1.PREP1----ESSAY3----注意破折号 Many commentators believe that this change had already occurred in 1871 when--following a dispute between the House and the Senate over which chamber should enjoy primacy in Indian affairs--Congress abolished the making of treaties with Native American tribes.
2.PREP1-ESSAY3--注意很多OF的情况 In his study of the Lone Wolf case, Blue Clark properly emphasizes the Court's assertion of a virtually unlimited unilateral power of Congress (the House of Representatives and the Senate) over Native American affairs.
3.PREP1--EASSY3--注意现在分词至于句尾,表伴随状态,逻辑主语=句子主语 But in reality the federal government continued to negotiate formal tribal agreements past the turn of the century, treating these documents not as treaties with sovereign nations requiring ratification by the Senate but simply as legislation to be passed by both houses of Congress.
4.PREP1--EAASY3--主语did away with what~~~ The Lone Wolf decision ended this era of formal negotiation and finally did away with what had increasingly become the empty formality of obtaining tribal consent.
5.PREP1--ESSAY2--注意the more~~, the fiercer and the smaller句型 The more numerous the competitors, the fiercer the competition will be and the smaller will be the incentive for new firms to enter the field.