引导语：多多学习范文的写作，你的写作分数肯定会有提升的，下面小编就和大家分享一下，一些小编精选出来的大学英语四级作文的范文吧。
For thousands of years, people have accepted challenges in different fields. There are not only physical challenges, but also social andintellectual(聪明的) challenges. Some people risk(冒…险) their lives in playing sports to see how well they can do. Others try to make and invent(发明) something to make life easier. They all enjoy challenges.
Why do people enjoy these challenges? There are probably many reasons. One is curiosity. The other is the personal feeling of success, of achievement, and nowadays, for some people, it is a business.
Today, we still have many challengers before us. Medical science faces the challenges of conquering many diseases which still attack human beings. Engineers and planners must build new cities, design and produce new kinds of transportation. Scientists must develop new forms of energy. In short, we live in an age of challenges.
二、My View on Job-Hopping
1. 有些人喜欢始终从事一种工作，因为……。
2. 有些人喜欢经常更换工作，因为……。
3. 我的看法。
Many people are inclined to do one job in their lives. In their opinions, people who change their jobs frequently are superficial and tactless. They believe that the only way to success is to stick to one job, for constant practice in a professional field helps make an txpert.
But there are still many people who don’t agree. They argue that change means progress. If you are not satisfied with your present job, of course you have the right to replace it with a more challenging and better paid one. Every change is a step to further success. This idea may be. the reason why they change their jobs so often.
For my part, I think it reasonable to change your job if you have a better opportuniry. But once you have found a position where you can fully display your ability, it is advisable to settle down to it and put all your efforts into it. Only in this way, can you get the true joy of achieving your goal.
我对更换职业的看法
许多人喜好终身从事一种工作。他们看来，经常更换职业的人浅薄，不老练。他们认为成功之道是终守一职，因为在自己的业务领域中反复实践有助于成才。
但是，也有许多人不同意以上观点，他们认为变更就是进步。如果你不满意目前的工作，当然你有权力换一个更具挑战性的，待遇更好的工作。每一次更换就会向着更加成功迈进一步。这种观点也许是他们不断更换职业的原因。
就我而言，我认为若有更好的机会，更换一下职业是合情合理的。但是，一日找到一份你能展示你的才干的职业，就该专心致志把它做好。只有如此，你才能真正享受到取得成就的欢乐。
三、生活在21世纪的优缺点
The Advantages and Disadvantages of Living in the 21st century
Living in the 21st century offers certain advantages,such as a higher standard of living, but it also has some disadvantages, such as a polluted environment.
To begin with, most people now have more money for less hard work. They earn higher salaries than before and enjoy better social security, such as social welfare for laid-off workers and disability insurance.
Secondly, because of the advance in medical technology which leads to better medical care and treatment, people’s life expectancy is longer. Moreover, most people now can afford to buy foods of high nutrition and enjoy their leisure time.
Thirdly, modern conveniences such as radio, TV, internet, various vehicles and labour-saving machines in the home, all greatly facilitate human communication, transportation and housework as well.
Nevertheless, living in the 21st century also has its disadvantages. The most serious one is the increasingly polluted environment; air is filled with smog and water is contaminated by iehemicals from her main disadvantage is the personalization of human relattonships which mostly result from people’s ever-increasing contact with machines and numbers. Still one more disadvantage is the weakening of spiritual values. An undeniable fact is that a large number of people are solely interested in materialistic culture,while neglecting spiritual civilization. Limited by space, we have to skip the examples.
In conclusion, although the 21st century has indeed given us a lot of advantages, it may not have made us wiser, because it has also made our earth dirtier, our people less humane, and our spirituali iife poorer, We shpuld continue to enjoy the benefits of technological advancement,however, we must
make a concerted effort to preserve our natural environment for future generations. Moreover, we should take the time now to make our lives more meaningful in anihcreasingly impersonal, computerized world.
四、 关于个人责任
书香门第
