2017英语三级范文 第一篇

一.指导思想

根据高中学生思想较成熟，对运动技术的掌握能力增强，对自身运动项目具有一定的选择性这一特点及体现“健康第一”、发挥“双主”优势这一指导思想，较为灵活地安排该节课，旨在创造轻松活泼的课堂气氛，愉悦身心，曾强体质，提高技术。

二.教材分析

该节课是三级跳远单元的第一节课。教学目标 是要求学生初步掌握三级跳远的技术动作，体会出三级跳远的三步节奏。三级跳远的技术对于高中生来说已不再是高难度的运动技术，关键是学生愿不愿学和教师如何去引导其学的问题。解决了上述问题，该目标就不难实现。另外三级跳远对下肢的.爆发力及人体的协调性和心理素质的要求较高，所以采取各种方式的跳跃练习来增强体质、发展力量、提高跳跃能力、增强协调性、锻炼意志品质、愉悦身心是这节课的又一重要目标。

三.教学步骤

1.通过“五官移位”这一趣味性的游戏，将学生注意力集中到课堂，然后听着音乐根据个体差异选择做四肢、腰腹及牵拉韧带的徒手操，这样会充分发挥学生的主体作用，克服以往徒手操的整齐划一的教学模式，避免了单调、呆板的缺陷，以调动学生的运动兴趣。通过竞赛的形式有针对性地进行跨步跳和单足跳练习，在为主要内容作好准备的同时又调动了学生参与运动的兴趣和积极性，同时还培养了学生争强好胜，奋勇拚搏的体育精神。

2.因该节课为三级跳远的第一节课，所以就将场地设在宽阔的跑道上进行。由示范讲解、出示教学挂图开始，使学生对三级跳远有个完事的初步认识。原地跳跃练习和4-6步行进间跳跃练习，促使学生掌握三级跳远的基本技术，再通过跳过实心球练习来掌握“三步”的节奏，最后进行完整的动作练习。另外，期间要多注意学生的反馈信息，适时加以引导。

3.设置各种跳跃练习的场地，要求学生自由分组和选择运动项目，发挥个人跳跃特长，提高特长项目的技术水平和终身体育能力，提高下肢爆发力，增强协调性。通过自主组织些跳跃游戏(斗鸡、跳绳等)来增强体质的锻炼和培养学生群体意识及团结协作的集体主义精神，达到愉悦身心，增进健康的目的。

2017英语三级范文 第二篇

跳绳是我们课间最有趣的游戏之一，尤其是跳绳。铃声一响，我就大吼一声跑到小操场，可见我们是多么喜欢跳大绳。

跳绳时，选择两个人扔绳子，其他人排队跳绳。我的好朋友潘雷曼跳绳的时候，裙子飞起，头发竖起，脚勾起来。我们一起喊:5，6，7，跳。男生中，施子瑞等。是最好的舞者。最后跳出来的人是侯等人。每次跳都是闭着眼睛。当我冲出去时，我微微睁开眼睛。陈丹颖跳的时候总是转个身，很搞笑。

我们吓得上气不接下气，仿佛呼吸到了冷空气，真的很难受。但是我们玩得很开心。

如果谁跳得不好，就会有轻微的笑声，然后大家再跳。有时候有三个女生连续跳。就是前面的女生刚跳完，剩下的接手跳了。我跳过了三级跳远。它是如此令人激动和兴奋。

绳子掉在地上就断了，这给了我们一个很好的提示。闭着眼睛跳，一听到声音就嗖的一声跳。我们跳绳的时候会有笑声，大部分人都是从绳子下面直接冲过去，很危险。

跳绳可以帮我做运动，帮我锻炼身体，让我变得更强壮更勇敢。

2017英语三级范文 第三篇

Online Learning

Perhaps there is something you don't know how to doTTn the past, you might turn to a friend or a relative, attend a night class or go to the local library to find the answer. But at present a lot of websites are springing np to offer free practical advice on these subjects aod actually anything else you can imagine.

Why is online learning so popular among people? The answer is obvious: online learning is nuich more convenient. In the past, you perhaps had to spend pienp of lime learning m a night class or going to the library to look for relevant materials. However, now when you run into a problem, yotijust need to click the mouse, then a lot of related websites will appear in front of you.

