求历年的英语六级考试作文范文（小学生‘一件难忘的事 作文提纲）

今天金大话教育网小编为大家带来了求历年的英语六级考试作文范文（小学生‘一件难忘的事 作文提纲），希望能帮助到大家，一起来看看吧！

本文目录一览：

• 1、求历年的英语六级考试作文范文
• 2、小学生‘一件难忘的事 作文提纲
• 3、物理创新科技作文的范文

求历年的英语六级考试作文范文

1989～1991年
<P>1989年1月六级作文题及范文</P>
<P>Directions: The Problem of Human Population <BR> 范文：<BR> It has been estimated that a thousand years ago there were less than 400 million people on earth. However, in the recent thousand years human population has increased nearly 20 times. Nowadays the world population has reached more than 7000 million. The population explosion has caused many problems. Generally, they come down to four major ones.<BR> First, a lot of people can't get employment, which is a universal problem in the world. Second, in developing countries there are not enough shelters for too many people and so people are not properly housed and even are exposed to the elements. Third, in underdeveloped countries a lot of people suffer from hunger because of food shortage, which in turn causes many other problems, malnutrition, disease, etc. Fourth, there are not enough schools for so many people and so a lot of people are illiterate.<BR> Therefore, to eliminate these problems, human beings should take effective measures to control population. <BR> <BR>1990年1月六级作文题及范文 </P>
<P>Directions: <BR>问题：城市交通拥护解决方案：（solution）<BR>1. 建造（lay down）更多道路<BR>优点：降低街道拥护程度加速车流（flow of traffic）<BR>缺点：占地过多<BR>2.开辟（open up）更多公共汽车线路<BR>优点：减少自行车与小汽车<BR>缺点：对部分人可能造成不方便<BR>结论：两者结合<BR>How to Solve the Problem of Heavy Traffic </P>
<P>范文：<BR> The urban traffic is getting increasingly crowded nowadays in China. The roads are pakced with cars, bicylces and pedestrians and traffic jams, bus delays and traffic accidents are a common scene.<BR> Then how to solve this problem? Some suggest to lay down more roads to make the traffic less crowded and speed up the flow of traffic. Others believe that we should open up more public bus routes, so that more people will take the public buses instead of travelling by cars and bicycles.<BR> Though above two views sound reasonable, they have their own drawbacks. The fomer may take up much land which could be used for farms and houses. The latter may cause inconvenience for those who are used to travelling by car or bicycles. I think the best answer to the traffic problem is a combination of the two. More roads can be built to hold more traffic and meanwhile more public bus routes can be opened up to those who prefer to use the public transportation.<BR> <BR>1990年6月六级作文题及范文 </P>
<P>Directions: Four suggested solutions to this problem are listed below. You are supposed to write in favour of one suggestion(ONE only)and against another(ONE only). You should give your reasons in both cases.<BR>四种可能解决住房问题的方案<BR>1．多造高层建筑<BR>2．向地下发展<BR>3．建造卫星城市<BR>4. 疏散城市人口<BR>How to Solve the Housing Problem in Big Cities<BR> <BR>范文：<BR> The shortage of housing is one of the most serious problems facing many big citeis in China. Though the government has spent a large sum of money on housing, the investment has produced little financial return and a housing shortage still persists. Two generations sharing one room and newly-married couples finding it difficult to have a house of their own are still common cases. Housing shortage is a problem that requires and urgent solution.</P>
<P> People's attitudes towards the solution to the housing problem are different. Some suggest to build more high-rise apartments; others believe to develop underground housing areas. I am in favour of the former opinion. For one thing, it is cheaper to build above gound than below. For another, living underground for a long time will do harm to people's health. Above all, people are unwilling to live unerground with artificial lighting and they prefer to live above ground to enjoy the sunshine.<BR> Although there may be some other ways to solve the housing shortage problem, I believe to build more high-rise apartments is one of the promising solutions to the housing problem. <BR> </P>
<P>1991年1月六级作文题及范文 </P>
<P>Directions: <BR>1．人类面临的问题（如能源、疾病、污染、人口等）<BR>2．悲观的看法（人类将无法生存）<BR>3．人类的智慧出路<BR>Man Is to Survive<BR> </P>
<P>范文：<BR> Nowadays humanity is faced with a lot of troublesome problems: energy crisis, cancer, pollution, population explosion, etc. They are threatening the survival of humanity. Therefore, some people are pessimistic about the future of humanity.<BR> They are pessimistic because they think that limited energy on earth will be exhausted soon; incurable diseases are threatening more people's lives; pollution is worsening the environment; population explosion will make food shortage even more serious.<BR> Actually they needn't worry too much about these problems. Scientists will have developed new energy resources by the time oil and coal are used up. Besides, scientists are making a thorough study of genes and they will manage to cure cancer by adjusting the arrangement of genes. They are also making efforts to control pollution and population. Furthermore, all the governments in the world are concerned about these problems and they have taken measures to solve these problems.<BR> Therefore, we have every reason to be sure that human beings will conquer nature but they will never be conquered.</P>
<P>1991年6月六级作文题及范文 </P>
<P>Directions: For this part, you are allowed 30 minutes to write a composition based on the graph below.</P>
<P>Outline:<BR>1.Rise and fall of the rate of car accident as indicated by the graph;<BR>2.Possible reason (s) for the decline of car accidents in the city;<BR>3.Your predictions of what will happen this year.<BR>Food Year 1986 1987 1988 1989 1990<BR>Grain 49% 47% 46.5% 45% 45%<BR>Milk 10% 11% 11% 12% 13%<BR>Meet 17% 20% 22.5% 23% 21%<BR>Fruit and vegetables 24% 22% 20% 20% 21%<BR>Total 100% 100% 100% 100% 100%<BR>Your composition should be no less than 120 words and you should quote as few figures as possible.<BR> </P>
<P>范文：<BR> The graph shows the changing rate of car accidents in Walton city in 1990. The first two months of 1990 showed an increasing trend. The rate rose to 32 in March but fell to 26 in June. From June on the rate was rising again and reached the peak point 39 in August. After August the rate began to decline, and eventually dropped to the lowest point 16 at the end of the year.</P>
<P> The highest rate in August was due to unfavorable weather conditions. Humidity and high temperature make drivers impatient, which easily leads to car accidents. The high rate in the first half of 1990 was also caused by the bad weather condition. In Walton City the excessive rain comes at early spring. The rain made road slippery, which often resulted in car accidents.<BR> This year the pattern is expected to change. The city government has raised fund to improve the road condition. Two new roads will be finished at the beginning of this year and are expected to open to traffic soon. Furthermore, the new road regulation provides that in summer every car must be air-conditioned. With all these precautions, I'm sure that the rate of car accidents will be much lower this year. </P>

