韦博BI-BA口语演讲稿
韦博英文演讲材料(BI级别)PPT
projectiles shot
• Guns were created to kill
If it is in china
How big a gun do you need?
AK47 Beretta 92F
Barretta M107
M4A1
Gatling M134
If it is in china
December 14, 2012, Sandy Hook Elementary School, Newtown, Connecticut .
Why we need guns?
Howard
Armed America
——Kyle Caseth Joe Jim
The book examines who is a gun owner, and their reasons for owing a gun.
Wayne, Jun 19th, 2013
Lord of War
There are over 550 million firearms in worldwide circulation. That‘s
one firearm for
every 12 people on the planet. The only question is, how do we arm the other 11?
• impose a much greater risk to
their lives than an intruder • Our govt is set up in such a
• hunting and target shooting.
• We are a free society, we can choose for ourselves. • Guns are a right. • Self-reliance. Independence from a (in most cases) fully functional and capable police department.
英语卓越口才演讲稿范文
Ladies and gentlemen,Good morning/afternoon/evening. It is my great honor to stand before you today and share with you the incredible power of eloquence. The ability to express oneself articulately and persuasively is a gift that can transform lives, inspire nations, and shape the course of history. In this speech, I will delve into the significance of eloquence, its benefits, and how we can all cultivate this remarkable skill.Firstly, let us acknowledge the importance of eloquence. The world we live in is a testament to the power of words. Great leaders, influential thinkers, and remarkable individuals have all left their mark on history through their ability to communicate effectively. Whether it is a politician addressing a crowd, a lawyer arguing a case, or a teacher educating a student, eloquence plays a pivotal role in shaping the outcome of situations.One of the most significant benefits of eloquence is the ability to influence others. Words have the power to inspire, motivate, and persuade. When we communicate with clarity and conviction, we can ignite a spark within others, encouraging them to pursue their dreams, fightfor their beliefs, and contribute to the betterment of society. Eloquence can be a catalyst for positive change, as it allows us to convey our ideas and values with conviction and passion.Furthermore, eloquence is a tool for personal growth. The process of refining our language and thought processes enhances our cognitive abilities, boosts our confidence, and elevates our self-esteem. When we are able to articulate our thoughts and emotions effectively, we gain a sense of control over our lives and our relationships. This self-assurance enables us to navigate the complexities of the world with poise and grace.To cultivate eloquence, we must first embrace the importance of continuous learning. Reading widely, exploring different perspectives, and engaging in meaningful conversations are essential steps in broadening our vocabulary and deepening our understanding of the world. We must also practice our speaking skills regularly. This can beachieved by joining clubs such as debate teams, Toastmasters, or simply by practicing in front of a mirror or recording ourselves.Another crucial aspect of eloquence is the art of listening. A great speaker is not just someone who talks well but also someone who listens attentively to others. By understanding the needs and concerns of our audience, we can tailor our message to resonate with them on a deeper level. Empathy and active listening are key ingredients in crafting a compelling and persuasive speech.In conclusion, the power of eloquence cannot be overstated. It is askill that can change lives, inspire nations, and shape the course of history. By embracing the importance of continuous learning, practicing our speaking skills, and cultivating empathy, we can all unlock the potential within us and become masterful communicators.Ladies and gentlemen, let us not underestimate the power of words. Let us strive to be eloquent, for in the end, it is our ability to communicate effectively that will define our legacy. Thank you.。
英文口才演讲稿范文
Ladies and gentlemen,Good morning/afternoon/evening. It is my great honor to stand before you today to deliver a speech on a topic that is both universal and deeply personal to each of us: the art of embracing change for a brighter future.In the tapestry of life, change is the only constant. From the moment we are born, we are subjected to a series of changes that shape our experiences, our beliefs, and our very identity. Yet, despite its omnipresence, change remains a challenging concept for many of us to embrace.Why is that? Perhaps it is because we are creatures of habit, comfortable in the familiar, and afraid of the unknown. We cling to the security of the past, even when it is holding us back from the opportunities that the future has to offer. But let us not forget that the only thing that is certain about change is that it is inevitable. The question, then, is not whether we will change, but how we will change.To embrace change, we must first acknowledge its inevitability. Change is not a threat; it is an opportunity. It is the catalyst for growth, innovation, and progress. By embracing change, we open ourselves up to new possibilities, to learning, and to self-improvement.Consider the world we live in today. Technology has transformed the way we communicate, work, and live. The Internet has connected us like never before, and social media has brought us closer to people we have never met. These changes have not been without their challenges, but they have also brought about incredible advancements and a wealth of knowledge at our fingertips.As we look to the future, it is clear that change will continue to accelerate. Artificial intelligence, renewable energy, and space exploration are just a few of the areas where we are on the brink of monumental change. To thrive in this future, we must be adaptable and willing to learn.Here are a few steps we can take to embrace change:1. Cultivate a growth mindset: Embrace the belief that you can grow and develop throughout your life. View challenges as opportunities for learning and growth rather than obstacles to be overcome.2. Be open to new experiences: Step out of your comfort zone and explore the unknown. New experiences can broaden your horizons and challenge your preconceived notions.3. Develop resilience: Change often brings with it uncertainty and discomfort. By building resilience, you can navigate through these challenges with strength and determination.4. Foster a sense of curiosity: Stay curious about the world around you. Ask questions, seek knowledge, and never stop learning.5. Surround yourself with positive influences: Be surrounded by people who support your journey and encourage you to embrace change.In conclusion, embracing change is not an easy task, but it is a necessary one. By understanding that change is inevitable, and by actively seeking to adapt and grow, we can create a brighter future for ourselves and for generations to come.Thank you for your attention, and let us all strive to be change-makers, not change-resisters. Together, we can shape a world that is filled with endless possibilities and boundless potential.God bless you all, and may we all embrace the change that will lead us to a brighter tomorrow.。
