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New discoveries and technological breakthroughs are made every year. Yet, as the information industry moves forward, many people in society are looking back to their roots in terms of the way they eat. A "locavore" movement has emerged in the United States. The movement supports eating foods grown locally and sustainably, rather than prepackaged foods shipped from other parts of the world.

Experts hold that eating local has many merits, and is expected to become a trend featuring sustainability. Erin Barnett is the director of Local Harvest, a company that aims to help connect people to farms in their area. By eating local, she argues, people have a better and more personal understanding of the impact their food consumption has on the rest of the world. "There is a way of connecting the point, where eating locally is an act that raises our awareness of sustainable living," Barnett says.

The United States' agricultural output is one of the highest in the world, says Timothy Beach, a professor of geography and geoscience at the University of Texas in Austin, Texas. "There's just no other place on Earth where the amount of input is so productive," Beach says of American agriculture. "Nobody can cut off the food we need."

However, the US food system is not sustainable because of its dependency on fossil (化石) fuels, says Beach. Equipment used on "extremely productive" farms is quickly consuming Earth's natural resources, particularly oil. Additionally, the production of agricultural supplements (补充剂)，such as fertilizer, uses large amounts of energy.

The world has used close to half of the global oil supply, Beach says, and the second half will be consumed at an even faster rate because of the growing population and economic development. Although many businesses are experimenting with wind, solar, and biofuel, Beach says there's nothing that we see on the horizon that can replace it. "There is no way on Earth we are using fossil fuels sustainably. Then we have to reconsider the impact of eating local," he says.

When ancient Egyptians put pen to paper—or, more accurately, ink to papyrus (纸莎草纸) —they took steps to ensure that their words would last forever, a new study suggests. Researchers from the University of Copenhagen have found that ancient scribes (抄写员) likely added lead to their inks to help their writing dry. More than 1,000 years later, reports Cosmos Magazine, 15th-century European artists employed lead as well. According to the London National Gallery, lead-based pigments found in many Old Master paintings are "known to aid the drying of paint films."

According to a statement from the University of Copenhagen, the study's authors analyzed 12 papyrus pieces dating back to between 100 and 200 C.E., when Egypt was under Roman control. The team used X-ray microscope to determine the raw materials used in different inks, as well as the chemical structure of the dried ink attached to the ancient paper. Ancient Egyptians began writing with ink—made by burning wood or oil and mixing the resulting material with water—around 3200 B.C. Typically, scribes used black, carbon-based ink for the body of text and reserved red ink for headings and other key words in the text. Though black and red inks were most common, shades of blue, green, white and yellow also appeared in ancient texts.

The researchers write that the Egyptians created red inks with iron-based combinations—most likely natural earth pigments. The team also identified the presence of lead. They were bowled over that there was no lead white or other combinations that would typically be present in a lead-based pigment. Instead, the ancient ink's lead pigments appeared to wrap around the papyrus cell walls and iron particles (微粒). The resulting effect looked "as if the letters were outlined" in lead. This finding indicates that the ancient Egyptians invented a system of adding lead to red and black inks specifically for the purpose of sticking the words to paper.

The 12 analyzed papyrus pieces are part of the University of Copenhagen's Papyrus Carlsberg Collection. The documents originated in Tebtunis, the only large-scale institutional library known to have survived from ancient Egyptian times.

John von Neumann was the oldest of 3 children of a banker, and his speed of learning new ideas and solving problems stood out early. At 17, his father tried to persuade him not to become a mathematician because he might lead a poor life being a mathematician, so von Neumann agreed to study chemistry as well. In 1926, at 23, he received a degree in chemical engineering and a Ph.D in mathematics. From then on, mathematics provided well enough for him, and he never had to turn to chemistry.

In 1930, von Neumann visited Princeton University for a year and then became a professor there. His first book was published in 1932. In 1933, the Institute for Advanced Study was formed, and he became one of the 6 full-time people in the School of Mathematics (Einstein was one of the others).

World War Ⅱ hugely changed von Neumann's areas of interest. Until 1940 he had been a great pure mathematician. During and after the war, he became one of the best mathematicians who put mathematical theories into practice. During the last part of the war he became interested in computing machines and made several fundamental contributions. After the war, von Neumann continued his work with computers, and was generally very active in government service. He received many awards, was president of the American Mathematical Society and was a member of the Atomic Energy Commission. He died of cancer in 1957.

Von Neumann made several great contributions and any one of them would have been enough to earn him a firm place in history. He will be remembered as one of the greatest minds of the 20th century.

Von Neumann really was a legend in his own time, and there are a number of stories about him. His driving ability is a part of his legend. He reported one accident this way: "I was driving down the road. The trees on the right were passing me in an orderly fashion at 60 miles per hour. Suddenly one of them stepped in my path."

