题目

已知一次函数y＝x－b与反比例函数y＝的图象，有一个交点的纵坐标是2，则b的值为________． 答案：－1 解析：将y＝2代入y＝，得x＝1.再将点(1,2)代入y＝x－b，得2＝1－b，b＝－1.阅读下面短文，根据以下提示：1）汉语提示，2）首字母提示，3）语境提示，在每个空格内填入一个适当的英语单词；并将该词完整地写在右边相对应的横线上。所填单词要求意义准确，拼写正确。 Sometimes you can learn more about what a person is trying to say just by watching instead of l    . You might be talking to someone 1.           about an idea you have. He might say that he’s interested     your idea. 2.            Just watch his face. Is he l      at you or are his eyes moving around, 3.           just tired of w    you’re saying ? It’s important to watch other’s body 4.           language carefully because it provides a lot of useful       （信息）. 5.           Sometimes a person will be speaking too q     or use words that you  6.          don’t understand. If you pay attention to the     （信号）he is giving, 7.           maybe you can still follow him, even    you’re not sure of the meaning 8.           of the words. This is especially     (有必要的)when watching TV or 9.           in other situations        you can’t ask the speaker to slow down.   10.