3#塔吊基础方案

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ⅲ与3的用法

ⅲ与3的用法
在数学中，罗马数字Ⅲ和阿拉伯数字3具有相似的意义，都表示计数或顺序。

但是，罗马数字Ⅲ通常用于较大的数字，特别是在罗马时代，而阿拉伯数字3则更为通用。

此外，罗马数字Ⅲ还有特定的数学符号意义，例如表示三角形。

- 阿拉伯数字3的用法：
阿拉伯数字3是一个基本的计数和顺序符号，可以用于表示数量、次序或顺序等。

例如，表示数量时可以表示三本书、三个苹果等；表示次序或顺序时可以表示第三名、第三个进球等。

在数学中，3通常用于表示一些基本的数学概念或运算，如三次方根、三角函数等。

- 罗马数字Ⅲ的用法：
罗马数字Ⅲ主要用于较大的计数或顺序，特别是在罗马时代。

例如，罗马帝国的年份和历史事件通常使用罗马数字来标记。

此外，罗马数字Ⅲ也可以用于表示三角形的数学符号，例如直角三角形、等边三角形等。

在科学和工程领域，罗马数字Ⅲ也用于表示一些特定的参数或符号，如质量、体积等。

总之，罗马数字Ⅲ和阿拉伯数字3都是计数和顺序的符号，但在使用上略有不同。

罗马数字Ⅲ主要用于较大的计数和顺序，特别是在历史和科学领域，而阿拉伯数字3则更为通用，在日常生活中更常用。

3在生活中可以表示什么

3在生活中可以表示什么
在生活中，数字3可以表示许多不同的事物和概念。

它是一个有趣而多面的数字，可以在各种场合和情境中被发现。

下面我们来看看3在生活中可以表示什么。

首先，3可以表示团结和和谐。

在许多文化和宗教中，3被视为一个具有特殊
意义的数字。

例如，在基督教中，三位一体代表了上帝的三个位格，父、子和圣灵。

在许多民间传说和神话中，三个兄弟或三个姐妹通常代表着团结和和谐的家庭关系。

因此，3可以被视为一种象征，代表着团结和和谐的力量。

其次，3也可以表示平衡和完整。

在许多领域中，平衡和完整都是非常重要的
概念。

例如，在艺术和设计中，三角形被认为是一种非常平衡和完整的形状，因为它具有三个相等的边和三个相等的角。

在哲学和心理学中，三个要素的平衡和完整性被视为一种理想状态，可以带来内心的平静和满足感。

最后，3也可以表示变化和发展。

在自然界和人类社会中，一切都在不断地变
化和发展。

这种变化和发展通常可以被分为三个阶段，开始、中间和结束。

例如，在植物的生命周期中，种子发芽、成长、开花结果，这三个阶段代表着植物的生长和发展过程。

在人类社会中，许多事物也经历着类似的变化和发展过程，例如家庭的成长、企业的发展等。

综上所述，3在生活中可以表示团结和和谐、平衡和完整以及变化和发展。

这
个数字在我们的日常生活中随处可见，它提醒着我们生活中重要的价值和原则，同时也让我们更加深入地理解世界的本质和规律。

让我们在生活中保持团结和和谐，追求平衡和完整，不断地变化和发展，让自己和周围的世界变得更加美好和丰富。

3的寓意和象征

3的寓意和象征3的寓意和象征一直以来都是令人着迷的话题，它在人们的生活中占据着重要的地位，不仅仅出现在数字、图形、文学、艺术等方面，还深刻影响着人们的思想、信仰和文化。