However, not all the materials on the Internet are correct; sometimes they are false. Thus, if you want to lcam something from the Internet, you should make sure what you will leam is completely correct.

2017英语三级范文 第四篇

一、教材分析

跳跃是人类活动的基本方式之一，是人类为适应生活环境的一种生存能力。随着社会的进步，跳跃已经成为一种体育运动。然而三级跳远是在各中学田径运动会上必有的跳跃比赛项目之一，是高中年级体育课的必修内容之一。

跳跃运动对青少年的身心发展有什么作用呢？首先，跳跃运动能够促进青少年身体的正常发育。它能调整人体的内分泌功能，增加脑垂体前叶生长素的分泌。其次是能够提高弹跳力。第三，跳跃运动能发展身体的灵敏和协调性。第四，跳跃运动能培养青少年坚强的意志，勇敢的精神。第五，跳跃运动是一种能力的培养，它将有助于适应生活和劳动环境。最后就是它能增强体质，锻炼身体。

三级跳远动作相对来说比较复杂，技术难度较大，而且在学习中会感到枯燥无味。先通过完整练习，再分解技术动作，创造多种练习方法，既培养了学生的创造力，又培养了学生主动学习的意识。同时通过游戏比赛、分组练习等方式相互学习、交流，使学生懂得欣赏别人的作品，同时通过相互学习达到知识共享，共同提高的目的，也发展促进学生乐学、想学的心理。

二、学情分析与指导思想

本堂课的对象是高二年级，平均年龄在18岁左右，学生正处于身体生长发育的关键时期，可培养、提高学生的协调性、爆发力等身体素质。学生已经在上学期已学过蹲踞式跳远，已基本具备基础的跑结合跳的能力。本堂课也是“三级

跳远”单元教学的第一次课程，本堂课选用的教学内容85%以上的学生可以掌握，并加以应用。

本课以健康第一为指导思想，以发展学生的主动性、自主性、创造性为设计目标，强调教学中学生的个性发展和能力的培养，使每个学生在认识上、情感上和态度上积极发展。通过学生的主动创造和学习，构建民主、和谐的师生关系，创设宽松愉悦的课堂氛围，使学生主动获取知识，成为学习的主体。使学生从运动中找到参与运动和获得成功的乐趣。

三、教学目标

根据教材特点和学生的学习能力及年龄特点制定以下四个教学目标

1、运动参与目标：学生乐于参与跳跃动作的学习，并在活动中增强信心。

2、认知与技能目标：了解三级跳远的动作特点和锻炼身体、娱乐的意义，通过初步学会立定三级跳远，建立学生对助跑三级跳远的一、二、三跳的动作表象和动作结构。并通过练习单脚跳，提高学生跳跃的能力和各身体素质。

3、身体健康目标：提高机体的力量和协调柔韧素质。

4、心理健康目标：学生积极参与，充分展示自我，并在运动中体验获得成功的喜悦。通过小组合作学习，培养学生团结协作，力争上游的社会合作能力。

四、教学程序

（一）开始部分

热身→激发兴趣：热身活动是以学生在行进间来完成的。学生积极、活跃地参与，使学生消除了紧张情绪，以轻松愉快的心理状态进入课堂，并使学生充分的活动开来。

（二）学习提高部分

结合示范讲解三级跳远技术，使学生建立正确的技术概念，了解三级跳远技术的要求、方法和要领。再以完整练习法为主，先通过立定三级跳远练习，使学生体会三级跳远的动作结构，然后以比赛游戏来学习单脚跳的一些基本技术，培养学生的学习乐趣和团结协作共同提高的思想。让学生在学习中创造，在学习中学习，在学习中思考。通过各组间轮回练习，使学生相互欣赏、相互学习提高。教师在教学过程中以引导、提示、参与等教学方法，激发着学生的运动和学习兴趣。

