1 . Turning soil, pulling weeds, and harvesting cabbage sound like tough work for middle and high school kids. And at first it is, says Abby Jaramillo, who with another teacher started Urban Sprouts, a school garden program at four low-income schools. The program aims to help students develop science skills, environmental awareness, and healthy lifestyles.

Jaramillo’s students live in neighborhoods where fresh food and green space are not easy to find and fast food restaurants outnumber grocery stores. “The kids literally come to school with bags of snacks and large bottles of soft drinks,” she says. “They come to us thinking vegetables are awful, dirt is awful, insects are awful.” Though some are initially scared of the insects and turned off by the dirt, most are eager to try something new.

Urban Sprouts’ classes, at two middle schools and two high schools, include hands-on experiments such as soil testing, flower-and-seed dissection, tastings of fresh or dried produce, and work in the garden. Several times a year, students cook the vegetables they grow, and they occasionally make salads for their entire schools.

Program evaluations show that kids eat more vegetables as a result of the classes. “We have students who say they went home and talked to their parents and now they’re eating differently,” Jaramillo says.

She adds that the program’s benefits go beyond nutrition. Some students get so interested in gardening that they bring home seeds to start their own vegetable gardens. Besides, working in the garden seems to have a calming effect on Jaramillo’s special education students, many of whom have emotional control issues. “They get outside,” she says, “and they feel successful.”

2 . Yellowstone National Park offers a variety of ranger programs throughout the park, and throughout the year. The following are descriptions of the ranger programs this summer.

Experiencing Wildlife in Yellowstone (May 26 to September 2)

Whether you’re hiking a backcountry trail (小径), camping, or just enjoying the park’s amazing wildlife from the road, this quick workshop is for you and your family. Learn where to look for animals and how to safely enjoy your wildlife watching experience. Meet at the Canyon Village Store.

Junior Ranger Wildlife Olympics (June 5 to August 21)

Kids can test their skills and compare their abilities to the animals of Yellowstone. Stay for as little or as long as your plans allow. Meet in front of the Visitor Education Center.

Canyon Talks at Artist Point (June 9 to September 2)

From a classic viewpoint, enjoy Lower Falls, the Yellowstone River, and the breathtaking colors of the canyon (峡谷) while learning about the area’s natural and human history. Discover why artists and photographers continue to be drawn to this special place. Meet on the lower platform at Artist Point on the South Rim Drive for this short talk.

Photography Workshops (June 19 & July 10)

Enhance your photography skills — join Yellowstone’s park photographer for a hands-on program to inspire new and creative ways of enjoying the beauty and wonder of Yellowstone.

6/19 — Waterfalls &Wide Angles: meet at Artist Point.

7/10 — Wildflowers &White Balance: meet at Washburn Trailhead in Chittenden parking area.

3 . As a child, I was proud of my southern origin. My own voice reflected my family’s past and present-part northern Mississippi, part Tennessee, all southern. There was no sound I loved more than my grandmother’s accent: thick, sweet, warm.

While growing up, I began to realize outside of our region, southerners were often dismissed as uncultured and ignorant. I was ready to leave behind my tiny town in West Tennessee, starting a new life and jumping at big chances in some far-off cities. In that embarrassing space between “teen” and “adult”, my accent was a symbol of everything I thought I hated about my life in the rural South. I feared it would disqualify me from being a noted magazine writer. I would have to talk less “country”. So I killed a piece of myself. I’m ashamed of it, but I’m more ashamed that I tried to kill that part of someone else-change Emily’s accent.

I met Emily in college. She was determined to work for the student newspaper, which was where I spent most of my waking hours, and we became friends. She, unlike me, accepted her roots. Early in our friendship, her mother asked where I was from, assuming it was somewhere up north. Then I felt my efforts paid off and even wanted to ignore the mistake.

Emily is two years younger and she cared about my opinion. I advised her to be more like me and hide her signature Manchester accent. I stressed that throughout our college years, often by making fun of her vowel (元音) sounds. I told myself I was helping her achieve her dream of working as a reporter. Now, I see that it was actually about justifying my hiding part of myself.

Grandma Carolyn used to tell me, “Girl, don’t forget where you come from.” Now I truly understand that. Many things have faded from memory, but this sticks in my mind with uncomfortable clarity. Now that I am grown and have left the South, it’s important to me.

5 . It was midnight, and I was on my knees, burying head in my hands. I struggled to________the sobs that threatened to wake my two tiny children. The call came just hours ago—I got the job. After five interviews and three presentations, I received a generous ________, one that needed my answer by tomorrow.

To others, the decision was ________—live the dream, with its security. But to me, taking the job would_______ compromise my heart.