1992～1994年
1992年1月六级作文题及范文

Directions:
1．电影观众越来越少
2．电视观众越来越多，因为...
3．然而，还是有人喜欢看电影，因为...
Film Is Giving Way to TV

范文：
Nowadays there are fewer and fewer cinema-goers and the cinema is slack. However, there are more and more TV viewers. There are many reasons for this social phenomenon, but in general, they come down to three major ones.
First, film tickets are too expensive, while it doesn't cost much to watch TV at home. Besides, it is time-consuming and inconvenient to go to the cinema. Nevertheless, it is very convenient and comfortable to watch TV at home. You needn't go out but just need to turn on the television. Most important of all, if you don't like the film you'll have to sit through it; but if you don't like one programme on TV, you can shift to another.
However, some people still go to the cinema. They usually go to the cinema for the purpose of social contact. Young people go dating there. Other people go to the cinema as an activity. For example, schools often organize children to go to the cinema. Sometimes employees also go to the cinema with the film tickets presented by their institutions.

1992年6月六级作文题及范文

Directions:
1．新世纪科技发展的前景如何？
2．新的科学技术会给社会带来什么好处？
3．新的科学技术会给社会带来什么问题？
4. 你怎样对待新世纪的挑战？
Looking Forward to the Twenty-first Century

范文：
The new century is approaching. It can be expected that there will be a breakthrough in life sceience and space science in the 21st century.
First, scientists will conquer incurable diseases through the transformation of genes. With the same technology they can breed new species of animals and even human life in the laboratory. Most important of all, they can decelerate aging and prolong life.
Besides, permanent stations will be set up in the moon or other planets or stars so that scientists can make a thorough study of the moon and other planets or star. Most probably life will be found in other stars in universe or the planets or stars suitable for the human existence will be discovered.
However, the scientific development will also bring about some social problems. How should we regard from an ethical perspective the one who is bred through the gene technology in the laboratory. How can the police identify the criminal from a group of people with the same DNA?

It is quite natural that we will meet problems in the scientific and social development. Therefore, we should be prepared to meet new challenges.

1993年1月六级作文题及范文
Directions:
1.近年来中国城市中的摩托车
2.摩托车的优点和缺点
3.你对我国城市中摩托车发展前景的看法

范文：
Nowadays, motorcycles are popular around us. They have be come an important means of transport in Chinese cities. Compared with the bike and the car, the motorcycle has its own advantages.
First, it is quite flexible. When there is a traffic jam, it can go through the cars that are held up in the street. Besides, it doesn't consume much petrol. Most important of all, it can carry another person at the back.
But every coin has two sides. The negative aspects are also apparent. To begin with, it's very complicated to get qualified for riding a motorcycle. You'll have to go through a series of procedures to get a riding license. Furthermore, the maintenance is expensive. Worst of all, it costs a big sum of money to pay for the license plate, especially in Shanghai.
In conclusion, it has both favorable and unfavorable aspects. However, if the authorities concerned simplify the procedures and reduce the cost of the license plate, the motorcycle will be accepted by more people.

1993年6月六级作文题及范文
Directions: For this part, you are allowed 30 minutes to write a composition on topic My View on Opportunity. You must base your composition on the following instructions (given in Chinese):

有些人认为机会是极少的， 另一些人则认为人人都有某种机会。你的看法如何？写出你的观点，说明你的理由并举例。在你的文章结尾处不要忘记写出你的结论。

范文：
Different people have different views on opportunity. It is held that there are few opportunities. But it is also held that there re opportunities everywhere.
Those who hold the first opinion think that there are too many people and so there is always an intense competition for limited opportunities. In contrast, those who hold the second view think that if one is not prepared, he can hardly have any opportunities; however, if one is prepared, he can have a lot of opportunities.
As to me, I agtee with the latter opinion. Admittedly, there is really an intense competition for limited opportunities, but this is not to say that one can't create opportunities himself. In most cases opportunities are created by people themselves. For example, many people lost their jobs in recent years. Some people wait for opportunities in vain. However, others create opportunities themselves and get self-employed. Eventually they become employers themselves.
Therefore, to some extent, one can take his destiny into his own hands.

