Today's post is almost about signs in English. You will see signs on the road while driving or when walking down a street. Now let's take a closer look at the signs in the picture below, so you can fully understand what they mean in case you come across one of them.

    Starting with the top row, we have a:

    Yield sign—This sign indicates (标示) that you need to slow down ,but you may not have to come to a full stop.

    Crosswalk—This is a sign that indicates people have the right of way to cross the street, so cars have to stop when they see a person waiting next to one of these signs.

    Second row:

    Do not enter—This sign indicates you are not allowed to enter a road at that point.

    Buckle up(系好安全带)!— There are often signs on roads in the United States reminding people that wearing seat belts(安全带) is mandatory (强制的) (seat belt laws differ depending on what state you are in ,but all US states have seat belt laws).

    Third row:

    Be alert (警惕的) for bears—This is another sign that is used to indicate to drivers and pedestrians (行人) that they should be alert for wildlife in the area.

Playground—This is the sign used to alert drivers that there is a playground nearby, so it is a good idea to slow down and watch for children.

    From self-driving cars to carebots for elderly people, rapid development in technology has long represented a possible threat to many jobs normally performed by people. But experts now believe that almost 50 percent of occupations existing today will be completely unnecessary by 2025 as artificial intelligence continues to change businesses.

    "The next fifteen years will see a revolution in how we work, and a revolution will necessarily take place in how we plan and think about workplaces," said Peter Andrew, Director of Workplace Strategy for CBRE Asia Pacific.

    A growing number of jobs in the future will require creative intelligence, social skills and the ability to use artificial intelligence.

    The report is based on interviews with 200 experts, business leaders and young people from Asia Pacific, Europe and North America. It shows that in the US technology already destroys more jobs than it creates.

    But the report states: "Losing occupations does not necessarily mean losing jobs — just changing what people do." Growth in new jobs could occur as much, according to the research.

    "The growth of 20 to 40 person companies that have the speed and technological know-how will directly challenge big companies," it states.

    A 2014 report by Pew Research found 52 percent of experts in artificial intelligence and robotics were optimistic about the future and believed there would still be enough jobs in the next few years. The optimists pictured "a future in which robots do not take the place of more jobs than they create," according to Aaron Smith, the report's co-author.

    "Technology will continue to affect jobs, but more jobs seem likely to be created. Although there have always been unemployed people, when we reached a few billion people there were billions of jobs. There is no shortage of things that need to be done and that will not change," Microsoft's Jonathan Grudin told researchers.

    Flying for a long time, you finally arrive at the place where you can relax—your hotel room. Now you throwyour bag on the bed, turn on the TV and watch an international news programme on a satellite channel probably from UK or the USA.

    The main international broadcasters are BBC World and CNN. With an audience of over 1.5 billion people, these are popular channels that offer good-quality news programmes. In both companies, the journalists are experienced writers that produce journalism of a high standard.

    However, there are alternative news channels which people watch because they want a less traditional or non-Western view on world events. Russia Today and Al Jazeera International, an Arabic company, are international channels that broadcast in English. Both companies say they give a fresh view on big stories, and their experienced journalists often report from places where Western journalists do not work, and so they give us stories that we don't normally see.

    The Internet offers more variety. OneWorldTV is an Internet site where you can find stories about the developing world and human rights, rather than the usual stories about US politics and business. The writers for this company are often local people who write the stories for free. This non-professional journalism is increasing, and it certainly offers more choices.

    This increase in citizen journalism means that you can write the news, too. Main news broadcasters often use photographs and stories that members of the general public send to them, especially when there is a dramatic breaking news story. Besides this, some blogs are popular sources of news, and the website NowPublic lets you write stories using information you can get from anywhere, including sites like Youtube, Flickr and Twitter.

    Nottingham Goose (鹅) Fair started on the first Thursday in October and lasted 3 days. However, nowadays you won't find any geese there.

    The fair opened at 12: 00 on the Thursday by the Lord Mayor of Nottingham, but it has an interesting and shocking history.

    For starters, it wasn't always the largest fair in the area. And the main fair for the people of Nottingham in terms of trade and economy was the Lenton Fair held at Lenton Priory.

