Today, tourism (旅游业) has become one of the fastest growing industries (产业) in most places. Why are more and more people fond of travelling? The main reason is for pleasure. For example, having worked hard throughout the weekdays, people will want to go to the mountains or beaches nearby for relaxing. When people return from their trip, they will usually feel fresh and energetic, and ready to work harder.

    Travelling is also one of the best means (方法) for learning. You may have read or heard about something, but you can never get a picture of it until you see it by yourself. Seeing is believing. What's more, if you are a careful observer (观察者), you can learn much during your travel, such as the geography and the history of the places you visit. Though you have studied well at school, there is always a lot for you to learn through travelling. You can find the knowledge in your life, and it is more valuable than what you got from books.