1994年1月六级作文题及范文

Directions: For this part, you are allowed thirty minutes to write a composition on the topic We Need to Broaden Our Knowledge. You should write no less than 120 words and you should base your composition on the outline (given in Chinese)

below:
1. 科学技术是社会发展所不可缺少的
2. 社会科学和自然科学相互渗透
3. 现代大学生需要广博的知识

We Need to Broaden Our Knowledge

范文：
Knowledge is power, especially scientific and technological knowledge. Science and technology are the motive power of the social development. Without them human society could never have developed from primitive society to modern society. Therefore, to conquer and transform nature, we must master scientific knowledge.

However, social knowledge is also essential. Without it we can not understand society and don't know the law of the social development. As a result we are unable to govern society. Therefore, besides scientific knowledge we need to master social science, philosophy, politics, history, aesthetics, etc, so that we can know society from all perspectives and form a correct world outlook.
To meet new challenges in he 21st century, we university students should lose no time to acquire as much knowledge as possible so that we will become qualified successors of the socialist cause.

1994年6月六级作文题及范文

Directions:
1．我理想的职业是什么？
2．为什么我选择这个职业？
3．我怎样为我理想的职业作准备？
The Career I Pursue

范文：
In China young people usually want to be engineers, doctors, businessmen, etc. and few want to be teachers. Unlike most young people I decide to be a teacher. There are many reasons for my personal preference but generally they come down to three major ones.
First, I was born in a teacher's family and so I was greatly influenced by my father. Second, I find that education is important because it is the basis of science and technology and if a country's education is backward, its science and technology will never be advanced. Third, teachers are needed in our country, especially in the countryside.
However, it is not easy to be a qualified teacher. A qualified teacher must have a good command of his specialty. Besides, he should be responsible and devoted to the educational cause. Most important of all, he should be patriotic. To be a qualified teacher in the future I must lose no time to acquire as much knowledge as possible. 'Furthermore I must know the history of our country so as to cultivate patriotism.

1995～1998年
1995年1月六级作文题及范文
Directions: For this part, you are allowed thirty minutes to write a composition on the topic My view on the Negative Effects of Some Advertisements. You should write at least 120 words and you should base your composition on the outline

(given in Chinese) below:
1. 现在有些不良的商业广告
2. 这些广告的副作用和危害性
3. 我对这些广告的态度

范文：
Nowadays ther are a lot of false advertisements in society. They have caused many harms to society. Generally, their harms can be listed as follows.
First, they exaggerate the functions of the goods they advertise and mislead consumers. Second , some advertisements contain obscene contents and bring about spiritual pollution. Third, they seriously damage the credit of businesses because the shops which sell those goods will be distrusted and even considered the conspirators of those advertisers by consumers.
Personally, I am usually vigilant against any advertisements and so I have never been taken in. However, some people are credulous and are easily taken in. Therefore, in my opinion, effective measures must be taken to ban false advertisements and protect consumers' interests. First, all the advertisements must be strictly censored by the authorities concerned before they are published. Besides, severe unishment must be inflicted on those who publish illegal advertisements.
In conclusion, false advertisements must be eliminated in our society.

1995年6月六级作文题及范文

Directions: For this part, you are allowed 30 minutes to write a composition on the topic:Should Firecraekers Be Banned'?

You should write no less: than 120 words and you should base your composition on the outline (given in Chinese ) below:
1．有人认为放鞭炮是好事，为什么?
2．有人认为放鞭炮是坏事，为什么?
3．我的看法。
(Suggested key words: firecrackers(鞭炮) set off/let off(放鞭炮 )
Remember to write your composition neatly.

范文：
Different people have different views on firecrackers. Some people think that firecrackers should be banned because they endanger people's lives and social security. However, others hold that firecrackers houldn't be banned because they will drive evil spirits and bring luck.
As to me, I am in favor of the first idea. The reasons are as follows. First, addmittedly, letting off firecrackers will create an auspicious atmosphere, but it will not really bring luck to let off firecrackers. Besides, it is dangerous to let off firecrackers. It was reported that letting off firecrackers causes a lot of accidents, fire, injury, and even death every year.
However,it is our traditional custom to celebrate an important occasion by letting off firecrackers.How can we let off firecrackers whithoug causing accidents? The possible solution is that the substitute for the firecracker should be invented so that we can celebrate an important occasion whitout causing accidents.

1996年1月六级作文题及范文

Directions: For this part, you are allowed thirty minutes to write a composition on the topic Why I Take the College English Test Band 6. you should write at least 120 words and your composition should include the following two points (given in Chinese)：
1. 有人认为没有必要参加大学英语六级考试（简称CET-6）。
2. 我参加CET-6考试的理由。

范文：
Some students think it unnecessary to take CET-6. They hold this views because CET-6 is not compulsory and they can get a degree so long as they pass CET-4. However, I think it necessary and beneficial to take CET-6. The reasons are obvious.
First, if I decide to take CET-6, natually, to pass CET-6 becomes a goal I set myself and with a goal to strive towards I will continue to study English hard. Of course my English will not be neglected in the third and fourth years. Besides, if I pass CET-6, I can get a certificate which, to some extent, shows my experience and qualification so that I can compete with other in job-hunting. Most important of all, a good knowledge of English will help my work and scientific research in the future.
All in all, taking CET-6 does good both to my studies and to my personal advancement.

