第5课 Earth and Sky科普英语---Global Warming and Ozone 全球变暖和臭氧
关于globalwarming的英文演讲稿三篇
global warming的英文演讲稿关于global warming的英文演讲稿三篇篇一：Global Warming 演讲稿Global WarmingNowadays, to prevent global warming is becoming more and more important. For years, the level of human’s life is increase. And of course, this cause lots of other things and all of this result in global warming.As we all know, global warming means not only the temperature of all parts of the world to increase, but harm human’s life as well. In spite of this, many people still spoil our life and pollute the environment for their own benefit. Because of this, I want to say: Present, the earth is human’s only home, it is like a mother protects us as her baby. If we don’t love our mother, what could we do elseYou know, Egypt is a very big country in North Africa and ninety percent of the land area is desert which is hot and seldom rains in all the year. That’s because human’s improper development of nature. The country is suffering from the effects of the global warming and I believe that many countries near the Equator have this pain as well.Now, let’s talk about the dangers of global warming in the polar region. There are polar bears in arctic and penguins at the south polar. They are the peculiar animals at the polar region. Global warming causes the icebergs to melt and these animals will disappear in the world. For the cute animals, we also need to prevent global warming.In my opinion, though global warming causes many dangerous things, it can avoid if people pay attention to this. Andafter this, we will have a better life and live in a more beautiful world.I had finished my speaking. Hope you will have a new, extensive understanding of global warming. Thank you!篇二：solutions to the global warmingsolutionsPossible solutions to global warming range from the simple to the complex -- from changing a light bulb to engineering giant reflectors in space. The most talked about solutions involve expanded use of alternative energy technologies, and less reliance on fossil fuels. 1.Throughout the world,various nations have been joining to help prevent or slow the process of global warming. On February 3, 2007, French president, Jacques Chirac5, proposed a new plan to prevent global warming. Forty-five nations, not including the United States, joined him in his efforts. General speaking, every country should do as follows, strengthening the protection of existing vegetation, especially the protection of tropical rain-forests, using clean energyinstead of the use of fossil energy, enhancing citizens' awareness of environmental protection, taking conducive to a low-carbon industrial development policy and also strengthening international cooperation.2.for common peopleWhen people are trying to get others involved in the cause, a common problem that arises is the lack of motivation.Many people do not realize that if they can slow the rapid warming process, then there will be more time to develop alternate energy sources, such as nuclear fusion. So individually people can recycle, use fuel-efficient cars, carpool, and simply raise awareness.3.In conclusion, the world needs to put forth a stronger effort to prevent global warming; the greenhouse gasses suffocate the earth more each day. If countries make a greater effort to slow global warming, the world’s predestination may not be reached until many years later. And as a common one, we should hold the thoughts to change this situation, then takesome actions that we篇三：英语演讲the global warmingHello, everyone!Today, I will talk about the global warming.As we all known, our earth is having a fever. People around the world may feel that the climate has been getting steadily warmer and warmer in recent years. And here is what this apparently global warming is doing to us: Directly people find that without air conditioners they could hardly work or fall asleep on hotter summer days .The Sea level is rising very slowly from year to year .In all likelihood, it will force people to retreat from inland .Many cities will be drowned .Much of the productive farming areas of the world will be lost.And it is mainly because of carbon dioxideBut why is the concentration of carbon dioxide in the atmosphere steadily risingTo blame are many factors .First of all, the burning of fossil fuel .Humans use these fuels to power cars, heat homes and create electricity.Secondly ,earth forests have been disappearing rapidly .Thus ,not only is more carbon dioxide being added to the atmosphere,but as the forests disappear ,less carbon dioxide is being removed from the atmosphere by plants.Finally, in many countries, many specific laws aboutenvironment are either blank or unclear. Consequently, many activities and behaviors that do harm to the environment can go without punishment. To pursue high speed increase of economy, economy is often developed at the cost of environment destroy.There is no easy solution to global warming. If nothing is done, scientists warn that rainfall patterns will change .so we should try our best to protect our earth.First of all, citizens should pay more attention to their personal affairs. We can minimize the use of one-time things, drive low-emission cars and so on.Secondly , economy is so important to our life that it is impossible to stop using energy. What can we doGovernments should put forward a series of policies to encourage people to use clean energy such as wind energy, water energy, nuclear energy. Today, the proportion of using clean energy is extremely small so far.Thirdly, most of the countries should pay much money to deal with global warming. However, the rich countries hold the opinion that it is everyone’s responsibility to deal with global warming, while the poor ones do not agree. The developing countries considered that developed countries should take more responsibility since they product more gas emissions. As for me ,developed countries can offer some information and technologies to developing countries .These technologies are about how to decrease the concentration of carbon dioxide.In a word, it needs a lot of cooperation to reducing global warming. Global warming needs global action now. Thank you!。
教科版科学二年上册《我们的地球家园》第五课《各种各样的天气》说课课件(附反思、板书)
教科版科学二年级上册
大家好，今天我说课的内容是教科版二年级上册的 内容《各种各样的天气》。下面我将从说教材、说学情、 说教学目标、说教学重难点、说教法、说教学过程和板 书设计及教学反思这八个方面展开。接下来开始我的说 课。恳请大家批评指正。
一、说教材
本课引导学生认识的是地球家园中常见的各种天气现象，以及这些天气与我们人类生活的密切联系 。 教材从“天气会影响和改变我们的家园，天气有哪些变化呢？”这个问题直接聚焦到本课的研究主 题，这个问题既点出了“各种各样的天气”的课题，同时也点出了本课的研究内容——天气对我 们地球家园的影响。在探索环节，首先让学生“说说我们知道的天气”，这是为了了解学生对于天 气的前概念。其次，“我们如何区分不同的天气？”这个问题配合“阴”“晴”“雨”“雪”四张 天气图片，是为了让学生能够根据不同天气中地球家园所展现的特征来区分不同天气。最后，“说 说天气对我们生活的影响”这个活动是为了将天气与我们的际生活建立联系。在研讨环节，通过 “阴、晴、雨、雪、风等天气对动植物和人类有哪些影响？”这个问题，让学生进一步认识日常生 活中所观察到的不同天气分别对动物、植物和人类的影响。拓展环节主要是让学生课后查阅资料， 了解地球上的极端天气及其产生的后果，这个环节是为了让学生进一步完善“天气对于我们地球家 园的影响”的认识，辩证地看待事物。
二、说学情
1、本课的教学目标是指导学生能用自己的语言来描述阴晴雨雪风等天气 现象，学生能说出当日的天气情况，如阴晴，但如果让学生标准的说出 每天的天气状况，就有些困难，为了减小难度，我首先提 出了这样的一 个问题：天气会影响和改变我们的家园，天气有哪些变 化呢？通过这样 的明确讲解，学生就会明确天气的概念。 2、对于灾害性天气如大风暴雨，冰雹，龙卷，风寒潮，霜冻，大雾等，
关于全球变暖globalwarming的英文文章
关于全球变暖global warming的英文文章下面就给你cram恶补一下关于global warming的英文知识，让你在聊起环保话题也游刃有余!什么是全球变暖? What is Global Warming? Global warming is the unusually rapid increase in Earth’s average surface temperature over the past century primarily due to the greenhouse gases released as people burn fossil fuels. The global average surface temperature rose 0.6 to 0.9 degrees Celsius (1.1 to 1.6° F) between 1906 and 2005, and the rate of temperature increase has nearly doubled in the last 50 years. Temperatures are certain to go up further.自然界有正常的“温室效应” Earth’s natural greenhouse effect Earth’s temperature begins with the Sun. Roughly 30 percent of incoming sunlight is reflected back into space by bright surfaces like clouds and ice. Of the remaining 70 percent, most is absorbed by the land and ocean, and the rest is absorbed by the atmosphere. The absorbed solar energy heats our planet. As the rocks, the air, and the seas warm, they radiate “heat” energy (thermal infrared radiation). From the surface, this energy travels into the atmosphere where much of it is absorbed by water vapor and long-lived greenhouse gases such as carbon dioxide and methane. When they absorb the energy radiating from Earth’s surface,microscopic water or greenhouse gas molecules turn into tiny heaters— like the bricks in a fireplace, they radiate heat even after the fire goes out. They radiate in all directions. The energy that radiates back toward Earth heats both the lower atmosphere and the surface, enhancing the heating they get from direct sunlight. This absorption and radiation ofheat by the atmosphere—the natural greenhouse effect—is beneficial for life on Earth. If there were no greenhouse effect, the Earth’s average surface t emperature would be a very chilly -18°C (0°F) instead of the comfortable 15°C (59°F) that it is today.