在上一講中，我們介紹了有效地找出段落主題句的重要性。那么具體怎樣操作呢?

　　我們先來(lái)看一下主題句的特點(diǎn)：

　　 內(nèi)容：一般比較抽象概括

　　 位置：一般出現(xiàn)在兩個(gè)位置的可能性最大：每段話的開(kāi)頭和結(jié)尾。

　　通常而言，主題句就是一段話的第一句。后面的句子一般為支持性的細(xì)節(jié)，以解釋、發(fā)展或是支持主題句所表現(xiàn)的主要論點(diǎn)。

　　The recent string of corporate scandals provided a rude awakening to the importance of these internal checks. In the case of WorldCom, it was internal auditor Cynthia Cooper who blew the whistle on the company for inflating profits by $3.8 billion. She didnt intend to be a hero, she said to Time magazine when it named her one of its Persons of the Year. She was just doing her job.

　　Chief constables had disapproved of the use of league tables. They complained that they provoked unfair criticism because they did not compare like with like. Mr. Denham said the graphs were easier to comprehend than tables. As people get familiar with this type of graphical presentation they will realize it contains a lot of data that can be understood after an initial glance. The spidergrams are based on five indicators: reducing crime, investigation crime, public safety, deployment of resources and the view of a focus group of local citizens.

　　有時(shí)候主題句也會(huì)出現(xiàn)在整段話的最后。這樣的結(jié)構(gòu)安排，通常出現(xiàn)在一個(gè)討論困難的、不為大眾所接受的話題或者文章的主要目的是為了說(shuō)服讀者接受某種結(jié)論的段落中。因?yàn)橄劝训览碚f(shuō)清楚，那么讀者就會(huì)比較容易接受新的觀點(diǎn)和看法。

　　If the wind becomes gusty after a period of calm, you should seek shelter. The sky needs careful watching too. Gradual darkening and boiling clouds should quicken your pace. Lightening and thunder are common enough storm indicators, but few people realize that the brightness of the lightening is not nearly as important as the number of lightning flashes. The signs of an oncoming storm are many, and a persons life may depend on his ability to interpret them,

　　主題句也可能在段落當(dāng)中:

　　From one perspective, this huge customer base represents a hair-raising social liability. Surgical and hospital costs fro regular heart transplants run as high as $500,000. these procedures havent burdened the medical system so far but only because the supply of transplantable hearts has been limited to about 2000 a year. Abiomed plans to price its heart between $75000 and $10000 initially, and with volume production, the price could fall as low as $10000. However, even at the lower price, artificial hearts are an issue that will lead into moral quicksands, says medical ethicist David Steinberg of the Lahey Clinic in Burlington, Mass. What happens, Steinberg muses, if heart replacement and intervention directly and visibly linked to who will live and who will diebecomes available only to those who can afford it?

　　 標(biāo)志詞：有些詞匯對(duì)于我們正確判斷一段話的主題是至關(guān)重要的。在雅思考試的文章中，主要有兩類：強(qiáng)轉(zhuǎn)折性的詞、表示重要性結(jié)構(gòu)的詞和表示人物觀點(diǎn)結(jié)論性的詞。

　　那么這些標(biāo)志詞的具體特征和作用如何呢，且看下回分解。

　　在上一講中，我們介紹了有效地找出段落主題句的重要性。那么具體怎樣操作呢?

　　我們先來(lái)看一下主題句的特點(diǎn)：

　　 內(nèi)容：一般比較抽象概括

　　 位置：一般出現(xiàn)在兩個(gè)位置的可能性最大：每段話的開(kāi)頭和結(jié)尾。

　　通常而言，主題句就是一段話的第一句。后面的句子一般為支持性的細(xì)節(jié)，以解釋、發(fā)展或是支持主題句所表現(xiàn)的主要論點(diǎn)。

　　The recent string of corporate scandals provided a rude awakening to the importance of these internal checks. In the case of WorldCom, it was internal auditor Cynthia Cooper who blew the whistle on the company for inflating profits by $3.8 billion. She didnt intend to be a hero, she said to Time magazine when it named her one of its Persons of the Year. She was just doing her job.

　　Chief constables had disapproved of the use of league tables. They complained that they provoked unfair criticism because they did not compare like with like. Mr. Denham said the graphs were easier to comprehend than tables. As people get familiar with this type of graphical presentation they will realize it contains a lot of data that can be understood after an initial glance. The spidergrams are based on five indicators: reducing crime, investigation crime, public safety, deployment of resources and the view of a focus group of local citizens.

　　有時(shí)候主題句也會(huì)出現(xiàn)在整段話的最后。這樣的結(jié)構(gòu)安排，通常出現(xiàn)在一個(gè)討論困難的、不為大眾所接受的話題或者文章的主要目的是為了說(shuō)服讀者接受某種結(jié)論的段落中。因?yàn)橄劝训览碚f(shuō)清楚，那么讀者就會(huì)比較容易接受新的觀點(diǎn)和看法。

　　If the wind becomes gusty after a period of calm, you should seek shelter. The sky needs careful watching too. Gradual darkening and boiling clouds should quicken your pace. Lightening and thunder are common enough storm indicators, but few people realize that the brightness of the lightening is not nearly as important as the number of lightning flashes. The signs of an oncoming storm are many, and a persons life may depend on his ability to interpret them,

　　主題句也可能在段落當(dāng)中:

　　From one perspective, this huge customer base represents a hair-raising social liability. Surgical and hospital costs fro regular heart transplants run as high as $500,000. these procedures havent burdened the medical system so far but only because the supply of transplantable hearts has been limited to about 2000 a year. Abiomed plans to price its heart between $75000 and $10000 initially, and with volume production, the price could fall as low as $10000. However, even at the lower price, artificial hearts are an issue that will lead into moral quicksands, says medical ethicist David Steinberg of the Lahey Clinic in Burlington, Mass. What happens, Steinberg muses, if heart replacement and intervention directly and visibly linked to who will live and who will diebecomes available only to those who can afford it?

　　 標(biāo)志詞：有些詞匯對(duì)于我們正確判斷一段話的主題是至關(guān)重要的。在雅思考試的文章中，主要有兩類：強(qiáng)轉(zhuǎn)折性的詞、表示重要性結(jié)構(gòu)的詞和表示人物觀點(diǎn)結(jié)論性的詞。

　　那么這些標(biāo)志詞的具體特征和作用如何呢，且看下回分解。