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    Jeanne Calment, a French woman, became a record breaker on 17 October, 1995, when at the age of 120 years and 238 days, she became the longest-lived human being on record. A Japanese man died in 1986 at the age of 120 years and 237 days.

    Jeanne Calment lives in a small old people's home in the south of France; her husband, her only child and her grandson have all died. She is nearly blind and deaf and is always in a wheelchair, but her doctor describes her as being more like a 90-year-old woman in good health than someone of 120. She still has a lively sense of humor. When asked on her 120^th birthday what she expected of the future, she replied: A very short one. She also remarked that she thought the good Lord had forgotten all about her.

         So what is the key to a long life? According to some doctors, diet, exercise and no smoking are the three important factors. Jeanne Calment has followed two of the tips. She has always eaten a healthy diet, and she used to do exercise every day until she broke her leg at the age of 115. However, until recently she drank two glasses of strong red wine a day, and she does smoke (now only a little). Besides, Jeanne Calment might have got very good genes from her parents. Her father lived to the age of 94 and her mother to 86.

    A local lawyer bought her house when she was 80 under an agreement that he would pay her some money every year until her death. It must have seemed a good move at the time, but so far the lawyer has paid her at least three times the value of the house. Every year on her birthday, Jeanne Calment sends him a card saying: Sorry, I'm still alive!

    Dry Ice is a unique substance which has many uses. Essentially, dry ice is frozen CO2. The first report of what we now call dry ice came from the French chemist Charles Thilorier in 1834. In 1924, the Drylee Corporation of America named the solid form of CO2 as "Dry Ice", which is what it is popularly called today.

    At normal atmospheric pressure, CO2changes directly from solid to gas. It skips the liquid phase（阶段）which makes regular ice wet. Frozen CO2is also much colder than regular ice. But regular ice freezes at 32 degrees Fahrenheit, CO2 changes from gas to solid at -109.3 degrees Fahrenheit. This extremely cold temperature makes it very dangerous to handle with bare hands. It can cause frostbite in a very short period of time.

    Dry ice has been used for a variety of purposes throughout the past century. Its primary use is to refrigerate food when electrical refrigeration isn't available. Through the process of sublimation (when CO2 changes from solid to gas), it can maintain cold food for a long time.

    If you've ever been to a play and seen heavy fog on the ground, it is likely that you have seen dry ice in action. This effect can be achieved because CO2 is heavier than air, so evaporated （挥发的）CO2 will sink and accumulate on the ground.

    Another interesting use for this substance is to bait（诱杀）insects like mosquitoes. These insects have sensors which guide them to CO2. They find the high concentration of CO2 in dry ice quite attractive.

    Mars has long been a mystery for human beings. We have been looking for evidence of life on Mars. In the 1960s scientists guessed that the polar ice cap of Mars was made of frozen CO2. More recent observations have shown that while the topmost layer consists of frozen CO2, the most of it is probably regular frozen water.

    Maybe ten-year-old Elizabeth put it best when she said to her father. “But, Dad, you can't be healthy if you're dead.”

    Dad, in a hurry to get home before dark so he could go for a run, had forgotten to wear his safety belt — a mistake 11.5% of the US population make every day, according to a survey in 2015.

    The percentage doesn't seem so bad, but the big question is why still so many people ignore it when every day there are reports about car accidents and casualties (a death toll of 37461 in 2016).

    There have been many myths about safety belts ever since their first appearance in cars some forty years ago. The following are three of the most common.

    Myth Number One: It's best to be “thrown clear”of a serious accident.

    Truth: Sorry, but any accident serious enough to “throw you clear”is also going to be serious enough to give you a very bad landing. And chances are you'll have traveled through a windshield (挡风玻璃) or door to do it. Studies show that chances of dying after a car accident are twenty-five times greater in cases where people are “thrown clear.”

    Myth Number Two: Safety belts “trap” people in cars that are burning or sinking in water.

    Truth: Sorry again. but studies show that people knocked unconscious (昏迷) due to not wearing safety belts have a greater chance of dying in these accidents People wearing safety belts are usually protected to the point of having a clear head to free themselves from such dangerous situations, not to be trapped in them.