在这篇文章中，我将详细介绍3的寓意和象征，以及它所代表的含义和影响。

首先，3是一个具有神秘色彩的数字，它既可以代表幸运和成功，也可以代表不幸和厄运。

在苏格拉底哲学中，3被视为灵魂的数字，因为人们的灵魂是由三部分组成的：理智、情感和欲望。

在基督教中，3被视为象征着三位一体的上帝：父、子和圣灵。

此外，3还代表了生命、死亡和再生。

在古埃及神话和其他文化中，3代表了三个阶段的循环：生命、死亡和再生。

因此，3可以被看作是一个象征着生命循环的数字。

其次，3还与创造、平衡和完美相关联。

在美学中，3是一个非常重要的数字。

它被视为最平衡和完美的数字，因为它刚好处在1和5之间。

三角形也是一个具有完美平衡的形状。

许多艺术品中都有3的影子，例如三原色、三分色彩、三分构图等等。

此外，在许多文化中，3还被视为一个神圣的数字，因为它代表了创造力和天赋。

三只乌鸦、三只小熊和三只猪都被视为聪明、勇敢和有才华的动物，在古代也被视为象征着精灵和神仙。

最后，3还代表了联合、和谐和团结。

这一点在许多文化中都非常明显。

在儒家文化中，三才是社会组织的基础，三纲五常是家庭道德的基础。

在希腊神话中，三姐妹毕斯提斯是命运女神，代表着联合、平衡和团结。

在印度教中，三位主神布拉马、维希努和湿婆代表着三种“神圣能量”，这些能量一起形成了宇宙的平衡和谐。

3的寓意和象征是多种多样的，每个人对于3的理解也是不同的。

它可以代表幸运、成功、生命、创造力、和谐、团结等等，这些都是人们追求的目标。

同时，3也可以代表着不幸、痛苦和困难，对于这些挑战，我们需要勇敢地面对和克服。

因此，3不仅是一个数学数字，也是一个哲学概念和文化符号，渗透在人们的生活和思维之中。

它给我们带来了深刻的启示和思考，也让我们惊叹于数字和生命的奥秘。

新标准大学英语（第二版）视听说3听力原文及选择题整理

新标准⼤学英语（第⼆版）视听说3听⼒原⽂及选择题整理⼤学英语三视听说3第⼆版听⼒材料以及选择排序题整理U1Outside view1-2原⽂Presenter: Happiness is not what most students have in mind when they think of school. Yet a school in Germany has developed a novel way to raise the morale of its students, by teaching happiness in classes. Students at Heidelberg’s Willy Hellpach School of Economics are learning how to achieve happiness as an official subject, alongside mathematics and languages. This is the first school in Germany to develop a happiness course, intended for 17- to 19-year-olds preparing for university entrance exams. Ernst Fritz-Sch ubert, the school’s principal, is on a mission to change things.Ernst: It was my idea –I’ve been at this school for 31 years, and I feel that school and happiness have to be reunited. These are two terms which are not considered together, because one does not connect school with happiness. In some cases school comes behind the dentist on the popularity scale and we should try to push schools’ popularity a bit. It has been proved by science that a happy student can learn more than an unhappy one. Unhappy students can concentrate for a while but do not use all their potential. The happiness classes are intended to help students fulfill their potential. They will help the students live happy and prosperous lives.Presenter: The classes aim to help students in achieving a positive state of mind, by using all their own resources and boosting their self-esteem. In addition, they hope classes will increase self-awareness and physical comfort. Happiness classes are also intended to make students more aware about their environment and society as a whole. During classes students are encouraged to express themselves and observe their peers’ behaviour. The classes are taught by Bjoern Bonn, an actor and visiting lecturer.Outside view 3-4原⽂Bjoern: One of the exercises I do is to have one of the students walk across the classroom, with the others copying his walk. Through this exercise, I hope they learn something about themselves. Why do I move like this? How do others see my way of walking? I hope that with a higher body awareness they ideally – of course it will take time – achieve a higher self-consciousness which could lead to happiness. Wolfgang: We give these classes to students to help them find happiness. Now the question is: How do I define happiness? Happiness is for example a strengthening of the personality. We are providing helpful suggestions to make stronger people. People that ask "Who am I as a person? Am I really happy?" Pascal: It takes time and everybody has to find happiness for themselves. You cannot go into a coaching lesson and say, “Teach me happiness.” One can only get indications from teachers or the visiting lecturers. There are also happiness scientists, if we could talk to one of those I’m sure he would have some hints.Yosma: You would think that the teachers are writing definitions on the board. Not true. Those who want happiness have to find it for themselves, you cannot really learn that.Presenter: So what does it take to be happy, and can you learn it at school?News report 原⽂1、Recent statistics show that young people are heading abroad in ever-increasing numbers – at least temporarily. Experts say spending time overseas can give students an advantage when looking for a job after they graduate. Employers are attracted to candidates with international experience and global skills.Audrey Morgan, a graduate of the University of Pennsylvania, was inspired to learn Spanish. She decided to spend a semester studying in Spain during her junior year. That experience led to the job she has today, as an engineer for a technology company with offices all over the world.Her current work project involves working closely with an organization in Spain, and her fluent Spanishmeans she is able to translate documents from Spanish to English and communicate with her Spanish co-workers. She hopes to work in one of her company’s international offices within a few years.It’s up to students to decide how long they want to spend studying overseas. They may go for a year, a semester or a summer. However long or short the time, they are sure to have a rewarding experience. Q1: How does studying abroad give students an advantage in the job hunt?A. Employers are looking for candidates who have global skills.Q2: How much time should students spend overseas?D. Any amount.2、Potential college students are once again facing the annual ordeal of college admissions. Each year many university-bound students in the US fear writing the required college application essay. However, it is a chance for students to show admission officers who they really are beyond grades and test scores.A strong, well-written essay can make a difference when universities are choosing between talented applicants.Each university has its own set of essay prompts and questions that students can answer. They want students to reveal their best qualities and interests, show their creativity, as well as their writing skills. One university’s sample prompt is: “Describe the world you come from –for example, your family, community or school –and tell u s how your world has shaped your dreams and aspirations.” Or a question simply asking “What makes you happy?”Some students find that the essay is one of the most challenging things they’ve written. They have to think about issues that really matter to them, what their values are and what their experiences mean to them. Usually, by the end of the process, students will have discovered a lot about themselves that they didn’t know before.Q1: What do we learn about the college application essay from the news report?D. Students are required to submit an essay to universities.Q2: How do students feel about writing the college application essay?B. Students are afraid of writing the essay.Inside view1、Interviewer: Can you tell me … how do you think you have changed as you have matured? What things have had a major influence on you?Speaker 1: Well, let me think ... I suppose going to university had a big impact on my life. It made me much more open-minded. I met so many different types of people there with weird and wonderful ideas and it changed the way I see the world. I’m much more tolerant now ... It made me a more rounded person.Interviewer: Great ... And has any particular person had a central role in forming your character? Speaker 1:I guess that’d ha ve to be my grandfather. I was very close to him and he taught me to stand up for my beliefs. He was always telling me about his ...Interviewer: So what people or events have had an impact on your life?Speaker 2: I think that travelling in my gap year made me grow up and see both the beauty of the world and, well ... just the generosity of ordinary people. I travelled a lot around Asia and you know, I found that in some of the poorest countries, like Cambodia and Laos, people share whatever little they have, and they possess a real joy for life. It’s probably made me a less selfish person.Interviewer: Interesting. ... So you would recommend that young people take a gap year to discover themselves and the world?Speaker 2: Definitely. It gives you an opportunity to learn about the world beyond the one you grew up in and I found it really …Interviewer: Could you tell me what things in your life have had the greatest influence in forming your personality?Speaker 3: Well ... a couple of years ago I was on a reality TV show where a group of young people all lived in a house together. Each week someone was voted off by the audience. I got down to the final three! I suppose being on the show and seeing how the other contestants behaved made me realize howselfis h and spiteful some people can be just to get what they want. I also realized it’s best to just be yourself in life. If you pretend to be someone different people will eventually see through the lies. Interviewer: Right ... And how did you feel when you were eventually voted off?Speaker 3: Relieved, to be honest with you. But you know … a slight regret that I didn’t win because I kind of ...Interviewer: So can you tell me, what one thing do you think has had the biggest impact on your life? Speaker 4: Hmm, that’s a difficult question. But I think helping victims of the tsunami in 2004 had a very great impact on me. I’m half Thai and I’d just arrived in Thailand for a family Christmas holiday. When I heard the news I knew I had to help –you couldn’t not. I ended up acting as an interpreter for a group of volunteer doctors. It was an incredibly difficult time but you know, even in the middle of such a horrific tragedy there is still a huge amount of genuine human kindness.Interviewer: That’s amazing! And ha s it changed the way you view your future ...1. How did going to university change Speaker 1?C. It made him more open-minded.2. How did travelling change Speaker 2?rD. It made her grow up.3. How did being on a reality TV show change Speaker 3?A. It m ade him realize it’s important to be yourself.4. What did volunteering help Speaker 4 see?B. Genuine human kindness.2、Tony: Talking to us today in our Life Choices series is Joan Robinson, an academic counsellor at Manchester University. She gives advice to school students on choosing the right subject to study at university. Joan, welcome to the show. Joan: Thanks Tony.Tony: So Joan, what do our listeners need to think about when choosing a course? It’s a huge, potentially life-changing decision, isn’t it?Joan: Yes. I generally give students advice in two areas. Firstly, know yourself, and secondly, think to the future.Tony:When you say “know yourself” what do you mean?Joan: Basically, I mean evaluate your own personal strengths and weaknesses, your personality traits and the things you like.Tony: I see ... So how can our listeners do this?Joan:Well, start by asking yourself questions to help reflect on your life so far. For example, what subjects are you good at? Are you an organized and self-disciplined person? Are you confident and outgoing? Do you like working with others in a team or do you prefer working alone? These kinds of questions will help you discover more about yourself.Tony: Sounds like good advice. How about your second point regarding the future?Joan: Well, your choice of major subject is likely to have a significant impact on your future career so it’s important to look into this carefully. I recommend you check not only which academic subjects will help you get into a particular area of work, but also look carefully at what universities offer. Each university has its strengths so try to choose one that is the best in your chosen field. Find out what links the department has to related industries and leading companies in it.Tony: Good point. Now I’d like to take some calls from our listeners. First up we have James on the line. Hi James! How can we help?James: Hi. I’m interested in a career in IT and I’d like to ask Joan whether she thinks it’s better to go to a highly respected university, like Oxford, or to study somewhere that has more of a vocational focus? Joan: Well, James, you know it really depends on what you expect to get out of a university and how you see your future. Basically a handful of the brightest graduates are picked from the top universities around the world to join the leading IT companies. So I’d say if you’re a high-flyer then this is the route that might be for you. But if you are looking for a more mainstream career then you should consider a course that helps you acquire practical, transferable skills that you can use in the workplace ... and lookat which universities have the best levels of graduate recruitment for the kind of job you are aiming for. James: I see! Thanks a lot. That really helps me out …UNIT2Outside view1、Presenter: Around the world many children are living in poverty. Many children live in countries where there is war. Many children do not get enough to eat. Some of these children are suffering from malnutrition. Many children in the world cannot go to school. One agency that is helping these children is UNICEF. UNICEF means the United Nations Children’s Fund. UNICEF has more than 7,000 people working in 157 countries around the world to help children. One country where they are doing a great deal of work is Afghanistan. A whole generation of children in Afghanistan has never known peace, until recently. Now, UNICEF is bringing food for malnourished children. They are bringing medicine. Here a medical team travels on horseback to bring medicine to a remote mountain village. And UNICEF is helping the children get an education. DrLaroche: During the time of Taliban we have made a survey among 40,000 kids. And, uh, and they all say that the first thing they want is peace. And the second thing that they want is, was education. Presenter: The Taliban destroyed almost 2,000 schools. Under the Taliban, girls were not allowed to attend school at all.Moyeen: Well, over 50 per cent of the school has been destroyed completely. In the rest of the 50 per cent schools which, eh, eh, needs repair, we are trying to accommodate all the children in the schools. Presenter:Some of the schools are in people’s homes. This is a home school in Kabul. The teacher, HabibaKilwati, has been running the school for 12 years. She supervises 26 other schools like it.2、Student 1: We want to learn, so we can become teachers, doctors, or engineers