比尔盖茨演讲稿
比尔盖茨演讲稿英文回答：Thank you so much for having me. I'm Bill Gates, andI'm here today to talk to you about the future of technology and how it can help us solve some of the world's biggest challenges.I've been working in the tech industry for over 40 years, and I've seen firsthand how technology has the power to transform lives. When I started out, personal computers were still a novelty. Today, they're an essential part of our lives. We use them to stay connected with friends and family, to learn new things, to be entertained, and to get work done.Technology is also changing the way we work. In the past, most people worked in offices. Today, more and more people are working remotely. This is thanks in part to the rise of cloud computing, which allows us to access ourfiles and applications from anywhere.Technology is also having a major impact on the way we learn. In the past, most people learned in traditional classrooms. Today, there are many more opportunities to learn online. This is thanks in part to the rise of massive open online courses (MOOCs), which allow anyone to take courses from top universities for free.Of course, technology is not without its challenges. One of the biggest challenges is the digital divide. This is the gap between those who have access to technology and those who don't. The digital divide is a serious problem because it can prevent people from accessing education, healthcare, and other essential services.Another challenge is the issue of privacy. As we become more and more connected, we're also sharing more and more of our personal information. This information can be used to track our movements, target us with advertising, and even manipulate our behavior.Despite these challenges, I believe that technology has the potential to make the world a better place. If we use technology wisely, we can solve some of the world's biggest challenges, such as poverty, disease, and climate change.I'm optimistic about the future of technology. Ibelieve that it has the power to make the world a more just, equitable, and sustainable place.中文回答：非常感谢各位邀请我来演讲。
韦博英语作文
韦博英语作文Learning English has become an essential skill in today's globalized world. It is not only the language ofinternational business and diplomacy but also a gateway to a vast array of knowledge and culture. Here are some compelling reasons why mastering the English language is beneficial:1. Global Communication: English is the most widely spoken second language in the world. Being proficient in English allows you to communicate with people from diverse backgrounds and cultures, bridging the gap between different nations.2. Educational Opportunities: Many of the world's top universities and educational institutions use English astheir medium of instruction. Proficiency in English opens doors to higher education and research opportunities.3. Career Advancement: In the professional world, English is often the language of choice for international business and collaboration. Being able to speak and write in English can significantly enhance your career prospects.4. Access to Information: A vast majority of the internet's content is in English. Learning English enables you to access a wealth of information, from academic research to entertainment.5. Cultural Exchange: English is the language of many forms of media, including books, films, and music. Learning English allows you to appreciate and understand the cultural nuances of these media.6. Travel: English is widely understood in many parts of the world, making it easier to travel and explore different countries without the language barrier.7. Personal Growth: Learning a new language is a challenge that can lead to personal growth. It enhances cognitive abilities, improves memory, and can even delay the onset of age-related cognitive decline.In conclusion, learning English is more than just acquiring a language; it is a key to unlock a world of opportunities, knowledge, and cultural experiences. It is a skill that can enrich one's life in numerous ways.。
大学英语口才演讲稿范文(3篇)
第1篇Ladies and Gentlemen,Good morning/afternoon/evening. It is a great honor to stand before you today to share my thoughts on a topic that is both crucial and universally relevant: the power of communication in the global village. As we navigate through an era of rapid technological advancement and increasing interconnectedness, the ability to communicate effectively has become more important than ever. Let us embark on a journey to explore the significance of communication and how it shapes our lives and the world around us.Introduction:In today's interconnected world, we find ourselves living in what is often referred to as the global village. This term, coined by theBritish scholar, Marshall McLuhan, highlights the shrinking distances and the growing sense of community among people from different cultures and backgrounds. Communication, as the bridge that connects individuals, plays a pivotal role in this global village. It enables us to share ideas, foster understanding, and collaborate towards a common goal.The Significance of Communication:1. Building Relationships:Communication is the foundation of all human relationships. Whether it is with our family, friends, colleagues, or even strangers, the ability to express ourselves and understand others is essential. Effective communication helps us build strong, lasting relationships based ontrust and mutual respect.2. Enhancing Understanding:In the global village, we encounter diverse cultures, beliefs, and perspectives. Communication acts as a tool that allows us to understand and appreciate these differences. By engaging in meaningful conversations, we can bridge the gaps between cultures and promote harmony and tolerance.3. Facilitating Collaboration:The world today is characterized by complex challenges that require collective efforts to address. Communication is the key to collaboration, as it enables individuals and organizations to share their expertise, resources, and ideas. Through effective communication, we can work together to find innovative solutions to global issues such as climate change, poverty, and inequality.4. Personal Growth:Communication is not only essential for social interactions but also for personal growth. It allows us to express our thoughts, emotions, and aspirations, which is crucial for self-awareness and personal development. Moreover, effective communication skills enhance ourability to influence others, negotiate, and resolve conflicts.The Challenges of Communication:Despite its importance, communication faces several