题目解析：
【题目翻译】：
根据第1段，1788-1799反对葡萄牙统治的阴谋怎么了？
A：最终在巴西的某些省份引起了不满
B：它越来越受到葡萄牙共和主义思想的影响
C：在超出规划阶段之前就已经被粉碎了
D：它逐渐失去了城市社会下层的支持
【判定题型】：题目问的是文章中的具体细节信息，故根据题目问法可以判断本题为事实信息题。
【关键词定位】：根据关键词paragraph 1 , 1788-1799，定位到文中第3句，原句
The first significant conspiracy against Portuguese rule……caused much discontent.” 巴西在1788年到1799年间，在米纳斯吉拉斯州境内，组织了对葡萄牙统治的第一次重要的反叛，严苛的政府控制了生产、黄金和宝石的价格并让人民负担沉重的捐税，引起了诸多的不满。接着，第4句话也是在描述这次叛变“But this conspiracy never went beyond the stage of discussion and was easily discovered and crushed.”说明这次叛变还没经过商讨就已经败露，并被镇压了。
【逻辑分析】：C选项中多说的，该叛变还没计划好，就被镇压了与关键词所在句子意思相同。
【选项分析】：
C选项中多说的，该叛变还没计划好，就被镇压了，故C选项正确。
A选项说这次叛变在巴西的一些省造成了很多不满。但原文说的严苛的政府统治、沉重的赋税引起了群众的“discontent”，并不是叛变造成的不满。
B选项说这次叛变越来越受到葡萄牙共和党思想的影响。但是我们根据关键词“republican ideas”找到第一段倒数第3句话“ Other conspiracies in the late eighteenth century as well as a brief revolt in 1817 reflected the influence of republican ideas over sections of the elite and even the lower strata of urban society.”这句话说的是其他的叛变，反应了共和党的想法对一些精英，甚至是对下层社会所造成的影响。与1788-1799年的政变毫无关系。可以直接排除。
D选项说这次叛变渐渐失去了下层社会的支持。“lower strata”出处同上述B选项中的句子，不仅在文中没有提到下层社会支持，而且也与1788-1799年的政变无关，故排除。
In contrast to the political anarchy, economic dislocation, and military destruction in Spanish America, Brazil's drive toward independence from Portugal proceeded as a relatively bloodless transition between 1808 and 1822. The idea of Brazilian independence first arose in the late eighteenth century as a Brazilian reaction to the Portuguese policy of tightening political and economic control over the colony in the interests of the mother country. The first significant conspiracy against Portuguese rule was organized from 1788-1799 in the province of Minas Gerais, where rigid governmental control over the production and prices of gold and diamonds, as well as heavy taxes, caused much discontent. But this conspiracy never went beyond the stage of discussion and was easily discovered and crushed. Other conspiracies in the late eighteenth century as well as a brief revolt in 1817 reflected the influence of republican ideas over sections of the elite and even the lower strata of urban society. All proved abortive or were soon crushed. Were it not for an accident of European history, the independence of Brazil might have been long delayed.