and be like normal students.Presenter: It was dangerous for children to go to school. Under the Taliban, police punished families whose children went to school. Today, children are happy to be in school.Student 2: This morning I had some tea and an egg and came to school. I have notebooks, pencils, erasers, and friends and fun here.Presenter: UNICEF is helping rebuild the educational system in Afghanistan in many ways. UNICEF is helping to train teachers. They are rebuilding schools. They are printing textbooks, and delivering books and other supplies to schools. This girls school was closed under the Taliban. Now it is opening again. It has room for 960 students. These girls are happy to be back in school.Student 3: I am very disappointed and sad that I wasted six years. There was no education then. I tried to study then with my parents, but it’s not the same. It wasn’t so b ad, but now I am much happier because the schools are reopening.Maliha: We plan to open the schools and get these children enrolled and back in school. And to give them back their education, so they can read and write.Afghan man: When the Taliban came to power and closed the schools, girls stayed at home. Now there is an opportunity for them to continue their education. We are very happy about this. We can be proud of our girls, our young people. They can go back to school.Presenter: UNICEF is working on its mission to bring food, medicine, and education to the children of Afghanistan. In the process, they are also bringing hope.1.What happened when children went to school under the Taliban?D. The police punished their families.2.How is UNICEF helping to rebuild the educational system?A. They are printing textbooks and delivering books to schools.3.How many girls does the girls school have room for?B. 960.4.What did Student 3 try to do in the past six years?B. To study with her parents.5.Why does the Afghan man feel happy and proud?A. Because girls can continue with their education.News report > 1For those of you who were thinking the selfie was the final development in photography, there’s something new – a growing trend for people to recreate their childhood photos as adults. Some people recreate the photos as an amusing gift for their family, and others do it to relive their happy memories. Some of the photos have spread quickly across social media after being shared online.The Dobbie sisters’ family photos are the latest to go viral. The four sisters from Australia decided to create one last memory with their pet dog just before his death. They’d had Tigger since they were all children, but after 16 years together, they made the difficult decision to put him to rest. They decided to recreate a photo they found showing the girls when they were younger, sitting under a tree holding their beloved dog. The result is a heartwarming image that shows how much they have all grown and how the sisters’ love for Tigger has never changed.Q1: Why do people recreate their childhood photos according to the news report?They recreate photos to relive their happy memories.Q2: Why did the Dobbie sisters recreate the photo?C. Because the sisters wanted to create one last memory with their dog.News report > 2A rare Star Wars figurine was sold for 2,7000 US dollars. Experts say nostalgia is driving prices higher. For many adults, childhood memories revolve around the toys that they played with when they were younger. Seeing or holding an old toy from their past can transport them back to the time when they first laid eyes on it at the toy store, and the excitement they felt about taking it home to play. Toys from thepast were much simpler compared to the high-tech toys of today. Some may even argue that toys from the past encouraged children to use their creativity and imagination. In order to recapture their happy childhood memories, people collect old toys they had as children.There are many serious collectors who are willing to pay top prices to bring back memories. For example, Cabbage Patch Kids were dolls that were very popular in the 1980s. While toy stores still sell them, collectors want the original dolls and the rare collectibles are listed on eBay for up to $2,500. Other popular collectible toys are action figures such as G. I. Joes, Star Wars figures, My Little Ponies, and Barbie dolls.Q1: What is the difference between toys from the past and toys of today?D. Toys from the past encouraged more creativity and imagination than toys of today.Q2: What do we learn about old toys from the news report?B. Old toys can bring back happy memories for many people.Insideview1、One of the strangest feelings I’ve ever had was when I returned by chance to a place where I’d been happy as a child. My husband and I were visiting some friends for the weekend – they lived about 200 kilometres away. We were driving along when I suddenly saw a church in the distance that I recognized. My favourite aunt had lived very near it on a farm that my brother and I used to visit once a year with our parents.We were city kids, brought up in the middle of London, and this was a working farm – the real thing – with cows in cowsheds, fields with ponds and a muddy yard full of smelly pigs, and – we had the run of the whole place – it was just paradise for us. And then – there was the food – oh, home-made jam and bread and cakes, milk fresh from the cow. And my aunt Lottie –a farmer’s wife – and her husband, Uncle George and their kids, Katie and Ben, our two cousins who my brother and I really got on with. It was heaven that week we used to spend there. They moved from the farm when I was … how old? –about 14. So I’d never been back or seen it again.An yway, there we were, and I’d just seen the church –so we turned off and drove down this really narrow lane. And before I knew it we were in front of Aunt Lottie’s farm! The extraordinary thing was that it hadn’t changed – not one tiny bit.It was a lovely old place with a typical country cottage garden, full of flowers. There were lots of barns and sheds – they were next to –next to the farm. And you know, I can’t even begin to describe the feeling I had standing there. It was –oh, what was it? –an incredibly powerful feeling of longing –nostalgia for the past –for times when I’d been very, very happy. But it was the past. I hadn’t been there for 20 years and I couldn’t go back, so I also had a feeling of huge sadness, that I couldn’t havethose times again. And – at the same time – great sweetness, because those times had been so happy, so innocent –because I was a child! So there was this extraordinary mix –of longing, sadness and sweetness, all at the same time. It was the strangest feeling I’ve ev er had.1. Why were the speaker and her husband near the farm?C. Because they were visiting friends.2. Where had the speaker been brought up?B. In the middle of London.3. Why does the speaker describe the farm as “just paradise”?A. Because it was a real farm and she and her brother could run around.4. What food does the speaker mention?C. Jam, bread, cakes and milk.5. What do we learn about the farm?D. The garden was full of flowers.6. What feelings does the speaker mention?A. A longing for the past, sadness and sweetness.2、Interviewer:So what’s your first memory of school, Kevin?Kevin:I was really looking forward to school, I remember that, I just couldn’t wait. Yeah, Johnny, my brother, was a year older than me and he seemed so grown-up, with his red blazer and smart shoes.And I wanted to go to school and be grown-up too. I don’t remember much of the first day actually, apart from this little boy lying on the floor and screaming and screaming and me thinking what a baby he was. Interviewer: Right! What about you, Eva?Eva: I just have this one memory of this coat rack with all our coats. And I was looking for my peg which had a little picture of an elephant next to it. I remember I was crying because I wanted to go home and I coul dn’t get my coat on. I was crying so much and then the teacher came and helped me. Interviewer: OK, so what about your first best friend at school?Kevin:Oh, yeah, well, Steve, I remember him? because he’s still my best friend!Interviewer: Still your best friend!Eva:That’s so great!Kevin:Yeah, we didn’t know each other before we started school but we became really good friends and so did our mums. Our families ended up going on holiday together and that kind of thing. But we used to fight a lot, Steve and I, and the teachers used to get very cross with us. But we were just having fun. Interviewer: Cool! And what about you, Eva?Eva: My best friend was a girl called Robina. She had short blond hair, I remember I thought she looks (looked) like an angel. We sat next to each other and held hands and played fairies in the playground. She left in Year 3 and I cried for days. Interviewer: Oh, how sad! So what about the day you left school? How was that?Eva: I had a lot of mixed feelings, I remember walking home with this amazing feeling of freedom, you know, no more rules, no more bossy teachers. But I also felt pretty sad, because I’d had some good times. I was in a group of girls who were so supportive of each other.Kevin:I couldn’t wait to leave, I was counting the days. I just wanted to get a job, get a life, earn some cash. The day I left, I went out to celebrate with a couple of my mates and – had a very good time!UNIT3Outside view1、Part 1Voice-over: The Mona Lisa, the most famous painting in the world, was truly revolutionary even in its time. While he was painting the Mona Lisa, Leonardo da Vinci broke all the rules, even his own. In spite of the fact that Leonardo and other artists believed that women should only be portrayed with eyes gazing slightly down, Leonardo painted the Mona Lisa looking directly at the viewer. The position of her body is another innovation. While her face looks straight ahead her body is slightly turned, a pose that creates a sense of movement and tension. In another break from tradition, the Mona Lisa is not wearing any jewellery or adornments. Finally, backgrounds in portraits usually indicated a real place but the landscape in Leonardo’s portrait seems almost i maginary.Anne: One of the things I like to do is, um, think about her face and why, what is she trying, why, what is she trying to say with her face, and I used to think that her face told more than one story. For instance, if I covered up one side of her face, it seemed like she might be a little sad or reserved, almost secretive. Scott:Her eyes are, they’re kind of looking at us or around us, through us perhaps. I think with that painting she’s the viewer and we’re the subject in a way. And she has this look that she knows something that we don’t know.Anne: And then when I covered up that side and looked at the other side, she seemed happier, um, more satisfied. And together it created sort of the mystery about her that, um, made interpreting her face very enigmatic.Scott:There’s speculation that the Mona Lisa is a self-portrait of Leonardo and I, I believe that it is, there, there, the features do line up between the Mona Lisa and sketches of Leonardo.Voice-over:2、Part 2Anne: When I was young, um, I was always interested in, um, reading books about people and, and the dynamics, different kinds of relationships they had and so when I became a painter it was natural for me to be interested in painting people and looking for similar kinds of stories to tell about them, that you might read about in a book.Scott: Uh, most of my work consists of photographic self-portraiture. Um, I’m interested in using myself as the subject, um, not only as the creator of the image but as the, the character, or the performer of, of the images.Anne:So in my portraits I’m trying to capture, um, a deeper essence of a person, um, more or less. Scott: This work here is done with a pinhole camera, which requires a very long exposure so, with a portrait you can get this feelin g of time passed. It’s not a, it’s not an instant, per se, it could be five minutes of exposure.Anne:So this is another project I’m working on. I’m almost finished with it but I still need to work on the reflections in the water, um, and the face of the boy before it’s finished.Scott: I often work with multiples and, you know, using a mirror or the same image twice and what I wanted to do was link the two portraits together with the string. It’s kind of the string of thought or this idea of remembering or the resilience of memory.Anne:I don’t just paint from photographs. I try to make a work of art. Um, I try to make a painting that goes beyond a mere photographic image. I try to capture something about the soul of the, or the essence of this person.Scott:This piece here is, uh, it’s called The Measure of Decay and behind the piece there are portraits, again, of me. I have this clay covering on that has cracked and so it’s, it’s kind of like the process of decay. So as each portrait goes around you can, you can see the image in a different focus.Anne:I love painting portraits. I love painting but portraits are very special because they’re about people. Scott:I’m fascinated by portraiture in general, and the human body and how that image lives over ti me. Anne: I like to capture what is unique and special about an individual in paint.News report>1Israeli artist EyalGever is working on a project that will be the first artwork created in space. It will be a 3D sculpture made inside the International Space Station. He will create his artwork using a zero-gravity 3D printer. Once it is finished, the sculpture will be released into the universe.Working with NASA, Gever’s space project is named “Laugh”. The 3D printer will produce a physical representatio n of a person’s laugh. Sound cannot travel in space, but this sculpture can show what laughter looks like.Gever is asking people around the world to participate in his project. There is a social media campaign called “LaughInSpace”, where people are invit ed to record and submit their laughter online. When the audio samples have been collected, people will be invited to vote on which clip should be represented in the sculpture. Then Gever will use the sounds of the winner’s laughter to create the space scul pture.。

