透明聚酯玻璃钢可用于制造导弹的雷达罩和宇航员使用的氧气瓶．制备它的一种配方中含有下列四种物质：

（1）丙的名称是____ ；乙中官能团的名称是____ ．

（2）写出甲和丙聚合得到高聚物的结构简式　____ 　．

（3）化合物丁的分子式为C₆H₆O₂，只含两种化学环境的氢原子，遇FeCl₃溶液呈现特征颜色．写出丁与足量碳酸钠溶液反应的化学方程式____ ．

（4）下列试剂中与上述四种物质都能发生反应的是____ （填写编号）．

a．Br₂的CCl₄溶液     b．石蕊溶液      c．酸性KMnO₄溶液     d．O₂．

嘉兴市某实验学校是一所百年老校，为了更多地了解学校的历史，王林利用休息日进行了调查。

王林首先到镇文化办查阅了新出版的《地方志》，从中了解到了学校的办学历史；收集到了学校原来的一些老照片；去学校旧址进行了实地考查，找到学校过去遗留的一些书桌和原始的档案文件。他还走访了镇上的一些老人，请他们讲述当年在学校学习和生活的情况。

下列各句中，标点符号使用正确的一句是 (　　)

阅读理解

    One of the main challenges facing many countries is how to maintain their identity in the face of globalization and the growing multi-language trend. "One of the main reasons for economic failure in many African countries is the fact that, with a few important exceptions, mother-tongue education is not practiced in any of the independent African states." said Neville Alexander, Director of the Project for the Study of Alternative Education in South Africa at the University of Cape Town.

    In response to the spread of English and the increased multi-language trends arising from immigration, many countries have introduced language laws in the last decade. In some, the use of languages other than the national language is banned in public spaces such as advertising posters. One of the first such legal provisions(规定) was the 1994 "Toubon law" in France, and the idea has been copied in many countries since then. Such efforts to govern language use are often considered as futile by language experts, who are well aware of the difficulty in controlling fashions in speech and know from research that language switching among bilinguals is a natural process.

    It is especially difficult for native speakers of English to understand the desire to maintain the "purity" of a language by law. Since the time of Shakespeare, English has continually absorbed foreign words into its own language. English is one of the most mixed and rapidly changing languages in the world, but that has not been a barrier to acquiring superiority and power. Another reason for the failure of many native English speakers to understand the role of the state regulation is that it has never been the Anglo-Saxon way of doing things. English has never had a state-controlled authority for the language, similar, for example, to the Academic Francaise in France.

    The need to protect national languages is, for most western Europeans, a recent phenomenon—especially the need to ensure that English does not unnecessarily take over too many fields. Public communication, education and new ways of communication promoted by technology, may be key fields to defend.