现象解释类作文练习【一】
生活中有很多的物理现象，许多简单的现象可以用所学知识去解答。
现象一：飞快的火车有一个安全距离，当我们在公路上步行时，不宜靠中太近，除了害怕离线的车会撞到之外。还有一个意料之外的`原因，对此本文将作出解答。
现象二：取两片很薄的纸，将他们贴近，用力的吹，我们并不能将纸吹开，反而出现被“吹拢”的情况。
现象三：对于相同流量的水而言，口径大的水龙头，水的流速很慢，但是对于口径小的水龙头，可以明显的看到流速加快了。这是什么原因呢？
总结来看，空气和水都是流体，在两者之间有着一定的共同点，都遵循流体的基本性质，在流体的学习中有两个很重要的方程叫：伯努利方程和连续性方程。用它们就可以很简单的解释上面三个现象。首先，伯努里方程的基本表达式为：P+1/2pv+pgh=恒量。P指流体周围的压强大小，p指流体本身的密度，v指流体的速度。在上述但现象中，可把水和空气近似的看作理想流体，且它们作常流动。在以上前两种情况中，都可以将pgh看作是不变的，所以我们很容易的就得到P+1/2pv=恒量。容易得出压强和速度成反相关。下面将对三个现象作出具体的解释。
解释现象一：其中提到一个意外的原因就是很有可能身边的空气将我们“推”向汽车而发生意外。为什么这么说？当车飞快的从我们身边开过的时候，对周围的空气造成了影响：使它们的速度加快，在这样的情况下，根据上面的推倒易知：速度过快造成周围空气的压强减小，在汽车周围形成一个压强差，在车周围的事物就容易被“压”到车下。这是相当危险的，所以步行要尽量的靠边走。
解释现象二：当两片薄纸靠近，我们将它们看成和外面的空气分开，当我们吹气时，使得两纸间少量的空气流速加大，压强减小，外围的空气使得纸片贴在一起。
解释现象三：同流量即体积相同，所以易知SV=S V。这就是理想流体的连续性方程。它表示理想流体作定常流动时，流体的速率与流管截面积的乘积是一个恒量。由此可知，当我们将口径边小时，必然导致流速加快。根据个原理在科技上也有很大的运用，比如切割水枪，对于一样的出水量，这种水枪的口径很微小，使得出水的速度极快，所含动能极大，在生产上有很大的运用。
最后，要介绍一个很实用的方法：取水。在家中，看到大人用一根管子插到水里，用嘴在管口吸气，水就会自己流出来，我也试过，但没有成功，现在我目标了原因：必须保证吸气的一端低于出水的一端，为什么呢？这是利用了大气压的原理。当吸气后管子里成为真空，水就被外界大气压压倒了出水端。
物理在我们的生活中有很大的作用，我们可以借着生活来学习物理，再利用物理来服务生活。
现象解释类作文练习【二】
1、这个剧本是根据一本小说改写的。
2、接下来，根据需要完成的工作的类型，对每一项活动进行划分：构建、评估和购买、改写和扩展，等等。
3、开始写之前，你要先找到你想改写的这本书，看看它的版权是不是受限制。
4、而且，还没有人冲出来改写科学教科书。只是暂时还没有。
5、在该机制中，我改写了引入的RDF语句来添加其源。
6、假如上周日晚在布鲁塞尔召开的会议能改变那些关于欧元的规定，下次发生危机时它们就也能被改写。
7、然而，历史是由胜利者改写的，它有时也会遭到它的反对者的玷污。
8、他是"美国人格地位"组织的总裁，该组织试图改写各州的.和美国的法律和宪法，使得一个人，作为人的地位在"被创造时"就能够获得法律承认，他说。
9、而如今，很多网页都是动态的，这就意味着你看到的东西已被改写或者是被临时创建的，只为投你所好。
10、但即便是这样的同学，他们同样很欠缺有关管理需求、撰写文档和改写程序的。
11、现在唯一需要的就是人工子宫，我们将彻底改写人类的生殖史。
12、您可以把这段代码改写成您自己的应用程序。
13、如果还想使用第三种版本，（比如WML（无线标记语言）），只需再提供一个样式表并相应改写配置文件即可。
14、对于那些需要将现有对象结构改写成XML的应用程序，以及希望分离实际XML结构和代码的任何应用程序而言，它特别有用。
15、这个发现，包括大量与其他神、法老王相关的铭文，“打开了那个时代许多秘密的大门，有助于改写西奈半岛的历史。”马克苏德表示。
16、“它会彻底改写我们认为现代人类从非洲移民而来的观念，虽然远未获得证明，但杰夫等人一定会开展新的研究来验证他的理论”。
17、无论是哪种情况，商界都需要深入挖掘这场抗议运动的根源，认真思考，慎重回应，重新制定规则，而不是被动等到由他人来改写规则的那一天。
18、清单4将原来的方法改写为更加紧凑、易读的方法。
现象解释类作文练习【三】
例二题目考查对说明文语言的赏析能力。说明文语言的特点是准确、简明、浅显、易懂，其中准确是前提。在这个前提下，语言风格可以是平实的，也可以是生动活泼的。通读全文，可发现本文的语言具有浓郁的生活气息，言辞优美，读来朗朗上口。解题时，可从修辞、表达方式、表现手法、句式等角度中任选一个角度，分析画线句的语言特点。
现象解释类作文练习【四】
Perhaps everybody will think: Why, why are the English levels of Li XinYing and Liao ShaoTing so superb ? Let me tell you: Liao ShaoTing and I have entered the continuation class , were taught by the British teacher and American teacher, However, nature of the tuition fee but also" the price is high". But this continuation class is very interesting, make the English levels of Liao ShaoTing and I very terrible. Friends, do you want to have so very superb an English levels of Liao ShaoTing and me too? Let's enter the English continuation class that the foreigner taught!