（三）整理恢复部分

通过“反口令”游戏，即“高人”“矮人”游戏和自我拍击大小腿方式进行放松，使学生由高度的兴奋状态过渡到相对稳定的状态，身心都得到调整放松。

教师小结。

五、教学效果预计

1、预计85%以上的学生能初步掌握课所学的动作技术。

2、预计本堂课学生的运动强度为中等，最高心率130次每分钟左右，平均心率100次每分钟，练习密度为35%-----38%左右。

3、测量心主绵方法：对同一个学生，在开始热身后、学习提高后和整理恢复后进行把持脉搏，来测量心率。

六、教学中可能出现的问题及解决方法。

1、可能出现韧带拉伤、拐脚等情况

解决与预防方法：（1）在准备活动时要求尽量活动开来。（2）在练习的时候要求学生要适当而行，不盲目完成。

2、可能出现协调性特别差的学生，在立定三级跳远时一、二、三跳衔接不起来。

解决与预防方法：应该以集体为主，适当的单个教学，有时间可以在课后时间进行单独指导。

七、场地器材：两个篮球场大的空地一块，三级跳远沙坑一个，接力棒二根。

2017英语三级范文 第五篇

dancing is a popular pastime to many people all over the world . way back to past centuries , and even today , t ribal people engage in dancing as a form of wors hip or as a par t of a cer emony in a celebra tion . on such occasions , dancing can be very solemn . in modern times , dancing appeals to different people for diffe rent reasons .

young people often include dancing in par ties or at other social gathering s . i t seems to be an incentive for them to gather . they look forward to dancing into the night during pa rties without feeling fa tigue .

to the elder ly , the step s in dancing a re r educed with a slower tempo in the music . t hey gather in community cente rs to lear n folk dance and , at the same time, to know one another in s uch informal inter action s .

personally , i doubt the effectivenes s of dancing as a major role in keeping one’s body healthy and in good shape . activities such as jogging , swimming and playing games ar e mor e effective for attaining good health . they can burn off calories in our bodies and develop our muscles . t o me , the re a re more meaningful and effective ways to keep fit .

2017英语三级范文 第六篇

Recently the phenomenon that young people make irresponsible comments on somebody or something on the internet before knowing the real truth has aroused wide concern. From my point of view, it’s immoral for some media to mislead young people by reporting hot news without any evidence in order to gain more exposure.

The following measures can be taken to avoid this phenomenon. To begin with, authorities should strengthen the supervision of the news media so as to reduce the spread of misinformation. At the same time, the news media which publish false news to draw people’s attention must be punished. Besides, the news media should always adopt a responsible attitude towards news. Most importantly, young people should be taught to develop the ability of identifying false information.

To sum up, the random dissemination of false information has a very bad effect on society. Therefore, authorities, the news media and young people should strive to address the problem. Only in this way will the society be more harmonious.

2017英语三级范文 第七篇

尊敬的领导，亲爱的同学们：

大家好！

时光飞逝，再过100天，我们在座的全体同学，就要结束紧张而美好的初中生活，接受中考的洗礼。今天，我们初三级领导、老师、同学聚集在这里，为着一个共同的目标——xx年中考而努力。

中考是我们人生旅途的第一个加油站，也是我们人生必经的第一个大的关口。我们经历了小学六年，初中三年的苦读，这九年寒窗到底收获了多少，100天之后的中考我们将会一见分晓。我们都希望自己在中考的时候能有个好的成绩，不想九年的努力就这一年白费了，所以我们改正那么做呢？我们应该从现在开始，拿出你们全部的精力，挖掘你们的潜能，为100天后的中考而奋斗吧！到时不论结果如何，你们都可以对自己说：我努力了，我奋斗了，我没有任何的遗憾了！

其实，为了你们的中考，许多人都在努力着。为了让你们可以有更多的时间学习，学校为你们开设了多媒体室，阅览室。老师们为你们做好了充足的考前准备，有的老师甚至放假时间还回校帮你们补习，放学了也经常有老师留在办公室为你们解答问题。而你们的家长也在全力支持你们的中考。许多时候我打电话家访时，家长们说得最多的就是：孩子要什么我们都会满足他们，只要他们努力学习。当我告诉家长们孩子这个时候需要加强营养时，所有的家长都承诺绝对没问题。

可能有的同学也有觉察：星期天回校时父母会叫你们带牛奶、水果回来。回家喝到汤水的次数也多了。有些宿生家长甚至煲好汤水送到学校来给你们喝。那么学校、老师、家长这么辛苦努力为了什么？目标只有一个：希望你们考好今年的中考，对你们自己的人生负责。