1996年6月六级作文题及范文

Directions: For this part, you are allowed thirty minutes to write a composition on the topic Health Gains in Developing Countries. You must base your composition on the following instructions (given in Chinese):
1. 以下图为依据描述发展中国家的期望寿命（life expectancy）和婴儿死亡率（infant mortality）的变化情况。
2. 说明引起变化的各种原因。

范文：
In the developing countries great changes took place in life expectancy and infant mortality in the period from 1960 to 1990. In 1960 life expectancy was very low, while infant mortality ws very high. However, in 1990 life expectancy increased, whereas infant mortality declined.
There are many reasons for the changes, but in general, they come down to three major ones. First, their living conditions were improved. In the old days people in the developing countries suffered hunger and were exposed to the elem

小学生‘一件难忘的事 作文提纲

一、教学目标：
1、能按事情发展顺序记一件事，把事情的经过写具体。
2、学会列作文提纲。
二、教学重点：确定写作材料，列好作文提纲。

第一课时
教学目标：
1、明确习作要求：按事情发展顺序列提纲、作文，把事情的过程写具体。
2、懂得作文的步骤。
3、确定要写的一件事，能列好作文提纲。
课前准备：回忆生活中难忘的事情、小黑板。
教学过程：

一、激发兴趣。
1、同学们，在校园生活，家庭生活、社会生活中，一定发生过许多令你难忘的事情。那么，哪些事情使你难忘呢？
2、交流。适当板书。
二、确定材料。
1、比较事情，哪一件更难忘？
（1）．没听妈妈的劝告，把钱放在浅兜里，结果跑丢了。
（2）．不听爸爸的话，在火车站乱跑，与爸爸失散，急得爸爸差点犯了心脏病。
（3）．不遵守交通规则，骑车闯红灯，被警察批评。
（4）．不遵守交通规则，翻跃隔离栏杆，后背被铁签子划破，缝合了十几针，留下了一道明显的疤痕。
2、四人小组讨论、全班交流。
（以上所举四个事例，都可以称得上难忘，但是比较起来就可以发现：1、2虽然事出原因都是不听家长的话，但所犯错误造成的结果不同，程度不同。所以2要比1难忘。3、4虽然事出原因都是不遵守交通规则，但一个只是被警察批评，另一个是以“血”换教训，显然，后者比前者令人难忘。
3、从材料中选择最难忘的，而且是真实的写在草稿本上。
三、列提纲、指导方法。
1、要想把文章写得清楚、明白，应该按一定的顺序写。可采用倒叙、顺序、插序的手法，先编写提纲是帮助我们写好作文的有效方法。
2、自学习作提示，初步列好作文提纲。
3、交流，及时指正不足。
4、学习范文《阿姨送我上医院》，列出提纲。
5、对照课文，查漏补缺。（经过部分的提纲要列具体一些）
提纲只是一个框架，要想写得好，还要注意描写人物的语言、动作、神态、心理，尤其要抓住它们的变化来体现情感的变化，从而更好地突出中心。与此同时，如果再能抓住某种事物作为线索，那么文章将更精彩。例如：有一个小同学写雪天骑车带人造成了表哥骨折这件难忘的事，就抓住了看车、骑车、推车、撞车这个线索，同时又抓住了高兴、得意、难过这些情感的变化，使文章有声有色，富有感染力。
同学们，不妨你也试着来写一写吧。
四、开始作文。
1、学生列好提纲，开始作文。教师巡视指导，并了解学生的习作情况。

第二课时
教学目标
1、学生继续作文，完成习作《一件难忘的事》。
2、指导学生修改作文，进一步明确把事情的过程写具体的重要性。
教学过程

1、学生继续作文，教师巡视了解列提纲、作文情况。（所列提纲能不能发挥最大作用）
2、选评佳作和有问题的作文。
评议的标准：（1）选事是否准确；（2）是否按事情发展顺序列好提纲；（3）事情的过程是否写具体。
板书：一件难忘的事
选取事例（难忘）
列提纲：按事情发展顺序，主次分明。
整体感觉：真实而不虚伪，具体而不罗嗦。
（这次习作教学的难点是写出这件事为什么是难忘的，所以选材是关键，着力指导。）

小升初作文特辑(四)

〖一〗先审题∶写一件难忘的事，或者类似于这种内容的作文，同学们一定写过不少。怎样写好这种文章，关键是取材，取材取得好一半已成功。若你取材让人一看，便觉这事经常发生太平常了，也没有让人怀念的地方，你自已也很难写得好..

今天，亲泥老师要教的《记一件难忘的事》，是写有关汶川大地震的事。这事一定难忘吧，同学们难忘，全国人民都难忘。当然取材并非一定要大事，小事也可，只要“难忘”。因为要写的事大家都知道，故以地震一事为素材

〖二〗列写作提纲∶1用倒叙手法开头2写地震中几个典型的片段3这事让人难忘. 还是老办法，边写边议。下水作文《记一件难忘的事》

去年六月十二日早晨，也就是在汶川大地震的一个月后,当我来到学校，就有一种异样的感觉∶心情特别沉重。学校门口挂着一幅黑底白字的大横幅——深切悼念5·12大地震中遇难的同胞。不少同学胸前别了一朵醒目的小白花。昨天，老师已经交代，为纪念汶川大地震,今天下午二点二十八分全国都要举行哀悼活动。 【写到这里，亲泥老师要讲几句老话。你看上面话不多，都扣住了主题，这叫切题，一开始就写到点子上。如果你绕来绕去，先写爸爸送我到学校，又写校园门口热闹的景象，看上去很美，但没切中要害。批卷老师整天看文章，看得头晕目花，你的“形象分”已经打了折扣。如果你还割舍不了几句“好句子”，来个画蛇添足，那更不好了。】

