阅读理解

    A group of cultural calendars, with creative designs, informative content and delicate printing, were hot sellers last year and now posting photos of the calendars has become a new fad on social networks. Many people posted photos of their cultural calendars with their comments to arouse memories of traditional knowledge. Though the cultural calendars are a return to traditions, designers are racking their brains to make the calendars appear more attractive.

    As a child, Alain Robert was afraid of heights. When he was 12, he returned home from school. At the front door of his building, he looked for his keys. he didn't have them. It was 3:30 and his parents worked until 6:00 pm. Alain looked at his apartment on the eighth floor. He saw an open window. He closed his eyes and imagined himself climbing the building. When he opened his eyes, he told himself ,"I can do it." Fifteen minutes later, he was in his house and his fear of heights was gone.

    Today, Alain still climbs buildings. In 2003 , he climbed a building in London dressed as Spiderman(蜘蛛人) to advertise the movie. In 2004, he climbed Taipei 101 (one of the tallest buildings in the world). To reach the top of a building, Alain uses only his hands and special shoes. He has no rope or other safety tools.

    Alain climbs as a hobby. He also does it to make money for charity. When he climbs, he wants to send a message to people. If you have a dream—something you really want to do—it can become real. But you must be brave and keep trying. If something bad happens, don't give up. Close your eyes and tell yourself, "I can do it."

    New mercury(汞) threat to oceans from climate change

    Rising temperatures could boost mercury levels in fish by up to seven times the current rates, said Swedish researchers in an article published in Science Journal. They've discovered warming increases levels of the toxin (毒素) in sea creatures. In experiments, they found that extra rainfall drives up the amount of organic material flowing into the seas. This alters the food chain, adding another layer of complex organisms which boosts the concentrations of mercury up the line.

    Mercury is one of the world's most toxic metals, and according to the World Health Organization, is one of the top ten threats to public health. The substance at high levels has been linked to damage to the nervous system, paralysis and mental impairment in children.

    The most common form of exposure to mercury is by eating fish containing methylmercury(甲基水银), an organic form of the chemical which forms when bacteria react with mercury in water, soil or plants. Levels of mercury in the world's ecosystems have increased by between 200% and 500%, since the industrial revolution say experts, driven up by the use of fossil fuels such as coal.

    In recent years there have been concentrated efforts to limit the amount of mercury entering the environment, with an international treaty, called the Minamata Convention, signed by 136 countries in place since 2013.

Researchers hope that the Minamata treaty will be successful and countries reduce the amount of mercury that is being produced. Otherwise this discovery of a previously unknown source could have impacts for human health.

    Other researchers in the field say that the new study highlights important issues that have previously been little known.

     “This work experimentally proves that climate change will have a significant effect of methylmercury budgets in coastal waters and its accumulation in fish,” said Milena Horvat from the Jozef Stefan Institute in Slovenia.

     “This work will also help us understand the formation of mercury in fish and help reduce mercury from emission sources (primarily industrial).”

    Al was a skilled artist. One night, his older son developed a serious stomachache. Neither Al nor his wife took the condition seriously. But it was actually acute appendicitis (急性阑尾炎), and the boy died suddenly that night.

    Knowing the death could have been prevented if he had realized the seriousness of the situation, Al's emotional health became worse. Worse still, his wife left him a short time later, leaving him alone with his six-year-old younger son. The hurt and pain of the two situations were more than Al could handle, and he turned to alcohol (酒) to avoid the pain. Gradually Al became an alcoholic (酒鬼) and began to lose everything he had. Finally, Al died alone in a San Francisco motel room.

    When I heard of Al's death, I felt sorry for him. “What a complete failure!” I thought. “What a totally wasted life!”

    As time went by, I began to rethink my earlier judgment. I knew Al's son, Ernie, one of the kindest and most caring men I have ever known. I watched Ernie with his children and saw the free flow of love between them. I knew that kindness and caring had long come from somewhere.

    One day I worked up my courage to ask him. “I'm really puzzled by something,” I said. “I know your father was basically the only one to raise you. What did he do so that you became such a special person?”

    Ernie sat quietly and thought for a few moments. Then he said, “From my earliest memories as a child until I left home at 18, Al came into my room every night, gave me a kiss and said, 'I love you, son.'”

    What a fool I had been to judge Al as a failure. He had not left any material possessions (财产) behind. But he had been a kind loving father, and he left behind one of the finest, most giving men I have ever known.

    Visit Nashville, Tennessee, the capital of country music and the home of the Grand Ole Opry. Forty -day bus tour starts from Pittsburgh.

    Departures August 23, September 13, September 27, October 11, October 25.

$185 per person based on double occupancy. Includes private motor coach from Pittsburgh, hotel rooms, reserved tickets for the Grand Ole Opry. Country Festival Friday and Saturday nights, sightseeing tour of Nashville, admissions to places of interest.

    For information, free booklets, and reservations, call 4212 — 6060. Travel and Tours, 2245 Market Street, Pittsburgh, Pennsylvania 15219. 14-day advanced booking required. Visa and Master Card payment welcome.

    Golden Gate Bridge

    Located in San Francisco, the Golden Gate Bridge started in the year 1933 to connect the San Francisco Peninsula with Marin County. It was finally thrown open to public traffic in 1937. It cost $25.7 million in the construction. Till the year 1957, the Golden Gate Bridge, at a length of 2,737 meters, was the longest suspension bridge in the world.

    Brooklyn Bridge

    The Brooklyn Bridge is located in Brooklyn. It is one of the oldest suspension bridges in the United States, having been opened in the year 1883. The length of the bridge is 1,843 meters. The bridge has been featured in several Hollywood movies.

    George Washington Bridge

    Also known as the Hudson River Bridge and the Columbus Bridge, the George Washington Bridge which connects Fort Lee to Manhattan came into use in 1931 after a construction period of almost 4 years. It is a two level suspension bridge that cost about $52 million to build.

    Mackinac Bridge

    This is the third biggest suspension bridge in the world at a length of 8,038 meters. The architect of this bridge was Dr. David B. Steinman, who directed the construction of the bridge which started in the year 1954 and opened to the public in 1958. People using this bridge are charged a certain amount of money.

Navajo Bridge

    Located in Arizona, this bridge crosses the Colorado River and is almost 250 meters long. The construction of this bridge started in the year 1927, ending two years later, costing $390,000. In the 1990s, a second bridge was built which was opened to the public in 1994. The first bridge is now used only by pedestrians.