实际上，很多同学很懂事：知道中考是自己的事情，是自己人生中的第一次大考。许多同学已经开始努力了：同学们到校的时间越来越早了；中午都有许多同学申请留校做作业、休息；晚修到关灯时间了，还有很多同学迟迟不肯离开；去办公室问问题的人越来越多了。这个社会充满着竞争。中考就是你们要经历的第一个残酷的竞争，如果你不努力，就会成为竞争对手的垫脚石。

可能有同学会问：我现在基础不好，时间又太短，我现在努力还有用吗？会不会太迟了？我经常同十五班的同学说：如果你认为时间太短了，努力也没有结果，然后放弃了，那么最后的结果只有三个字——“死定了”；如果你抓紧最后100天，努力拼搏，你就有希望。为什么不给自己一点希望呢？要知道，现在努力，不算太迟，只要努力拼搏，定能实现你的中考梦想。

在最后的100天里，希望我们每个同学都能放下包袱，轻装上阵。在前进的路上遇到困难和挫折时，不用怕，有我们老师做你们坚强的后盾。而且你们也要记住：在前进的路上你不是孤军奋战，你的同学就是你前进路上的战友，还有你们的父母，他们是你最强有力的支持者。

最后，让所有的初三级老师们、学生家长们与在坐的九百五十二个学生一起努力，携手拼进xx年中考，让我们xx年中考再创辉煌！也希望到时在坐的九百五十二个学生都可以对自己说一句：我努力了，我无悔！

2017英语三级范文 第八篇

More and more college students choose self-help trayelijig rather than arranged tours when they plan to travel. The reason inay be that by ananging the route, booking cheaper hotels and taking cheaper transportation means by themselves, they can save a lot of money.

Convenient and economical as self-help traveling sounds, it still has some potential problems Perhaps the most important one is the safety hazard. Being alone without a group or a tour guide, a traveler may be helpless in face of danger, . robbery, wild animal attacks, etc. In addition, they are more Eikely to be at risk of getting lost when traveling alone in a strange city or in the remote countryside.

In my view, self-help traveling can be exciting and challenging which is worth trying. However, before setting out alone on a tour, travelers should make good preparations. Besides, they should hear security in mind all the time and keep ia touch with their friends or relatives. By doing soa they can enjoy the pleasure of exploring a strange city safe and sound.

2017英语三级范文 第九篇

Directions:

You should write your responses to both Part A and Part B of this section on ANSWER SHEET 2. Part A

Suppose that you have been a regular of a hotel for many years. But during the last 2 days, the air-conditioner didn' t work and nobody came to clean your room. Write a letter of com- plaint to the hotel manager. Your letter should include:

1 ) a description of the situation

2) complaint about the situation

3) your request

You should write about 100 words. Do not sign your own name at the end of your letter, use xxxWang Linxxx instead. You don't need to write the address.

2017英语三级范文 第十篇

一、 运动会主题：友谊、责任、拼搏、进取。

二、 运动会口号：运动强健体魄，责任铸造辉煌。

三、 召开时间、地点：20xx年3月27日—28日，会期一天半；初中部东操场。

四、 参加范围：初一、初二全体学生，初三运动员，部分教职工。

五、 项目设置：学生项目包括男子组：100米、200米、400米、800米、1500米、5000米、110米栏、跳高、跳远、三级跳远、铅球、铁饼、4×100米接力共13项；

女子组：100米、200米、400米、800米、1500米、3000米、100米栏、跳高、跳远、三级跳远、铅球、铁饼、4×100米接力共13项。

教工项目：篮球投准、托球跑、趣味保龄球、自行车慢骑、4×100米接力。

六、 成立运动会各种组织机构

1、主席团：xx、xx。

2、筹备委员会：xx。

3、大会组织及宣传：学生处负责。

4、安全保卫：办公室负责。

5、后勤服务及卫生医疗：总务处负责。

6、仲裁委员会：xx。

七、 运动会入场式要求：

1、每班代表队20人，引导员1人，成四列纵队，沿2、3、4、5跑道行进。

2、服装统一，队列整齐，步伐有力，口号响亮，精神面貌好。

3、体现班级特色及大会主题、口号。

4、解说词由各班完成，100字以内。

5、入场式顺序：国旗队—会旗队—彩旗队—初一级部1—10班代表队—初二级部1—10班代表队

八、 运动会开幕式程序：

1、大会主席团成员就位。

2、运动员入场。

3、奏国歌、升国旗。

4、校长致运动会开幕词。

5、裁判员代表发言。

6、运动员代表发言。

7、宣布运动会学生纪律要求。

8、运动员退场，比赛开始。

九、运动会闭幕式程序：

1、大会主席团成员就位。

2、宣布运动会成绩。

3、运动会颁奖仪式。

4、校长致闭幕词。

5、宣布运动会圆满结束。

2017英语三级范文 第十一篇

I Like Riding Bicycle

When I was very small, I felt so envious to see the children riding bicycle, and I thought they were so cool. So I tried so hard to learn how to ride it. I still remembered the day when I could ride bicycle and I was so proud.