    In the Middle Ages the Lenton Fair overshadowed (使显得逊色) the Goose Fair in size and importance. Harrisons Calendar of Fairs for 1587 mentions the Lenton Fair but not the Goose Fair. However the Goose Fair competed with its local competitors and every year over 20, 000 geese from the Fens in Lincolnshire arrived to be sold to provide the traditional Michaelmas dish.

    It wasn't just for geese either. All kinds of things were sold at the Goose Fair: sheep, horses and cattle were also sold.

    The fair has been under threat of closure many times over the years. In 1764, they actually had cheese riots (暴乱) due to an increase of a third on the price of cheese compared with the previous year, which resulted in an attack on the stallholders (摊主) at the fair.

    By 1880 the fair was reduced to a three-day event, which started on the first Thursday of October. In 1928, the fair was moved from the market square to its present site in the forest which is far away from the city centre. Despite attempts throughout its history to prevent the fair, the income from rents paid by the stallholders is financially beneficial to the local government. So regardless of the cheese riots and the various attempts to prohibit it, Nottingham Goose Fair has survived to celebrate over eight centuries of fun.

Tests have shown robots can diagnose heart problems in as little as four seconds, as a review of artificial intelligence (AI) finds machines are now as good at spotting illness as doctors.

Analyzing a patient's heart function on a cardiac MRI (心脏磁共振成像) scan currently takes doctors around 13 minutes. But a new trial by University College London (UCL) showed an AI program could read the scans in less time with equal accuracy. There are approximately 150,000 such scans performed in the UK each year, and researchers estimate that fully using AI to read them could save 54 clinician-days (临床天数) at each cardiac centre per year. So it can make up for the shortage of doctors.

It is hoped that AI where computer systems are able to learn from data to identify new patterns with minimal human intervention will transform medicine by helping doctors spot diseases such as heart disease and cancer faster and earlier. However, most scans are still read by specially trained doctors.

Dr Charlotte Manisty, who led the UCL research, said, "Cardiovascular MRI offers in- comparable image quality for assessing heart structure and function. However, current manual analysis remains basic and outdated. Automated machine techniques offer the potential to change this and completely improve efficiency and accuracy, and we look forward to further research that could confirm the superiority to human analysis."

She added, "Our dataset of patients with a range of heart disease who received scans enabled us to demonstrate that the greatest sources of measurement errors arise from human factors. This indicates that automated techniques are at least as good as humans, with the potential soon to be 'super-human'—transforming clinical and research measurement precision."

Professor Alastair Denniston said, "Within those handful of high-quality studies, we found that by deep learning AI could indeed detect disease ranging from cancer to eye disease as accurately as health professionals. But it's important to note that it did not absolutely exceed human professional diagnosis. "

Known as the fastest Chinese man, Su Bingtian made history. Now, Su's feat was on a par with the 12 fastest human sprinters of all time and he is really a flying man of China, of Asia.

On August 1st of 2021, Su set a new record of 9. 83 seconds in the Tokyo Olympics Men's 100 m semifinals (半决赛). He was the first Chinese runner to enter the final in the event and brought an unforgettable moment for the world in the summer of that year.

For a long time, it was believed that Asian people couldn't get great achievements in such kinds of competitions. For decades, it has been impossible for Asian athletes to break the 10-second barrier in the 100m race. But as Su progressed steadily (稳定地) in international competitions, this idea came under fire. After May 30th, 2015, the day Su became the first Chinese man to break the 10-second barrier for the 100 m, running exactly 9.99, he has become a legend who kept breaking Chinese records or even Asian records since then.

He became well known and many people wanted to be as famous as him, but the way to success was never easy for Su. Once he was badly hurt in a training course. Su had to stop running. after the accident. He even planned to give up running in 2017. But the spirit to do something for our country brought Su back to the running team. He realized that finishing the semifinal in less than 10 seconds would win the chance to enter the final competition. It was difficult to get the goal.

Su trained much harder than before to improve the speed. To encourage himself, he set a personal goal-9. 89 seconds. He even made the number as his personal password (密码) for his phone and computer. Finally he succeeded! His spirit encourages many people to try to achieve their dreams.