高清电影Ed2k链接地址3

根3是无理数的证明

根3是无理数的证明今天咱们来一起看看为什么根3是无理数呢？这就像一场有趣的数学冒险哦。

咱们先来说说什么是有理数。

有理数呀，就像是我们能很容易找到规律的数。

比如说，1呀，2呀，还有像1/2这样的分数。

你看，1就是1个，2就是2个，1/2呢，就是把1个东西平均分成2份，每份就是1/2，这些数我们都能很清楚地知道它们是多少。

那无理数呢？无理数就像是一群调皮的小怪兽，藏在数字的世界里。

根3就是其中一个。

咱们来假设根3是有理数。

那按照有理数的定义，它就可以写成一个分数的样子，就像a/b（这里的a和b都是整数，而且b不能是0哦）。

而且呢，我们可以让这个分数是最简分数，就是说a和b没有除了1以外的共同的约数，就像3/4这样，3和4除了1就没有别的数能同时整除它们了。

那如果根3 = a/b，那把两边都平方一下，就得到3 = a²/b²，然后再变一变，就成了a² = 3b²。

这时候，咱们来想个例子哦。

假如a是个整数，那a²就是a乘以a。

比如说a = 5的时候，a² = 5×5 = 25。

那a² = 3b²这个式子呢，就说明a²是3的倍数。

那什么样的整数的平方是3的倍数呢？咱们可以试试一些数。

像1的平方是1，不是3的倍数；2的平方是4，也不是3的倍数；3的平方是9，这就是3的倍数啦。

其实呀，只有a本身是3的倍数的时候，a²才会是3的倍数。

那咱们就可以说a = 3k（k也是个整数）。

把a = 3k代入到a² = 3b²里，就变成了(3k)² = 3b²，算一算就是9k² = 3b²，再变一变就是b² = 3k²。

这就和前面说a²的情况一样啦，这就说明b也是3的倍数。

可是呢，我们最开始说a/b是最简分数呀，现在a和b都是3的倍数，这就矛盾啦，就像我们说好了一件事，结果发现这件事根本做不到一样。

3的数字代表什么意思有什么含义

3的数字代表什么意思有什么含义数字“三”无论是西方还是在中国都被作为神秘的象征。

那么，你知道3的数字代表什么意思吗?接下来就跟着店铺一起去看看3的数字代表含义吧。

3的数字含义数字3的含义：表达数在两个对立之间有著抽象或灵性的关系，例如阴和阳并不是一种关系，爱或欲望必须存在，这样才会有所谓的关系出现，关系的建立是存在于两端之内的第三股力量，对立的和解是宇宙中第三力量。

三的扮演角色，在“三位一体”中得以认知，这在古埃及或世界上其他的神话(例如____的三位一体)中出现。

数字3拥有极高的表达天赋，他们会非常乐意跟人交流自己的想法，也会非常喜欢各种社交关系带给自己的新鲜感。

他们喜欢在人群中表现自己，由于他们对情绪拥有极强的感受力，天性中又带着浪漫快乐的一面，所以他们时常会成为朋友圈内调解气氛的快乐源泉。

数字3的含义关键词：沟通、社交、快乐象征符号：三角型属性：灵巧聪慧型对应色彩：黄色五行：阳火星座排行：双子、双鱼数字3在形态上是个多方位的“可爱数”，把3侧翻过去就是英文字母E，躺下又像是W，趴下看又成了M，这是阿拉伯数字里最有趣的一个数。

3代表关系，黑与白无法直接关联，阴和阳必须同时存在，关系的建立是第三种力量。

1是父亲，2是母亲，而3就是它们的“孩子”。

在____中，3是圣父、圣子和圣灵的综合体，即男性驱动力+儿童状态+灵性结合三位一体数。

这是一个乐观机敏的数字，具有旺盛的好奇心，乐观善于表达，具备孩子一般的纯真与多变性。

正面优势聪明，热情，想象力丰富，有创意，幽默感，充满活力，善于表达，时尚，擅社交，沟通，多才多艺，有趣，乐观，有激情，受欢迎负面挑战夸张，缺乏责任心，做作，缺乏方向，自我怀疑，搬弄是非，幼稚，逃避现实，肤浅，虚荣浮华，喋喋不休，撒谎，铺张浪费恐惧被限制，无聊，面对现实，不被关注数字3的象征意义数字“三”无论是西方还是在中国都被作为神秘的象征。

“三”在符号象征体系中，几乎不含任何反面意义，其象征意义涉及到宗教思想、传统、神等诸多领域。

由三个不同的英文字母和三个不同的阿拉伯数字组成一个

一般模型：一般模型
个元素，从4个不同的元素a、b、c、d中取出个元素，然不同的元素中取出3个元素后按照一定的顺序排成一列，共有多少种不同的排法？一定的顺序排成一列后按照一定的顺序排成一列，共有多少种不同的排法？
由此可以写出所有的排列：
abc adb bca cab cda dba
abd adc bcd cad cdb dbc
练习
练习2 练习2．在A、B、C、D四位候选人中，选举四位候选人中，四位候选人中
正、副班长各一人，共有几种不同的选法？写出所副班长各一人，共有几种不同的选法？有可能的选举结果．有可能的选举结果．解：选举过程可以分为两个步骤．选举过程可以分为两个步骤．
步选正班长，人中任何一人可以当选人中任何一人可以当选，种选法种选法；第1步选正班长，4人中任何一人可以当选，有4种选法；步选正班长步选副班长，人中任一人都可以当选，第2步选副班长，余下的人中任一人都可以当选，有3 步选副班长余下的3人中任一人都可以当选种选法．种选法．根据分步计数原理，不同的选法有：根据分步计数原理，不同的选法有： 4 ×3＝12（种）．＝（其选举结果是：其选举结果是： AB AC AD BC BD CD BA CA DA CB DB DC
问题1 从甲、问题1 从甲、乙、丙3名同学中选出名参加名同学中选出2名参加名同学中选出
某天的一项活动，其中1名同学参加上午的活动名同学参加上午的活动，某天的一项活动，其中名同学参加上午的活动， 1名同学参加下午的活动，有多少种不同的方法？名同学参加下午的活动，名同学参加下午的活动有多少种不同的方法？元素：元素：被选取的对象一般模型：一般模型：个元素，从3个不同的元素个不同的元素a,b,c中取出个元素，然后按照一中取出2个元素然后按照一定的顺序排成一列一共有多少种不同的排列方法？排成一列，定的顺序排成一列，一共有多少种不同的排列方法？