难忘的时刻来到了。二点二十八分开始，我们开始了默哀三分钟，就在同一时刻校园内外汽笛长呜，大地呜咽。我们全班同学神情壮严，全体肃立.我低沉着头,泪水在眼眶打转，思绪在心中翻滚，抗震救灾的一幕幕动人事例，又出现在我脑海之中。 【这一段交待了默哀时的情境。下面要写的是几个电视上看到的典型的画面，这种让人难忘的画面，运用排比段写出抗震救灾的难忘一刻】

"呜-------".汽笛声中，我仿佛看到风尘仆仆的胡锦涛爷爷，来到倒塌的大楼下，来到住满伤员的救灾棚里，亲切慰问受灾群众。看到胡爷爷的到来，灾民们擦干了眼泪，坚定了起抗灾的信心。【没有豪言壮语，都是一些平实的语言，却显得很亲切】

汽笛声中，我仿佛看到亲人解放军叔叔，冒着生命危险，从直升飞机上跳下来。看到一大包一大包的食品和饮用水从天而降。战士们送来了维持灾民生命的食品，也带来了全国人民的殷切的关怀。

汽笛声中，我仿佛看到正在上课的老师，看到大地在震动，楼房在摇晃，有的老师把孩子们搂怀里，有的老师把孩子们一个个推出课堂，而自己却被压住。

汽笛声停止了，可我依然沉浸在悲痛的气氛之中。我心中默默祈祷∶愿灾区早日重建，愿灾民早日安康。 【抗震救灾是个大场面，化上许多笔墨都不会少。但文章抓住了几了大家十分熟悉的镜头，放在默哀时的“镜头回放”，再运用排比的方法，概括了许多内容。因此作文的谋篇布局十分重要，这种方法如用得好，能让文章增色。】

2009年6月12日——我永远难忘的一天，永远难忘的一件事。【结尾再点睛，与开头相呼应。因为这一天不是属于你“小我”的一天，而是全国人民都特殊的一天。】

物理创新科技作文的范文

金大话英语培训网(https://www.jindahua.cn)小编还为大家带来物理创新科技作文的范文的相关内容。

鸟巢、水立方中的科技
大家都知道，北京2008奥运会体育中心是一个很大很漂亮的鸟巢样式，国家游泳中心则是一个很漂亮的充满着气泡的水立方，但是庞然大物下面究竟隐藏着哪些方面的技术呢？今天科技小论文将带领您解开这些什么的建筑物。

首先我们来说“鸟巢”,鸟巢建筑是基于国际建筑领先地位的，他是我国乃至世界在空间技术的应用方面的一个重大突破，也是首次将空间技术应用到建筑物结构框架上的一个重大创举。它是由我国多为建筑方面的专家通过进行可行性验证和安全构架验证而决定实施的一个重大工程，于是 鸟巢成了我国2008奥运会的一大标志之一。他将向全世界展示一个全新的中国。

首先在设计结构上，采用空间技术的鸟巢，在最大程度上介绍了对原材料的需求，节约了成本，并且形象完美纯净，是奥林匹克的一大亮点。

“水立方”以方型的建筑形态体现与“鸟巢”和谐共生的中国文化理念。“水立方”钢结构采用了新型的基于气泡理论的多面体空间钢架体系，属于国内外首创，是一个具有很高科技含量的建筑，结构设计面临着许多国内外前所未有的课题题将通过对新型空间结构几何构成与优化、结构整体分析与设计、结构风雪冰试验、各类节点和杆件计算方法与实验、室内环境声光电热研究、ETFE立面装配系统研究等方面的研究，完成将最终的成果直接应用于国家游泳中心的设计与施工，确保工程安全、经济、合理，同时纳入国家新版网格结构技术规程等课题立项目标。

大家知道了吧 原来水立方和鸟巢是这么回事，希望大家能够在生活中多思考，多长一双发现创新的眼睛，相信将来你也可以创造出一些有价值的想法。

观察玉米的生长过程
种 玉 米
3月20日 星期四 晴
今天科学课上，李老师拎着一袋粉红色的种子走进教室，笑眯眯地说：“同学们，今天这节课我们去实验基地种玉米。”老师向上推了推眼镜，接着说：“这种玉米和其他的玉米不同，别的都是金黄色的，可现在要种的玉米是粉红色的。”
“为什么呢？”同学们疑惑不解地问。
“问得好！为了防止虫蛀，这玉米种子上是拌了粉红色的防虫药。”
李老师把我们领到了花卉种植园，拿起了一只花盆，示范着种玉米给我们看，他边做边说：“你们在种的时候要注意3点：一是要把土松开，二是不能把种子插得太深；三是要等把种子种下去才能泡水。”
该我们自己动手了。我按照老师的方法，先在花盆底部的小洞上盖上一块小瓦片，然后将泥块敲成豆子般大小的碎土装入花盆中，再轻轻地将三颗玉米种子插进花盆内的土里（光滑椭圆的一头朝上，扁瘪的一端插下），最后将花盆慢慢地浸入水中一会儿，使泥土湿透。等这一切都做完，我们又按照李老师的吩咐，将花盆搬进了塑料温棚。
一节课的时间，一盆盆种有玉米种子的花盆整齐地排列着，它能发芽吗？我们期盼…… （王沈绩）
（简评：小作者具体地描写了自己种玉米种子的过程：盖洞——碎土——插种——浸水——移盆，恰当地运用了一些表示动作的词语。）

