SWT一直都是PTE考试的重中之重，但因为机经命中率比较高，考生往往忽略了练习的重要性，背一遍机经就去考试了。考试的时候如果纯靠回忆，很容易在高度紧张的时候忘记，而且一旦题目稍有变化将会不知所措，大大影响作文成绩。由于PTE的交叉打分机制，SWT一定程度上也决定着阅读分数的高低。

今天，在做题目之前，我想说的是PTE的summarize written text必须通读全文，可能一些方法能够让你避免通读全文就可以知道文章大意，但是写出好的summary的前提就是弄清楚文章的行文结构。

PTE的小作文都属于学术性文章，那么英文学术文章有一个特点，即开头和结尾需要叙述文章主旨，这也是为什么大家在写大作文的时候要分开头，中间段和总结。我们接下来一段一段的解读

The history of marketers seeking the adviceof physicists is a short one, but an understanding of the Theory of Resonancemay give communications experts the edge. Resonance Theory explains the curiousphenomenon of how very small pebbles droppedinto a pond can create bigger waves than a large brick. Thebrick makes a decent splash, but its ripples peter out quickly. A tiny pebbledropped into the same pond, followed by another, then another, then another,all timed carefully, will create ripples that build into small waves.                  

As Dr Carlo Contaldi, a physicist atImperial College London, explains, a small amount of energy committed at justthe right intervals – the ‘natural frequency’– creates a cumulatively large effect.

Media consultant Paul Bay believes that justas with pebbles in a pond, a carefully choreographed and meticulously timedstream of communication will have a more lasting effect than a sporadic bigsplash during prime-time TV breaks.

Innocent is a testament to the power of pebbles. Until lastyear, the maker of smoothies had never advertised on TV, instead drip-feedingthe market with endless ingenious marketing ploys – from annotating its drinks labels with quirky messages tohosting its own music festival, Fruit stock. The company sent a constant streamof messages rather than communicating through the occasional big and expensivenoise.

So, whether you’re trying to makewaves in the laboratory or in the media, the people in white coats would advisea little and often. A big budget is not the prerequisite for success.

解析：

第四段：作者举了一个例子来例证第三段所说的观点，那么从结构来分析，第四段就是第三段的supporting idea，我知道很多同学又要问这样一个问题，就是文章中的例子需要加么？如果不加，电脑会不会觉得这是得分点从而扣分，如果加了，电脑会不会觉得啰嗦？我们来看一下官方的解释：

“Compare your summary to the original text, the best response will clearly summarize the main idea and condense the essential support ideas”大家看懂了么？这里说道最好的答案会总结出文章主旨，并且将论点的主要支撑句浓缩归纳进来。所以如果你没有压根没有提这个例子，会扣分，但是如果把这个essential supporting idea花大篇幅去写同样也会扣分，正确的写法应该是在你的summary中以“such as, including 或者 it can be shown in”一笔带过。再多提一点，这里官方说是essential supporting ideas，所以对于那些supporting idea里的 supporting idea，比如这题当中的“annotating its drinkslabels with quirky messages to hosting its own music festival, Fruit stock”就没有必要提及了，因为这是支撑句中的例子。

第五段：全文的总结，“长期的有规律性的投资比一次性巨额投资所带来的收益和回报要高”其实你会发现，就这一题而言，你光读开头和结尾也可以知道主旨是什么。