《听力教程3》听力原文及参考答案

《听⼒教程3》听⼒原⽂及参考答案Book ThreeUNIT 1Section OnePart 1Spot DictationHouses in the FutureWell, I think houses in the future will probably be (1) quite small but I should think they'll be (2) well-insulated so that you don't need so much (3) heating and (4) cooling as you do now, so perhaps very economical (5) to run. Perhaps they will use (6) solar heating, although I don't know, in this country, perhaps we (7) won't be able to do that so much. Yes, I think they'll be full of (8) electronic gadgets: things like very advanced televisions, videos, perhaps videos which take up ... the screen (9) takes up the whole wall. I should think. Yes, you'll have things like (10) garage doors which open automatically when you (11) drive up, perhaps electronic (12) sensors which will (13) recognize you when you, when you come to the front door even. Perhaps (14) architects and designers will be a bit more (15) imaginative about how houses are designed and perhaps with the (16) shortage of space people will think of putting gardens (17) on the roof and, and maybe rooms can be (18) expanded and, and (19) contracted* depending on what you use them for, so perhaps there'll be a bit more (20) flexibility about that. Part 2Listening for GistA: Tuesday two fifteen. Let me look inmy diary. B: No, Thursday.A: Oh, I'm sorry. I thought you said Tuesday.B: Thursday two fifteen. No, I'm sorry. I've got an appointment until three. Could we make it later?Say three fifteen?A: Well, there's a lot to talk about. It'll take a couple ofhours, at least. B: Shall we say Monday morning, then?A: Monday morning. All right. Nine o'clock?B: Nine. I think that will be all right. I'll ring you backand confirm. A: All right. But ring before five, couldyou?B: All right.A: Right you are. Bye. B: Bye.Exercise. Directions: Listen to the dialogue and write down the gist and the key words that help you decide.1.This dialogue is about making an appointmentWoman: Listen! I'm terribly sorry I'm late. Man:Man: Oh, that's all right. It doesn't really matter, does it? I haven't got anything better to do, have I?Woman: Just let me explain, will you?Man: I've only been waiting for over an hour. That's all.Woman: Yes. I know, and I would have ...Man: After all, my time isn't really that important, is it?Woman: Please don't be like that. Just let meexplain. (Silence. Man says nothing.)Woman: I ... I tried to get here in time but just after I left home, the car broke down.Man: The car broke down?Woman: Yes, and ... well ... luckily ... there was a garage near me. And ... and it took them a whileto repair it.Man: Why didn't you at least phone?Woman: I would have! But I didn't know the number of the restaurant.Man: You could have looked it up in the telephone book!Woman: Yes, but ... you'll never believe this ... I couldn't remember the name of the restaurant. I knew where it was, but forgot the name.Man: I see. Well, at least it was lucky you found a garage to repair your car. Woman: Yes. It was something I couldn't do myself. It didn't take too long, but that's why I'm late,you see.Man: Uh-huh. Which garage, by the way?Woman: Pardon?Man: Which garage did you take it to?2.The key words are Tuesday. Thursday. two fifteen. three fifteen. Mondaymorning. nine o'clock.Section Two Listening comprehensionPart 1 DialogueI'm terribly sorry I'm late.Woman: Listen! I'm terribly sorry I'm late. Man:Man: Oh, that's all right. It doesn't really matter, does it? I haven't got anything better to do, have I?Woman: Just let me explain, will you?Man: I've only been waiting for over an hour. That's all.Woman: Yes. I know, and I would have ...Man: After all, my time isn't really that important, is it?Woman: Please don't be like that. Just letme explain. (Silence. Man says nothing.)Woman: I ... I tried to get here in time but just after I left home, the car broke down.Man: The car broke down?Woman: Yes, and ... well ... luckily ... there was a garage near me. And ... and it took them a whileto repair it.Man: Why didn't you at least phone?Woman: I would have! But I didn't know the number of the restaurant.Man: You could have looked it up in the telephone book!Woman: Yes, but ... you'll never believe this ... I couldn't remember the name of the restaurant. I knew where it was, but forgot the name.Man: I see. Well, at least it was lucky you found a garage to repair your car. Woman: Yes. It was something I couldn't do myself. It didn't take too long, but that's why I'm late,you see.Man: Uh-huh. Which garage, by the way?Woman: Pardon?Man: Which garage did you take it to?Woman: Uh ... the one near my flat. You know. Lewis Brothers.Man: Yes, I know that garage. It's the only one near your flat.Woman: Hmm, well now, let's have something to eat. Uh, what about some ... Man: I know the garage very well! Woman: Yes. Let's see now. Yes, I think I'll have some ...Man: A pity it's Sunday.Woman: Pardon?Man: A pity it's Sunday. That garage is closed on Sunday!Exercise Directions: Listen to the dialogue and answer the following questions."Well, at least it was lucky you found a garage to repair your car."4.Because she wants to stop the conversation like this.Because he knows the girl is lying.Part 2 PassageThe Oscar Statuette1 Industry insiders and members of the press called the award "the Academy statuette", "the golden trophy" or "the statue of merit", but the term never stuck.2. No hard evidence exists to support that tale, but in any case, by the sixth Awards Presentation in 1934, a Hollywood columnist used the name in his column.3. Walt Disney was honored with one full-size and seven miniature statuettes on behalf of his animated feature Snow White and the Seven Dwarfs.1.T hey are possibly boyfriend and girlfriend.2.In a restaurant.3."It doesn't really matter, does it? I haven't got anything better to do, have I?""I've only been waiting for over an hour.That's all" "After all, my time isn't reallythat important, is it?" well, at least It waslucky you found a barrage to repair yourcar4. If the statuettes don't meet strict quality control standards, they are immediately cut in half and melted down.5.The large boxes are shipped to the Academy offices via air express, with no identifiable markings.The Oscar statuette, designed by MGM's* chief art director Cedric Gibbons, depicts* a knight holding a crusader's* sword, standing on a reel of film with five spokes, signifying the original branches of the Academy: Actors, Writers, Directors, Producers, and Technicians.Born in 1928, years would pass before the Academy Award of Merit was officially named "Oscar". Industry insiders and members of the press called the award "the Academy statuette", "the golden trophy" or "the statue of merit". The entertainment trade paper, Weekly Variety, even attempted to popularize "the iron man". The term never stuck.A popular story has been that an Academy librarian and eventual executive director, Margaret Herrick, thought the statuette resembled her uncle Oscar and said so, and that as a result the Academy staff began referring to it as Oscar.No hard evidence exists to support that tale, but in any case, by the sixth Awards Presentation in 1934, Hollywood columnist Sidney Skolsky used the name in his column in reference to Katharine Hepburn's first Best Actress win. The Academy itself didn't use the nickname officially until 1939.Since its conception, the Oscar statuette has met exacting uniform standards - with a few notable exceptions. In the 1930s, juvenile players received miniature replicas* of the statuette; a ventriloquist* Edgar Bergen was presented with a wooden statuette with a moveable mouth; and Walt Disney was honored with one full-size and seven miniature statuettes on behalf of his animated feature Snow White and the Seven Dwarfs. Between 1942 and 1944, in support of the war effort, Oscars were made of plaster. After the War, winners turned in the temporary awards for golden Oscar statuettes.The traditional Oscar statuette, however, hasn't changed since the 1940s, when the base was made higher. In 1945, the base was changed from marble to metal and in 1949, Academy Award statuettes began to be numbered, starting with No. 501.Approximately 50 Oscars are made each year in Chicago by the manufacturer, R. S. Owens. If they don't meet strict quality control standards, the statuettes are immediately cut in half and melted down.Each award is individually packed into a Styrofoam* container slightlylarger than a shoebox.Eight of these are then packed into a larger cardboard box, and the large boxes are shipped to the Academy offices in Beverly Hills via air express, with no identifiable markings.On March 10, 2000, 55 Academy Awards mysteriously vanished en route from the Windy City* to the City of Angels. Nine days later, 52 of stolenstatuettes were discovered next to a Dumpster* in the Koreatown section of Los Angeles by Willie Fulgear, who was later invited by the Academy to attend the Oscar 2000 ceremonies as a special guest.For eight decades, the Oscars have survived war, weathered earthquakes, and even managed to escape unscathed* from common thieves. Since 1995, however, R. S. Owens has repaired more than 160 statuettes. "Maybe somebody used chemicals on them to polish them and the chemicals rubbed right through the lacquer* and into the gold," explains the company president. "Or maybe people stored them someplace where they corroded." Although he stresses that the statuette is made to endure, Siegel offers this sage advice to all Oscar winners: "If it gets dusty, simply wipe it with a soft dry cloth." Exercise A Pre-listening QuestionEvery January, the attention of the entertainment community and of film fans around the world turns to the upcoming Academy Awards, the highest honor in filmmaking. The annual presentation of the Oscars has become the Academy of Motion Picture Arts and Sciences' most famous activity. The Oscar Statuette is a knight holding a crusader's sword, standing on a reel of film with five spokes.Exercise B Sentence DictationDirections: Listening to some sentences and write them down. You will hear each sentence three times.Exercise C Detailed ListeningDirections: Listen to the passage and decide whether the following statements are true (T) or false (F). Discuss with your classmates why you think the statement is true or false.