托福閱讀常見十種題型，包括大家常見的詞匯題和事實信息題。在這十種題型中，修辭目的題，跟其他題型不同，它注重考察單詞，短語或是句子在句子之內或句子之間起到的作用，這就要求大家平時閱讀時，在涉獵原文細節(jié)信息的基礎之上，要有意識地注意句子之間的邏輯關系以及段落的結構。通過練習培養(yǎng)嚴謹的句子邏輯關系和緊湊的文章構架，對于無論是寫作還是口語都有著一定的幫助。

此次目的題參考的內容基本可以分為三類，其一，作者在句中提到一些單詞或短語或是句子是為了舉例說明之前的相關信息點，輔助讀者更好地理解原文的信息。其二，作者提供相關信息目的在于解釋說明某一現象或是事件，本質與舉例說明較為類似，也是為了幫助讀者更好地理解信息，其三，作者在提出某些重要的觀點時，為了突出個別的信息點，而引入一些單詞短語或句子，目的是為了強度?；趯π揶o目的題作者寫作目的本身的分析和理解，我們可以更好地解決相關題目。以下以第一種舉例說明的情況為例，重點講解如何解決此類題目。

我們來看一道題，此題出自TPO14--children and advertising中的第10題，題干問why does the author mention a show about a cartoon lion in which an advertisement appears featuring the same lion character?根據題干關鍵詞定位到文中對應的句子，Host selling occurs, for example, when a children's show about a cartoon lion contains an ad in which the same lion promotes a breakfast cereal.讀完句子看到句中的插入短語for example，知道此句式為例子，屬于舉例說明，我們都知道例子是用來證明之前的信息，所以向前反推，看到緊接其前這樣的內容In the recent past, the role of celebrities in advertising to children has often been conflated with the concept of host selling. Host selling involves blending advertisements with regular programming in a way that makes it difficult to distinguish one from the other.這兩句第一句解釋了host selling，第二句提到host selling的影響，所以得知緊接其后的句子是為了例證這兩點信息，即host selling的概念以及它產生的影響。得出正確選項To help explain what is meant by the term "host selling" and why it can be misleading to children。

再比如TPO16中trade and the ancient middle east一文中第12題考到In paragraph 5, why does the author mention the new trade route opened up by Vasco da Gama's fifteenth century voyage around Africa?根據題干關鍵詞定位到原文句子：as occurred when European seafarers circumvented Middle Eastern merchants after Vasco da Gama's voyage around Africa in the late fifteenth century opened up a southern route.讀句子as表示正如…得知此處為舉例說明，例證之前的信息，看到前半句since the development of new international trade routes could undermine the monetary base and erode state power。得知提到Vasco da Gama's fifteenth century voyage around Africa目的是為了證明新的國際貿易路線的發(fā)展可能破壞貨幣基礎并且侵蝕國家權力。得出答案為To present an instance in which Middle Eastern states lost money and power because of their reliance on long-distance trade。

再如TPO25 The surface of mars一文中的第6題In paragraph 3, why does the author compare Maxwell Mons on Venus to the Hawaiian shield volcanoes on Earth?根據題干關鍵詞定位到原文句子It is no accident that Maxwell Mons on Venus and the Hawaiian shield volcanoes on Earth rise to about the same height (about 10 kilometers) above their respective bases-Earth and Venus has similar surface gravity.通過句中短語It is no accident that得知此處為舉例論證，所以向前看，緊接其前的句子為The lower the gravity, the lesser the weight and the greater the height of the mountain.可知原文想要闡述的信息是地心引力和山脈高度直接的關系，而且地心引力越低則重量越低，隨之山的高度越高，所以緊接其后比較Maxwell Mons on Venus 和the Hawaiian shield volcanoes on Earth完全是為了論證這個信息，由此容易選得正確選項為To help explain the relationship between surface gravity and volcano height。

修辭目的題中，舉例論證是?？键c，常見的表示舉例的提示性的單詞或短語有：for example/for instance/such as/as/as a example of/one of…/this is the case…等。如果題干中關鍵詞對應原文的句子里有相關的表示例證的單詞，短語出現，則向前看前面的句子，答案也就隨之浮現出來。所以在平時的閱讀練習中，大家一定要注意句子之間邏輯關系，句與句之間不是互相獨立的，而是緊密聯系，互相支撐，構建段落，甚至是全文。