    Myth Number Three: Safety belts aren't needed at speeds of less than 30 miles an hour (mph).

    Truth: When two cars traveling at 30 mpb hit each other, an unbelted driver would meet the windshield with a force equal to diving headfirst into the ground from a height of 10 meters.

    Since 1904, Ravinia Festival has been Chicago's “sound of summer”, a place where you can meet up with your friends, have a wonderful time and hear some of the greatest music in the world. We've got stars on the stage and stars in the sky, and it's all within your reach. But there's more to Ravinia than merely the world's greatest music. For as many people who walk through Ravinia's gate each summer, there are just as many ways to enjoy what we call “The Ravinia Experience”. For some, it all starts with a picnic picked up along the way, greeting your friends at your favorite spot on the lawn.

    Ravinia Dining

    Whether you want to add a bottle of wine and some cheese to your picnic on the lawn or sit down to a meal, Ravinia has a wide variety of choices and we welcome you to explore them all.

    Ravinia gifts

    There are two locations for your shopping convenience! Visit our Main Store in the Dining Pavilion. There you will find different CDs, jewelry, games and more. Or fill your more immediate needs at the shop located behind the Martin Theatre.

    How to Buy Tickets Online

    Tickets for the 2018 season begin to go on sale online on Tuesday April 25. Ravinia Festival's online ticketing makes ordering tickets for your favorite performances easier than ever before. It is available 24 hours a day at www.ravinia.org.

    Click on the date of your choice to select an event, select your seats and add it to your ticket order. Once you have selected all the events you wish to attend, simply enter your payment information and submit your order.

    By Phone

    Phone sales for the 2018 season start on Monday May 22.

    Order tickets by phone by calling 847-266-5100.

    Monday- Friday: 10: 00 am-5: 00 pm

    Saturday/Sunday: Closed

    Do you often dream at night? How do you feel when you dream? Is it useful to our health? “Dreams may be more important than sleep, and we all need to dream,” some scientists say.

    Dreams take up about one quarter of our sleeping time. People have several dreams each night. Dreams are like short films. They are usually in colour. Some dreams are like old films. They come to us over and over again. That may be because the dreamer is worrying about something. Dreaming may be a way of trying to find an answer. Some people get new ideas about their work from dreams. They may have been thinking about their work all day. These thoughts can carry over into dreams.

    Sometimes we wake up with a good feeling from a dream. But often we can't remember the dream. Dreams can disappear quickly from memory.

    Too much dreaming can be harmful. The more we sleep, the longer we dream. The mind is at work when we dream. That is why we may have a long sleep and still wake up tired.

According to one legend, dumplings first appeared during the Han Dynasty. {#blank#}1{#/blank#} （rough） 1800 years ago, the story goes, a physician named Zhang Zhongjing returned to his hometown during a cold winter. He found his fellow villagers with frostbitten {#blank#}2{#/blank#} （ear） and created a new dish to help them warm up. Mutton, herbs, and spices were {#blank#}3{#/blank#} he chose as the ingredients. The doctor {#blank#}4{#/blank#} （wrap）them in pieces of dough and folded the pieces to resemble tiny ears. That particular tale is {#blank#}5{#/blank#} （possible）to confirm, but the long history of dumplings in China is undeniable. Typically filled {#blank#}6{#/blank#} meat or vegetables, the simple bites are distinguished by their pleated（起褶皱的）, wheat dough wrappers. They're often served for the Chinese New Year, though not because they look like crescent moons（新月）. Eating them is believed {#blank#}7{#/blank#} （bring） prosperity in the new year. Traditionally, if you want to wish someone good fortune in China, you feed them dumplings with a coin {#blank#}8{#/blank#} （hide） inside. In addition to being one of the most delicious foods ever created, soup dumplings rank among {#blank#}9{#/blank#} most dangerous. Hot soup is one of the {#blank#}10{#/blank#} （lead） causes of burns. When you're too nervous to eat it whole, tear into the dumpling while it's on your spoon and drink the soup one cautious sip at a time.