----I...- 1. There were five original branches of the Academy.(Because the five spokes on the reel of film signify the original branchesof the Academy:Actors, Writers, Directors, Producers, and Technicians.)~ 2. The Academy Award of Merit was officially named "Oscar" in 1928.(Born in 1928, years would pass before the Academy Award of Meritwas officially named "Oscar.")----I...- 3. The Academy staff began referring to the Academy statuette as Oscar because Margaret Herrick said the statuette was like her uncle Oscar.(An Academy librarian and eventual executive director, MargaretHerrick, thought the statuette resembled her uncle Oscar and said so,and as a result the Academy staff began referring to it as Oscar.)4. Since its conception, the Oscar statuette has met exacting uniform standards. (There were a few notable exceptions. In 1930s, juvenile players received miniature replicas of the statuette and a ventriloquist Edgar Bergen gained a wooden statuette with a moveable mouth. Walt Disney was honored with one full-size and seven miniature statuettes. )----I...- 5. Oscars were made of plaster in the 1940s because of the War. (Between 1942 and 1944, in support of the war effort, Oscars were made of plaster.) ----I...- 6. The manufacturer, R. S. Owens makes about 50 Oscars each year in Chicago. (Approximately 50 Oscars are made each year in Chicago by the manufacturer, R. S. Owens.)~ 7. 55 Academy Awards were stolen by a mysterious person en route from the Windy City to the City of Angels on March 10, 2000.(On March 10,2000,55 Academy Awards just mysteriously vanished en route from the Windy City to the City of Angels, but how and by whom was unknown.) ~ 8. For eighty years, the Oscars have survived war, weathered earthquakes, managed to escape unscathed from common thieves and even chemical corrosion.(Since 1995, however, R. S. Owens has repaired more than 160 statuettes. "Maybe somebody used chemicals on them to polish them and the chemicals rubbed right through the lacquer and into the gold."Exercise D After-listening DiscussionDirections: Listen to the passage again and discuss the following questions.1.T he traditional Oscar statuette hasn't changed since the 1940s, when the basewas made higher.In 1945, the base was changed from marble to metal and in 1949, Academy Award statuettes began to be numbered, starting with No.501.2.(Open)Section ThreeNewsNews Item1Bush-NATO-IraqMr. Bush says he hopes America's NATO allies will stand with the United States if he decides to take military action against Iraq.All the same, the president says no action is likely in the near future. He says for now the focus is on implementing the new UN resolution that calls for a tough weapons inspection regime* and warns of consequences if Iraqi leader Saddam Hussein fails to comply*.Administration official say they expect the NATO summit to release a political statement backing the UN resolution. They say President Bush will bring up Iraq in his bilateral meetings in Prague*, but they also say they do not believe the Iraqi threat will be the focus of the summit.In Prague, the alliance plans to take steps toward the creation of a rapid deployment force that can playa role in combating terrorism. The president said even the smallest NATO member nations can contribute something to the causeExercise A Directions: Listen to the news item and complete the summary.Exercise B Directions: Listen to the news again and answer the following questions1.He hopes America's NATO allies will stand with the United States if hedecides to take militaryaction against Iraq.2.No, the president says no action is likely in the near future.3.They expect the NATO summit to release a political statement backing the UNresolution.4.The NATO summit is held in Prague.No, it will not be the focus of the NATO summit.Bush-IraqPresident Bush says everyone knows the real power in Iraq lies with Saddam Hussein: "There is no democracy. This guy is a dictator and so we have to seewhat he says." The president says the Iraqi leader has a choice to make: disarm peacefully or be disarmed by force: "If Saddam Hussein does not comply to the detail of the resolution, we will lead a coalition to disarm him. It is over. We are through with negotiations. There is no more time. The man must disarm. He said he would disarm. He now must disarm." Mr. Bush spoke with reporters while touring the Washington D.C. police department, a tour designed to highlight his plan to create a cabinet level Department of Homeland Security. He left no doubt his patience regarding Iraq is wearing very thin*, stressing the United States will no longer tolerate any efforts by Saddam Hussein to circumvent* demands to disarm. Exercise BExercise ADirections: Listen to the news item and complete the summary.This news item is about the Bush administration's attitude towards Iraq. Directions: Listen to the news again and decide whether the following statements are true (T) or false (F).British Prime Minister Tony Blair delivered a radio address late Thursdayto the Iraqi people warning that Saddam Hussein must comply with UN demands or suffer the consequences.Prime Minister Blair said Saddam Hussein must cooperate with UN weapons inspectors, or be prepared to face military action. In an interview with Radio Monte Carlo's Arabic service Thursday, Mr. Blair said war could be avoided, if Iraq agreed to disarm."The situation is very clear. If Saddam Hussein agrees to disarm Iraq of all chemical, or biological or nuclear weapons programs and capability, then conflict would be avoided, and his duty is to cooperate fully with the inspectors to tell them exactly what material he has, to cooperate and comply with them in the eradication of that material."The prime minister said he wanted to speak directly to the Iraqi people to try to dispel* what he called myths that have arisen between Christians and Muslims. He said the dispute with Iraq is not about the West versus the East or about oil, but about weapons of mass destruction.Exercise ADirections: Listening to the news item and complete the summary.This news item is about British Prime Minister's stand on the Iraqi issue.Exercise BDirections: Listen to the news again and complete the following sentences.1.Prime Minister Blair warned that Saddam Hussein would suffer theconsequences unless he cooperated with the UN weapons inspectors. Saddam Hussein should cooperate fully with the inspectors to tell them exactly what material he has, and comply with them in the eradication of that material.2.On Thursday Tony Blair had an interview with Radio Monte Carlo's Arabicservice.3.According to the Prime Minister, the conflict can be avoided if SaddamHussein agrees to disarm Iraq of all chemical. or biological or nuclearweapons programs and capability.4.Mr. Blair said the dispute with Iraq is not about the West versus the East orabout oil, but about weapons of mass destruction.Section Four Supplementary ExercisesPart 1 Feature reportBlix’s Iraq InspectionThe chief UN arms inspector has been assigned the task of searching for weapons of mass destruction in Iraq. The Security Council gave Iraq this last opportunity to disarm or face serious consequences, a euphemism* for possible war. The United States says it will make sure Iraq disarms, one way or another.But Mr. Blix* emphasizes that his inspectors will not determine the courseof events in the region. He says they will visit suspected sites, conduct interviews with Iraqi scientists, ferret* out information and report back to the Security Council for its members to decide.As for US and British intelligence reports, which the Bush administration says proves that Iraq has banned weapons, Mr. Blix says he is not going into Iraq with pre-conceived ideas of what is there.The next test for Iraq will be December 8th, the deadline for Iraq to present a full accounting of its weapons programs. If Iraq presents, in effect, a blank sheet, Mr. Blix says, he would expect the United States to put its evidence on the table, so it can be verified.Iraq has persistently maintained it does not have the banned weapons. The latest such assertion came in a letter to the UN this week, in which Baghdad accepted the latest Security Council resolution setting out the parameters* for what experts say will be the most intrusive inspections in Iraq, so far.After the preliminary technical work starting Monday, Mr. Blix says, he expects the first wave of inspections to start November 27th. Two months later, he is required to report to the Security Council on Iraq's performance.Exercise ADirections: Listening to the news report and complete the summary.This news report is about Mr. Blix's weapons inspections in Iraq.Exercise BDirections: Listen to the news again and fill in the blanks with the missing words.Mr. Blix emphasizes that his inspectors will not determine the course of events in the region. He says they will visit suspectedsites, conduct interviews with Iraqi scientists, ferret out information and report back to the Security Council for its members to decide.The next test for Iraq will be December eighth, the deadline for Iraq to present a full accounting of its weapons programs. If Iraq presents, in effect, a blank sheet, Mr. Blix says, he would expect the United States to put its evidence on the table, so it can be verified.Iraq has persistently maintained it does not have the banned weapons. The latest such assertion came in a letter to the UN this week, in which Baghdad accepted the latest Security Council resolution setting out the parameters for what experts say will be the most intrusive inspections in Iraq, so far.Part 2 PassageRise and Fall of Egypt1.The Nile River was a kind friend but occasionally a hard taskmaster of the。

