题目

In every. country, there are thousands of people who want to help out. Many join organizations run by their governments, for example, the Peace Corps in the United States and Voluntary Service Overseas in Britain. Since the powerful （猛烈的） earthquake took place in Sichuan, more than 200 thousand volunteers （志愿者） across China have been helping there! They do all kinds of work or come up with ways to help improve life. Some offer their professional skills for free. Others have no qualifications （资格）, but they love to work hard to help. One of the most famous volunteers管仲相桓公，霸诸侯，一匡天下，民到于今受其赐。    -----《论语》 （1）材料中“管仲相桓公”是什么意思？发生在什么时期？ （2）为了能够“霸诸侯”，齐桓公采取了哪些措施？结果怎样？