In addition, I want to talk to everybody: Liao splendid graceful Japanese with a girl who calls Cai YiFei, I have studied one point . But can not only any,it can't say not write. Have certainly entered the continuation class too! It was Japanese teachers that taught. If you want to have a try of, can enter the continuation class . Oh, I say and make nonsense and know everybody support the articles of I at so much saying another word! Hey, will not say more , so as not to take up more Web site space and has not written out any good composition . Friends, learn the languages of various countries well , have very great uses to you accurately!
现象解释类作文练习【五】
【意思】：修改；根据原著重写。
现象解释类作文练习【六】
醒来时，四周是白雪一片，睁开眼便是众多的亲人，我的醒来让他们惊喜不已，他们喊来医生，有小心翼翼地问我感觉怎么样，我只是摇摇头，表示没什么大碍。他们都只是叹了口气，然后揉揉眼睛，走了出去。
他们哭了。
我竟有些震撼，我现在只想祖母，我只想见她，她难道不爱我了吗？还是不知道我住院了？我哭着喊着，只想早一点见她，因为，从小我就爱黏他，她也总是很乐意地抱着我，唱着白娘子与许仙的凄美爱情，：“情默默，意绵绵，郎也心欢，妾也甜，我总是笑笑，她也总是抱着我：“等我们的囡囡长大后也能遇上这样的爱情的，嫁个好老公的，那时祖母我也走的安心了。”
那是爱，欣慰的\'笑，我看着他，也笑了，也许我需要这么一个解释来诠释我内心的欢愉。如今，祖母却消失不见了，而我却在医院等着她两个礼拜。
出院后，我去了她家，蜘蛛网密布，原来的房子有些旧了，爸妈红着眼，撇过头去，我摇着他们的身体，问祖母的下落，他们告诉我的是祖母去旅游了。猜疑，我大声吼着“我不信”，可最后他们还是把我拉走了。
出院后，我总觉得他们总是很小心，好像有什么事瞒着我，那时我已十三岁，早已明白了几分，我猜疑祖母可能了，可是我又说不出所以然。
那天，爸妈吵得很凶，我蹑手蹑脚的在门外偷听着，他们讲到了祖母，妈妈说祖母的丧礼已经办好了，爸爸看了妈妈一眼，说：“是我们害了她，如果小A不那么任性，也许她就不会了”，妈妈说：“这都是命，就算她不替A挡车，她也会的。爸爸没说什么，可我却将他们的谈话听的分明，我的泪流了下来，记忆也随之清晰。
那天我拉着祖母的手，要祖母给我买油炸东西吃，她却因我吃的不健康而拒绝给我买，一气之下，我挣脱他的手跑了出去，一辆面包车却撞了上来，祖母疯了似的跑过来……
也许他们永远不是最好的解释。
现象解释类作文练习【七】
【习作题目】
Students Grading of Their Teachers
1．学生给老师打分已很普遍；
2．人们对其持不同态度（肯定或否定的态度）；
3．你的看法。
【习作解读】
显然，此任务是写一篇议论文，主题为对学生给老师打分的现象进行议论，开放性较大。学生应根据实际情况，从多个方面阐述其原因并表达自己对这种现象的观点和态度。该话题更加贴近学生的实际生活，但有一定的语言难度，也有一定的思想深度。通过此文的写作，也从侧面提示了学生在注重写作基础训练的前提下，也应该注重培养积极思考、灵活运用、自由发挥等能力。
此次的写作任务出题相当巧妙，写作内容涉及的词汇和句型都属于新课程标准范围。题目在考查学生写作能力的同时，也在考查学生的分析判断能力及高度概括能力。富有想象力的学生写出的文章可能生动而富有灵性。此题目能引发学生对平日习以为常的行为进行反思，学会换位思考，这对中学生的性格和品德培养非常重要。
【习作展示】
Students Grading of Their Teachers
Nowadays, a lot of schools ask their students to contribute to grading their teachers. As a teacher, it is their responsibility to satisfy their students in all aspects. Meanwhile, it is admirable that school teachers prefer to expose themselves to their students.
