各民族的交融、联系促进了世界经济的发展。阅读下列材料：
材料一　如果可以把1492年看作全球化的开始，那么大致可以看出全球化经历了这样几个阶段，首先是萄萄牙和西班牙人开创了现代全球化；然后是大英帝国、法国等欧洲国家开始大规模向全球殖民……
——白海军《大预言：2049年的世界》
材料二  19世纪末的经济发展，再加上海洋运输和铁路上的交通革命，培育出一种真正的世界经济。到1900年，欧洲人从阿根廷和澳大利亚进口牛肉和羊毛，从巴西进口咖啡，从智利进口硝酸盐，……欧洲资本同样投向海外，以建设铁路、矿山、电厂和银行。……欧洲通过其资本、工业及军事能力而在19世纪末统治了世界经济。
——杰克逊·斯皮尔伯格《西方文明史》
材料三　人民网《中国入世十年：改变自己影响世界》报道：“加入世界贸易组织十年，中国在世界贸易组织中的比重从4.3%提高到10.4%成为世界第一大出口国……中国国内生产总值从全球排名第六位跃居到第二位，年均增速11%……中国平均每年进口7500亿美元的商品相当于为贸易伙伴创造了1400万个就业岗位。”
请回答：
（1）材料一中葡萄牙和两班牙人开创“全球化”的标志性事件是什么？对世界历史有何重大影响?
（2）19世纪末以欧洲为中心的资本主义世界市场形成。依据材料二分析这一现象出现的原因。
（3）据材料三，指出中国融入经济全球化的影响。

阅读理解

                                                                  Warley Woods Community (社区) Trust

    Welcome to our third news letter of the year!

    Our main activity for March is our Walk for the Woods fundraising events on Saturday, 17th March, starting any time between 10 a.m. and 2 p.m. We will be walking the distance between Warley Woods and Tipperary. It is indeed a long way — 80 miles. The more people that you can get sponsor you, the more money we can raise to helplook after our beautiful woodland. More information is available at ourwebsite.

    The Sunday volunteers planted two beeches and an oak last week. This was thanks to the money from the Big Tree Plant and to Lisa and Gordon Whitiker, whose friends gave money forthe big trees instead of for their wedding presents. Thanks to everyone who took part.

    There were 15 volunteersat the Oral History Training Day which was led very ably by Julia Letts. The group will be meeting again and will start to interview the local people whohave offered to tell their stories. We are happy to hear from others who would like to be interviewed about their memories of the Woods for the project. If you or anyone you know is interested, please call Viv Cole at the office. This project is financed by Heritage Lottery Fund.

    There was a huge response to the Forest Schools activities held at half term. These will be held again during the Easter holidays on the following dates: 4th April from 10 a.m. to 3 p.m. for over 8s. On 12th April form 10 a.m. to 12 noon, there will be a Teddy Bears' Picnic for the under 8s. All these must be booked in advance.

    Finally, don't forget the Easter Egg Roll on Bank Holiday, 9th April, staring at 11 a.m. Bring your ownhard-boiled and decorated egg to roll down the hill in the woods. The firstpast the finishing line will win a large chocolate egg! This year, due to popular demand, there will also be an Adults' Easter Egg Roll following the children's competition.

    We look forward to seeing you all soon, at one of our many events.

有学者指出：“(西汉)首先遇到的第一个大问题是帝国跨地过广，不能全部由中央集体管制， 于是采取了一种‘斑马式’的省级组织。”体现这种‘斑马式’省级组织的制度是

先化简：$\frac{m^2}{m-1}$﹣$\frac{1-2m}{1-m}$，再选取一个适当的m的值代入求值．