加强版“温室效应” The enhanced greenhouse effectWhat has scientists concerned now is that over the past 250 years, humans have been artificially raising the concentration of greenhouse gases in the atmosphere at an ever-increasing rate, mostly by burning fossil fuels, but also from cutting down carbon-absorbing forests. Since the Industrial Revolution began in about 1750, carbon dioxide levels have increased nearly 38 percent as of 2009 and methane levels have increased 148 percent.。
《Unit 5 Natural Wonders in the World Warming up》教学
《Natural Wonders in the World Warming up》教学设计方案（第一课时）一、教学目标1. 学生对地球自然奇观有基本了解，增强对全球变暖问题的认识。
2. 提高学生用英语描述和表达自然奇观的能力。
3. 培养学生保护环境的意识和责任感。
二、教学重难点1. 教学重点：学生能够用英语描述各种自然奇观，以及如何应对全球变暖问题。
2. 教学难点：学生对一些专业词汇的理解和运用。
三、教学准备1. 准备相关的图片、视频和PPT等教学资源。
2. 准备教学用的实物和模型，如冰川、珊瑚等。
3. 准备与全球变暖相关的问题和讨论素材。
4. 准备课堂互动环节所需的道具和设备。
四、教学过程：本课时的教学目标是通过了解全球变暖的现象，引导学生树立环保意识，掌握描述自然奇观的词汇和句型。
在教学过程中，注重培养学生的观察、思考、表达和合作能力。
1. 导入环节：通过展示全球变暖对自然环境造成的破坏图片，引导学生讨论全球变暖的原因和影响。
同时，引导学生了解本节课的主题，即“Natural Wonders in the World Warming up”。
2. 词汇学习：通过图片和视频，引导学生学习描述自然奇观的词汇和短语，如冰川融化、火山爆发、地震、极地融化等。
同时，通过小组合作，让学生运用所学词汇描述图片中的自然奇观。
3. 句型操练：通过展示一些描述自然奇观的句子，引导学生进行句型操练。
例如：“The Earth is getting warmer and warmer. The polar ice caps are melting. Volcanoes erupt frequently now.” 通过句型操练，帮助学生掌握描述自然奇观的句型结构。
4. 课文阅读：通过阅读课文，了解全球变暖对自然奇观的影响。
在阅读过程中，引导学生注意作者如何运用语言描述自然奇观的变化。
同时，鼓励学生尝试用自己的语言描述课文中的自然奇观。
unit 5 global warming
We haven’t seen CO2 levels like this in hundreds of thousands (8) of years, if not millions of year.
Activity like burning fossil fuels (6), releasing barbon dioxide (7) or CO2 and other greenhouse gases.
The one thing I think we can say with a fairly high degree of confidence is the severity of the storms, how strong the storms, these cyclonic events like hurricanes and cyclones in the Pacific (2,4), are going to get—they’re going to be more severe.
4. What does Corell say his job is? His job is to tell the government exactly what he knows scientifically. Well, what I do then is, I try to tell them exactly what we know scientifically.
3. What does he use to take down a bear? A tranquillizer dart It’s the job of his assistant Evan Richardson to take them down with a tranquilizer dart.
英语听力原文《全球变暖》
英语听力原文《全球变暖》全球气候变暖是一种自然现象。
下面，我们来看一下这篇听力原文告诉我们的那些全球变暖的危害。
Global warming may or not be the great environmental crisis of the 21st century, but—regardless of weather it is or isn't— we won't do much about it. We will argue over it and may even, as a nation, make some fairly solemn-sounding commitments to avoid it. But the more dramatic and meaningful these commitments seem, the less likely they are to be observed.全球变暖有可能是21世纪巨大的环境危机，也有可能不是，但是无论它是或不是我们对此都无能为力。
我们会争论不休，作为一个国家，或许会做出一些听起来相当认真的承诺来避免这一危机。
但是这些承诺看起来越是令人印象深刻、越是有意义，就越是不太可能被遵守。
Al Gore calls global warming an “inconvenient truth,” as if merely recognizing it could put in on a path to a solution. But the real truth is that we don't know enough to believe global warming, and —withour major technological breakthroughs — we can't do much about it.Al Gore 称全球变暖是一个“让人感到麻烦的事实”，似乎只要认识到它的存在就可以把我们带往一条解决问题的途经上去。
Global-Warming-原因-中英对照
原因分析人为因素1.人口剧增因素Dramatic increase in the population人口的剧增是导致全球变暖的主要因素之一。
同时，这也严重地威胁着自然生态环境间的平衡。
这样多的人口，每年仅自身排放的二氧化碳量就将是一惊人的数字，其结果就将直接导致大气中二氧化碳的含量不断地增加。
The population factor is one of the main reasons in global warming. At the same time, this is a serious danger to the balance between natural environment. So large the population is, each year only the amounts of their own carbon dioxide emissions would be a staggering figure. And this result will lead directly to the increase of carbon dioxide in the atmosphere.2.大气环境污染因素Environmental factors环境污染的日趋严重已构成一全球性重大问题，同时也是导致全球变暖的主要因素之一。
21世纪，关于全球气候变化的研究已经明确指出了自上个世纪末起地球表面的温度就已经开始上升。
Nowadays environmental pollution has turned major global problem, also lead to global warming.Now, global climate change research has clearly pointed out that since the end of last century , the Earth's surface temperature has begun to increase .3.海洋生态环境恶化因素Deterioration of the marine environment factors海平面的变化是呈不断地上升趋势，根据有关专家的预测到下个世纪中叶，海平面可能升高50cm。
