“Sesame Street” has been called “the longest street in the world”. That is because the television program by that name can now be seen in so many parts of the world. That program became one of American's exports soon after it went on the air in New York in 1969.

    In the United States more than six million children watch the program regularly. The viewers include more than half the nation's pre-school children, from every kind of economic, racial, and geographical group.

    Although some educators object to certain elements in the program, parents praise it highly. Many teachers also consider it a great help, though some teachers find that problems arise when first graders who have learned from “Sesame Street” are in the same class with children who have not watched the program.

    Tests have shown that children from all racial, geographical, and economic backgrounds have benefited from watching it. Those who watch it five times a week learn more than occasional（偶然的）viewers. In the US the program is shown at different hours during the week in order to increase the number of children who can watch it regularly.

    The programs all use songs, stories, jokes, and pictures to give children a basic understanding of numbers, letters and human relationships. But there are some differences. For example, the Spanish program, produced in Mexico City, devotes more time to teaching whole words than to teaching separate letters.

    Why has “Sesame Street” been so much more successful than other children's shows? Many reasons have been suggested. People mention the educational theories（理论）of its creators, the support by the government and private（私人的）businesses, and the skillful use of a variety of TV tricks. Perhaps an equally important reason is that mothers watch it along with their children. This is partly because famous adult stars often appear on it. But the best reason for the success of the program may be that it makes every child watching feel able to learn. The child finds himself learning, and he wants to learn more.

    China is known for its long history, rich culture, and cute pandas. It's also known for some of the worst air quality in the world. But the Asian country is now using a natural weapon against air pollution – trees.

    In February, China's government announced plans to cover at least 32,400 square miles with forest. That is about the size of Ireland. Some 60,000 soldiers will take charge of the tree-planting program. Most of the trees will be planted in Hebei Province. That is an area surrounding China's capital, Beijing.

    Huang Wei is an environmentalist who works for Greenpeace East Asia. She is optimistic about the plan. “Trees act as a sink to absorb carbon dioxide and other pollutants,” she said. Carbon dioxide is a gas that traps the Earth's heat. It contributes to global warming.

    Why is China's air filled with harmful chemicals? It's because the country relies on coal-fired power plants. When coal is burned, PM2.5 is produced, PM2.5 is a pollutant. It can cause shortness of breath, heart attacks, and even death.

    Just two years ago, pollution levels were so high in Beijing that schools and factories had to close. Huang hopes China's tree-planting plan will reduce the nation's suffering from air pollution.

    The Chinese government is getting help from others in its drive to make the nation greener. Stefano Boeri is an Italian architect and urban planner. He is leading an effort to plant vertical（垂直的）forests in China.

    Boeri's designs have already taken root in the city of Nanjing, China. That's where the Nanjing Green Towers are under construction. The building has two towers. Thousands of trees and hanging plants will grow on the balconies and rooftops.

    Boeri says his goal is to design buildings that help the environment and improve air quality. He also hopes to encourage a new generation of green architects.

    Joy Mangano was 33 and divorced. She had three kids under age 7, and was barely keeping up payments on her small two-bedroom home by working extra hours as a waitress. “There were times when I would lie in bed and think, I don't know how I'm going to pay that bill,” Mangano says.

    But he had a special ability for seeing the obvious thing. She knew how hard it was to mop the floor. “I was tired of bending down, putting my hands in dirty water, wringing (拧) out a mop,” Mangano says. “So, There's gotta be a better way.

    How about a “self-wringing” mop? She designed a special tool you could twist in two directions at once, and still keep your hands clean and dry. She set out to sell it, first a few at flea markers.

    Then Mangano met with the media. But would couch potatoes (电视迷）buy a mop? The experts on shopping TV were less than certain. They gave it a try, and it failed. Mangano was sure it would sell if they'd let her do the on-camera display. She said, “Get me on that stage, and I will sell this mop because it's a great item.”

    So QVC, a multinational corporation specializing in televised home shopping, took a chance on her. “ I got onstage and the phones went crazy. We sold every mop in minutes.”

    Today she's president of Ingenious Designs, a multimillion-dollar company, and one of the stars of HSN, the Home Shopping Network. Talking about the household invention, Mangano says, “It is as natural for me as it is for a parent to talk about their child.”

