题目

.鉴别下列各组物质，括号中所选择的试剂或方法错误的是               A．汽油和蒸馏水（闻气味）          B．O2和N2（带火星的木条） C．硬水和软水（过滤）              D．食盐水和双氧水（MnO2） 答案：C 第二节  读写任务(共l小题，满分25分) 阅读下面的短文，然后按照要求写一篇150词左右的英语短文。 There are many advantages in working part-time while you are in school. Firstly, a part-time job offers you a chance to demonstrate(表现出) your ability and to apply(应用) what you have learned in school. Secondly, a part-time job helps you become more independent of your family. Thirdly, the experience that you gain through part-time job can broaden your school life.     However, a part-time job has some disadvantages. For example, you may lose time needed for sleep, rest, study, club activities, and recreation. Working several hours a day consumes a lot of time and energy and may affect study. As a result, you may find it hard to adjust to what the school expects from you as well as what your employer has the right to expect.     Because of the advantages and disadvantages of a part-time job, you have to strike the balance between school and the job. As a student, acquiring more knowledge, especially more book learning, is your first important task. Although a part-time job can do you a world of good, you should not spend too much time on it.    【写作内容】 概括短文的内容要点，该部分大约30词。 就“大学生学习期间该不该打工”这个主题发表你的看法，至少包括以下的内容要点，该部分大约120词： 现在流行大学生边学习边打工的现象； 人们对大学生学习期间打工的看法； 你对大学生学习期间打工持什么看法？为什么？   【写作要求】  你可以使用实例或其它论述方法支持你的论点，也可以参照阅读材料的内容，但不要抄袭阅读材料中的句子。 【评分标准】  概括准确、语言规范、内容合适，篇章连贯。