challenges in the global village. These include:1. Language Barriers:With the vast number of languages spoken worldwide, language barrierscan hinder effective communication. While translation tools have made it easier to overcome this challenge, they may not always capture the nuances and cultural contexts of conversations.2. Cultural Differences:Cultural norms, values, and communication styles vary greatly across the globe. Misunderstandings can arise when individuals fail to recognizeand respect these differences. Overcoming cultural barriers requires sensitivity, empathy, and a willingness to learn.3. Technological Challenges:While technology has revolutionized the way we communicate, it also presents challenges. The overuse of digital communication platforms canlead to reduced face-to-face interactions, which are crucial forbuilding deep, meaningful connections.Strategies for Effective Communication:To harness the power of communication in the global village, we can adopt the following strategies:1. Develop Cultural Awareness:By understanding and respecting cultural differences, we can communicate more effectively and avoid misunderstandings. This involves being open-minded, curious, and willing to learn about other cultures.2. Enhance Language Skills:Learning a second language can break down language barriers and enable us to connect with a wider audience. Additionally, being familiar with different linguistic nuances can help us communicate more accurately.3. Practice Active Listening:Active listening involves fully concentrating on the speaker, understanding their message, and responding thoughtfully. This approach fosters better understanding and builds stronger relationships.4. Utilize Technology Wisely:While technology has its downsides, it also offers numerousopportunities for communication. We should leverage digital tools to connect with others, while also ensuring that we maintain a balance between online and offline interactions.Conclusion:In conclusion, the power of communication in the global village cannot be overstated. It is the glue that holds our interconnected world together, enabling us to build relationships, enhance understanding, and collaborate towards a better future. As we navigate the complexities of this global village, let us embrace the power of communication andstrive to be effective, empathetic, and culturally sensitivecommunicators. Together, we can create a more inclusive and understanding world.Thank you for your attention.第2篇Ladies and Gentlemen,Good morning/afternoon. It is my great honor to stand before you today to deliver a speech on the topic of "Embracing the Power of Communication in the Age of Globalization." In an era where technology has bridged the gaps between nations and cultures, the importance of effective communication cannot be overstated. Let us embark on this journey of exploration, understanding, and appreciation of the art of communication.Introduction: The Global VillageWe live in an era often referred to as the "global village." The interconnectedness of our world has been accelerated by advancements in technology, particularly the internet. People from different corners of the globe can now communicate instantaneously, share ideas, and collaborate on projects without ever leaving their homes. This interconnectedness has opened up new opportunities for learning, growth, and cultural exchange.The Role of Communication in GlobalizationCommunication is the lifeblood of globalization. It is the bridge that connects diverse cultures, the tool that fosters mutual understanding, and the means through which we can address the challenges that come with our increasingly interconnected world.1. Cultural Exchange: Effective communication allows us to appreciate and learn from other cultures. It helps us break down stereotypes and biases, fostering a more inclusive and harmonious global community.2. Economic Growth: In today's global marketplace, the ability to communicate effectively is crucial for businesses to succeed. It enablescompanies to market their products and services to a global audience, attract international talent, and collaborate with partners across borders.3. Solving Global Issues: Many of the world's most pressing issues, such as climate change, poverty, and health crises, require international cooperation. Communication is the key to building alliances, sharing resources, and implementing effective solutions.The Challenges of Global CommunicationWhile the benefits of global communication are clear, it also presents several challenges:1. Language Barriers: Different languages can create barriers to understanding and collaboration. Learning a second or third language is essential for overcoming this challenge.2. Cultural Differences: What may be considered polite or appropriate in one culture could be offensive in another. Understanding cultural nuances is crucial for effective communication.3. Digital Divide: Not everyone has access to the technology that enables global communication. This divide can exacerbate existing inequalities and hinder progress.Embracing the Power of CommunicationTo harness the power of communication in the age of globalization, we must:1. Develop Strong Language Skills: Learning a second or third language will not only enhance our ability to communicate with others but also enrich our own cultural experiences.2. Cultivate Cultural Awareness: Understanding and appreciatingdifferent cultures will help us bridge the gap between them and foster mutual respect.3. Embrace Digital Literacy: In a world where technology is a key driver of communication, being digitally literate is essential. We must stayinformed about new tools and platforms that can facilitate global communication.4. Promote Inclusivity: We must work towards ensuring that everyone has access to the tools and resources they need to participate in the global conversation.Conclusion: The Future of CommunicationAs we look to the future, it is clear that the power of communicationwill only continue to grow. By embracing the art of communication, wecan build a more interconnected, inclusive, and sustainable world. Letus all strive to become effective communicators, not just for our own benefit, but for the benefit of our global community.In closing, I would like to leave you with a quote from the great philosopher Confucius: "The essence of knowledge is to know what you do not know." Let us use our communication skills to expand our knowledge, understand others, and create a better future for all.Thank you for your attention, and I welcome any questions you may have.End of Speech第3篇Ladies and Gentlemen,Good morning/afternoon. It is an honor to stand before you today and share with you my thoughts on a subject that is deeply intertwined with our lives both personally and professionally: the power of communication. As we navigate through the complexities of university life and preparefor the