Visiting is a great way to get the feel of everyday life at Harvard College. Take the chance to meet our students and explore the Cambridge/Boston area. We know that many students will not be able to visit colleges before applying. As an alternative, examining our website will give you a vast amount of information about Harvard's past, present, and future.

Summer 2024 schedule

From June 22, 2024 to August 9, 2024, all admissions (招生) information sessions and tours will start at Sanders Theater in Memorial Hall, 45 Quincy Street, Cambridge, MA. The schedule will feature only one information session per day at 10:00 am, followed by a tour at 11:00 am, from Monday through Saturday. Information sessions and tours will not be offered on June 27, 2024, July 3, 2024, July 4, 2024, August 7, 2024 or August 8, 2024.

From August 10, 2024 to August 21, 2024, all admissions information sessions and tours will start at Agassiz House, 5 James Street, Cambridge, MA. The schedule will feature information sessions each weekday at 10 am and 2 pm, followed by tours of the campus at 11 am and 3 pm.

Registration (报名) is strongly recommended.

Information Sessions and Tours

Admissions tours last about 75 minutes and focus on undergraduate (本科生) life at Harvard. They are intended for students considering entrance to the College. For historical tours, visit the Harvard Information Center.

Please allow one hour before scheduled events to find parking and navigate your way across campus to Sanders Theater. Contact the Visitor Center at 617495-1551 with any questions.

Tour the School of Engineering and Applied Sciences (SEAS)

Take a student-led tour focused on Harvard's undergraduate programs in engineering and applied sciences. (Groups of 10 or more must email communications @fas.harvard.edu to schedule a separate tour.) Tours last about 60 minutes. For our current schedule please refer to our Visitor Center Calendar.

Virtual tour of Harvard College

Take our online guided tour to see the Harvard campus at any time, from any location. Student guides lead you through the places in which they live and learn including dorm rooms, classrooms, Widener Library, the freshman dining hall and more.

Palm trees seemed to speed by the car window. Eight-year-old Katrina began to get nervous, the way she always did in new surroundings. She felt a thin shine of sweat above her lip in spite of the car's cool air. "The aquarium won't be crowded, I bet, and people are gonna notice me. I hate wearing this prosthesis leg (假肢)." She felt tears pinprick behind her eyes. "Not being normal is the worst."

Entering the Clearwater Marine Aquarium, around a comer of a tank, she noticed an animal that looked unusual. "Is that a dolphin with stump (假肢) instead of a tail?" she asked an aquarium staff. He nodded. "Yes, that's Winter. She's a very special dolphin." "What happened to her?" "This girl dolphin was found off the coast of Florida, caught in a crab trap. The ropes from the trap cut off the blood circulation to her tail. So she lost her tail," Katrina caught her breath. "She's just like me. She's just like me." "But she struggled to survive. Now she wears a prosthetic tail part of the day to help her swim like a dolphin's supposed to swim." the staff continued, "Every day, Winter shows us anything is possible if we believe."

Katrina felt her heartstring was touched. She waved at Winter. Looking at Katrina, Winter raised her flipper (鳍), came to her and lifted her head. "She's swimming right into my arms," Katrina said tearfully. They made eye contact. She seemed to be speaking to Katrina: We're the same.

Back home, all Katrina talked about was Winter. For two weeks, she cried and begged her mother to take her back to Clearwater.

Unfortunately, another blow hit Katrina. She fell on the hardwood floor at home and broke her other leg. Katrina was in constant leg nerve pain. After a through examination, the doctor explained bad news that she would need another surgery on her leg. Years of a living hell came back to her.

She started fearing surgery again and refused to take any.

注意：1. 续写词数应为150左右；2. 请按如下格式在答题卡的相应位置作答。

Katrina's mom decided to take her back to Clearwater.

Finally came the day when Katrina was in the hospital again.

我们学校即将举办科技节，现就举办科技节开幕式的场所（学校体育馆或校外某科技场馆）广泛征询同学们的意见。假设你是我校学生李华，请你给学校写一封电子邮件，发表你的看法。

内容需包括：1. 你的选择；2. 说明理由。 

The first time I entered the busy Chinese hotpot restaurant, I was immediately impressed by the delicious smells and lively chatter. The waiter handed me a menu, but it was predominantly written in Chinese, characters were completely beyond my comprehension. With some hesitation, I decided to take leap of faith and pointed at a few items on the menu that looked (invite). 

As the bubbling pot was set (boil), I watched with fascination as the waiter poured a fragrant broth (肉汤) into it. (mix) with chili peppers, Sichuan peppercorns, and other mysterious spices, the pot released a mouthwatering aroma into the air. 

The moment of truth came I tentatively dipped my chopsticks into the broth and added a slice of thinly sliced beef and a handful of vegetables. The first bite was an (explode) of flavors. 

The numbing sensation from the Sichuan peppercorns danced on my tongue, and I understood the reason for the restaurant's name, "Spicy Heaven."

