lity(交流质量)大体上与Task 1的Coherence and Cohesion相同，也涉及文章中代词，关联词，同义反义词等的运用。常用的关联词有：对比however, although, but, nevertheless；结果as a result, as a consequence, therefore, because of this, otherwise；附加in addition, additionally, and, as well as, furthermore, also, moreover；举例for example, for instance, such as, including；强调in fact, indeed；时间after, following, before, until, during, between, while等。

　　议论文在Vocabulary and Sentence Structure方面与Task 1的要求相同。