If you can speak English，you know a lot of English words. You can read, speak and understand. But there is another kind of language you need to know—the language of the body, a part of what is called non-verbal communication. All over the world，people “talk” with their eyes. When Japanese people meet，they put their hands together. What do the American and the British do?
Americans are more informal than the British. They like to be friendly. They use first name，they ask questions and they talk easily about themselves. When they sit down, they like to relax in their chairs and make themselves comfortable.
British people are more quiet. They take more time to make friends. They like to know you before they ask you home.
When British and American people meet someone for the first time，they shake hands. They do not usually shake hands with people they know well. Women sometimes kiss their women friends，and men kiss women friends（on one cheek only）.When a man meets a man friend，he just smiles，and says “Hello”. Men do not kiss each other. Even fathers and sons do not often kiss each other.
49.Body language is ___________.
A. the system of human expression newly invented recently
B. the system of human expression by means of words
C. the system of human expression by sign, movements, etc.
D. a common system of human expression with words and signs
50.When an American man meets a woman friend，he .
A .kisses her B. just smiles C. says “Hello” D. shakes hands
51.British people are .
A. as quiet as Americans B. more formal than Americans
C. less friendly than Americans D. more informal than Americans
52.From the passage we can come to the idea that .
A. most of the body language in different countries may be different
B. most of the body language in different countries is the same
C. all the body language in different countries is different
D. none of the body language in different countries is the same