Travel is useful to us in at least three ways.
First, by t 【小题1】 we can enjoy the beautiful scenery (风景) of different place. We can see   many which can be read about in books w 【小题2】  our eyes and v 【小题3】  some famous cities and interesting places.
S 【小题4】 , we will meet people with different interests and see strange and different things when we travel. We can get ideas of the conditions and customs(风俗) of o 【小题5】   people, taste different foods and local favors(偏爱) if we like. I 【小题6】 this way, we can understand how other different people live.
Third, travel will help us gain（获得）k 【小题7】 of geography and history , travel will also help us keep h  【小题8】  and strong.
With all these a  【小题9】 of travel, it is no wonder that travel has now become more p 【小题10】   than ever in China.

There is one language, and people, young and old , men and women, use it very often, in every country in the world. It is everyone’s second language . You can’t hear it, but it is very easy to understand . It is sign （手势 ）language.
When you wave（招手）to a friend in the street, you are using sign language. When you put up your hand in class, you are saying “Please ask me, I think I know the right answer”. When a police officer wants to stop cars or buses, he puts up his hand. He’s using sign language. Churchill’s famous “V  for Victory（胜利）”is also sign language. Sign language is useful（有用的）in quite places full of noise (吵闹声). Even when you are swimming with your friends , you can have a talk under water.
【小题1】      in the world use sign language.