在托福英語口語的最后一道題中,，有兩種結(jié)構(gòu)。一種是兩個(gè)分論點(diǎn)+例證式,；另一種是理論+實(shí)驗(yàn)式,。典型的第6題在開頭會(huì)出現(xiàn)一個(gè)中心句（Topic sentence），該中心句可能會(huì)解釋一個(gè)概念,，強(qiáng)調(diào)一個(gè)問題或介紹一種現(xiàn)象,，然后在中心句下會(huì)出現(xiàn)兩個(gè)分論點(diǎn)（Subtopics）,每個(gè)分論點(diǎn)下面會(huì)有一個(gè)例證來對(duì)其進(jìn)行解釋。

聽懂中心句非常重要,，它決定了聽力的方向,。沒有方向，即使聽懂了分論點(diǎn)和例證,，也還是沒有任何意義,。因?yàn)榉较虿粚?duì)。所以我們必須拿下中心句,。根據(jù)TPO的題目,，中心句的出現(xiàn)分為三種模式，如果我們熟悉這三種模式,，就為聽懂中心句奠定了基礎(chǔ),。

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Pattern 1: 單刀直入   TPO的很多題目中，開頭前三句話就能把講座的中心句表達(dá)清楚,，所以對(duì)我們來說,，全神貫注地聽懂前三句至關(guān)重要。
TPO 24
Authors of fiction, short stories and novels, of course have many decisions to make when they are writing their works. One of those decisions is how they are going to narrate or tell the story, what perspective or what point of view the story will be told from. So authors need to choose a type of narrator.

Step 1: 抓前3句
Step 2:總結(jié)：The topic of this lecture is how authors are going to narrate a story, and what perspective or what point of view the story will be told from.

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Pattern 2: 猶抱琵琶半遮面
虛晃一槍的事情在學(xué)術(shù)講座中也時(shí)有發(fā)生,，這種中心句的尋找關(guān)鍵在于聽到了轉(zhuǎn)折,，中心句就在轉(zhuǎn)折后面出現(xiàn)。
TPO 22
Many animals live underground in the soil, not just little animals like worms but also bigger animals like mammals. Living underground has advantages, it protects animals from aboveground predators. However, the underground environment also presents challenges, and animals that live underground have developed physical adaptations to deal with them.

Step 1: 聽到 however
Step 2: 總結(jié) however 后面的內(nèi)容,，注意代詞them. The topic of this lecture is that animals that live underground have developed physical adaption to deal with challenges.

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Pattern 3： 問題型    在這一類中心句中,，以疑問詞開頭?？忌鷳?yīng)著重關(guān)注疑問詞（what, where, when, which, who, how）的出現(xiàn),。
TPO 8
Today, we’ll talk about how companies determine the initial price for their products. By that I mean, when they first introduce a product to the market. There are different approaches, and today we’ll discuss two of them.

Step 1: 疑問詞 how 出現(xiàn)
Step 2: 總結(jié)The topic of this lecture is how companies determine the initial price for their products.

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中心句是托福口語第6題聽力中最為重要的一部分,。只有捕捉到了中心句的信息,，并正確理解,，才能真正有效地處理講座中相關(guān)的例子或?qū)嶒?yàn)。

本文是由沈陽托福培訓(xùn)通途國際英語的Jim老師為大家整理的,，希望對(duì)同學(xué)們的托福備考有所幫助,，更多精彩內(nèi)容歡迎訪問通途國際英語托福頻道。

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