题目

根据实践经验,下列家庭小实验不能成功的是（） A . 将缝衣针淬火处理后制钓鱼钩 B . 用6B铅笔芯做导电实验 C . 用蛋壳和醋精制取二氧化碳 D . 冷碟子在蜡烛火焰上方制炭黑 答案：A Cathy、Jason、Kate、Wayne和Frank各自打算订一份杂志．第1至5题是他们的个人情况介绍． 阅读下面六种杂志的简介(A、B、C、D、E和F)，选出符合各人需要的最佳选项．选项中有一项是多余选项． 1．A young mother raising her first child, Cathy tries to spend as much time as she can palying with her baby girl．She is eager to get more knowledge of child development and to better understand how young children look at the world． 2．Jason is a successful young businessman．He travels widely and enjoys adventures and challenges．Having been to many different countries, Jasin is still looking for new places to visit．His biggest dream is to see every corner of the world before he retires． 3．Smart and pretty, Kate is very popular among her friends．She takes great care of how she looks and has a great interest in fashion and the lifestyle of famous people．Besides, she also enjoys reading articles written especially for young girls． 4．Wayne teaches science in a middle school．He not only wants his students to know more about the modern science, but also tries hard to develop a curiosity about nature among his students．He is gathering materials for his students to read． 5．Frank is the father of a 10-year-old boy．He believes that in this fast-developing world parents should prepare their children fro lifelong learning at an early age．Therefore, in his opinion, the most important skill for children to learn is to discover things on their own．He is looking for a magazine for his son．