challenges of the future, the ability to communicate effectively becomes not just a skill, but a cornerstone of our success.Let us begin by acknowledging that communication is a universal language. It transcends cultural, linguistic, and geographical boundaries. Whether we are expressing our emotions, sharing our ideas, or collaborating with others, communication is the medium through which we connect with the world. In this speech, I will explore the importance of communication,the challenges we face in its practice, and the strategies we can employ to enhance our communication skills.Firstly, let us consider the importance of communication. In the realmof personal relationships, effective communication fosters understanding, trust, and empathy. It allows us to express our needs, resolve conflicts, and build meaningful connections with others. In the professional sphere, communication is the lifeblood of success. It is through our ability to convey our ideas, negotiate deals, and lead teams that we achieve our career aspirations.However, the path to effective communication is not without its challenges. Language barriers, cultural differences, and thecomplexities of human emotions can create obstacles that hinder ourability to communicate effectively. Moreover, in today's digital age, we often find ourselves communicating through screens, which can diminish the depth and authenticity of our interactions.To overcome these challenges, we must first recognize the importance of active listening. Active listening is not merely about hearing the words spoken, but about understanding the emotions, intentions, and perspectives behind them. It requires us to be fully present, to engage with the speaker, and to respond thoughtfully. By practicing active listening, we can bridge the gaps created by language and cultural differences, and foster genuine connections.Another crucial aspect of effective communication is clarity. Clarity of thought and expression is essential for conveying our ideas conciselyand coherently. We must learn to organize our thoughts, use clear and concise language, and adapt our communication style to our audience. Whether we are presenting a project, delivering a speech, or engaging in a conversation, clarity is the key to ensuring that our message is understood.Non-verbal communication also plays a significant role in the effectiveness of our interactions. Our body language, facial expressions, and gestures can all convey messages that are often louder than the words we speak. Therefore, it is important to be aware of our non-verbalcues and to use them to reinforce our verbal messages. For instance, maintaining eye contact, using open gestures, and displaying a confident posture can all enhance our communication skills.In addition to these strategies, it is essential to develop our empathy and emotional intelligence. Empathy allows us to understand and sharethe feelings of others, which is crucial for building rapport and trust. Emotional intelligence, on the other hand, helps us manage our own emotions and those of others, enabling us to navigate complex social situations with grace and effectiveness.Now, let us delve into the practical steps we can take to enhance our communication skills:1. Read widely and diversely: By reading books, articles, and other materials from various genres and cultures, we can expand our vocabulary, learn new ways of expressing ourselves, and gain insight into different perspectives.2. Practice public speaking: Joining a speech club or participating in debate competitions can help us develop our public speaking skills,build confidence, and learn to engage with an audience.3. Engage in reflective writing: Keeping a journal or writing reflective essays can help us organize our thoughts, clarify our ideas, and express ourselves more effectively.4. Seek feedback: Asking for feedback from peers, mentors, andinstructors can provide us with valuable insights into our communication style and areas for improvement.5. Embrace cultural diversity: Actively seeking out opportunities to interact with people from different backgrounds can broaden our horizons and enhance our ability to communicate across cultures.In conclusion, the power of communication is a gift that can shape our personal and professional lives. By embracing the principles of active listening, clarity, non-verbal communication, empathy, and emotional intelligence, we can enhance our communication skills and become moreeffective in our interactions with others. As we navigate the journey of university life and prepare for the future, let us remember that communication is not just a tool, but a bridge that connects us to the world and to one another.Thank you for your attention, and I invite you to join me in this journey of personal and professional excellence, where the power of communication will guide us to new heights.[The End]Note: This speech is a general template and can be customized based on the specific requirements and audience. The word count is approximately 1500 words.。
Bill Gates2010TED演讲稿
Bill Gates2010年TED演讲稿I'm going to talk today about energy and climate.And that might seem a bit surprising becausemy full-time work at the foundation is mostly about vaccines and seeds,about the things that we need to invent and deliverto help the poorest two billion live better lives.But energy and climate are extremely important to these people,in fact, more important than to anyone else on the planet.The climate getting worse, means that many years their crops won't grow. There will be too much rain, not enough rain.Things will change in waysthat their fragile environment simply can't support.And that leads to starvation. It leads to uncertainty. It leads to unrest.So, the climate changes will be terrible for them.Also, the price of energy is very important to them.In fact, if you could pick just one thing to lower the price of,to reduce poverty, by far, you would pick energy.Now, the price of energy has come down over time.Really, advanced civilization is based on advances in energy.The coal revolution fueled the industrial revolution,and, even in the 1900's we've seen a very rapid decline in the price of electricity, and that's why we have refrigerators, air-conditioning,we can make modern materials and do so many things.And so, we're in a wonderful situation with electricity in the rich world. But, as we make it cheaper -- and let's go for making it twice as cheap -- we need to meet a new constraint,and that constraint has to do with CO2.CO2 is warming the planet,and the equation on CO2 is actually a very straightforward one.If you sum up the CO2 that gets emitted,that leads to a temperature increase,and that temperature increase leads to some very negative effects.The effects on the weather and, perhaps worse, the indirect effects,in that the natural ecosystems can't adjust to these rapid changes,and so you get ecosystem