If the system of grading of teachers by students is introduced, it will benefit students, teachers and the administration of the school for a number of reasons. For one thing, the system will give teachers and the administration of the school an insight into the minds of the students and show whether the teachers are successful in getting their lessons understood by the students; for another, it will also encourage the good teachers to continue their efforts and motivate themselves. What is more, it will expose those who are not doing enough and will lead them to correct their teaching methods as well as their attitude towards students. Thus the quality of teaching will certainly improve.
In a word, it is a promising concept and will bring surprisingly good results if applied with the right conditions.
【习作点评】
作者观点明确，赞成学生给老师打分。作为老师，就要做一个让学生满意的老师。这样，不仅对学生、学校有利，而且对老师本人也有利。这样，老师就会从另一个角度重新审视自己，看自己是否是一个成功的老师。如果得到学生的认可，这将是对自己的一次鼓励，为继续前行增添动力。如果学生的认可度不高，老师就应进行反思，调控教学方法和教学态度。这样，教学质量肯定会提高。作
者用简洁、明快的语言以及自己的经历列举了充分的论据，内容充实，贴近生活。For one thing, for another, what is more, in a word等过渡词的使用，是短文结构清晰，层次分明。最后，最值得一提的是，文中多次正确运用的高级词汇和复杂句式，给文章增添了不少文采。综上所述，这是一篇不可多得的佳作，值得向大家推荐。
二、写作模板
此模板适用于社会现象类议论文。参考模式如下：
Nowadays, there exists an increasingly serious social/economic/environmental There are a couple of reasons behind this problem/phenomenon. For one ；Based on the above discussions, I can easily forecast that more and more people
Nowadays, there exists a common phenomenon—with the development of the Internet, more and more people tend to send electronic cards instead of paper ones to their friends and relatives when an important holiday comes.
There are a couple of reasons behind this phenomenon. For one thing, compared with the traditional cards, electronic cards are more lively and interesting. They can give not only pictures but also sound and animation. For another, there are many websites online which offer varieties of cards for you to choose from. What is more, with the popularity of the electronic cards, less paper is used in making paper cards, which does good to our environment.
Based on the above discussions, I can easily forecast that sending greetings by using electronic cards will be accepted by more and more people, not only the young ones.
