雅思阅读信号词作用一：顺接和递进
例词：also, furthermore, moreover, what is more, in addition
考点：And Western scientists are starting to draw on this wisdom... (C6-P28-Q31 找标题)
解析：And在这句话开头，有一定的递进含义，this wisdom则是指代了前面一句话出现的their wealth of traditional knowledge(因纽特人传统的知识)，所以这两句话有紧密的联系，在读题的时候要通过发现信号词，然后发散地看它的前后句，比较后把考点考察的意思补充完整。
雅思阅读信号词作用二：对比和转折
例词：however, but, although, nevertheless, on the other hand, by comparison, while
考点：But such projects must be built to higher specifications and with more accountability to local people and their environment than in the past. (C7-P24-Q20)
解题：此题是段落大意配对题，在确定H段段落大意时，段落中间but之后出现的那句话就是解题的关键，根据句子中出现的两个比较级，可以确定答案应该为X:The need to raise standards.
考点：While suggestopedia has gained some notoriety through success in the teaching of modern languages, few teachers are able to emulate the spectacular results of Lozanove and his associates. (C70-P27倒数第二段-Q39, 40)
解析：段首句用while引起注意，我们可以根据success以及后半句中的few teachers和spectacular results搞定比较后两个填空题。