collapses.Now, the exact amount of how you mapfrom a certain increase of CO2 to what temperature will beand where the positive feedbacks are,there's some uncertainty there, but not very much.And there's certainly uncertainty about how bad those effects will be, but they will be extremely bad.I asked the top scientists on this several times,do we really have to get down to near zero?Can't we just cut it in half or a quarter?And the answer is that, until we get near to zero,the temperature will continue to rise.And so that's a big challenge.It's very different than saying we're a 12 ft high truck trying to get under a 10 ft bridge, and we can just sort of squeeze under.This is something that has to get to zero.Now, we put out a lot of carbon dioxide every year,over 26 billion tons.For each American, it's about 20 tons.For people in poor countries, it's less than one ton.It's an average of about five tons for everyone on the planet.And, somehow, we have to make changesthat will bring that down to zero.It's been constantly going up.It's only various economic changes that have even flattened it at all,so we have to go from rapidly risingto falling, and falling all the way to zero.This equation has four factors.A little bit of multiplication.So, you've got a thing on the left, CO2, that you want to get to zero,and that's going to be based on the number of people,the services each person's using on average,the energy on average for each service,and the CO2 being put out per unit of energy.So, let's look at each one of theseand see how we can get this down to zero.Probably, one of these numbers is going to have to get pretty near to zero. Now that's back from high school algebra,but let's take a look.First we've got population.Now, the world today has 6.8 billion people.That's headed up to about nine billion.Now, if we do a really great job on new vaccines,health care, reproductive health services,we could lower that by, perhaps, 10 or 15 percent,but there we see an increase of about 1.3.The second factor is the services we use.This encompasses everything,the food we eat, clothing, TV, heating.These are very good things,and getting rid of poverty means providing these servicesto almost everyone on the planet.And it's a great thing for this number to go up.In the rich world, perhaps the top one billion,we probably could cut back and use less,but every year, this number, on average, is going to go up,and so, over all, that will more than doublethe services delivered per person.Here we have a very basic service.Do you have lighting in your house to be able to read your homework, and, in fact, these kids don't, so they're going outand reading their school work under the street lamps.Now, efficiency, E, the energy for each service,here, finally we have some good news.We have something that's not going up.Through various inventions and new ways of doing lighting,through different types of cars, different ways of building buildings.there are a lot of services where you can bringthe energy for that service down quite substantially,some individual services even, bring it down by 90 percent.There are other services like how we make fertilizer,or how we do air transport,where the rooms for improvement are far, far less.And so, overall here, if we're optimistic,we may get a reduction of a factor of three to even, perhaps, a factor of six. But for these first three factors now,we've gone from 26 billion to, at best, maybe 13 billion tons,and that just won't cut it.So let's look at this fourth factor --this is going to be a key one --and this is the amount of CO2 put out per each unit of energy.And so the question is, can you actually get that to zero?If you burn coal, no.If you burn natural gas, no.Almost every way we make electricity today,except for the emerging renewables and nuclear, puts out CO2.And so, what we're going to have to do at a global scale,is create a new system.And so, we need energy miracles.Now, when I use the term miracle, I don't mean something that's impossible. The microprocessor is a miracle. The personal computer is a miracle.The internet and its services are a miracle.So, the people here have participated in the creation of many miracles. Usually, we don't have a deadline,where you have to get the miracle by a certain date.Usually, you just kind of stand by, and some come along, some don't.This is a case where we actually have to drive full speedand get a miracle in a pretty tight time line.Now, I thought, how could I really capture this?Is there some kind of natural illustration,some demonstration that would grab people's imagination here?I thought back to a year ago when I brought mosquitos,and somehow people enjoyed that.(Laughter)It really got them involved in the idea of,you know, there are people who live with mosquitos.So, with energy, all I could come up with is this.I decided that releasing fireflieswould be my contribution to the environment here this year.So here we have some natural fireflies.I'm told they don't bite, in fact, they might not even leave that jar. (Laughter)Now, there's all sorts gimmicky solutions like that one,but they don't really add up to much.We need solutions, either one or several,that have unbelievable scaleand unbelievable reliability,and, although there's many directions people are seeking,I really only see five that can achieve the big numbers.I've left out tide, geothermal, fusion, biofuels.Those may make some contribution,and if they can do better than I expect, so much the better,but my key point hereis that we're going to have to work on each of these five,and we can't give up any of them because they look daunting,because they all have significant challenges.Let's look first at the burning fossil fuels,either burning coal or burning natural gas.What you need to do there, seems like it might be simple, but it's not, and that's to take all the CO2, after you've burned it, going out the flue, pressurize it, create a liquid, put it somewhere,and hope it stays there.Now we have some pilot things that do this at the 60 to 80 percent level, but getting up to that full percentage, that will be very tricky,and agreeing on where these CO2 quantities should be put will be hard, but the toughest one here is this long term issue.Who's going to be sure?Who's going to guarantee something that is literally billions of times larger than any type of waste you think of in terms of nuclear or other things? This is a lot of volume.So that's a tough one.Next, would be nuclear.It also has three big problems.Cost, particularly in highly regulated countries, is high.The issue of the safety, really feeling good about nothing could go wrong, that, even though you have these human operators,that the fuel doesn't get used for weapons.And then what do you do with the waste?And, although it's not very large, there are a lot of concerns about that. People need to feel good about it.So three very tough problems that might