大学英语口语(四) Presentation文稿

1-2 XUANXUAN

Hello everyone, today I want to show you a part of how the earth was made, and mainly talk about Yellowstone.

As 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.

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Yellowstone 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.

Hundreds of species of mammals, birds, fish and reptiles have been documented, including several that are either endangered or threatened. The vast forests and grasslands also include unique species of plants. Yellowstone Park is the largest and most famous megafauna location in the Continental United States. Grizzly Bears, wolves, and free-ranging herds of bison and elk live in the park.

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Old Faithful is the star attraction of Yellowstone. It’s one of the most predictable geographical features on Earth , erupting almost 91 minutes.

Beneath 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.

People can’t see a smo king 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.

The 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.

There is one way that so much ash could have been blasted so very far away from its source. The eruption must have been larger, far larger than anything ever seen by man.

Scientists now label it as a super eruption.

The 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.

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All 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.

The 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 the Earth was made.

大学英语口语考试对话

A: Hi, Wu, what's up B: I am reading, see it's a good book. A: Well, I see. "历史深处的忧虑林达著" what's the book about B: It's about the different culture and life view between Chinese and American. A: Oh, cool, I know a lot about that have been working along with some American guys a long time. B: So tell me how A: First in China, if you get good benefit from your boss, you should not show you up, people will jealous and even do you sometimes. But in America, you should not worry about it, everybody will thumb up to you if you get good benefit by your hard work. It's more easy and open to deal with American, but it's so hard to deal with some Chinese guys. B: Hmmm, sometimes.... A: Second in China, if you are working hard, you will be jealous in most times. They will talk about your in the back, and maybe doubt what you want. It's seldom happening in America or other Western country. B: Well, it's.... A: Okay, Ancient China is the most beautiful and powerful country in the world, I think even today the Western will not get that culture in mind. (ring) Sorry, I get a call, see you later. B: See you.. A: oh! My God! Fancy meeting you here.A: 哦，天啊！太巧了，在这儿碰到你。B: Yes, what a surprise! We haven't seen each other almost half a year.B: 是呀！真没想到。我们已有半年没见了吧。A: Almost. Where are you heading nowA: 差不多。你去哪儿B: Oh. I'm going to attend a meeting about making Chinese culture various and globalized.B: 哦，我正要参加一个关于使中国文化多样化和全球化的会议。A: It's so significant. The east and west culture is a comparatively separate value system of their own society, and each style of culture has advantages and dregs. So the two cultures should nourish and benefit each other.A: 这会议很有意义。东西方文化是适应它们各自社会的相对独立的价值体系，每一种文化都有它们自己的优点和不足，因此，两

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大学英语口语考试情景对话

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口语课presentation

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英语口语对话

英语口语对话

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最全大学英语口语情景对话

口语对话 1 赶时髦(go after fashion) A: Fashion show is around the corner, I’m so excited! 时装表演即将来临，我很兴奋！ B: Are there any good!这有什么好的！ A: I didn't see anything wrong with the clothes; they looked pretty nice to me. I think you don’t like it! Why?我没看出衣服有任何问题；在我看来它们都很不错。我觉得你不喜欢！为什么？ B: It was dumb. I think it's stupid for women to wear clothes like that. 这是愚蠢的。我认为女人们穿成那样是很愚蠢的。 A: The benevolent see benevolence and the wise see wisdom. 仁者见仁，智者见智。B: Do you really think people can wear that stuff and walk around the streets? 你真的认为人们可以穿那种东西走在街上？ A: Yes, I do. At least, some people certainly can. They wear high-fashion clothes to show off their sense of style and wealth. 是的，我这样认为。至少，有人一定会。他们穿着时尚的衣服展示他们的时尚感和财富。 B: Well. I still think they're dumb. It makes more sense to spend the money on more practical purposes.我仍然认为他们是愚蠢的。把更多的钱花在更有意义的地方比较实际。 A: So you think it's bad if I wear it?所以你认为我穿成这样很不好吗？ B: If you wear it I must speak nice! 如果你穿成这样我一定说它很好看！ A: I know you will say that.我就知道你会这样说。 B: Only you know me!知我者非你莫属！

大学英语口语(四) Presentation文稿

1-2 XUANXUAN Hello everyone, today I want to show you a part of how the earth was made, and mainly talk about Yellowstone. As 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.

大学英语口语对话汇总

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Oral Topics Nowadays more and more people are willing to pursue the career of teaching. What are the causes of this phenomenon? When you graduate, would you like to be a teacher? Why or Why not? Now more and more people are willing to become a teacher, because the teacher thinks that wages and benefits are getting better and better. The higher the proportion([pr?'p???(?)n] ) of employees in the workplace working pressure is more and more, the talent market to free choice career more people at the same time, it also brings greater pressure. Freedom is a two-way choice the company also has a free talent selection opportunity. As prices rise, the dual (['dju??l]) pressures of life and employment also seems to remind people in the workplace every hour and moment to work hard. One side is the pressure in the workplace, while salary welfare is getting better and this has the big fake teacher occupation, arouse people's yearning is nature. After graduation, I want to be a teacher, and has admitted to the teacher qualification certificate, on the one hand I love to teach the students, on the other hand, teachers' work is stable, the pressure is small, there are a large number of holidays.In addition, I think school relative to the entire social environment, to be pure([pj??]adj.纯洁的), more suitable for me and the teacher is still a more sacred( ['se?kr?d]adj. 神的；神圣的 ) profession, imparting(给予，传授) knowledge and educating people, there will be a great sense of achievement. With the innocent( ['?n?s(?)nt]n. 天真的人) students live, can also maintain a relatively(['rel?t?vl?]相关地 | 比较地)young one heart. 现在越来越多的人愿意当老师，因为认为老师工资和福利待遇越来越好比例越高。在职场中努力工作的职场人压力越来越大，自由的人才市场给了职场人更多的选择机会的同时，也带来了更大的压力。自由的选择机会是双向的，企业也同样有着自由选拔人才的机会。随着物价的上涨，生活和就业的双重压力似乎也在无时无刻的提醒着职场人努力工作。一边是压力重重的职场，一边是薪酬福利越来越好和拥有这寒暑大假的教师职业，引起人们的向往也是自然。 在毕业后，我也想当一名教师，并且已经考取教师资格证，一方面我喜欢教学生，另一方面教师工作稳定、压力小、有大量的假期。另外，我认为学校相对于整个社会环境，要纯洁的多，比较适合自己，而且老师仍然是一份比较神圣的职业，教书育人，会有很大的成就感。与天真无邪的学生相处，还可以保持一颗比较年轻的心。 1.What are the conditions essential to career success in the case of college graduates? In the graduate students, I think if the person's ability and strength is enough, or try to to large companies, well-known companies to go. Because in this kind of enterprise(['ent?pra?z]), you will come into contact with the larger project, contact with the higher leadership, contact more advanced management concepts and methods around you will also have more outstanding person, your accomplishment([?'k?mpl??m(?)nt; ?'k?m-])quality will have a raise.