As the world's population grows, farmers will need to produce more and more food. And large farms are increasingly using precision farming to increase yields (产量), reduce waste, and reduce the economic and security risks that inevitably accompany agricultural uncertainty.

    Traditional farming relies on managing entire fields—making decisions related to planting, harvesting, irrigating, and applying pesticides and fertilizer (农药和化肥)—based on regional conditions and historical data. Precision farming, by contrast, combines sensors, robots, GPS, mapping tools and data-analytics software to customize（量身定制）the care that plants receive without increasing labor. Robot-mounted sensors and camera-equipped drones (无人机) wirelessly send images and data on individual plants to a computer, which looks for signs of health and stress. Farmers receive the feedback in real time and then deliver water, pesticide or fertilizer in adjusted doses（剂量）to only the areas that need it. The technology can also help farmers decide when to plant and harvest crops.

    As a result, precision farming can improve time management, reduce water and chemical use, and produce healthier crops and higher yields—all of which benefit farmers' bottom lines and conserve resources while reducing chemical runoff.

    Many small businesses are developing new software, sensors, and other tools for precision farming, as are large companies such as Monsanto, John Deere, Bayer, Dow and DuPont. The U.S. Department of Agriculture, NASA and the National Oceanic and Atmospheric Administration all support precision farming, and many colleges now offer course work on the topic.

    In a related development, seed producers are applying technology to improve plant characteristics. By following individual plants over time and analyzing which ones flourish in different conditions, companies can relate the plants' response to their environments with their genomics (基因组学). That information, in turn, allows the companies to produce seed varieties that will grow well in specific soil and weather conditions. This advanced technology may also help to improve crop nutrition.

    Farmers do not universally welcome precision agriculture for various reasons, such as high equipment costs and lack of access to the Internet. The technology may bring great challenges to experienced farmers who are not good at computers. And large systems will also be beyond the reach of many small farming operations in developing nations. But less expensive, simpler systems could potentially be applied. For others, though, cost savings in the long run may reduce the financial concerns. And however reticent some farmers may be to adopt new technology, the next generation of farmers are likely to warm to the approach.

    The FBI is investigating the disappearance of a visiting Chinese scholar from a central Illinois university town as a kidnapping（绑架）as her whereabouts（下落）have remained unknown since Friday.

    Zhang Yingying, 26, was last seen on June 9 near the north end of the campus of the University of Illinois at Urbana-Champaign（UIUC）, wearing a charcoal-colored baseball cap, a pink and white top, jeans and white tennis shoes and carrying a black backpack. She boarded a Champaign-Urbana Mass Transit District bus and exited the West Springfield and North Mathews avenues at 1:52 pm local time（1852 GMT）, police said.

    The FBI has labeled the case as a kidnapping but isn't ruling out anything, said Campus police spokesman Patrick Wade. The suspect appears to be a white male who was in a car and stopped to talk to Zhang on Friday afternoon, the FBI said. Almost one month into a yearlong appointment at the UIUC campus, Zhang's friends told police that she was heading to an apartment complex in Urbana to sign a lease（租约）.

    Security camera footage（连续镜头）on Monday released by university police showed that Zhang talked to the driver of a black Saturn Astra, about five blocks from where she got off a bus in Urbana on Friday afternoon. She entered the car shortly thereafter. Zhang has not been seen or heard from since then and attempts to contact her by phone remain unsuccessful. Authorities have asked the public to help identify that vehicle.

    A massive search has been launched in Urbana in the US state of Illinois since Zhang's disappearance. Police are interviewing with her colleagues, checking local hospitals and coordinating with ride-hailing（打车）companies as part of their investigative efforts.

    In an interview with Xinhua through Wechat on Thursday, Zhang Ronggao, father of the missing visiting scholar from China's Fujian Province, expressed gratitude to all the people involved in the search and asked US police to accelerate the search.

    We know the mosquito very well. Mosquitoes fly everywhere. They can be found almost all over the world, and there are more than 2,500 kinds of them.

    No one likes the mosquito. But the mosquito may decide that she loves you. She? Yes, she. It's true that male mosquito doesn't bite(咬) and only the female mosquito bites because she needs blood to lay eggs. She is always looking for things or people she wants to bite. If she likes what she finds, she bites. But if she doesn't like your blood, she will turn to someone else for more delicious blood. Next time a mosquito bites you, just remember you are chosen. You're different from the others!