Exhausted, I rose to my feet, and made my way upstairs to check on my children, finding each curled up in a________sleep. I heard their breathing, soft and even I became one with the moment. And in that breathtaking silence, I heard a voice:________your heart. The words echoed through my soul.

The decision, indeed, was simple. I would ________ somebody else's dream job and keep my own. I felt a great ________ lift off my shoulders. I pursued my options for working for myself. I started to write and edit, ________pages of scripts. I stretched myself and discovered that I could learn anything if I ________ some time to it.

To be sure, I lost a number of business opportunities. But I was available to ________the simple moments with my children. On sunny days, we'd ________ to the zoo with my backpack of work projects. Each night, when I tucked my kids into bed, my ________ was full. Over time, as my kids grew, my business did, too.

Now I have no regrets. I am ________ for the life that I have, a cherished closeness with my now adult children and a variety of fulfilling, passion-filled work. I'm glad I trusted my inner ________.

6 . Metin Sitti at the Max Planck Institute for Intelligent Systems in Stuttgart, Germany, and his colleagues have developed tiny robots called “microrollers” that can carry cancer drugs and selectively target human breast cancer cells. The team drew inspiration for the design of the robots from white blood cells in the human body, which can move along the walls of blood vessels (血管) against the direction of blood flow.

The microrollers are round and made from glass microparticles. One half of the robot was coated with a thin magnetic nanofilm (磁性纳米膜) made from nickel and gold. The other half was coated with the cancer drug doxorubicin as well as molecules that recognize cancer cells.

The team tested the robots using mouse blood and artificial channels lined with human endothelial cells—the kind of cells that line the inner walls of our blood vessels. The robots were exposed to a mixture of cancerous and healthy tissue. The microrollers selectively attached to the cancer cells and were activated using UV light to release the doxorubicin.

By applying magnetic fields, the team was able to control the movement of the microrollers, both with and against the flow of blood. The microrollers can reach a speed of up to 600 micrometers per second. “If you come to a spot where you need to take the right path and if you miss it, then you could go back and go to the right one,” says Setti.

In future, the researchers want to use other methods to start the drug release, such as heat or near-infrared light. They also plan to try making microrollers out of materials that would break down in the body over a few weeks or months.

The team hopes to test the microrollers in animals soon. “The rollers need to carry enough cancer drugs, which is why we need to have them in large numbers,” says Setti. “But since we can locally take drugs to the right target, we don’t need huge dosages (剂量).”

During the holidays, many young Chinese invite their friends to visit museums and appreciate traditional culture. Some even set up We Chat groups to share popular exhibition information and visit     1    (exhibition) together.

With     2    number of young attendees rising, the museums have been launching     3     (creation) products and services.

Every morning, Nanjing Museum    4    (crowd) with young tourists. They carefully select postcards and line up in a long queue,     5    (wait) to have them stamped with images of cultural relics     6    (collect) at the museum.

Many museums across the country have also launched cultural products such as mystery boxes with an archaeology theme. Some boxes contain a soil sample     7    a cultural relic inside, and collectors can     8    (enthusiastic) dig through it with small tools. Many traditional museums also use digital collectibles(数码藏品)to attract more young people,     9    are made through original designs and sold to consumers online.

For museum cultural relics and exhibitions of museums, digital collectibles not only attract the attention of many youths, but also encourage them to approach cultural relics, understand history and promote the interest in     10    (they) heart in traditional Chinese culture.

Demand on tourism burst as the Minsu market’s recovery sped up during the May Day holiday. Oceans of tourists flooded into Zibo in China’s Shandong Province for its BBQ,     1     drove its Minsu market to boom. According to the online booking site Tujia, Minsu’s average room price remained lower than the national average level, but     2     (it) booking number increased three times in Shandong Province during the May Day vacation.

    3     (base) on Tujia statistics, other cities in Shandong Province also showed remarkable performances on Minsu bookings. Qingdao and Weihai were among China’s top ten tourism destinations.     4     former even surpassed (超过) Chengdu and Chongqing for the first time to take the number one spot.     5     (additional), the booking numbers in Yantai, Jinan, Rizhao and Tai’an of Shandong Province also     6     (see) a good performance.

The Minsu in rural areas still gain     7     (popular), with the booking number     8     (account) for nearly 40% of the total, according to Tujia.

Among customers booking the Minsu in rural areas, the “post-80” and “post-90” generations are still the mainstream. The     9     (hot) types of accommodations are lofts, inns, and single-family villas. Besides, fruit and vegetable picking, DIY activities, and food-tasting events are the top choices     10     holiday activities.