修辭目的題，亦稱例證，是每篇文章必出的題型。該題型經過一定量的訓練，完全可以做到考試時不失分，因為其做題規(guī)律極強。武漢頂尖英語的Marina老師主要講解*種解法，也是最常見的解題思路?，F用TPO中一例說明：
Paragraph5: Scientists have known for some time that certain plants, called hyper accumulators, can concentrate minerals at levels a hundredfold or greater than normal. A survey of known hyper accumulators identified that 75 percent of them amassed nickel, cobalt, copper, zinc, manganese, lead, and cadmium are other minerals of choice. Hyper accumulators run the entire range of the plant world.They may be herbs, shrubs, or trees.Many members of the mustard family, spurge family, legume family, and grass family are top hyper accumulators. Many are found in tropical and subtropical areas of the world, where accumulation of high concentrations of metals may afford some protection against plant-eating insects and microbial pathogens.
Why does the author mention herbs, shrubs, and trees?
¡ To provide examples of plant types that cannot tolerate high levels of harmful minerals.
¡ To show why so many plants are hyper accumulators.
¡ To help explain why hyper accumulators can be found in so many different places.
¡ To emphasize that hyper accumulators occur in a wide range of plant types.
題中問為何提到這三種植物，正常的思維是作者為了說明前面的概述，因此往前看一句即可：Hyper accumulators run the entire range of the plant world。意思為富集植物廣泛分布于整個植物界。不難得出答案為第四個. 這是修辭目的題最基本的解題方法，我們稱之為“繞過例子看概述”，如果還有更多托?？荚嚨囊蓡柖伎梢宰稍僊arina老師
