B

    Dr Wiseman started “the laugh lab” project in September 2001. It is the largest study of humour. Participants（This is a subject that has long attracted psychologists and philosophers. Most of the time, people are not completely honest. We do things that society expects us to and say things that help us get what we want. But laughing cannot be controlled. When we laugh, we tell the truth about ourselves. By December 2001 over 10, 000 jokes had been submitted. This gave the scientists enough evidence to make early conclusions. It seems that men and women do have different senses of humour, for instance.

    Dr. Wiseman. “Males use humour to appear superior to others, while women are more skilled in languages and prefer word play. ”

    Researchers also found that there really is such a thing as a national sense of humour. The British enjoy what is usually called “toilet humour”. But the French like their jokes short and sharp: “You're a high priced lawyer. Will you answer two questions for $500?” “Yes. What's the second question?”

    The Germans are famous for not having a sense of humour. But the survey found that German participants were more likely to find submitted jokes funny than any other nationality.

     Perhaps that proves the point. Is this joke funny? I don't know, but let's say yes, just to be safe. Dr Wiseman and his workmates also submitted jokes created by computer. But none of those who took part in the survey found any of them amusing. Perhaps this is relief. Computers already seem like they can do everything. At least they should leave the funny stuff to us.

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    Kyle is my big brother. For eighteen years, I felt that Kyle was my enemy. In fact, I found it ridiculous that people thought older brothers looked out for their sisters, protected them and fought off their sisters，bullies. Huh? My brother was the bully (恃强凌弱者).
    When we were little, his fights with others caused my only black eye, cuts in my lips and even a nosebleed or two. I often wished I were an only child!

    Time flew. We ended up attending colleges two thousand miles apart, yet strangely, that's when we began communicating. Through e-mail, we kept in constant touch. Mostly I complained about serious homesickness, impossible roommates difficult classes, and... dating. I felt I lost myself. At a particularly low time, I cried to Kyle about my injured confidence, my broken heart, and the particular jerk (蠢人) who broke it.

    And that's when the package arrived.

    “What's this?” I thought as I tore into it. The box revealed a sweatshirt. “Phi Delta Theta? Thai's Kyle's frat (兄弟会).” Kyle was the president of the frat house. Why would he send this? I put it aside and dug deeper. A pile of letters. And they were all addressed to me. I opened the one on top.

    “Katrina,” it said, “your brother showed me your picture and I think you're awesome and beautiful.” I rolled my eyes. “Yeah, sure.” I opened another letter. And another. Eighteen in all.

    Each one was from a different guy. They complimented (恭维) me. They invited me on dates. And they tried to convince me to make a trip out to Knox College and meet them.

    I loved it. I didn't care about the motive. And mostly, I loved the idea that my big brother had pulled it off. I picked up the phone.

    “Kyle, the box came and I can't believe what you did.” But Kyle wasn't accepting compliments. “Oh”, he said，“I was just tired of reading your complaints.”

    Big brothers, I decided, really did protect their sisters. And mine fought off the biggest bully I'd ever met. Now I return to my true self，full of confidence.

    During the period from 1660 through 1800, Great Britain became the world's leader. Language itself became submitted to rules during this period. This need to fix the English language is best illustrated (描述) in the making of The Dictionary of the English Language by Samuel Johnson. Guides to the English language had been in existence before Johnson began his project in 1746. These, however, were often little more than lists of hard words. When definitions of common words were supplied, they were often unhelpful. For example, a "horse" was defined in an early dictionary as "a beast well known".

    Johnson changed all that, but the task was not an easy one. Renting a house at 17 Gough Square, Johnson began working in the worst of conditions. Supported only by his publisher, Johnson worked on the Dictionary with five assistants. Compared to the French Academy's dictionary, which took forty workers fifty-five years to complete (1639-1694), Johnson's dictionary was completed by very few people very quickly.

