小学科技论文新颖题目大全高中英语作文

科技小论文——警惕全球变暖最近这几年，大家觉得天气一下子就变热了，原本凉爽的秋天现在几乎要到10月下旬才开始，8月份最热的天居然达到了40度以上。这是为什么呢？原来，是人类自己惹的祸。随着人类高科技发展进程越来越快，科学随之产生的副作用逐渐体现出来，全球变暖就是一个例子。天气炎热，在酷暑里泡空调成为了一项新的“业余爱好”，但人们可曾想过，空调会带来什么负面影响呢？答案当然是肯定的，空调排放的气体中含有大量的甲烷，输送到外面，甲烷也是导致全球变暖的气体。同时，空调还会浪费掉许多电，所以要尽量避免用空调，适当即可。而另一个原因就是：二氧化碳！汽车尾气与工厂废气中含有大量二氧化碳，而二氧化碳最可能导致温室效应（即全球变暖）现在汽车逐渐增多，据有关方面统计，到21世纪，汽车在全世界已有7亿辆，大量的尾气严重影响着我们，咳嗽，喉咙发炎……最重要的是全球变暖。有人统计，美国人均二氧化碳排放量已达到了20吨一年！中国每年的二氧化碳排放量人均排放量也有51吨一年！我们周围的环境在恶劣地变化。更重要的原因就是：森林锐减，水资源破坏，生态链严重被破坏，大量土地贫瘠，水污染严重，据统计全世界10%的河水被污染，新鲜的淡水供应成了问题，同时由于矿物质被大量使用，燃烧出的CO2气体导致了大气污染，同时臭氧层被严重破环，南北极出现臭氧层洞，加剧了环境的恶化。这样恶性循环的话，最终会导致人们的生活被严重影响。这样一来的悲剧是什么呢？当然是显而易见了！天气加热，海平面上涨，南北极冰川融化，海滨城市，岛国被淹。这一切，都严重影响了人类的生存，实验证明，以后300年，海平面将上涨半米多，这还是最乐观的数据。再过7年，全球变暖将会无可逆转地持续。更可怕的是，由于北极冰融化，降雨量加强，大量淡水汇入北大西洋，破坏了墨西哥暖流，一旦墨西哥暖流被切断后，欧洲西北部温度将会下降5—8度之多，从而造成的影响，很可能引发新的冰河时期！想必大家一定看过《后天》这部电影，剧中的情景正是几百年后对我们地球的一个真实写照：龙卷风，冰层断裂，温度急剧下降，冰风暴，冻雨，地震，洪水，海啸……这并不是疯狂的幻想，如果人类不停止毁坏环境的话，这将成为现实！全球变暖不仅仅是天气变热，更会牵连出许多负面影响！

Early Electronic Computers The first real progress toward electronic digital computer came in the late 1930s when Howard Aiken of Harvard University and George Slibits of Bell Telephone Laboratories developed an automatic calculator using relay networks;the relay is an electromagnetically controlled Other relay machines were developed during World War II for artillery ballistic Although these machines were relatively slow and comparatively they demonstrated the versatility of the electronic Then，in the early 1940s， John Mauchly and JPresper Eckert，J，of the University of Pennsylavania designed and built a vacuum tube computer，which they called the electronic numerical inegrator and calculator(ENIAC);it was completed in 1945 and installedat Aberdeen Proving Ground，M ENIAC used 18000 electron tubes，which required tremendous amounts of power;its failure rate wa high and it was difficult to program because a plugboard was Three very important discoveries were then made，which began the rapid evolution toward today's digital First，John von Neumann proposed that the program reside in the computer's memory where it could be changed at will，solving the pogranmming difficulties of ENIAC;second，in 1947 the transistor was invented by John Bradeen，Waltr HBrattain， and William Shockley，which drastically reduced the size and power requirements by replaceing the electron vacuum tube;hird， JWForrester and his associates at the Massachusetts Institute of Technology developed the magnetic，core memory，which made large amount of storage Reference book: Digital Logic Circuit Analysis and Design(Authors:Victor PNelson HTroy Nagle JDavid Irwin)

英语科技论文写作(技巧+范文)