global warming英语听力
global warming英语听力English:Global warming refers to the long-term increase in Earth's average surface temperature due to human activities, primarily the release of greenhouse gases such as carbon dioxide, methane, and nitrous oxide. These gases trap heat in the atmosphere, leading to the warming of the planet. The consequences of global warming are far-reaching and include rising sea levels, more frequent and severe weather events, and changes in ecosystems and wildlife habitats. It also poses a threat to human health and food security. Addressing global warming requires global cooperation and significant efforts to reduce greenhouse gas emissions, transition to renewable energy sources, and implement sustainable land use practices.中文翻译:全球变暖是指由于人类活动，主要是二氧化碳、甲烷和氧化亚氮等温室气体的释放，导致地球平均表面温度长期增加。
这些气体在大气中捕获热量，导致地球变暖。
Global warming 英文ppt教学文案
2.Drought is an effect of global warming that we are already seeing right now. Many countries are finding that they are currently receiving more storms and rising waters, while other countries are suffering from drought.
Global warming 英文ppt
What terrible it is! Don’t let planets be stove in the future, give our descendants a comfortable planets.
Contents
The Reason of Global Warming The Effects of Global Warming The way to stop Global Warming
The Reason of Global Warming
With the development of economy, more and more greenhouse gases a re being discharged into the air. CO2 makes up about 70% of the greenhouse gases, which is considered to be one of the greatest causes
THA供参考！ 感谢您的支持，我们努力做得更好！谢谢
Do you want our planet to be this ice cream? I think everyone’s answer is no! So what we can do?
高中英语必修6课件：Unit 4《Global warming》
以下是一些主宾换位的类似用法。
(1)The rain will benefit the crops. ＝ The crops will benefit from the rain. (2)I am very familiar with this place. ＝ This place is very familiar to me. (3)Mr. Smith is in charge of Class One. ＝ Class One is in the charge of Mr. Smith. (4)The widow is in possession of a large fortune. ＝ A large fortune is in the possession of the widow.
_o_n__b_e_h_a_lf_o_f__________ _s_o__lo_n_g__a_s___________
1.There is no doubt that the earth is becoming warmer and that __it_i_s____ human activity __th_a_t____ has caused this global warming rather than a random but natural phenomenon.
2. n. 现象
______p_h_e_n_o_m_e_n_o_n_____
3. vi. 同意；捐赠
vt. 签署(文件)；捐赠
_____s_u_b_s_c_ri_b_e________
4. n. 数量；量
_____q_u_a_n_t_it_y_________
5. vi. 趋向；易于 vt. 照顾；护理______te_n_d____________
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第5课:Earth and Sky科普英语：
Global Warming and Ozone 全球变暖和臭氧
Could the coming century bring a new threat to the ozone layer? Discover one scientist's model of the effect of global warming and greenhouse gases on ozone -- on today's Earth and Sky.
DB: This is Earth and Sky.
JB: After 30 years of steady decline, Earth's ozone layer is thinner but seems to be stabl e. A ban on ozone-depleting CFCs is largely responsible. Computer modeling gives reason to hope for an almost full recovery of Earth's ozone layer within 60 years. But this sort of modeling is difficult -- and its predictions aren't iron-clad.
DB: And some mod els show the ozone layer could face a new threat -- from global warming. Drew Shind ell, an atmospheric scientist at NASA's Goddard Institute for Space Studies in New York City, talked with us about his computer mod els of climate.
Drew Shind ell: So we get this combination of temperature change and methane changes, water vapor changes, we have changes in reactive nitrogen species -- which come from another greenhouse gas -- and
all of these things put together end up l eading to a net decrease in the amount of ozone in the lower stratosphere.
JB: So if the world gets warmer, stratospheric ozone might be depleted again -- by 5 to 10 percent -- a return to today's low levels. What could be done then to protect the ozone layer?
Drew Shind ell: Well, we would have to control greenhouse gas emissions and certainly that is a much more complicated problem -- and a much bigger change in economic systems and such -- than it was to change the CFCs.
DB: Special thanks today to NASA's Earth Science Enterprise. We're Block and Byrd for Earth and Sky.。