The kids in this village wear dirty clothes. They sleep beside cows and sheep in huts (棚屋) made of sticks and mud. They have no school. Yet they all can sing the English letters, and some can make words.    

    The key to their success: 20 tablet computers (平板电脑) dropped off in their Ethiopian village in February by a U.S. group called One Laptop Per Child.

    The goal is to find out whether kids using today's new technology can teach themselves to read in places where no schools or teachers exist. The Massachusetts Institute of Technology researchers analyzing the project say they're already amazed. “What I think has already happened is that the kids have already learned more than they would have in one year of kindergarten (幼儿园),” said Matt Keller, who runs the Ethiopia program.

The fastest learner—and the first to turn on one of the tablets—is 8-year-old Kelbesa Negusse. The tablet's camera couldn't save memory, yet within weeks Kelbesa had figured out its workings and made the camera work. He called himself a lion, a marker of accomplishment in Ethiopia.

With his tablet, Kelbasa rearranged the letters HSROE into one of the many English animal names he knows. Then he spelled words on his own. “Seven months ago he didn't know any English. That's unbelievable,” said Keller.

The project aims to get kids to a stage called “deep reading,” where they can read to learn. It won't be in Amharic, Ethiopia's first language, but in English, which is widely seen as the ticket to higher paying jobs.

C

    This month, Germany's transport minister, Alexander Dobrindt, proposed the first set of rules for autonomous vehicles(自主驾驶车辆). They would define the driver's role in such cars and govern how such cars perform in crashes where lives might be lost.

    The proposal attempts to deal with what some call the “death valley” of autonomous vehicles: the grey area between semi-autonomous and fully driverless cars that could delay the driverless future.

    Dobrindt wants three things: that a car always chooses property(财产) damage over personal injury; that it never distinguishes between humans based on age or race; and that if a human removes his or her hands from the driving wheel — to check email, say — the car's maker is responsible if there is a crash.

    “The change to the road traffic law will permit fully automatic driving,” says Dobrindt. It will put fully driverless cars on an equal legal footing to human drivers, he says.

    Who is responsible for the operation of such vehicles is not clear among car makers, consumers and lawyers. “The liability(法律责任) issue is the biggest one of them all,” says Natasha Merat at the University of Leeds, UK.

    An assumption behind UK insurance for driverless cars, introduced earlier this year, insists that a human “ be watchful and monitoring the road” at every moment.

    But that is not what many people have in mind when thinking of driverless cars. “When you say ‘driverless cars', people expect driverless cars.”Merat says. “You know — no driver.”

    Because of the confusion, Merat thinks some car makers will wait until vehicles can be fully automated without operation.

    Driverless cars may end up being a form of public transport rather than vehicles you own, says Ryan Calo at Stanford University, California. That is happening in the UK and Singapore, where government-provided driverless vehicles are being launched.

    That would go down poorly in the US, however. “The idea that the government would take over driverless cars and treat them as a public good would get absolutely nowhere here,” says Calo.

    Queensland is one of the most amazing states in Australia. It has some of the most beautiful natural scenery on the planet, with the Great Barrier Reef, rainforests and impressive beaches.

The Great Barrier Reef

    It is one of the world's largest natural features. It stretches more that 2,300 km along the north eastern coast of Australia from the northern tip of Queensland to just north of Bundaberg. The things that most surprise visitors to the reef are the colors.

Without doubt, the best way to see the Great Barrier Reef is by diving. If you have a little extra money and you are feeling a bit lazy, you can fly over the reef in a plane.

Fraser Island

    Another area of natural beauty is Fraser Island. This is the world's largest sand island. It's best visited from Hervey Bay on the mainland, where there are a number of places offering trips around the island. To fully appreciate Fraser Island you should go for three or four days. Attractions include some beautiful fresh-water lakes, particularly Lake Wabby and Lake Mckenzie. You can walk around these on white sands untouched by human footprints. Indian Head also has some beautiful views. Braver travelers can go and watch sharks circling the water hundreds of meters below.

The Whitsunday Islands

    It would be a pity to travel around Queensland without taking a trip around the Whitsunday Islands. They were named by Captain Cook in 1770, after the day on which he arrived. Here are some of the great things you can do there.

