your body or behind your back，this suggests you are not afraid of taking on whatever comes your way."可知，把胳膊放在背后表明不害怕，故选D。]

　　2．If you want to appear confident, you should ．

　　A．cross your arms

　　B．move your head a little

　　C．keep your head level

　　D．move your arms a lot

　　C　[细节理解题。根据第三段第二句"When you want to appear confident，keep your head level."可知，如果你想要表现得自信，应该把头保持水平，故C项正确。]

　　3．Which of the following movements shows someone is nervous?

　　A．Not sitting straight with the shoulders inwards.

　　B．Moving around a lot more than normal.

　　C．Keeping the arms to the sides of the body.

　　D．Having the lips pursed to hold back an angry comment.

　　B　[细节理解题。根据第四段第二句"Your legs tend to move around a lot more than normal when you are nervous or telling lies."可知，当你感到紧张的时候，会比平时更频繁地来回走动，故B项正确。]

　　4．What can we infer from the passage?

　　A．Body language can express more meanings than words do in communication.

　　B．It's not polite to use body language in formal communication.

　　C．Different people in different countries must have the same understanding of the same body movement.

　　D．We cannot communicate with others without

　　words.

A　[推理判断题。根据第一段第二句"It is said that our body movements communicate about 50 percent of what we really mean while words only express 7