It is not necessary for people to travel to other places to learn about the culture. We can learn as much as from books, films and the Internet. To what extent do you agree or disagree?
主体段 1：(有必要/无必要通过旅行来了解文化)理由 1+论证
主体段 2：(有必要/无必要通过旅行来了解文化)理由 2+论证
背景句：Learning cultures has been a significant part in people’s life. Some prefer travelling to the actual destination to learn about a culture, while others think they can learn as much by reading books, watching movies and using the Internet.
个人立场：In my opinion, compared to using the media, travelling is an irreplaceable and more effective way for people to learn about cultures.
主题句：Firstly, trips can never be fully replaced by the media, since whatever recorded on books, films and the Internet is merely demonstrated in an audio-visual way.
递进解释： One can’t actually touch or feel the cultural elements written on the pages or shown on the screen. While by travelling, people are allowed to enjoy the landscapes, savour the famous cuisine, communicate in the local language or dialect, appreciate the peculiar architectures, and watch performing arts with ethnic features for themselves. None of those could be realized by simply browsing the websites or books.
主题句：What’s more, one’s perception of a culture obtained from books and media could be overthrown by a field trip.
递进解释 1：And what one learns from the media could be critically divergent from what’s truly taking place in real life. A huge number of the millennial generation in the western world have actually stopped being Christians, and the British could be much more interested in food made from things other than potatoes. Therefore, travelling to the cultural destination enables one to observe and understand the culture in a more authentic and reliable way.
递进解释 2：People who prefer learning about cultures from books, films and websites might argue that traveling could be time and energy consuming, let alone the financial challenges one may confront. However, those problems could be overcome when one is truly enthusiastic with a culture, because the person would spare no effort to take a field trip to seek and understand what he is curious about.
In conclusion, travelling should be the prioritised approach to know about a culture, for it provides people with realistic experience and convincing details, which can not be easily substituted by books or media.
a significant part in 很重要的一部分
spare no effort to 尽力做某事
provide sb with sth 向某人提供某物