其次，如何展开一个观点，关键在于是否能够灵活运用论证方式。常用的论证方式包括：解释(explanation)，延伸(extension)，举例(exemplification)和对比(contrast)等，如：

　　A lot of innovations are made with the aim of making money for a few. This is BECause it is the rich and powerful people in our society who are able to impose changes (such as in working conditions or property developments) that are in their own interests. (第二句为解释论证)(《剑6》Test 4)

　　My view is that young people should be encouraged to broaden their horizons. That is the best way for them to get a clear perspective of what they are hoping to do with their lives and why. (第二句为延伸论证) (《剑5》Test 2)

　　To do this, we need to improve the choice of public transport services available to travelers. For example, if sufficient sky train and underground train systems were built and effectively maintained in our major cities, then traffic on the roads would be dramatically reduced.(第二句为举例论证)(《剑8》Test 3)

　　The reasons for this trend may involve the recognition that a young adult who passes directly from school to university is rather restricted in terms of general knowledge and experience of the world. By contrast, those who have spent some time earning a living or traveling to other places, have a broader view of life and better personal resources to draw on. (第二句为对比论证)(《剑5》Test 2)

　　最后，提高写作速度，其关键在于“固定”。要想在那么短的时间内，在考场上高度紧张的状态下写出满足字数要求同时又非常优秀的文章来，的确是非常困难的，但是雅思考官曾讲过，考场上任何一篇优秀文章中的每一个单词都是经过精心准备的。因此，要想保证字数同时又保证质量，考前精心的准备和设计是非常必要的。如：

　　固定开头段

　　The late 20st century witnessed the every surging boom of advanced technology, which has brought attention to a heated debate concerning whether housework should be accomplished manually.

　　The late 20st century witnessed the ever surging boom of the world population, which has brought attention to a heated debate concerning whether people should be encouraged to move into skyscrAPers.

　　固定常用句型

　　引导观点或者解释论证

　　It is a widely held perception that…

　　It is a commonly shared convention that…