Balanced on a chair with only three legs, Johnson sat against a wall in a room filled with books. Johnson would read widely from these books, mark passages illustrating the use of a particular word, and give the books to his assistants so that they could copy the passages on slips of paper. These slips were then stuck to eighty large notebooks under the key words that Johnson had selected. Fixing the word by this method, Johnson could record a word，s usage and its definition.

    How many passages were used? According to Johnson's modern biographer Walter Jackson Bate, the original total number could have been over 240,000. How many words were defined by the lexicographer? Over 40,000 words appeared in two large books in April of 1755. Did Johnson fully understand the huge task he was undertaking when he began? As he told his contemporary biographer James Boswell, "I knew very well what I was undertaking and very well how to do it — and have done it very well."

    Compared with solar and wind energy, which are booming, tidal (潮汐的) power is a loser in the clean - energy competition. But if you did want to build a tidal power station, there are few better sites than the mouth of the River Severn, in Britain. Its tidal range, the difference in depth between high and low tides, of around 15 metres is among the largest in the world.

    Engineers and governments have been toying with the idea since at least 1925. But none of the suggested projects has materialised. Price is one objection. A study thought that tidal energy might cost between ￡216 and ￡368 ($306 - 521) per MWh of electricity by 2025, compared with ￡58 - 75 for seagoing wind turbines (轮机) and ￡55 - 76 for solar panels. Environmentalists also worry that any plant would change the tides, making life harder for wildlife.

    An engineer called Rod Rainey thinks he has a way around both problems. He plans to replace the conventional turbines of previous plans with a much older technology. Specifically, he plans to span (横跨) the river mouth with a line of water wheels. This is a design that dates back to the early days of the Industrial Revolution. Examples can be found fixed to the sides of old watermills (水磨).

    But there would be nothing old - fashioned about Mr Rainey's wheels. Thirty metres high and sixty wide, they would be made from ordinary steel. Two hundred and fifty of them, along with the supporting structures, would be floated into place and secured to the seabed, creating a line 15km long. Together, they could supply power at an avenge ate of 4GW. That is about as much as two biggish nuclear power stations would manage. Substituting one of the wheels with a set of locks would provide a shipping channel about twice the width of Panama Canal, permitting upstream ports such as Avonmouth and Cardiff to continue operating.

A boy who has been climbing the equivalent（等量）of Mount Qomolangma in aid of a children's hospice（救济院）is about to reach his fundraising goal of £29,031. Six-year-old Oscar, from Lancaster, has climbed 10 of the UK's highest mountains to help Chorley's Derian House. He said he needed two more to match Mount Qomolangma's 29,031 feet height.

Oscar started his challenge on October 9, 2022, and Ingleborough in the Yorkshire Dales was the first mountain to be chosen. He said that the hardest climb so far had been Cairn Gorm in the Scottish Highlands because the snow was so deep.

Oscar took on the challenge in the hope of raising enough money to send 29 children with life-limiting illnesses on holiday. "I wanted to be the youngest person to climb Mount Qomolangma and I have climbed 10 out of 12 mountains. When I get older, I want to climb the real Mount Qomolangma," Oscar said.

"It was amazing what a child's dream can achieve. We're speechless and couldn't be prouder. We were grateful to everyone that supported us along Oscar's journey," Oscar's father Matt wrote on the social media.

Oscar and his family hoped to make their final climb on Ben Nevis in Scotland on May 29, 2023. The climb would mark not only the completion of Oscar's challenge, but also the 70th anniversary of the first successful ascent（攀登）of Mount Qomolangma by Edmund Hillary and Tenzing Norgay.

"For every foot he climbed, our children would get a pound to achieve their dreams. The total £29,031 raised by Oscar would help support the work of the hospice, which provides end-of-life care to more than 400 children across the northwest of England," said Karen Edwards, a senior official of Derian House.

"The six-year-old was an unbelievable little boy who had truly gone to great heights. How many six-year-olds could say that they have climbed the height of Mount Qomolangma?" Karen added.