be solvable,and so, should be worked on.The last three of the five, I've grouped together.These are what people often refer to as the renewable sources.And they actually -- although it's great they don't require fuel --they have some disadvantages.One is that the density of energy gathered in these technologiesis dramatically less than a power plant.This is energy farming, so you're talking about many square miles, thousands of time more area than you think of as a normal energy plant. Also, these are intermittent sources.The sun doesn't shine all day, it doesn't shine every day,and, likewise, the wind doesn't blow all the time.And so, if you depend on these sources,you have to have some way of getting the energyduring those time periods that it's not available.So, we've got big cost challenges here.We have transmission challenges.For example, say this energy source is outside your country,you not only need the technology,but you have to deal with the risk of the energy coming from elsewhere. And, finally, this storage problem.And, to dimensionalize this, I went through and looked atall the types of batteries that get made,for cars, for computers, for phones, for flashlights, for everything,and compared that to the amount of electrical energy the world uses, and what I found is that all the batteries we make nowcould store less than 10 minutes of all the energy.And so, in fact, we need a big breakthrough here,something that's going to be a factor of a hundred betterthan the approaches we have now.It's not impossible, but it's not a very easy thing.Now, this shows up when you try to get the intermittent sourceto be above, say, 20 to 30 percent of what you're using.If you're counting on it for 100 percent,you need an incredible miracle battery.Now, how we're going to go forward on this: what's the right approach?Is it a Manhattan project? What's the thing that can get us there?Well, we need lots of companies working on this, hundreds.In each of these five paths, we need at least a hundred people.And a lot of them, you'll look at and say they're crazy. That's good.And, I think, here in the TED group,we have many people who are already pursuing this.Bill Gross has several companies, including one called e-Solarthat has some great solar thermal technologies.Vinod Khosla's investing in dozens of companiesthat are doing great things and have interesting possibilities,and I'm trying to help back that.Nathan Myhrvold and I actually are backing a companythat, perhaps surprisingly, is actually taking the nuclear approach.There are some innovations in nuclear: modular, liquid.And innovation really stopped in this industry quite some ago,so the idea that there's some good ideas laying around is not all that surprising. The idea of Terrapower is that, instead of burning a part of uranium,the one percent, which is the U235,we decided, let's burn the 99 percent, the U238.It is kind of a crazy idea.In fact, people had talked about it for a long time,but they could never simulate properly whether it would work or not,and so it's through the advent of modern supercomputersthat now you can simulate and see that, yes,with the right material's approach, this looks like it would work.And, because you're burning that 99 percent,you have greatly improved cost profile.You actually burn up the waste, and you can actually use as fuelall the leftover waste from today's reactors.So, instead of worrying about them, you just take that. It's a great thing. It breathes this uranium as it goes along. So it's kind of like a candle. You can see it's a log there, often referred to as a traveling wave reactor. In terms of fuel, this really solves the problem.I've got a picture here of a place in Kentucky.This is the left over, the 99 percent,where they've taken out the part they burn now,so it's called depleted uranium.That would power the U.S. for hundreds of years.And, simply by filtering sea water in an inexpensive process,you'd have enough fuel for the entire lifetime of the rest of the planet. So, you know, it's got lots of challenges ahead,but it is an example of the many hundreds and hundreds of ideasthat we need to move forward.So let's think, how should we measure ourselves?What should our report card look like?Well, let's go out to where we really need to get,and then look at the intermediate.For 2050, you've heard many people talk about this 80 percent reduction. That really is very important, that we get there.And that 20 percent will be used up by things going on in poor countries, still some agriculture.Hopefully, we will have cleaned up forestry, cement.So, to get to that 80 percent,the developed countries, including countries like China,will have had to switch their electricity generation altogether.So, the other grade is, are we deploying this zero-emission technology, have we deployed it in all the developed countriesand we're in the process of getting it elsewhere.That's super important.That's a key element of making that report card.So, backing up from there, what should the 2020 report card look like? Well, again, it should have the two elements.We should go through these efficiency measures to start getting reductions. The less we emit, the less that sum will be of CO2,and, therefore, the less the temperature.But in some ways, the grade we get there,doing things that don't get us all the way to the big reductions,is only equally, or maybe even slightly less, important than the other, which is the piece of innovation on these breakthroughs.These breakthroughs, we need to move those at full speed,and we can measure that in terms of companies,pilot projects, regulatory things that have been changed.There's a lot of great books that have been written about this.The Al Gore book, "Our Choice"and the David McKay book, "Sustainable Energy Without the Hot Air." They really go through it and create a frameworkthat this can be discussed broadly,because we need broad backing for this.There's a lot that has to come together.So this is a wish.It's a very concrete wish that we invent this technology.If you gave me only one wish for the next 50 years,I could pick who's president,I could pick a vaccine, which is something I love,or I could pick that this thingthat's half the cost with no CO2 gets invented,this is the wish I would pick.This is the one with the greatest impact.If we don't get this wish,the division between the people who think short term and long term will be terrible, between the U.S. and China, between poor countries and rich,and most of all the lives of those two billion will be far worse.So, what do we have to do?What am I appealing to you to step forward and drive?We need to go for more research funding.When countries get together in places like Copenhagen,they shouldn't just discuss the CO2.They should discuss this innovation agenda,and you'd be stunned at the ridiculously low levels of spendingon these innovative approaches.We do need the market incentives, CO2 tax, cap and trade,something that gets that price signal out there.We need to get the message out.We need to have this dialogue be a more rational, more understandable dialogue, including the steps that the government takes.This is an important wish, but it is one I think we can achieve.Thank you.