●Cruise around them on a relaxing trip.

●Take a sailing course.

●Look at the aboriginal (土著的) paintings in caves on Hook Island.

●Have fun in the water doing lots of water sports.

    So, will you be going to Queensland?

    The 2019 Beijing Horticultural Expo, the largest of its kind, has chosen the theme "Live Green, Live Better". The expo, opened on April 29 in Yanqing District of Beijing, is scheduled to last for 162 days until October 7.

    Tickets available

    *Standard day ticket

    *Designated day ticket

    *Discounted ticket

    *Group ticket

    Designated days

    *Labor Day holiday (May 1-4)

    *Dragon Boat Festival holiday (June 7-9)

    *Mid-Autumn Festival holiday (Sept 13-15)

    *National Day holiday (Oct 1-7)

    Tickets prices

    *Standard day ticket: 120 yuan

    *Ordinary designated day ticket: 160 yuan

    *Discounted standard day ticket: 80 yuan

    *Discounted designated day ticket: 120 yuan

    Tickets are free for children under the age of six or shorter than 130 centimeters. Discounted tickets are available for those with disabilities, seniors (people aged at 60 or above), children, students and PLA soldiers.

    Where to buy

    Visitors can buy or book tickets from two online agents, seven travel agencies, or three event channels—the event WeChat account, the event app or Onsite ticket kiosks.

Opening hours

Requirements

    Buying tickets for Expo 2019 Beijing requires real-name registration, and all visitors are required to input information from their ID cards (or valid passports, mainland travel permits for Hong Kong and Macao residents, and mainland travel permits for Taiwan residents) to buy or book tickets online.

Max Mathews has been called the father of computer music.He created electronic tools so that people could use computers as musical instruments.He had a great influence on the development of electronic music and how it is written,recorded and played.

In 1957,Mathews wrote the first computer program that enabled a computer to create sound.At that time,he was working as an engineer at Bell Laboratories in New Jersey.His computer program enabled a large IBM computer to play a 17 seconds piece of music that he had written.The computer was so slow that it would have taken an hour to play the piece of music in 17 seconds.For that reason,Mathews moved the work to a tape player,which could be sped up to play the music at a normal speed.He later said that the sound quality of the musical notes was not great,but the technical importance of the music was huge.

Mathews continued creating other versions of the music program.He became interested in how computers could help musicians outside recording studios.The Groove program he developed was the first computer program made for live performances.

He also developed an electronic device he called the Radio Baton.The device looks like two drum sticks.It enables the user to control the speed and sound levels of orchestral music playing on a computer.The user does this by moving the two sticks on a special electronic surface.

Mathews believed modern musicians are not making full use of the power of computer music.He said a violin always sounds like a violin.But with a computer,the way a violin sounds is unlimited.He said he didn't want computer sounds to replace live music.But he said he hoped laptop computers would one day be considered serious instruments.

SPECIAL ENGLISH

The English language programs of the Voice of America（VOA）can be divided into two types according to the speed of broadcasting: Standard English and Special English.

Special English is a simple and standardized English radio program arranged by VOA for listeners who are beginning to learn English in non-English speaking countries around the world. It officially began broadcasting in October 1959.

The famous American lexicologist S. B. Flexmer identified three criteria for Special English, that is, what makes it "special":

●It writes and broadcasts in short and clear sentences;

●It broadcasts at a rate of 90 words per minute, or 2/3 of Standard English;

●It is a form of American English composed mainly of the 1500 basic words.

Special English programs can be divided into two categories: news programs and feature programs.

News program

VOA Special English news broadcasts provide listeners with worldwide information on politics, economics, military affairs, diplomacy, international relations, religion, weather, and all kinds of important events and wonders. They are broadcast to Southeast Asia five times a day, twice in the morning and three times in the evening.

Feature Program

From the perspective of time, Special English feature programs can be divided into two categories: one is every five minutes, and the other is every fifteen minutes. The latter consists of seven different sub-features, which are repeated four times a day on a weekly cycle, but the two features on Sunday and Saturday are broadcast only three times a night, each lasting about 10 minutes, followed by each five-minute feature.