TOEFL writing part: Is it better to have knowledge of many subjects than specialize in one subject Study is one of the most essential part of people's lives. However, there remains a problem as to whether having broad knowledge of many academic subjects is better than specialize in one specific subject. From my perspective, it is obvious that having knowledge of various subjects is better. First, having other subjects' knowledge can is beneficial to the study of your major. Taking myself as an example, I am a student of chemistry, but when I entered university, I found out that I need to finish the learning of calculus and physics before taking some advanced courses for the knowledge acquired in these elementary lessons are rather helpful for my further study. What is more, the prosperity of interdisciplinary also requires us to know about different subjects, which makes it easier for us to communicate with researchers of other subjects. If we only focus on a specific subject, our study of our major will be largely limited and we may have problem when faced with projects about interdisciplinary. Second, having the knowledge of other subjects can help us develop the creative thinking ability. Getting knowledge of one subject does not only mean gathering information, it also means learning the specific thinking mode. My professor used to ask me to think about how a subject deals with problems and I learned a lot from it. For example, mathematics taught me to think in a logical way and physics instructed me that hypothesis sometimes is a powerful weapon when solving problems. When it come to chemistry, I learned to build models to simplify the problems. In contrast, it may be hard for us to think out of the box if we only learn about a single subject. Third, having a broad knowledge of many subjects can help students to identify which subjects they are really interested in. Not everyone have a clear dream in their mind when they are students, so a broad knowledge of many subject is quite helpful for them to make up their mind. My roommate learned physics first, but he also took part in many other classes. Then, he found out that programming was his 'true love' so he changed his major into computer science. If students only learn about a specific subject, they may loss the chance to meet the subject they really like. Simply put, it is safe to draw the conclusion that having broader knowledge is better. Having broad knowledge, we can definitely harvest more than what we expect.

Is it more important for students to understand ideas and concepts than to learn facts？ Understanding concepts and ideas is an essential part in the learning process, but there is a question as to whether it is more important for students to understand ideas and concepts than to learn facts. Form my perspective, facts and concepts are equally important and we should devote effort to both of them. First, learning facts is beneficial for us to get a better understanding of concepts and ideas. As a student of chemistry, I used to get confused with the numerous concepts. Many of them have a similar look and it is quite easy to mix them up. Confused by these concepts, it was difficult for me to catch up with the teacher in class and get high scores in various tests. Aware of my problem, my professor shared his learning experience with me. When he was a student, he uses the concepts and the ideas to explain the experimental facts that he met. With the accumulation of relative facts, the relationship between different concepts became more clear, and he found that he can memorize those concepts more easily. I took his advice and in the next term my grade increased dramatically. Concepts and ideas are founded on the base of large amount of facts, so the learning of facts is beneficial for the understanding of concepts and ideas. Second, facts and concepts reveals different aspects of one subject's beauty. Facts are appealing and beautiful while concepts are more logical and rational; both of them can get us interested in the subject. Indeed, the various concepts shows the great wisdom of mankind. They are shining and glorious and provoke our curiosity towards the unknown. However, it doesn't mean that the fact is not beautiful. In a chemistry experiment, it is the fancy color-changing process that attracts our sight. The beautiful facts stimulate our interests toward the subject and give us the incentive to carry on further study which enables us to learn more about the concepts and ideas. As we can see, both concepts and facts play an important role in cognizing the subject's beauty, so it is unfair to regard learning concepts and ideas as something prior to learning facts. Simply put, it is safe for us to draw the conclusion that learning facts and understanding concepts and ideas are equally important. Immersing ourselves in both of them, we will get a better view of what we learned.

Will there be fewer cars in the future？ Traditionally, people regard car as an important part of their possession and many people tend to buy cars after they get the driving license. However, the problem is that whether the number of cars will decrease in the following twenty years? As far as I am concerned, there will be fewer cars in the next two decades with reasons as follow. First, the advanced transport system in the future can enable people to travel freely without a car. My hometown witnesses a dramatically development in the public transportation in the last ten years. In the past, there were only few buses in operation, but now we have 13 lines of underground and much more buses. The booming of bike-sharing also bring citizens great convenience when they are out. If we want to travel in a long distance in a hurry, we have no choice but to drive our car in the past, while we can choose airplane or high speed rail. In the future, the more and more developed transport system will make it less necessary for people to buy cars. Second, the increasingly environmental pressure will force people to devise new environmental-friendly vehicles to replace cars. The tremendous number of car brings too much pollution to our earth. Although many manufacturer are providing electronic cars, electricity is still produced by the burning of fossil fuel in most area of the world, which release carbon dioxide, along with many toxic gases. In addition, noise pollution caused by the heavy traffic becomes more and more severe. Beside disturbing our lives, it can cause many problems to our physical and mental health. As people attach more and more importance to the protection of our environment, they will chose to purchase for other environmental-friendly vehicles instead of cars. Last but not least, the great amount of cars is a hard nut to crack for the government. The heavy traffic in rush hours everyday adds heavy burdens to the shoulder of the police. The construction of new roads and other relative facilities brings the government great financial pressure and dealing with the pollution caused by the car also cost a lot. Limiting the number of cars and introducing new vehicles can save a great deal of money for the government. Simply put, it is safely for we to draw the conclusion that there will be fewer cars in the future because of the development of transport system, the environmental pressure and the financial pressure of the government.

Why do people attend university Nowadays, many people regard university education as an essential part of life, but the reasons for people to attend university vary greatly. As far as I am concerned, having university education can enlarge people’s horizon, promote people’s thinking mode and give people better chance to get employed. First of all, attending university can definitely add to our knowledge. Various clubs are also convenient places where we can develop our new interest. Sharing experience with students from all over the world can give us a glimpse on other cultures. All of these can widen our horizon tremendously. Taking myself as an example, I only know about my hometown before I went to university. However, after I attended university, I have learned a lot about the cultural differences between different regions in our country by now. University is indeed a perfect place for people to enrich their experiences and broaden their horizon. Second, having a university education can promote the thinking mode of people. In universities, classes require students have the ability to think critically. With the continuous training from various classes, we can equip ourselves with critical thinking which may benefit us a lot in our future lives. What is more, universities are place where students are encouraged to share their opinions. In the process of interchanging ideas, we can gradually know how to view a problem from different angles. Last but not least, going to university can enhance the possibilities for people to get hired and get promotion. More and more companies prefer people with bachelor degrees when they are hiring new staffs. Having a university education background gives us and edge over other competitors who did not attend to university. My brother is an experienced Internet engineer, but he dropped out from university because he did not interested in the courses that the university offers. Although he is quite skilled, he found it difficult to get a job in big cities. In conclusion, university is an ideal place for us to enlarge our horizon and promote us thinking mode. The bachelor degree also plays an important role when we hunt for occupations. Attending universities, we will definitely embrace a brighter future.