(Applause)Thank you.Chris Anderson: Thank you. Thank you.(Applause)Thank you. Just so I understand more about Terrapower, right --I mean, first of all, can you give a sense of what scale of investment this is? Bil Gates: To actually do the software, buy the supercomputer,hire all the great scientists, which we've done,that's only tens of millions,and even once we test our materials out in a Russian reactorto make sure our materials work properly,then you'll only be up in the hundreds of millions.The tough thing is building the pilot reactor,finding the several billion, finding the regulator, the locationthat will actually build the first one of these.Once you get the first one built, if it works as advertised,then it's just clear as day, because the economics, the energy density,are so different than nuclear as we know it.CA: And so, to understand it right, this involves building deep into the ground almost like a vertical kind of column of nuclear fuel,of this sort of spent uranium,and then the process starts at the top and kind of works down?BG: That's right. Today, you're always refueling the reactor,so you have lots of people and lots of controls that can go wrong, that thing where you're opening it up and moving things in and out. That's not good.So, if you have very cheap fuel that you can put 60 years in --just think of it as a log --put it down and not have those same complexities.And it just sits there and burns for the sixty years, and then it's done. CA: It's a nuclear power plant that is its own waste disposal solution. BG: Yeah. Well, what happens with the waste,you can let it sit there -- there's a lot less waste under this approach -- then you can actually take that,and put it into another one and burn that.And we start off actually by taking the waste that exists today,that's sitting in these cooling pools or dry casking by reactor.That's our fuel to begin with.So, the thing that's been a problem from those reactorsis actually what gets fed into ours,and you're reducing the volume of the waste quite dramaticallyas you're going through this process.CA: But in your talking to different people around the worldabout the possibilities here,where is there most interest in actually doing something with this?BG: Well, we haven't picked a particular place,and there's all these interesting disclosure rules about anything that's called nuclear,so we've got a lot of interest,that people from the company have been in Russia, India, China.I've been back seeing the secretary of energy here,talking about how this fits into the energy agenda.So I'm optimistic. You know the French and Japanese have done some work.This is a variant on something that has been done.It's an important advance, but it's like a fast reactor,and a lot of countries have built them,so anybody who's done a fast reactor, is a candidate to be where the first one gets built. CA: So, in your mind, timescale and likelihoodof actually taking something like this live?BG: Well, we need, for one of these high-scale, electro-generation thingsthat's very cheap,we have 20 years to invent and then 20 years to deploy.That's sort of the deadline that the environmental modelshave shown us that we have to meet.And, you know, Terrapower, if things go well, which is wishing for a lot,could easily meet that.And there are, fortunately now, dozens of companies,we need it to be hundreds,who, likewise, if their science goes well,if the funding for their pilot plants goes well,that they can compete for this.And it's best if multiple succeed,because then you could use a mix of these things.We certainly need one to succeed.CA: In terms of big-scale possible game changes,is this the biggest that you're aware of out there?BG: An energy breakthrough is the most important thing.It would have been, even without the environmental constraint, but the environmental constraint just makes it so much greater. In the nuclear space, there are other innovators.You know, we don't know their work as well as we know this one, but the modular people, that's a different approach.There's a liquid type reactor, which seems a little hard,but maybe they say that about us.And so, there are different ones,but the beauty of this is a molecule of uraniumhas a million times as much energy as a molecule of, say, coal, and so, if you can deal with the negatives,which are essentially the radiation,the footprint and cost, the potential,in terms of effect on land and various things,is almost in a class of its own.CA: If this doesn't work, then what?Do we have to start taking emergency measuresto try and keep the temperature of the earth stable?BG: If you get into that situation,it's like if you've been over-eating, and you're about to have a heart-attack. Then where do you go? You may need heart surgery or something.There is a line of research on what's called geoengineering,which are various techniques that would delay the heatingto buy us 20 or 30 years to get our act together.Now, that's just an insurance policy.You hope you don't need to do that.Some people say you shouldn't even work on the insurance policybecause it might make you lazy,that you'll keep eating because you know heart surgery will be there to save you. I'm not sure that's wise, given the importance of the problem,but there's now the geoengineering discussionabout, should that be in the back pocket in case things happen faster,or this innovation goes a lot slower than we expect.CA: Climate skeptics: if you had a sentence or two to say to them,how might you persuade them that they're wrong?BG: Well, unfortunately, the skeptics come in different camps.The ones who make scientific arguments are very few.Are they saying there's negative feedback effectsthat have to do with clouds that offset things?There are very, very few things that they can even saythere's a chance in a million of those things.The main problem we have here is kind of like AIDS.You make the mistake now, and you pay for it a lot later.And so, when you have all sorts of urgent problems,the idea of taking pain now that has to do with a gain later --and a somewhat uncertain pain thing.In fact, the IPCC report, that's not necessarily the worst case,and there are people in the rich world who look at IPCCand say, okay, that isn't that big of a deal.The fact is it's that uncertain part that should move us towards this. But my dream here is that, if you can make it economic,and meet the CO2 constraints,then the skeptics say, okay,I don't care that it doesn't put out CO2,I kind of wish it did put out CO2but I guess I'll accept it because it's cheaper than what's come before.