease. As for our family, it was the worst.

Our first step was to attend a meeting hosted by the Alzheimer’s Association to learn more about the disease and programs that might help us. That meeting inspired me to start a Walk to End Alzheimer’s^® team. But I still wanted to do more. In 2017, I became a board member of the Alzheimer’s Association Delaware Valley Chapter.

The loss from this disease is gradual. My father’s decline continued for several years. Losing my father more and more each day was leaving a big hole in my heart and my life. I decided to fill that hole with action to honor my father.

That’s why I recently decided to leave a gift to the Alzheimer’s Association by naming it as a beneficiary of my retirement plan. My future gift will provide money to support research because I don’t want another person in my family or someone in other families to have to suffer from Alzheimer’s disease.

I am so proud to be able to honor my father and other family members who lost their fights to Alzheimer’s in this way. My dad was an inspiration to me, and I hope, through my gift, I can inspire others to join in the fight to end Alzheimer’s.

6 . Conifers (针叶树) are generally better than broad-leaved trees at purifying air from pollutants. But deciduous (落叶的) trees may be better at taking in particle-bound pollution. A new study led by the University of Gothenburg shows that the best trees for air purification depend on the type of pollutants involved.

Trees and other greener in cities provide many benefits that are important for the well-being of residents. Leaves and needled on trees filter air pollutants and reduce exposure to poisonous substance in the air. But which trees purify the air most effectively? Researchers from the University of Gothenburg have collected leaves and needle from eleven different trees growing in the same place in the Gothenburg Botanical Garden (GBG) to analyse which cub-stances they have absorbed.

“This tree collection provided a unique opportunity to test many different species of trees with similar environmental conditions and exposure to air pollutants,” said Jenny Klingberg, a researcher of the GBG

A total of 32 different pollutants were analysed, some of which are bound to articles of various sizes. Others are gaseous. This project has focused on paths (多环芳烃). In cities, traffic is the biggest source of these pollutants, which are released due to incomplete burning in engines.

“Our analysis show that different species of trees have different abilities to absorb air pollutants. Conifers generally absorb morn gaseous paths than broad-leaved trees. Another advantage of conifers is that they also act as air purifies in winter, when air pollution is usually at its highest,” said Jenny Klingberg.

“This study contributes to improving our understanding of the ability of trees to clean the air and which species are best at absorbing air pollutants,” said Jenny Klingberg. This known-edge is important for urban planning when designing sustainable cities. While trees and green-era can contribute to better air quality in cities, at the end of the day, the most important measure is to reduce emissions.

7 . When I was a primary school student, I didn’t like doing housework at all. I thought I was a little child and that I just needed to study hard to get good grades. So I didn’t do any_______at home.

One day, my mother_______back home from work. She found that I had made a mess (乱七八糟) in the house. My books and clothes were everywhere. She was annoyed (恼火) and said to me_______, “From now on, you must do some housework every day!” Hearing my mother’s _______, I felt unhappy. But I still did as she said.

Doing housework was more difficult than I had expected. I began to understand that life was not _______ for my parents. They had to do a lot of housework after they came back home_______work. So I decided to do more housework. I tidied my room and _______my clothes. I helped my_______cook meals in the evening. My parents praised _______for my changes.

Now I realize that doing housework can not only reduce our parents’ burden (负担)________also help us to learn many basic life skills.

8 . From life-saving medical technologies to everyday household items, these four brilliant women left an indelible mark on history with their inventions.

Before the invention, clothing used to be ironed on wooden planks balanced between chairs. Though it seems like a simple invention, Bone put a lot of thoughts into it, which was evident in the end product. Aside from solving the initial problem of uneven ironing, Boone also made the ironing board’s legs folded for storage and designed a curved (弧形的) shape for the body to accommodate sleeves and curved areas. Alongside her invention, Boone also became one of the first African-American woman to receive a patent.

Though there is no way of confirming the account, ancient writings (including Confucius’) attribute the first invention of silk to the Chinese Empress Lei Zu, who was four-teen at the time and had been enjoying tea in the imperial gardens when a fateful incident took place. A cocoon (茧) fell into her teacup and lost its cohesiveness (粘结性) upon contact with the hot water. The fact that the cocoon was a single strand of silk had drawn Lei Zu’s attention and she wove the thread into fabric, creating silk cloth.

Dr Shirley Ann Jackson broke the glass ceiling as the first African-American woman to be awarded a doctorate from MIT. She contributed to the invention of caller ID and call waiting during her research period at AT&.T Bell Laboratories, so we can now see the phone number and name of whoever is ringing our phones.

Dr Fiona Wood introduced spray-on skin repair technique to the world in the 1990s. The technique changed the way in which burn victims used to be treated, as spray-on skin repair technique can be directly applied to wounds to form a new layer of skin that promotes healing and minimises the risk of infection.

10 . Tomorrow is Father’s Day. Why not go to watch a movie with your family? Here are four great movies waiting for you at the Global Theatre.