lino3受热分解方程式

lino3受热分解方程式小朋友们呀，今天咱们来聊聊一个特别有趣的化学小知识，就是关于lino3受热分解的方程式哦。

你们知道吗？化学就像一个魔法世界，各种物质在不同的条件下会发生奇妙的变化。

lino3这种物质呢，就像是一个等待被触发的小魔法盒。

当给它加热的时候，它就开始展现自己独特的变化啦。

就好像我们烤小饼干一样，小饼干在烤箱里会从软软的面团变成香香脆脆的饼干。

lino3受热的时候也会发生改变。

它受热分解会变成两种新的东西呢。

lino3受热分解会产生li2o和no2还有o2。

想象一下呀，lino3这个小团体，在热量这个特殊的力量下，就像小伙伴们要分开去做不同的事情啦。

一部分变成了li2o，就像一群小伙伴重新组合成了一个新的小团队。

而另外一部分呢，变成了no2和o2。

no2是一种有点特别的气体，o2呢，那可是我们很熟悉的氧气呀，我们呼吸就需要氧气呢。

我给你们讲个小故事吧。

有一个小化学精灵，它看守着lino3这个宝藏。

有一天，火焰精灵来捣乱，给lino3带来了很多热量。

这时候，lino3这个宝藏就开始变化啦。

它里面的一部分元素就像被魔法棒点了一下，变成了li2o这个新的宝藏，另外的元素就变成了像小气泡一样的no2和像我们身边看不见却很重要的空气朋友o2。

我们可以把这个变化写成一个方程式，就像写一个魔法咒语一样。

这个方程式就是2lino3→li2o+2no2+o2。

这个方程式就像是这个魔法变化的说明书，告诉我们lino3受热的时候到底发生了什么神奇的事情。

化学世界里还有很多这样有趣的魔法变化呢。

就像我们搭积木一样，不同的小积木（元素）可以搭成各种各样的形状（物质），在不同的条件下（比如加热、加其他物质等），这些形状又会重新组合，变成新的东西。

所以呀，化学是一个充满惊喜和奇妙的世界，大家可以慢慢去探索哦。

字谜-3——精选推荐

字谜-31、草原下⾯有颗⼼，⼈尔永远不分离，谆谆教诲不⽤说，元旦不是⼀⽉⼀，⼥⼈旁边⼦相随，思念粮⾷没有⽥，青草旁边藏颗⼼。

（谜底：愿你每⽇好⼼情）2、锦⾐⾦服兄⾝着，⼀个⼈有尔相伴，友⼈右⼿⼀竖左⼿⼀点，海边拾贝才快乐！友⼈右⼿⼀竖左⼿⼀点，⼤字踩在踏板上！（祝你发财，发达）3、天鹅飞去鸟归隐，⽩勺到⽼相伴陪，⽬光远视跟定你，⽥下有⼟⽣真情，⼝下有须很⽼诚，⽬中只有你⼀⼈，⼈尔结合幸福⼈。

（谜底：我的眼⾥只有你）4、兄弟⼿拿指⽰牌，指引⼈尔向前⾏，筷⼦不是⽤⽵制，灯光闪烁没有⽕，草莓头上不长草，灭了⽕后没有⽕，想吞⽶饭没有⼝。

（谜底：祝你快乐每⼀天）5、⽰旁站⽴兄长，尔等单⼈想傍，悔之⼼已离去，蚕⾍游离四⽅，⾐袂把⼼交互，掩去烁之⽕光，丽妍少⼥离去，志⼠远⾛他乡。

（谜底：祝你每天快乐开⼼）6、原本⼀⼼凝成爱，⼈尔结合好愉快，⼥⼦完美惹⼈爱，⼀撇⼀捺互⽀持，横竖都是⼀条⼼，⼀⽜⽴地⼜顶天，苹果去叶⽆纷扰，⼥⼦戴帽最美妙。

（谜底：愿你好⼈⼀⽣平安）7、天鹅⼀来鸟全飞，受⼈情意友坐底，尔旁⼀⼈两相伴，⽔头⼀点情深浓，砍去⽊头做成⾈，弯去⼸底⼜成器。

（迷底：我爱你永不变）。

8、青青草原有我⼼，⼼旁有尔不离分，⾟苦岁⽉有勇⼠，⼀⼝薄⽥⽰佳⾳，梅花未绽⽊正息，⽣⼈放⽜去耕耘，笑见百草化云纷。

（谜底：愿你幸福每⼀天）9、原来只因在⼼上，但见⼈来尔站旁，并因你两⽿不闻，如此忐忑上下⾛，⼤海因你⽽⼲涸，⼟地因你少⼗分，春蚕幼⾍⽆影踪。

（谜底：愿你开⼼每⼀天）更多精选专辑：指客⽹ () 栏⽬：猜字谜⼤全10、⽰字旁边⽴长兄，只见尔旁站⼀⼈，诀字⽆⼝却有⼼，烁字灭⽕真欢喜，⼤海⼲涸没有⽔，⼟地为你少⼗分，笑字草帽被摘⾛。

（谜底：祝你快乐每⼀天）11、⼀味蛮⼲少根筋，淅沥⾬落地也湿，⼗字路⼝选横⾏，⼀⼈孤单找个伴，⼥⼦埋头往西⾛，架⼦凭空没有⽊，抽⾛半边终遇⽔。

（谜底：⼆零⼀⼆要加油）12、坏屋⼟墙已被推，腰间亮剑退⽉回，貂⽪做⾐颜⾊美，为家伐⽊屋⾥堆，淮河⼜见⽔⼲涸，龙虾⾮⾍⼝⾥喂，到了⼈边反虺颓。

新视野大学英语3听说教程答案(清晰完整版)

Unit 6
Warming up 1."Get ready" 2.Climate changes are occuring more rapidly and natural disasters are becoming more severe. 3.Books on the subject of survival. Listening Short conversations 1.D 2.D 3.D 4.B 5.C 6.A 7.C 8.C 9.A 10.C Long conversation 1.A 2.C 3.B 4.B 5.D Passage 1.C 2.D 3.C 4.D 5.A Radio program 1.Islamabad 2.a tall Islamabad building 3.the Kashmirian Mountains 4.a heavily mititarized region 5.India
Unit 4
Warming up 1. Writer---Jack Kerouac 2. Artist---Jackson Pollock 3. Musician---Louis Armstrong 4. Symbol--- Statue of Liberty Listening Short conversations 1.B 2.B 3.C 4.D 5.A 6.B 7.D 8.C 9.D 10.A Long conversation 1.C 2.D 3.B 4.B 5.A Passage 1.B 2.A 3.D 4.D 5.B Radio program 1.for decades 2.healthy and aactive lifestyle 3.meet consumer demands

大学思辨英语教程精读3课件Unit 3

Lead in
Text A offers an enlightening analysis of non-verbal communication across different cultures. The authors, Edward T. Hall and Mildred R. Hall, show us that cultural barriers could be overcome by increasing our awareness of cultural differences and by learning about the different ways in which we behave in different societies.
While culture is learned through practice and socialization, Text B provides a counter example to demonstrate the result of non-socialization. As you read the text, you can consider the importance of socialization for you to survive and develop your potential in a particular society.
Critical Thinking
Reading Skills
Learning Objectives
• Reading Skills
• Identify the structure of the text • Identify topic sentences • Use context to understand a new word