I continued to experiment, trying various ingredients and(marvel) at not only the food, but also the adventure, the(delight) surprise of a world of flavors in a single bubbling pot. my limited knowledge of the Chinese language, I laughed with my newfound friends and shared stories.

Gumah, growing up in Zanzibar, an island off the coast of Tanzania, was awarded the Nobel Prize in Literature on Thursday.

He is the first Black writer to 1 the prize since Toni Morrison in 1993, and some observers saw his 2 as a long delayed corrective(矫正) after years of European and American Nobel laureates(获得者). In his 10 novels, Gurnah has often explored the 3 of exile(流放), identity and belonging. They 4 "Memory of Departure" "Pilgrims Way" and "Dottie", which all deal with the immigrant experience in Britain.

Gurnah's first language is Swahili, but he 5 English as his literary language. He drew on the imagery and stories from the Quran, 6 from Arabic and Persian poetry, particularly "The Arabian Nights". The news of Gumah's Nobel 7 by fellow novelists and academics who have long argued that his 8 deserve a wider audience.

Gumah was born in Zanzibar, which is now 9 of Tanzania, in 1948. Then, in 1964, he fled to England. 10 , poor; homesick, he began to write scraps(片段) in his diary, then 11 entries, then stories about other people. In his 20s, he started 12 fiction. Then he finished his first novel, "Memory of Departure", about a young man who flees a failed uprising, at the same time he was writing his Ph. D. dissertation(论文). 13 , he became a professor of English.

Though Gurnah hasn't lived in Tanzania since he was a 14 , his homeland always inspires him of his imagination, 15 , he said "my homeland always asserts myself in my imagination, even when I deliberately try to set my stories elsewhere".

We need to be conscious of the fact that people around us influence us in subtle ways that may encourage us, or hamper it. Motivational speaker Jim Rohn famously said, "You're the average of the five people you spend most of your time with".

If this "circle" of people is goal-driven, and encouraging, we can experience a positive impact on our actions. On the other hand, if the people around us are negative and restrictive, we may subconsciously "live-up" to these qualities and stop our own personal growth in the process.

How do you identify who is influencing you? Be mindful of the conversations you have with people and the activities you engage in with them. What are the opinions that dominate in your social group? If there is a discrepancy between what you are and where you want to be, look at your circle of five and you will see how instrumental they are in influencing your path. Identify and exclude time and energy vampires from your circle of five.

Nourish your circle

Once you identify the people who belong to your reference group, it is important to nourish these relationships. Different individuals evolve at a different pace. The important part is to be aware of this living and changing "circle of five". Of course, five is a rough guide. It could be slightly more or less. Let this circle of five motivate you, help you gain courage, and take the right actions.

 Play this role sincerely and demonstrate a growth mindset to anyone who lists you as part of their circle of five.

A. Know your circle

B. Dominate your circle

C. Over time, this core circle may change.

D. It means that this "circle" can help you live a better life.

E. The influence of those around us can be quite significant.

F. Also remember, just like others influence you, you also have an influence on others.

G. What are the similarities between you and the five people you are constantly close to?

In 2022, campaign group Fashion Revolution Chelsea dye garden for its Chelsea Flower Show presentation. An ancient craft, natural dyeing is a practice whose time has come again, with hand tie-dyed fashion also making a comeback in recent years. 

The revival has been encouraged by Covid lockdowns, "which allowed people to explore the craft at home," says natural-dyeing enthusiast and teacher Susan Dye. It's unlikely, though, that the practice would have caught on in quite the same way if not for a continually growing discomfort about fashion's heavy footprint. From carbon emissions to animal cruelty, fashion is under considerable inspection. "Put it this way, 97% of dyes used in the industry are petrochemically (石油化学产品) based," says sustainable fashion consultant Jackie Andrews, who helped advise the UN Ethical Fashion Initiative. "We've got net zero targets which mean we're going to have to remove all those petrochemicals from the manufacturing cycle."

Fashion is a huge polluter. According to the UN Environment Program, the industry is responsible for up to one-fifth of all industrial water pollution — due to the fact that most clothes today are produced in poorer countries where regulation is weak and enforcement weaker still. Waste water is dumped directly into rivers and streams, poisoning the land as well as the water sources of people and animals who rely on them. 

It's easy to see why someone who cares about people, planet and animals, as well as clothes, might turn to natural plant dyeing. From the beauty of the raw materials-often wild plants-to the property of only bonding with natural fiber like cotton and linen, from the minor footprint of upclycling old clothing that has grayed or faded over time to the vibrant and long-lasting dyeing results, plant dyeing feels like a quiet act of rebellion. This is why, while beginners start with simply changing their clothes' color, new worlds open. Many of today's natural dyers grow their own dye plants, run local community workshops, and advocate for change in industrialized fashion systems and beyond.