(Applause)CA: And so, that would be your response to the Bjorn Lomborg argument,that basically if you spend all this energy trying to solve the CO2 problem,it's going to take away all your other goalsof trying to rid the world of poverty and malaria and so forth,[that] it's a stupid waste of the Earth's resources to put money towards that when there are better things we can do.BG: Well, the actual spending on the R&D piece --say the U.S. should spend 10 billion a year more than it is right now --it's not that dramatic.It shouldn't take away from other things.The thing you get into big money on, and this, reasonable people can disagree, is when you have something that's non-economic and you're trying to fund that. That, to me, mostly is a waste.Unless you're very close and you're just funding the learning curveand it's going to get very cheap.I believe we should try more things that have a potentialto be far less expensive.If the trade-off you get into is, let's make energy super expensive,then the rich can afford that.I mean, all of us here could pay five times as much for our energyand not change our lifestyle.The disaster is for that two billion.And even Lomborg has changed.His shtick now is, why isn't the R&D getting discussed more.He's still, because of his earlier stuff,still associated with the skeptic camp,but he's realized that's a pretty lonely camp,and so, he's making the R&D point.And so there is a thread of something that I think is appropriate. The R&D piece, it's crazy how little it's funded.CA: Well Bill, I suspect I speak on the behalf of most people here to say, I really hope your wish comes true. Thank you so much. BG: Thank you.(Applause)。
I want to be Bill Gates演讲稿l
I want to Bill Gates八年级王家梅指导教师：葛晓慧Good morning , everyone. my topic is I want to Bill Gates. When you hear the topic, you must be surprised ,“Are you crazy? ”Yeah. Let me tell you why I want to be Bill Gates.I want to Bill Gates, because he is a creative person. when he was 13years old, he worked out a software program with his friends. It brings us lots of convenience. I want to be a useful person like him.I want to be Bill Gates, because he is a warm-hearted person. Though he is the richest man in the world, he gave away 1/3of his money to charities, besides that, He attends different kinds of charity activities, such as: <Ice bucket challenge>…I want to be Bill Gates, because he is a responsible person. He set up< the Bill and Melinda Gates Foundation>. It cares for the children’s health and education. People all respect him.I want to be Bill Gates, because he is a successful person. He is remembered by all over the world, not only because of the huge success of his business, but also the huge contribution he made to the society.I want to be a person like Bill Gates, please don’t laugh at me. Because it’s my dream. I am achieving it step by step.First, I have a good attitude to study. I can study hard during or after class everyday. Second, I have a creative spirit. I try to achieve mythought by practicing, Look! I ‘m making a robot. Though I failed, I never gave up. Third, I am always ready to help others, I think helping others is helping myself.I believe even if I can’t be a person as ric h as Bill Gates, I’m sure I will be a warmhearted and responsible person like him, and I will be a useful person to the society. Trust me! I can do that!。
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Hello! Everybody! I’m Ellsa. My topic is --
The Best Hotel I’ve Ever Stayed In
P.1 Last summer, my mother and I went to South Korea by a super luxury cruise -- Costa Atlantica, owned by Costa Crociere, an Italian company. The travel on land was not enjoyable, but on the contrary, the 5-day trip on board was better than we had ever thought. This is the external view of the super cruise. A lot of people said that she looked like an apartment building above a hull.
P.2 She was the largest ship in the Costa’s fleet. What surprised me most was that her length was even longer than the first Chinese aircraft carrier Liaoning. You can see here on the list, more than 1,000 cabins, 12 decks for relax or entertainment. So we had enough place to spend our time enjoyably. She could carry more than 3,000 people in total.
P.3 Lifeboats are placed in niches on the ship’s side. We had the evacuation and drill practice right after we went into our cabin. It took about 30 minutes and all the passengers stood in order on every decks. The ship had enough lifeboats to carry all the passengers. Therefore, I had little worry about our safety.
P.4 We had an Ocean View Cabin with a private balcony, with a direct view of the sea. So we can appreciate the beautiful scenery not only on the decks but also in our own cabin. The cabin was very spacious and comfortable. Every time we went back to our cabin, it seemed to have been cleaned and tidied up again. Cleaners provided us with a piece of Today newspaper about all the activities that would happen tomorrow. It’s actually very useful for us to decide whether to go to the magic show or to play games or other variety of activities.
P.5 Cause we were next to the control cabin, we were excited to see the captain regularly. But it’s a long way to walk back if we started from the stern.
P.6 My eyes lit up when I saw the inside of the cruise. Each space had a different personality. The cultural atmosphere was created by rooms such as the Tiziano Restaurant, Piazza Madame Butterfly, Casino and Caffe Florian. I was amazed to see the ever-changing atmosphere.
P.7 Each passenger deck was named after a movie by the Italian director Federico Fellini, which seems a little romantic. The stairs and the lifts are ample and efficient. In the atrium we find high backed red leather chairs and different kinds of sofas that are all comfortable.
P.8 Food was plentiful and good, we dined in the main restaurant, breakfast and lunch in the buffet. They had both Chinese food and western food, so we had plenty of choice.
P.9 There existed everything you can imagine. The cruise was just like a mobile city sailing on the sea. They had different shows every night in 3 theatres.
P.10 There were also 4 restaurants, 12 bars, cafe, library, Internet point, 3 theatres, shopping gallery, chapel, card room, disco, gardens, Squok Club for children and teenagers, spa, beauty salon, gym, sports pitch, swimming pool, sunbath deck, and also even wifi on the sea. But the wifi was very expensive on board. It cost me 7 dollars although I only used it for 20 minutes. But people can surf the Internet in the library, not for free.
So all in all a great time was had by all. I loved it, food was fine, drinks were good, staff were all very attentive, polite and helpful. The hospitality and warmth made me in good mood every second. In spite of my seasickness, I went to almost every place of this excellent ship, enjoy the scenery outside and inside. I’m really satisfied with their service on board.。