题目

如图是反比例函数y＝的图象的一支，根据图象回答下列问题： (1)图象的另一支在哪个象限？常数n的取值范围是什么？ (2)若函数图象经过点(3，1)，求n的值； (3)在这个函数图象的某一支上任取点A(a1，b1)和点B(a2，b2)，如果a1＜a2，试比较b1和b2的大小． 答案：解：(1)图象的另一支在第三象限．       (2分) 由图象可知，>0，解得：>2      (4分) (2)将点(3，1)代入得：， 解得： (6分) (3)∵>0，∴在这个函数图象的任一支上，随减少而增大，   ∴当1<2  时 ，1>2      (8分)  17．随着年龄的增长，不少青少年发现越来越难与父母沟通和交流，各方面的分歧使两代人之间的关系日益紧张．请围绕该话题用英语谈谈你的看法．要求：（1）内容包括   ①分析这种现象产生的主要原因；②提出解决该问题的具体建议．（2）字数：60-80字（3）短文中不得出现你的真实姓名、学校名和地名．I don't like my parents．（父母的表现）They always tell me I should do this，and should not do that．It sometimes makes me angry，“said Zhang Hua，a middle school student．Almost every teenager have the same question．Why？（原因）One of the biggest things is when someone becomes a parent，he/she likes worrying things．They worry about everything about you，from the time you were born．All these things are part of your life．They want you to grow up healthily and happily．So how can you make things easier on yourself？（建议）Just make sure your parents know what you're doing．Get them to know your friends．Phone if you stay somewhere else so that your parents don't call every hospital in the phone book looking for your body．Say sorry to them when you make mistakes．Take responsibility for what you have done．Talk about your ideas with them．Most of all，try to think about why your parents do this or do that．Someday，when you become a parent，they may be able to help you how to get on with your children．（总结全文）．