玉 米 种 子 发 芽 了
3月28日 星期五 晴
中午，老师说：“现在我们去大棚里看看我们种下的玉米种子，看看它们发芽了没有。”
我们高高兴兴地来到大棚，“哇，好热呀！”
“真闷人。”
“这儿有温度计，三十度呢！”
“难怪这么热。”……
我们像小鸟一样叽叽喳喳说个不停。
“大家快过来，玉米种子发芽了!”不知谁喊了一声，我们立刻跑到花盆旁去看。真的，有的玉米种子发芽了，嫩芽像个紫红色的、圆滚滚的小柱子，已经从土里顶了出来，我们用直尺量了量，高的有一厘米，矮的约半厘米，有的还没发芽。老师说：“再过几天会发芽的。”
一会儿工夫，我们一个个汗流满面，有的甚至解开衣服扇风，老师见此情景，说：“我们再等几天来观察一下吧，下次将会有更大的收获。”于是，我们都走出了温棚，准备下次再来观察。(陈 阳)
（简评：习作中写出同学们看到种子发芽的惊喜，并通过进入温棚时的议论，暗含着种子发芽所需的温度。）

玉 米 在 长 高
3月31日 星期一 晴
“小棍棍”的影儿常在我脑中浮现，它长大了吗？今天我们决定再去看看它们。
在远处我们就看到绿色的一小片，叶子在微风的吹拂下轻轻摆动。原先的“小棍棍”不见了，取而代之的是一张张细条形的、嫩嫩的绿叶，我们真是又惊又喜。老师告诉我们这是两张真叶，我们蹲下来仔细观察，看到它的茎有圆珠笔笔芯那么细，外皮仍像原来一样紫红，叶子的边缘一圈也是紫红的，外面的大叶子裹住里面的小叶子，像妈妈抱着小宝宝一样。同学们都拿出尺子量它的长度，最长的叶子有六厘米，宽两厘米左右，真不可思议。
“它们在温室里已健康发芽，得让它们出去晒晒太阳了，我们现在就将花盆搬到棚外去吧。”老师吩咐道。我们又一个个将花盆搬出去。
“玉米种子长得真快呀？”我们情不自禁地赞叹道。 （田佳敏）
(简评：小作者能将玉米苗茎的粗细和大家熟悉的圆珠笔笔芯作比较;将大叶子裹住小叶子比喻成妈妈抱着小宝宝;叶的长度、宽度用具体的数字来说明。这三种说明方法准确地描写了自己观察到的玉米生长情况。 )

玉 米 苗 长 粗 壮 了

4月15日 星期二 晴
已经有半个多月不去关心玉米了。
中午写字课之前，老师又带我们去观察玉米。于是我们又随着老师高高兴兴地来到花圃区。
“你们发觉玉米苗有啥变化了吗？”
“长高了。”
“比原来粗壮了。”
“叶子也多了、大了。”同学们纷纷说道。
“大家快看，花盆下面的小洞里冒出了白色的‘细线’。”不知谁大叫了一声。同学们一个个端起花盆，仰起头，盯着花盆底看，果真看到一根根“白丝线”歪歪扭扭地露在外面。
我们带着这些问题去请教老师，老师告诉我们：玉米苗长大了，长得粗壮了。那“白丝线”是玉米苗的根须，看来，花盆已经不能适应玉米苗的生长，我们得马上要给玉米苗安个新家，让它自由地、更好地生长。(蒋 璐)
(简评：本文通过对话的形式描写了自己观察到玉米的生长情况：长高、长粗、叶多等特点，尤其是对根须的描写，更带有探究性。)

给 玉 米 苗 安 个 新 家
5月8日 星期四 晴
今天下午，我们全班决定给玉米苗安个新家。
开始移栽了，我们端起花盆，愣住了：怎么把玉米苗移出来呢？如果拔的话，就会把叶子拧断；如果挖的话，可能会把根拔断，真叫我不知该怎么办。这时，我们纷纷跑到老师面前，问：“老师，怎么把小苗拔出来呢？”老师故意摸摸脑袋，说：“我也不知道，自己想想办法呀！”正当我抓耳扰腮、想不出办法的时候，我们恰巧看到我校老花匠也正在给花换盆。于是，我们便凑近仔细观察：只见他用手指从花盆底的小洞往上一顶，像花盆形状的土疙瘩便从花盆里冒出来了。我们也试了一下，可是玉米苗怎么也不肯出来，这时，我们便问老爷爷有什么好办法，老爷爷找来一根小棒，顶住花盆底小洞中的瓦片，再将花盆往下一按。这个办法果然灵，于是，我们像花匠一样，一个个地把玉米苗连土从花盆里弄了出来。
老师又找好了一垅空地，叫我们挖坑，我们用小锹往土里一插，再把小锹一撬，最后往上一提，就这样，一锹一锹地挖，一个小坑挖好了。我们先小心翼翼地把玉米苗放进坑里，再把土掩得平平展展，最后，拎起小桶给玉米苗浇上了水。这样，玉米苗的移栽工作就完成了。
我们看着刚刚移栽的玉米苗，轻轻地说：“玉米苗呀，快快长大吧，长大结出又大又甜的玉米棒给我们吃！”
（朱牧云）
（简评：小作者的题目很吸引人，带有儿童趣味。先写自己在移栽过程中遇到的困难，接着向老花匠请教，最后再写自己移栽的经过，写得有条有理。）