Today, bicycle is still my favorite transportation. On the one hand, I can exercise my body. I ride the bicycle to go to school. It is true that I do have the strong body, because I barely feel sick. On the other hand, riding the bicycle can protect our environment. Bicycle works with our legs instead of the gasoline. The gasoline burns and it lets out the air which can pollute our environment. So taking the bike is a good way to protect our environment.

I think I will continue to keep bike as my favorite transportation.

我喜欢骑自行车

在我很小的时候，看到其他小孩子骑自行车，我会很羡慕，我觉得他们很酷。因此我很努力去学习骑自行车。我仍然记得在我学会骑自行车那天，我为自己感到自豪。

今天，自行车仍然是我最爱的交通方式。一方面，我能锻炼身体。我骑着自行车上学，事实上，我也确实有着强壮的体魄，因为我几乎不生病。另一方面，骑自行车能保护我们的环境。自行车需要我们的腿来工作，而不是汽油。汽油燃烧会释放出污染我们环境的气体。因此骑车是保护我们环境的好方法。

我觉得我会继续保持着自行车是我最爱的交通方式。

2017英语三级范文 第十二篇

Nowadays, there is a growing tendency that college graduates in mounting numbers choose to work as village officials after graduation. People’s attitudes towards this phenomenon differ sharply. Some hold the positive view while others are against it. From my perspective, I believe that it is a wise choice.

The reason why I support them can be listed as follows: on the one hand, college graduates can contribute a lot to the development of the countryside. Firstly, having received formal education and professional training in universities, college graduates can help peasants master advanced technology. Besides, by spreading and introducing new concepts, they can also accelerate the development of rural culture. Consequently, the gap between the city and the countryside can be gradually narrowed. On the other hand, college graduates themselves can also benefit a lot from being village officials. In the first place, working in rural areas with adverse environmental condition and lower living standard, they are more likely to foster a spirit of hard-working and independence. Moreover, compared with their peers competing for limited positions, those who work as village officials enjoy more opportunities and are more likely to bring their abilities and potential into full play.

Therefore, it is a win-win choice for college graduates to work as village officials and more graduates should be encouraged to work in the countryside. (220 words)

2017英语三级范文 第十三篇

Direetions:

Read the text an essay in about 120 words, in which you should summarize the key

points of the text and make comments on them. Try to use you own words.

The Princess of Cambridge has finally been revealed to the world as Charlotte Elizabeth Dian- a-in a touching nod to her grandfather, her grandmother and her great-grandmother.

The name has long tradition which can be traced hack to the royal background. Charlotte, de- rived from French name, pays tribute to her grandfather, prince of Wales. And Charlotte is also Kate' s sister, Pippa Middleton' s middle name.

Kensington Palace revealed the royal baby' s full name yesterday after days of speculation and close friends of Princess Diana immediately said the choice means the spirit of Prince William' s be- loved mother ' lives on'.

William was, however, clear that his baby girl should not have Diana as a first name. xxxIt would have been a millstone around her neck,xxx said one of the princess' s long-time friends.

Within minutes of the name being announced this afternoon, Diana' s closest friend Rosa Monckton said: xxxDiana' s spirit lives on in her sons, and now her name lives on in her granddaugh- ter ' Charlotte Elizabeth Diana'. xxxDiana was the godmother of Mrs. Monckton' s daughter Dominica

The British citizens show their satisfaction with this name via Intemet. They said it is the per- fect name for their lovely princess.

范文

All the British citizens and even the world were looking forward and anticipating the new princess of princess'name was finally revealed as Charlotte Elizabeth Diana，which is named after her grandfa- ther，her grandmother and her great-grandmother.

