大学英语10分钟presentation.
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Life comes in a package. This package includes happiness and sorr ow, failure and success, hope and despair. Life is a learning proces s. Experiences in life teach us new lessons and make us a better p erson. With each passing day we learn to handle various situations. LoveLove plays a pivotal role on out life. Love makes you feel wanted. Witho ut love a person could go hayward and also bec ome cruel and ferocious. In the early stage of our life, our parents are the ones who shower us with unconditional love and care, they teach us about what is right and wrong, good and bad. But we always tend to take this for granted. It is only after marriage and having kids that a person understands and beco mes sensitive to others feelings. Kids make a person responsible and m ature and help us to understand life better.Happiness and SorrowMaterialistic happiness is short-lived, but happiness achieved by bringing a smile on others face gives a certain level of fulfillment. Peace of mind is the main link to happiness. No mind is happy without peace. We rea lize the true worth of happiness when we are in sorrow. Sorrow is basic ally due to death of a loved one, failure and despair. But these things a re temporary and pass away.Failure and SuccessFailure is the path to success. It helps us to touch the sky, teaches us to survive and shows us a specific way. Success brings in money, fame, pride and self-respect. Here it becomes very important to keep our hea d on out shoulder. The only way to show our gratitude to God for besto wing success on us is by being humble, modest, courteous and respectf ul to the less fortunate ones.Hope and DespairHope is what keeps life going. Parents always hope their children will do well. Hope makes us dream. Hope builds in patience. Life teaches us n ot to despair even in the darkest hour, because after every night there i s a day. Nothing remains the same we have only one choice keep movi ng on in life and be hopeful.Life teaches us not to regret over yesterday, for it has passed and is be yond our control. Tomorrow is unknown, for it could either be bright or d ull. So the only alternative is work hard today, so that we will enjoy a b etter tomorrow.人生好似一个包裹,这个包裹里藏着快乐与悲伤、成功与失败,希望与绝望。
①Hello everyone, today I want to show you a part of how the earth was made, and mainly talk about Yellowstone.②As continents shift and clash, volcanoes erupt, and glaciers grow and recede, the Earth’s crust is carved in countless fascinating ways, leaving a trail of geological mysteries behind. And one of the greatest is Yellowstone National Park in Wyoming. This is one of the world’s most geologically active places, shaken by up to 5000 earthquakes every year, and with more geysers and hot springs than in the rest of the world combined.Scientists studying Yellowstone are uncovering a violent past. Carved water, crushed by ancient glaciers and blasted by the biggest volcanic eruptions ever known on the planet. And even today, Yellowstone is one of the most dangerous places on Earth.③Yellowstone is one of the most amazing places on Earth, and it’s unique. It contains some of America’s most stunning scenery and wildlife.Yellowstone is the world’s first national park which is in the northw estern corner of Wyoming and overlaps into Montana and Idaho. The park covers 3468 square miles, 63 miles north to south and 54 miles east to west. It’s a very unusual geology that created the park.④Old Faithful is the star attraction of Yellowstone. It’s one of the most predictable geographical features on Earth , erupting almost 91 minutes.⑤Beneath Old Faithful is a rather complex plumbing system, filled with caverns and conduits and constrictions. Rainwater saturating the ground around the geyser slowly fills its underground reservoir. Hot rocks below ground heat the water under pressure for around 90 minutes. Suddenly some water spurts through a tiny, five inch wide crack in the rocks. This causes a drop in the pressure within the water chamber. In a instant, thousands of gallons of water are turned to steam and blasted up into the air.The gases come out from the geysers is the same mix that is found coming out of volcanoes. So gases are clear evidence that under the springs and geysers is a volcano. Yellowstone must be powered by the heat of the volcano.⑥People can’t see a smoking volcano or a big steep volcanic crater. But where is the volcano? Scientists find out evidences to show us that Yellowstone is the super volcano.⑦The black layer that geologists call “obsidian” is actually a type of glass. It’s crucial evidence that the rocks and soil here came out of a volcano. Because of obsidian is forged when boiling hot ash and gas rapidly cool under great pressure. And that’s just what happens when hot volcano clouds roll out across the landscape.⑧There is one way that so much ash could have been blasted so very far away from its source. The eruption must have been larger, farlarger than anything ever seen by man.⑨So big that scientists now label it as a super eruption.⑩The geologists have recreated what must have happened here one the day Yellowstone exploded.Incandescent avalanches of ash raced out of the park in all directions. They travelled at very high velocity, easily over 100 miles per hour, across the land surface and obliterating everything in its path. It was extremely hot when it arrived here as hot as 1500 degrees Fahrenheit.①All of the evidences about the size of the super eruption help solve the mystery of the missing volcano. Scientists realized that the super eruption was so enormous that it must have blown the volcano to pieces.②The repeated hotspot explosions on land have made Yellowstone unique. Each of the earlier explosions blew the original mountains to pieces. Then the land smoothed over with later flows of more runny lava that was released from deep under the Earth’s crust.Multiple strands of evidence combine to reveal Yellowstone’s slumbering monster , the gigantic hotspot plume lying under the park.On the timescale that the geologists work to, a coming super eruption in Yellowstone may will be right around the corner. That corner could be 10,000 or 100,000 years in the future. Or it could be tomorrow.A new and devastating chapter in the ever changing story of how theEarth was made.。