三、写作指导
写作思路是先列出一个具体的社会问题或者现象，然后分析产生的原因和产生的影响，最后提出解决问题的办法，或者得出结论，或者提出个人看法，或者预测前景。
论点、论据、论证是议论文的三要素。论点是作者对所议论问题所持有的见解和主张，论据是用来证明论点的事实和道理的根据；论证是用论据来证明论点的方法和过程。一般来说，议论文每段都有主题句来确定论点。论证的方法很多，但最常用的是因果分析法。即：分析事实与论点的因果关系，指出取得结果的原因是所要证明的论点，从而达到论证的目的。
在近几年的高考中，议论文的比重占得越来越多，议论文的.出题形式可以多种多样，有看图写作、图表、表格、书信等各种类型，但文体实际是议论文，而有时是夹叙的议论文。议论文的写作要点是：
1. 观点鲜明，文章一定有一个明确的中心论点。
2. 层次分明，一个中心论点通常有几个分论点支持，不同层次之间要分明，过渡清晰自然。
3. 最后一段一般要总结全文，得出一个符合逻辑的结论，突出中心思想。
4. 一般采用一般现在时。
5. 语言简洁有力，一般不采用口语。
四、巩固练习
1.【练习题目】
2010年上海世界博览会期间，上万的青年志愿者参加志愿工作，请你谈谈对此现象的看法。
【参考范文】
During the period of holding the 2010 World Expo in Shanghai, tens of thousands of young citizens are participating in volunteer work, hoping to devote themselves to the grand occasion. As far as I am concerned, everyone ought to enter for it. Here are the reasons I want to mention.
It can be argued that the advantages of doing unpaid volunteer work are enormous, because volunteer work is actually a two-way street. First of all, volunteer work should always benefit people who need help. Those who need help will feel happier due to our immediate help. On the other hand, as far as the young people ourselves are concerned, we have more opportunities to develop the sense of responsibility, independence as well as interpersonal skills in the process of helping others.
Through this kind of work, we become confident and mature. In addition, we can make many friends and increase our chances of getting the jobs of our dreams. Furthermore, volunteer work plays an active role in building up a harmonious society.
In a word, it is of great value for the young adults to offer volunteer work. The youth volunteers do make a difference by the voluntary work! Why not join them and do something for our country?
2.【练习题目】
某些中学生为了显示自己成熟或表明自己醋而吸烟。请写一篇120词左右的短文，列举吸烟的危害，并提出建议。
【参考范文】
I am sorry to know that more and more middle school students begin to smoke. I think it is wrong to believe that smoking is cool and even think that smoking makes you appear to be mature. In fact, smoking is not cool but very dangerous.
First, smoking can do much damage to health. Scientific researches show that smoking can lead to heart diseases, cancers and other problems. It is reported that about 5 million people die of diseases related to smoking each year all over the world.
Second, it is a waste of money to smoke cigarettes. Smoking can cost a great deal of money. Once you are addicted to it, it is difficult to give it up.
What’s more, smoking can cause fires easily, which may do great damage to your life and your surroundings.
So give up smoking at once! Only in this way can you keep healthy forever.
3. 【练习题目】近年来，越来越多的中学生出国学习，出现了所谓的中学生“出国热”。请根据以下提供的信息，谈谈自己的看法。
1）良好的语言环境，更利于语言学习。
2）拓宽视野，学习国外先进的科学技术。
3）传播各民族间的不同文化。
参考词汇：媒介，中间人：mediator
【参考范文】
In recent years, studying abroad has been popular. Tens of thousands of Chinese middle school students have gone to foreign countries to study．Many people are trying their best to apply to go abroad.
There are a number of reasons for attending schools abroad．First, students who are studying abroad can act as mediators between people of different cultures. They can communicate with each other directly and learn about different cultures. Second, they can learn much more advanced knowledge of science and technology from foreign countries and experience different education methods．Third, they live in foreign countries and take classes given by foreign teachers. As a result, they can learn foreign languages much more quickly.
Therefore, it is advisable to attend schools abroad.
4.【练习题目】随着经济和社会的发展，道路上的私人小汽车越来越多。请根据自己的观察和理解，谈谈自己的观点。
【参考范文】
With the fantastic development both in economy and in society in China, the number of people who own private cars is on the rise. Some people have bought cars of their own, and others are planning to buy cars. But I strongly object to the increase in developing private cars.
I hold that automobiles will give rise to a series of problems. In the first place, as more and more cars are produced and run on the road, a large volume of poisonous gas will be given off, polluting the atmosphere and causing actual harm to the health of people. Next, private cars contribute to traffic jams so greatly that the advantages gained in comfort and freedom are often cancelled out by the frustration caused by traffic jams. The last problem is the increasing number of car accidents that have killed and will kill a lot of people in a friction of a second.
In a word, although automobiles have been playing a vital part in the daily activities of our society, they also bring us numerous troubles such as more serious environmental pollution, more traffic accidents and more energy consumption. They drink up huge amounts of fuel and throw out huge amounts of pollutants. Jams waste our precious time. Therefore, I am against developing private cars.