    Last week the British university system offered a record number of places. That sounds like good news—but do we really need more people to go to university? For that matter, does the world need more universities?

    The answer feels like it should be yes.

    Education is good, is it not? But everything has a cost.

    Education takes time. We could insist that everyone study full-time until the age of 45 but that would surely be too much. And perhaps half the population studying until they're 21 is also too much. As for universities, they consume financial and intellectual resources—perhaps those resources might be better spent elsewhere.

    My own personal opinion is strongly in favor both of going to university, and of simply having universities around.

    The main skill I learnt at university was to write about economics, and I use that skill every day of my professional life, even an abstract education seems practical to me. And I now live in Oxford, one of the world's most celebrated (著名的) university cities. Oxford's experience certainly suggests that universities have much to offer.

    The city's architecture and green spaces have been shaped—greatly for the better, on balance —by the 900-year-old institution at its heart. The beauty attracts tourists and locals too.

    But these are samples of one. Many people do not find themselves using the skills and knowledge they accumulated at university. And Oxford's dreaming spires (尖顶) aren't terribly representative of global universities as a whole.

    If you are heading for Paris this year, be sure to include at least one of these shopping malls in your schedule.

    Au Printemps

    Tel: 01133014282

    Located near the Paris Opera, this huge store is well-known for household goods as well as its fashion. The store also offers many services to overseas visitors, including shipping, translation and a personal shopping service. Au Printemps, whose name means springtime, hosts several free fashion shows each week. The store's beauty department has one of the world's largest selections of perfumes（香水）.

    Galeries Lafayette

    Tel: 01133014283

    The Galeries Lafayette was built in 1906. It is as much fun to look at as it is to shop in this 10-storey shopping palace. In fact, the flagship store is the second most visited attraction in Paris, after the Louvre Museum. This shopping palace specializes in women's clothing. Make sure to take in the view from the tea shop on the top floor; it's well worth the visit.

    Le Bon Marche

    Tel: 01133014439

    This stylish Left Bank department store was Paris' first such store. Designed by Gustave Eiffel, Le Bon Marche is particularly known for its food hall, its wedding shops and its selection of modern clothes.

    La Forum des Halles

    Tel: 01133014476

    This modern, underground shopping center was built in 1979. La Forum des Halles, the three-storey-tall shopping center offers everything from souvenirs to haute couture（高级女子时装）to entertainment, such as first-run movies and street performers. The shopping center is attached to the busy La Halle-Chatelet metro station and can be easily reached from all over Paris.

A recent study by UK researchers has shed light on a phenomenon termed "plant blindness," which contributes to the widespread but mistaken belief that plants are perceived as less vibrant or alive compared to animals.

It was not established that plant blindness is an innate trait; instead, the root cause appears to be the significantly diminished interaction with the natural world in societies that have become highly urbanized. The research indicates that a decrease in prior exposure to plants leads to a cycle of inattention.

Urban cultures exhibit a well-documented incidence of plant blindness. Children are often observed to regard plants as less significant than animals, especially during their early years, and they have difficulty recognizing a diverse range of plant species. Both educators and students have reported varying levels of knowledge about plants, with primary school teachers lacking a background in science being particularly affected. In contrast, older individuals tend to possess greater plant knowledge, likely due to their increased participation in outdoor activities.

Thirty-five studies have concluded that the process of urbanization or modernization has had a negative impact on people's understanding of plants. The value of plant gathering has diminished due to an increased reliance on urban services and a cash-based economy. Additionally, the time available for outdoor activities has been curtailed by work and school commitments. These factors have also reduced family time, which in turn has adversely affected the oral transmission of plant knowledge to younger and older family members.

Stagg has suggested that rather than a cognitive impediment to the visual recognition of plants, individuals residing in highly industrialized nations suffer from a lack of attention to plants due to a reduction in relevant exposure.

To disrupt the cycle of plant inattention, Stagg emphasizes the importance of exposing people to diverse ecosystems and demonstrating the direct benefits of plants to humans, as opposed to the indirect benefits derived from their industrial use or advantages to distant, traditional communities. Engaging with edible and practical plants in local settings can be instrumental in this regard. The level of botanical knowledge among younger generations is directly linked to their perception of the usefulness of such knowledge in their lives.