One possibility is that the name of Diana，which is also the name of the princess'grandmother，means the eternal love between the princess' grander princess William，the princess'father declared that they didn't use Diana as her first name because they don't want to give her too many pressure，by living under her grandmother'S fame.

For my part，it is unimportant what this little girl's name was as it is just a call for people to recognize most important thing is that the gid Can grow up in a harmonious this little girl be happy every day.

2017英语三级范文 第十四篇

Afternoon Time

Today was Saturday.

Early in the morning, I woke up and stayed at home the whole morning to watch TV. After finishing my lunch, I had nothing to do, so I decided to call my friends out. I headed to the coffee shop which was near a square. There were a lot of people in the square. Some women were dancing and singing, while some men were taking the chess. I walked into the coffee shop and chose a table which was near the window, so that I could see the outside scenery. When my friends came, we talked happily and shared the things that happened during these days. Then all my pressure was relieved, I forgot about the annoyance on my study. At that moment, I was enjoying the time talking with my friends.

I had the great time this afternoon.

午后时光

今天是星期六。

一大早，我就起床了，整个上午，我都呆在家里看电视。在吃完午饭后，我没有什么事情去做，因此我决定叫我的朋友们出去。我前往一家广场附近的咖啡店。广场里有很多人，一些女人在唱歌和跳舞，然而一些男人在下象棋。我走进了咖啡店，选择了一张近窗口的桌子，这样我就能看到外面的风景。当我的朋友们来了以后，我们聊得很愉快，分享了在这段时间发生的事情。然后我所有的压力都得到了释放，我忘记了学习上的烦恼。在那个时刻，我享受着和朋友们聊天的时光。

今天下午我度过了愉快的时光。

2017英语三级范文 第十五篇

The above saying from Einstein vividly echoes a piece of quotation: stay hungry; stay foolish, which is put forward by Steven Jobs, the late CEO of Apple Inc. Undoubtedly, both of the two great men attach importance to curiosity. To some extent, we may safely maintain that without curiosity, without success.

In the first place, curiosity is the premise of innovation, which can be seen as the key to success. Besides Einstein, a case in point is Steven Jobs, who always keeps curious, devoted to innovation. So, there is no exaggeration to say that the success of Apple Inc doesn’t suppress us at all. In the second place, the quality of being curious provides us with the drive to go forward. To put it another way, where there is curiosity, there is advancement. For example, if a scientist desires to make progress in his research community, he must hold a curious heart; otherwise, his research will eventually go into a corner.

In conclusion, it is not too much to say that curiosity plays an indispensable role both in personal and corporate success. So, it is wise for us to bear in mind great men’s sayings concerning curiosity and practice them as much as possible.

2017英语三级范文 第十六篇

As can be seen clearly from the graph, the difference in the numbers of people working in thethree major employment sectors in the . economy in the early 1980s was relatively small, with about 4 million workers in engineering, 5 million in agriculture and million in theservice industries.

However, the period 1980-1990 saw significant changes in the relative sizes of these threeemployment sectors. there was a rapid decline in employment in agriculture, with the numberof workers dropping by more than 80%. On the other, employment oppor tunities in the serviceindustries increased sharply, especially after 1986, whereas the engineering sectorexperienced a gradual but constant decline.

Trends in the above graph clearly indicate that the service industries will continue to employthe largest number of people at least for the next few years, while the engineering sector willneed somewhat fewer workers in the next decade. On the whole, the total number ofemployment offered in these three sectors was much smaller than ten years before and theredoesn't seem to be any likelihood for improvement in the near future. So, students who aregoing to graduate soon may need to prepare to seek employment elsewhere.

2017英语三级范文 第十七篇

Nowadays almost every person has a clear notion about the importance of knowledge, with which we can make great difference to our world. However, the contribution of practice should also be awarded.

Practice is considered significant because it can turn abstract ideas into tangible results. Only through practice can we truly develop our own understanding about the essence of the new knowledge, or else the treasure of knowledge would still be words printed on papers. Moreover, the vilification of new theories requires us to focus more on the practical side, which helps people to learn better compared with the mechanical way of reading and memorizing. In addition, practice makes people acquire information in an active way, thus more innovative thoughts are likely to be generated in the process and then applied to make our future life more exciting.

As far as I am concerned, practice is essential for people to understand, to review and to optimize the information we receive. It is practice that produces enjoyable life and makes knowledge truly valuable.