小学科技论文新颖题目大全高中英语

英语教育的漏洞，教育的改革，英语的教学方式，教育方式的创新，这些方向就是比较好的，这些方向非常的有意义，可以促进教育业的发展，可以让学生更加优秀。

英文朗诵，英文诗歌赏析，英文电影的理解，英国谚语的研究，英国神话传说故事，这些题目都比较有创新意义。

要结合你自己的思想才行啊，我们想出来的你未必写的出内容啊，

小学科技论文新颖题目大全初中英语作文

题目内容摘要关键词作者名字，地址，邮政编码正文参考文献其他

吗你呢女孩非常飞过海金华家门口看金华不能个一天骨化风成就回复的人更好的道德的要大得多的长途费用飞天关系的人通常官方的人痛风vsrtfgby 让他想到

I want to invent something你们知道我想发明什么吗？一定是你们想不到的，就是会变的汽车，你们是不是没有想到啊！You know I want to invent what? You must have been unexpected， just change the car， you Is it right? Did not think ah!我想像中会变得汽车可不是普通的有尾气的汽车，这种车有4个奇幻的按钮，一个是红的优秀作文作文人，让你在陆地上安全行驶；一个是绿的，让你在堵车的时候飞起来；一个是蓝的，让你在水里遨游；最后一个是白的，它能让车收缩起来，好让车在你的口袋里，然后你再挥一下手，车就可以变大。I imagine will become car can not be common with the tail gas of the car， the car has 4 magic button， one is red good composition composition， make you safe driving on land; one is green， let you fly when stuck in traffic; one is blue， let you swim in the water; the last one is white， it can let the car the contraction， so the car in your pocket， and then you wave your hand， the car can be 会变的汽车除了有奇幻的按钮，还有无声的喇叭，这个喇叭，按了是没有声音的，你们或许会想：没有声音怎么提醒别人呢？告诉你们吧！其实，这种喇叭会震动，这种震动震一下，前面的人就可以开起车来了。Will become a car in addition to fantasy button， and a silent horn， the horn， press is no sound， you might think: no sound to remind others? Let me tell you! In fact， the horn will vibrate， the vibration shock you， in front of the person you can 这种汽车不但不污染，还保护环境呢！这种汽车没有尾气，在原来喷尾气的地方，散发着一种气体，这种气体就叫：环境带，为什么叫环境带呢？因为这种气体保护环境，是保护环境的“腰带”，所以叫做环境带。This kind of car is not only pollution， also to protect the environment! Not exhaust the this car， in the original jet exhaust place exudes a gas， this gas is called: environment， why call environment? Because the gas to protect the environment， is to protect the environment "belt"， so called environmental 我想发明的会变的汽车神不神奇呢？你们想发明什么呢？展开想象力，写一篇关于你想发明的东西的作文吧！I want to invent the automobile will become God's not amazing? Do you want to invent it? Imagination， to write an article about you want to invent something composition!我想发明的东西　　你们知道我想发明什么吗？一定是你们想不到的，就是会变的汽车，你们是不是没有想到啊！　　我想像中会变得汽车可不是普通的有尾气的汽车，这种车有4个奇幻的按钮，一个是红的优秀作文作文人，让你在陆地上安全行驶；一个是绿的，让你在堵车的时候飞起来；一个是蓝的，让你在水里遨游；最后一个是白的，它能让车收缩起来，好让车在你的口袋里，然后你再挥一下手，车就可以变大。　　会变的汽车除了有奇幻的按钮，还有无声的喇叭，这个喇叭，按了是没有声音的，你们或许会想：没有声音怎么提醒别人呢？告诉你们吧！其实，这种喇叭会震动，这种震动震一下，前面的人就可以开起车来了。　　这种汽车不但不污染，还保护环境呢！这种汽车没有尾气，在原来喷尾气的地方，散发着一种气体，这种气体就叫：环境带，为什么叫环境带呢？因为这种气体保护环境，是保护环境的“腰带”，所以叫做环境带。　　我想发明的会变的汽车神不神奇呢？你们想发明什么呢？展开想象力，写一篇关于你想发明的东西的作文吧！

1、写人的， When I sat at the desk， trying to write the essay， I found it hard to set pen to Staring at the topic I deliberately chose for myself "my mother"， I felt the memory of 20 years with my mother suddenly turned into a haze， blurring my eyes to discern the past， with nothing towering， nothing flaring， nothing impressive or special enough as a The haze gradually cleared away， revealing the image of an amicable I recalled a line from the famous movie "Sleepless in Seattle" The radio column hostess asked Sam， "What's so special about your wife？" He answered， "That's millions of small " Right，trivial and commonplace， like obscure beans， yet woven into the most spectacular necklace by the power of My mother is ordinary， but in my eyes she is My mother gave birth to me with exceptionally difficult Father received an emergency notice and was faced with a choice between the adult and the Of course，the So my coming into this world was an unexpected fortune at the price of Mother's painful Thus my 20 years began like this my mother exerted every effort to give me love， but I returned her with a deep scar that was to stay with her all through my My mother is a senior high school English Under standably， she wanted her daughter to pick up English early to give her an edge to later study， which I did not understand at the age of I was so obsessed with fun and games that I hated to stay peacefully with all those strange phonetic symbols and odd I wondered what pleasure Mother seemed to have found in teaching me A，B， C Wasn't teaching at school tire some enough for her？ I went on strike， refusing to spell a single word no matter how tender or severe Mother tried to be with For the first time in my life， Mother beat me， imprinting on my The physical pain was gone long， long But I have finally come to understand how it pained my mother to beat me for my obstinacy and disobedience， and I ache at her Mother never gave up evoking in me an interest in She placed the most emphasis on my education and took the most pleasure in my gradual formation of self-discipline in preparing myself for future Thanks to her effort and influence， I have been doing well， not only in English， but also in my positive attitudes and conviction towards 啤酒主义者回答采纳率:6% 2008-10-14 22:32 A DreamMary: I’m now in the I can’t believe it! It’s so beautiful! What a colorful fish! It’s so lovely! Little fish， don’t go away! Oh， here comes a blue Wow， it’s so big! It’s bigger than my Oh no! There is a shark! Help! Help!Helen: What’s the matter， Mary?Mary: I saw a Its teeth are so big!Helen: Oh， it must be a Mary: …Yes， it’s a 赫锢蔽寡霓回答采纳率:0% 2008-10-18 03:21

小学科技论文新颖题目大全高中英语听力

中国大学英语教学环境中以内容为依托的外语教学模式研究大学英语教学改革的文化哲学研究中国英语教学中的文化教学：问题与对策跨文化交际法中国英语教学模式探析母语正负迁移在英语教学中的应用大学英语口语考试对大学英语教学的反拨作用网络环境下城市高中英语阅读教学模式研究网络条件下英语教学模式的构建高中英语中的文化教学

小学科技论文新颖题目大全高中英语作文

小学科技论文新颖题目大全高中英语作文

小学科技论文新颖题目大全高中英语

小学科技论文新颖题目大全初中英语作文

小学科技论文新颖题目大全高中英语听力

小学科技论文新颖题目大全高中英语单词