    If the mosquito likes you, she lands on your body without letting you know. She bites you so quickly and quietly that you may not feel anything different. After she bites, you will have an itch(痒) on your body because she puts something from her mouth together with your blood. By the time the itching begins, and she has flown away.

    And then what happens? Well, after her delicious dinner, the mosquito feels tired. She just wants to find a place to have a good rest. There, on a leaf or a wall, she begins to lay eggs, hundreds of eggs.

    The words “protect animals” appear everywhere in books and on screens because some animals are in danger of dying out. But sometimes the reality can be a little different from what people read or watch.

    Florida, US, has held its first bear hunt since 1994. The local government gave people nearly 4,000 permits to kill black bears. And more than 200 were killed on Oct 24.

    Animal protection groups protested this decision. But local officials explained that the black bear population had grown to 3,500 and become a menace to local people. In the past two years, bears have hurt at least four people in Florida.

    This brings an old question back into the spotlight – which is more important, protecting animals or protecting people's interests?

    This question is asked in other countries too. In Switzerland, a wolf was sentenced to death by the Swiss government months ago. This is because the wolf killed 38 sheep and local people lost a lot of money. Days ago in China, three old men were arrested for killing a serow(鬣羚), a protected species. But they insisted they didn't know about this and killed the animal because it ruined their crops.

    However, these stories don't always mean that animal protection stops due to human interests, especially involving economic development. A man named Zhou Weisen set up a wild animal base in Guilin, Guangxi. He saved over 170 tigers and 300 bears. But his base also offered jobs to local people.

    “There may never be a standard answer to the question of whether we should give more attention to the environment or human development,” said Robert May, a British biologist at Oxford University. “But we shouldn't push either one to the side, as the future is hanging in the balance.

    The flowers are blooming and the birds are singing as Melinda sits in the rose garden of the nursing home. She is recalling old times as she waits for her family's arrival. The nursing home has been Melinda's new settlement ever since Thomas passed away a week ago. Thomas had fought a long and hard battle against lung cancer for three years. Unfortunately, he has broken the promise that he and Melinda had made: to be with each other for every birthday. Melinda knew this was unrealistic (不现实的) but agreed to the promise for Thomas's sake.

    "Thomas, you are completely a dreamer." Melinda shouted to Thomas as he dragged on about living on an island with his beautiful wife. That's what she loved about him most—he had a vivid imagination. They got married at age eighteen and began having children right away. Mary came within the year, followed by Thomas Benjamin II, Lilly-Ann, and Joseph “Little Joey” George. The family lived an exultant life filled with laughter and love.

    "Mom!" Lilly shouted, but it really sounded like a howl. Melinda had lost herself in thinking about the life she had shared with her late husband. Lilly pushed her down the long dark halls of the nursing home until they arrived at the recreational room.

When the doors opened, Melinda put her hand over her mouth and was completely speechless. The room was crowded with the people nearest and dearest to her and the warmth and love was felt instantly. The night went on; stories and cocktails were shared and everything was perfect.

    However, when Melinda caught a moment to herself she looked around at her family. With a smile on her face, she raised her Manhattan and called out for a toast. “This one is for you, Thomas, though you are not here.”

    Primary school students in China started using new editions of their textbooks last September, with new illustrations(插图)to go with classic Chinese poems.

    With the 110 classic poems for primary school students from Grade One to Six come one hundred illustrations painted by artist Huang Guoxiang of Wenzhou, Zhejiang province. The old version of Chinese was in use for more than 10 years. "Our aesthetic(美学的)tastes have changed. The illustrations in textbooks should keep up with that," said Huang.

    "An editor from People's Education Press called me last September and asked whether I was interested –to create illustrations for three poems: Ode to Goose, Min Nong and Spring Dawn. I made it. After about 20 days, the publisher called me again and asked me to do all of them," Huang said.

    Huang also said he referred to the Chinese textbooks his son used previously before working on a new painting.

    But he did not just create any ink paintings; Huang changed his style of painting a little bit for his young readers. Primary school students may not necessarily be attracted to traditional Chinese ink painting, as the stokes(笔画)tend to be thick and the colors dark. So he mixed ink painting with watercolor to make the pictures visually appealing to the young readers while fully expressing the meanings of classic poems.

    "It's not that difficult to illustrate a single poem. The hard part is: sometimes there are three poems on one page and the contents of these poems may change greatly, so it was difficult for me to express the feelings of all of them with one illustration. Sometimes I had to think with a bigger picture and create something that fits it all," added Huang.