题目

已知反比例函数，下列结论中不正确的是 A. 其图象经过点 B. 其图象分别位于第一、第三象限C. 当时，y随x的增大而减小 D. 当时， 答案：【答案】D【解析】根据反比例函数的性质及图象上点的坐标特点对各选项进行逐一分析即可．A、当时，，此函数图象过点，故本选项正确；B、，此函数图象的两个分支位于一三象限，故本选项正确；C、，当时，y随着x的增大而减小，故本选项正确；D、当时，，当时，，故本选项错误，故选D．It doesn’t matter if you have one friend or 20, because there are only a few people in this world that can make you truly happy. For me, my family and my three best girlfriends mean everything to me.Some days I didn’t want to go to school because I felt so disappointed in myself but I don’t regret a thing. It makes you stronger as a person, and if you are able to mend your friendships as I have done, then you can do anything.My mother always told me, “Stephanie, remember that a friend is a gift that you give yourself. A friend will make you laugh and be there for the good or bad. A true friend will never make fun of you. If a friend is a piece of work, then he or she has never been a friend at all. A friend is the biggest gift to yourself.”Everyone is going to make mistakes but please don’t push them away, especially if it’s someone you really care about. I know when I make a mistake I beat myself up about it. I just wish someone would reach out a hand to help me back  on my feet as my best friends did. If someone is new or doesn’t have a friend, please reach out and behind him/her because that small action could mean the world to him/her. Now that I’m older, I understand what my mom has been trying to tell me, and now I know that the friends that I choose will also be the kinds of friends that I would want to be surrounded by forever.【小题1】According to the passage, a true friend should be a person that _________.A．often gives you giftsB．makes you happyC．does both good or bad things to youD．seldom makes fun of you【小题2】It can be inferred from the passage that the writer _________.A．understands what a friend means to her B．doesn’t think that friends will make her truly happyC．doesn’t have many friendsD．has nothing except her family and three friends【小题3】If you hope to have a friend, you should do the following EXCEPT_________.A．giving advice and offering help if he or she makes mistakesB．regarding him or her as a piece of workC．considering him or her a valuable giftD．trying to treat a newcomer as a friend【小题4】The last sentence probably means_________.A．people around me are all my friends B．I only choose the people around me to be my friendsC．the friends I choose will surround me every dayD．my true friends would always be by my side for my joys and sorrows