阅读文章后，从第54至58题所给A、B、C、D四个选项中，选出最佳答案。
Most people call it "body language" —the clues（线索） to the meaning that we get from gesture, facial expressions, posture —everything that isn't spoken．Experts call it "nonverbal communication," but it means the same thing: a second source of human communication that is often more reliable to understanding what is really going on than the words themselves．
Understanding body language is important to success, whether in the business world or in our personal lives．However, most of our ideas about body language are wrong, according to modern communication research．
There is a belief that people with shifty （变化的） eyes are probably lying．As Paul Ekman says, "When we asked people how they could tell if someone was lying, too much blinking（眨眼） and shifty eyes were the winners．But sometimes people act like that because they are shy．Liars pretend to be calm in order not to be caught．
Ekman goes on to argue against such a wrong belief．Although this kind of body language is probably an expression of nervousness, it is not always because the person is lying．Shyness can, for example, make people shift their eyes．To understand what someone's behavior means, you have to watch them carefully．
There is also a belief that when meeting someone, the more eye contact, the better．As a result people would like to make initial （开始的） contact in formal situations, like a job interview, by staring fixedly at the other human．Yet Ekman points out that most of us are comfortable with eye contact lasting a few seconds, but any eye contact that is longer than that can make us nervous．
In short, you must carefully consider the speaker and the speaking environment．Experts suggest that unless you know about someone's basic communication style, you will have little hope in understanding their true feelings through body language．In other words, body language carries important but not always true messages．
小题1:According to the passage, body language is _____．

A．a language that is not spoken	B．a clue to get the meaning
C．a reflection of people's behaviors	D．a source of human communication

小题2:The word "that" in paragraph 3 refers to ____．

A．blinking

B．lying

C．staring

D．pretending

小题3:From the passage we can learn that ____．

A．there is no doubt that a liar has shifty eyes

B．people sometimes blink because of shyness

C．eye contact lasting a few seconds can make us nervous

D．understanding body language is more helpful in business

小题4:How many examples are given by the writer to support his point of view?

A．1．

B．2．

C．3．

D．4．

小题5:It can be inferred from the passage that _____．

A．body language is trustworthy in telling who is lying

B．body language helps us better understand other people

C．sometimes we can't judge a person by watching his body language

D．the speaker and the speaking environment are important to a person's body language