摘 玉 米
6月20日 星期五 晴
今天，老师说去掰玉米了，同学们乐的一蹦三尺高。
到了玉米地，远看玉米就像一位保安，在保护田野。走近一看一个个高大粗壮的玉米，就像一个个卫兵拿者几枚炮弹。
同学们在玉米田里窜来窜去，都在找最大的掰。老师说：“掰那种胡须是棕色的玉米，嫩绿色的还没成熟，还需长几天。”我好不容易找到我自己种的那一棵,盯住一个肥肥胖胖的大玉米。 我把叶子往下一按，左手扶助秆子，右手抓住玉米棒向下一扭一拉，就掰下来了。
接着，我们开始剥玉米，它穿着好几层薄薄的淡绿的“衣裳”，就像一个胆小的小姑娘把自己裹的严严实实。我小心翼翼地给它给它把一件件“衣服”脱下来，越往里面“衣服”越薄越嫩，最里面还有一簇簇粉丝一样的嫩胡须。啊！一粒粒米黄色的玉米新鲜圆润，成几路纵队整整齐齐地排列着，真诱人，我恨不得咬上一口。
不一会儿，我们掰了满满的一桶玉米，看着这丰收的果实，我们真是说不出的高兴。李老师“咔嚓”一声帮我们拍下了甜甜的笑。 （庄毓）

享 受 丰 收
6月20日 星期五 晴
“吃玉米喽！”“吃玉米喽！”大家欢呼着。
老师端着两篓子我们刚摘的、也是刚煮好的、冒着热气的、香喷喷的玉米走进教室。我们一个个谗得像猫见到了鱼口水直流，真想拿了就吃。老师见我们迫不及待的样儿，说：“怎么分呢？”“一人一根。”“闭着眼拿，不准拣。”大家纷纷发表自己的意见。
我们按次序排着队一个个上去拿，有的同学到篓子里摸了一根毫不犹豫地就走；有的在那翻来覆去，不知挑哪个好；还有的歪着头，闭着眼，左挑右选，放在手上掂掂，最后才拿定主意。轮到我了，我想挑个个大的，又不想站在那慢慢挑，免得影响别人，后来我不管三七二十一摸了一根粗粗的就走，睁眼一看，橘黄色的玉米粒个个饱满，真是好运。
开始品尝了，我手捧着玉米，凝视着它，虽然只是一个玉米，但它倾注了我一学期的几多汗水，我捧着它，就像捧着一个金宝宝。轻轻地咬上一口，玉米籽儿进入我的嘴里，甜到我的心里，我很开心，因为我再也不是家里的小公主，我终于学会了劳动，品尝到了劳动的果实……“你怎么才吃了这么点，我已吃了一半了。”同桌提醒我，我恍然大悟，也跟着大口大口地吃了起来，“呀，好嫩好香呀！”
我们全班同学都在津津有味地品尝着丰收的喜悦！

语文课程应植根于现实。应拓宽语文学习和运用的领域，注重跨学科的学习，使学生在不同内容和方法的相互交叉、渗透和整合中开阔视野，提高学习效率，初步获得现代社会所需要的语文实践能力。”
本学期，我班的科学课开展了“种玉米”的实践活动，因此，我抓住这一契机，利用语文活动课、作文课、科学课、综合实践活动和我校开设的科技教育校本课程，指导学生实践、观察，丰富他们的作文素材，培养他们留心周围事物、乐于书面表达的能力，因而写出了“种玉米”这一系列的观察日记。
参考资料：科技之家
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回答者： llfxw - 经理 四级 10-5 07:51
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1.彩色投影小磁针

磁针就是指南针。指南针是我国四大发明之一。在当前的物理教学中，小小磁针可以用来判断磁场的方向。可是市场上出售的或上级部门调查拨的磁针用起来很不方便。老师在做磁场方向演示实验时，同学们在下面看不清楚，教师只好端着仪器走下来给同学们一个一个地看，很费时间。怎么办呢？经过同学们千方百计地想办法，终于制成了简易彩色投影小磁针，它既可以当指南针用，又可以在投影器上投影，使全班同学都能看见磁场的方向，为教学实验提供了极大的方便。、
简易的投影小磁针结构简单材料也很普通。它由子母扣钢针、大头针、有机玻璃条和透明投影胶片材料制成。制作方法是：将两根钢针分别穿两根钢针上，两根钢针要注意平衡。再将透明胶片剪成尖形长片，用502胶粘住在钢针上，一端一片，要注意对称，然后分别涂上红绿两种颜色。这样磁针上部就完成了。将有机玻璃条锯成块形，再磨成圆形为磁针的底座，烫在圆形有机玻璃中间。注意大头针要和底座垂直。小子母扣内凹处作为旋转的轴承支孔。把轴承支套在针尖上，这样磁针就会在针尖上旋转。最后一片是将小磁针磁化，方法是将条形磁铁S极从磁针中间部位向绿方抹过，这一方就是N极。这样，小磁针就磁化好了。

把自制的小磁针，放在投影器上，可以一目了然地从幕布上看到磁场各点的方向。

2.为什么衣服能使人暖和?

首先应该问问自己：真是衣服使人暖和吗？
要知道实际上不是皮袄使人暖和，恰恰相反，是人使皮袄暖和。难道不是这样吗？你知道皮袄不是炉子。“什么？”你会问。“那难道人是炉子吗？”一点不错，人是炉子！我们已经知道我们吃下去的食物——这就是劈柴，它在我们的身体里燃烧。这时候什么火花也没有看见，我们说它在燃烧，只是因为我们身体里感觉到热。

这个热需要保护。为了不让屋子里的热散到街上去，我们筑了厚厚的墙壁，冬天还安上双重的窗，还在门上包上毡。我们穿衣服也正是同样的原因。不让我们身体的热量散失到室内的空气里或者到街上去，我们使衣服暖和，它把我们的热量保持在我们身体周圄。我们的衣服当然也要向外散热，可是比我们身体散热慢得多。

