题目

等式4（x-2）＞2（3x+5）的非负整数解的个数为（ ）A．0个 B．1个 C．2个 D．3个 答案：【答案】A．【解析】试题分析：去括号得，4x-8＞6x+10，移项得，4x-6x＞10+8，合并同类项得，-2x＞18，系数化为1得，x＜-9．所以不等式的非负整数解为0个．故选A．  If the eyes are the windows of the soul,then the body is the mirror (镜子)of our feelings. If we are feeling great,we may give our body signals. If we look at someone else's body,we can often tell how they are feeling by their body signals. So reading body language signals is a great tool (工具)in daily communication.  In case (假使)you don't think that learning how to read and use body language is important,here are some numbers for you. 7% of the information we receive is from what people actually say,and 38% of the information we receive is from the tone (语气)and the speed of their voice ; while 55% of the information we receive is from their body language.  These non-verbal (非口头的)signals will help you a lot,but you still need to pay attention to what people are saying. If you pay too much attention to their body language signals，you and the person may feel uncomfortable. It is useful to be able to read people's body language ， but it is useful to learn how to send the right signals and avoid the wrong signals,too. Body language may be given several interpretations (解释).Many signals have different meanings，depending on the person and the situation. Be sure of it when you are trying to read a body language signal.根据短文内容，选择正确答案。(   ) 1. The numbers mentioned in the second paragraph are to_______ •A.  explain what body language isB.  show the importance of body languageC.  tell us body language is less used than verbal languageD.  tell us body language is the only tool in communication (   ) 2. What is the meaning of the underlined sentence in the last paragraph?A.  Body language is widely used all over the world.B.   Body language can be explained in different ways.C.   It's too hard to  understand the meanings of body language.D.  People have already looked through many books on body language.(   ) 3. According to the,writer,body language is very______ .A.  simple to learnB.   negative to be usedC.   hard to understandD.  helpful in communication(   ) 4. According to the passage，which of the following is TRUE?A.  Body language is uncomfortable.B.   What people are saying is not inportant.C.   Body language can show your feelings.D.  To send wrong signals is not body language.(   ) 5. We can infer (推断)that the writer will most probably talk about      next.A.  what the wrong body language signals areB.  examples of how to understand body language correctlyC.  numbers about how many people wrongly use body languageD.  an analysis (分析)of why people wrongly understand body language