Want to travel as cheaply as possible while enjoying as many beautiful places as you like?
Backpacking is the way. As the most popular traveling choice among young western people, backpacking allows you to travel at your own free will. Carrying a tent, a sleeping bag and clothes, backpackers(背包客) also need to pack a spirit that will help them deal with many challenges.
It is exciting to put our ability to test and challenge ourselves with the difficulties we might meet with. So, backpacking is something that almost all young people want to try.
The rich might stay in expensive hotels where everything is provided. But backpackers carry everything in a large bag and depend on themselves to travel through unknown places.
To travel with as little money as possible, they stay in cheap hotels, or in schools and universities, and they even sleep in railway stations, in tents, or under bridges.
Young people in Europe often travel around by train. Now, with plane tickets dropping in price, more are traveling to countries far away. And some just travel within their own countries.
But no matter where a backpacker travels, planning in advance(提前) is important if he or she wants to enjoy the trip.
Clothing
In summer, light, waterproof (防水的) clothes are best. Backpackers must remember to travel lightly and not pack too many clothes.
Medicine
There are many medicines especially for summer, such as those for sunstroke (中暑). Others are useful in every season, such as those for common colds.
Cards
Three types of cards are valuable for backpackers: student Identity Card, personal ID and a credit card.
A student ID card can be helpful for saving money. It often gets train tickets and entrance tickets at cheaper prices in many western countries.
Personal ID cards can not only get you out of trouble with local police, but also prove useful in all kinds of other situations.
Carrying a credit card can be a safer way than carrying money, as cash can easily get lost, stolen or wet.
Travelers in a foreign country must always take care of their passports.
And of course, don’t forget to enjoy your trip!

根据短文内容回答问题(限10个词以内）。
According to Paragraph 2, what do backpackers usually carry in their backpacks?
根据短文内容回答问题(限15个词以内）。
Why do some backpackers sleep in railway stations?
把短文中画底线的句子译成汉语。
根据短文内容回答问题(限10个词以内）。
What is important for backpackers to do if they want to have a good trip?
根据短文内容用一个完整的英文句子(限15个词以内）回答问题。
What is this passage mainly about?