新标准大学英语综合教程3 unit3 课文翻译

新标准大学英语综合教程3 unit3 课文翻译Unit3Active reading 1我们是怎样听音乐的我们都按照各自不同的能力来听音乐。

但为了便于分析，如果把听的整个过程分成几个组成部分，那么这个过程会更清晰一些。

从某种意义上来说，我们听音乐有三个不同的层次。

由于缺乏更好的术语，我们姑且把它们命名为：（1）感官层次；（2）表现层次；（3）纯音乐层次。

把听的过程机械地分割为以上三个假想的层次，唯一的好处是让我们更清楚地了解自己是怎样听音乐的。

听音乐最简单的方式是为了去获取乐声带来的纯粹的愉悦感，这是音乐的感官层次。

在这个层次上，我们只是听音乐，不做任何思考。

我们打开收音机，一边做着其他的事情，一边心不在焉地沉浸在音乐中。

乐声本身的魅力带我们进入一种无需思考的美妙心境。

令人意外的是，许多自认为是合格的音乐爱好者在听音乐时过多地使用了这一层次。

他们去听音乐会是为了忘却自我。

他们把音乐当成一种慰藉，一种逃避，由此他们进入了一个可以忘却日常生活的理想世界。

当然，他们也没有在思考音乐。

音乐允许他们离开现实，到另一个地方去做梦，因为音乐而做梦，做有关音乐的梦，却从没有真正欣赏过音乐。

的确，乐声的魅力是一种强大而原始的力量，但是你不该让它占据你过多的兴趣空间。

感官层次是音乐的一个重要层次，非常重要，但并不是音乐的全部。

音乐存在的第二个层次就是我所说的表现层次。

一提到这个问题，我们马上就进入到一个颇具争议的领域。

作曲家总是设法避开有关音乐表现方面的讨论。

斯特拉温斯基不是曾经声称他的音乐是一个“物体”，是一件有自我生命的“东西”，除了纯音乐性的存在之外没有任何别的含意吗？斯特拉温斯基这种不妥协的态度可能源于这样的一个事实：有那么多的人尝试着从众多的音乐作品中读出完全不同的含意。

确实，要准确地说出一部音乐作品的含意已经很难了，要肯定并确定地说出来，还要使每个人对你的解释都感到满意，是难上加难。

但我们不该因此走到另一个极端，不能去剥夺音乐“表现”的权利。

Unit3 Reading3

"Gabby, You're Sooo Skinny""加贝，你太瘦了"I am a straight-A student.我是优等生。

I am very involved in school activities and considered a "very together”teenager.我积极参与学校活动，被认为是一个“非常合群”的青少年。

Or at least, I was It all started innocently enough.或者至少，我是这一切都开始得足够天真。

I weighed about 125 pounds. 我重约125磅。

I was not fat, but felt I could stand to lose a few pounds. 我并不胖，但我觉得我可以减几磅。

A friend of mine had gone on a health kick and was getting great results from it -she was losing weight, she felt better and her friends were telling her how great she looked I wanted to feel that way, too.我的一个朋友参加了一个健康计划，并取得了很好的效果——她的体重减轻了，她感觉好多了，她的朋友们告诉她，她看起来很好——我也想有那样的感觉。

I began exercising and eating healthy snacks instead of the usual Coke and-chips marathon watching the boob tube.我开始锻炼，吃健康的零食，而不是像往常那样马拉松式地看电视。

Within a couple of weeks I had lost weight, I was feeling good, I cared more about what I wore and started feeling attractive in a way I had not experienced before.几周后，我的体重减轻了，我感觉很好，我更关心自己的穿着，我开始以一种从未有过的方式感到自己很有吸引力。

3在生活中可以表示什么

3在生活中可以表示什么
在生活中，数字3可以表示许多不同的事物和概念。

从数学到文化，从宗教到
哲学，数字3都扮演着重要的角色。

让我们来看看在生活中，数字3可以表示什么。

首先，数字3在数学中代表着一个重要的概念，三角形。

三角形是几何学中的
基本形状之一，它由三条边和三个角组成。

三角形在建筑、设计和工程中都有着重要的应用，因此数字3在数学中具有重要的意义。

其次，数字3在文化和宗教中也有着特殊的含义。

在基督教中，三位一体是一
个重要的概念，代表着上帝的三位形态，父、子、圣灵。

在许多其他宗教和文化中，数字3也代表着神圣的力量和完美的平衡。

最后，数字3在日常生活中也有着特殊的意义。

许多人认为“第三次正是魅力
所在”，这意味着第三次尝试通常会带来成功。

此外，人们常常将事物分为三个部分，比如早、中、晚；过去、现在、未来等等。

总的来说，数字3在生活中有着丰富的含义和应用。

无论是在数学、文化、宗
教还是日常生活中，数字3都扮演着重要的角色，代表着力量、平衡和完美。

让我们珍惜数字3，体会它在生活中的深刻意义。

3 三级配电

第三节供配电系统与配电装置一、三级配电系统施工现场用电工程的基本供配电系统应当按三级设置，即采用三级配电。

（一）三级配电系统基本结构三级配电是指施工现场从电源进线开始至用电设备之间，应经过三级配电装置配送电力，即由总配电箱（一级箱）或配电室的配电柜开始，依次经过分配电箱（二级箱），开关箱（三级箱）到用电设备。

这种分三个层次逐级配送电力的系统就称为三级配电系统。

配电系统采用放射式和树干式，它的基本结构如以下框图。

（二）系统的设置原则三级配电系统应遵守四项基本原则：即分级分路原则，动照分设原则，压缩配电间距原则，环境安全原则。

1、分级分路(1) 从一级总配电箱（配电柜）向二级分配电箱配电可以分路，即一个总配电箱（配电柜）可以分若干分路向若干分配电箱配电；(2) 从二级分配电箱向三级开关箱配电同样可以分路，即一个分配电箱可以分若干支路向若干开关箱配电。

(3) 从三级开关箱向用电设备配电实行“一机一闸”制，不存在分路问题。

即每一开关箱只能连接控制一台与其相关的用电设备（含插座）。

按照分级分路原则的要求，在三级配电系统中，任何用电设备都不得越级配电，总配电箱和分配电箱不得挂接其它任何设备，否则，三级配电系统的结构形式和分级分路原则将被破坏。

2、动照分设动力配电箱与照明分配电箱宜分别设置。

当动力和照明合并设置于同一配电箱时，动力和照明应分路配电，动力和照明开关箱必须分别设置，不存在共箱分路设置问题。

3、压缩配电间距压缩配电间距原则是指各配电箱、开关箱之间的距离应尽量缩短。

总配电箱应设在靠近电源的区域，分配电箱应设在用电设备或负荷相对集中的区域，分配电箱与开关箱的距离不得超过30m，开关箱与其控制的固定式用电设备的水平距离不宜超过3m。

4、环境安全环境安全是指配电系统对其设置和运行环境的安全要求，包括三种环境要求：使用环境、维修环境和防护环境。

要求如下:(1) 使用、维修环境：满足压缩配电间距原则。

配电箱、开关箱周围应有足够二人同时工作的空间和通道，不得堆放任何妨碍操作、维修的物品，不得有灌木、杂草。

中国古代数字3的含义

中国古代数字3的含义
中国古代数字3的含义，可以用中文写成："三"代表了很多重要
意义。

首先，它象征着天、地、人的统一，体现了宇宙的完整性和和谐。

其次，"三"也代表了生命的循环，包括过去、现在和未来的连续性。

此外，"三"也代表了三才（天、地、人）和三光（日、月、星），表达了自然的规律性和秩序。

古人还将"三"作为吉祥和幸运的象征，
认为它代表着吉祥、安宁和福气。

在文化传统中，"三"也被广泛应用
于许多方面，例如三才图、三角梅等。

总的来说，中国古代数字3具
有丰富的内涵和文化意义。

3#塔吊基础方案

ⅲ与3的用法

3在生活中可以表示什么

3的寓意和象征

新标准大学英语（第二版）视听说3听力原文及选择题整理

高清电影Ed2k链接地址3

根3是无理数的证明

3的数字代表什么意思有什么含义

由三个不同的英文字母和三个不同的阿拉伯数字组成一个

《听力教程3》听力原文及参考答案

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