Have you ever thought about seeing the world for free? Although it may sound impossible, there’s a growing community that is making that dream one step closer.
The community is called Couchsurfing. The idea is that people open their homes up to travelers for free, and in exchange both people will learn from each other.
Instead of paying a lot of money staying in hotels, living with locals is both cheap and authentic(正宗的). Maybe you’ll find a hidden attraction in the city. It may be a good place where people like to visit. This is also your chance to ask what life in their country is really like.
It also works as a culture exchange. For example，if you play the guitar and your host is a great cook, teach him or her how to play to say thank you for the dinner. This type of exchange is popular.
But what are some manners of being a good Couchsurfer? First, be careful about cultural taboos(禁忌). For example, if you eat with Indians, never use your left hand. In Indian culture, left hands are used for the toilet. Also, when you are going to leave, it’s a good idea to prepare a small gift. This shows your appreciation to the home owner.
Now, are you ready to travel like a local? Where will you surf first?
According to the passage, what’s the Couchsurfing?

A．A travel way to offer the travelers their homes for free.

B．Offer food to the travelers for free.

C．Show some places of interest for free.

D．Take the travelers to some places in the city for free.

What does the underlined word “appreciation ” mean?

A．客气

B．准备

C．感激

D．欣赏

What should we do if we eat with Indians?

A．Don’t eat with the right hand.

B．Don’t eat with the left hand.

C．Eat with two hands.

D．Don’t eat with hands.

What’s the main idea of the passage?

A．Hidden city.

B．Surfing on the Internet.

C．A community in the city.

D．A cheap way to travel and manners.