3.[科技小论文]节省能源的路灯

中华民族是一个有着勤俭质朴的优良传统的民族，中国人民自古以来就保持着这一种良好的作风。无论是在生产劳动还是在日常生活中，也都体现出这个特点，总要力图以最节省的方式，尽可能办好每件事情。正是由于这一良好思想观念，我们才懂得去节省能源。能源问题对我国这样的人口大国有着非同寻常的意义，随着经济的发展，资源的大规模开发，能源紧缺问题就显得更加突出，在很大程度上影响我国的现代化建设。我们国家到目前为止仍旧提倡节俭的作风，在奥林匹克场馆的重大建设中，国家就是从实际需要考虑，提出了“节俭办奥运”的口号；在今年的55周年国庆相继提出“节俭办国庆”的口号。我们国家就是从顾全大局的角度出发，从节省能源方面做到勤俭的作风的。节省能源可以减少开支，促进经济的增长，还可以保护自然环境，也是走“可持续发展”道路的先决条件，更是为了我们的子孙后代。
在城市的夜晚，公路的两旁都亮着密集而又整齐的路灯，看上去宛如一条巨龙腾空，虽然这是一道亮丽的风景，但是许多时候这些路灯的光亮都白白浪费了，因为很大一部分时间里，路上是空荡荡的，这种情况尤其出现在经济、交通不是很发达的地区。电力资源的极大浪费，给这些地区的经济带来负面影响，无一利而有百害。那么，有没有既方便晚上行人和车辆通行，又节省能源的自动控制装置呢？
节省能源，实际上就是尽可能减少能源损失。偏僻的公路上，交通流量极少，长时间的打开路灯，不管是有车辆，还是没有车辆，有行人，还是没有行人，都造成能源的极大的浪费。即使有车辆经过，也不应该全线路灯都开亮，只应在车辆行驶的有效范围内打开路灯，否则那会造成多么巨大的损失！行人在路上走路也是如此，只应在行人走路的相应范围内打开路灯，满足照明的需要即可。这个问题可以类比现在常见的声控开关，只要有人在楼梯间走路，发出声音，声音产生的震动传递到声控开关，灯就会发亮，并且只在行人走路的范围内的灯亮了，而不是长期不灭的。从这里得到启示，当车辆和行人在公路上通过时，不就对路面产生了压强吗？要是有一种感应器能够在受到压强的作用下能自动控制开关，控制相应范围内的灯的亮和灭，这就达到了节省能源的目的。
那么这个感应器不能是通过声音产生的空气震动控制的，而是要通过车辆和行人对路面的冲击和压强而产生的路面震动控制，这两种震动是不同的，否则就会阴差阳错，说不定是动物的叫声，路以外的喧哗声就把灯亮了，同样达不到节省能源的目的。倘若车辆、行人发出的声音很小，灯不会亮呢？那么就形同虚设，毫不起作用。汽车的行驶、行人的走路，自然而然会对地面产生冲击和压强，使路面震动，这就可以利用路面的震动来控制路灯亮还是熄灭。假如有这样的一个装置：它可以安装在路灯的灯箱内，各个装置用一根金属棒与路面相连，当路面受到冲击和压强产生震动时，对应的路灯就会发光，哪里有车辆或行人，哪里的灯就会亮起来，震动停止，灯在一定时间限定内自动熄灭。这个装置就是利用冲击和压强产生的震动来控制路灯的，能够起到很好的节省能源的作用。当然，为了减少装置的安装数量，可以由这样的一个装置控制多盏路灯，装置与装置之间并联连接在一个电路中，也就是每隔一段路程安装一个，然后通过导线把装置与相应的路灯连接起来。我们不妨先把它命名为“震动感应器”。我们再来看一看“震动感应器”的工作原理：首先，金属棒就是用来感应路面上有无震动的。当汽车或行人在某一路段上经过，对路面施加压力的冲击，产生震动时，金属棒将震动传到“震动感应器”，“震动感应器”受到震动的刺激，命令由它控制的几盏路灯闭合开关发亮；车辆和行人继续经过下一路段，下个路段的“震动感应器”同样受到震动刺激也使对应的路灯发亮，依此类推。同时，车辆和行人经过以后的路段的“震动感应器” 由于没有继续受到金属棒传给它的震动信息而断开开关，不再使相应路灯继续发光。但要求这种“震动感应器”灵敏度要高，而且还能够判别震动的来源。比如遇到特殊情况，遇到雷电天气或者工厂产生的高分贝声响使空气剧烈震动，也会经过金属棒传到“震动感应器”，“震动感应器”误以为震动是由路面传来的，使路灯发光。因此，我们要调用科学技术钻研出一龀绦蚧蛞桓鲂〔考�诶锩妫�埂罢鸲�杏ζ鳌被崤卸险鸲�锹访娲�吹模�故鞘艿娇掌�鸲�挠跋齑�吹摹?
好了，只要在有路灯的公路上安装这种“震动感应器”，就不需要大量的人力来控制供电了，一切工作就交给机器来自动控制吧。我们可以想象，随着汽车或行人在路面经过，路灯次第发光与熄灭的情景，熠熠夺目，应接不暇，不也是夜间一道独特而又亮丽的风景吗？在方便交通的同时，最大的好处就是大大的节省了能源。
这种“震动感应器”是为节省能源而设计，希望这种装置能够应用到实际中去，发挥巨大的作用。在我们发展经济的同时，千万不要忽视了保护能源的重要性，节省能源，走可持续发展之路，已经成为人类的共识。 金大话英语培训网

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