一、主題句的前三種特性：
1、主題句必定是以判斷句式出現(xiàn)
2、高度概括（不出現(xiàn)具體時(shí)間、地點(diǎn)、人物，若有則skimming時(shí)不看）
3、有表示重要性的字眼
4、置于文章或段落中間的、有表示強(qiáng)轉(zhuǎn)折、強(qiáng)對(duì)比、因果概括的邏輯關(guān)鍵詞。
強(qiáng)轉(zhuǎn)折、強(qiáng)對(duì)比詞匯往往標(biāo)志著考點(diǎn)所在，或幫助我們預(yù)測(cè)考點(diǎn)。
（1） 強(qiáng)轉(zhuǎn)折詞匯：
第一組：but, however, yet, nevertheless, nonetheless, instead, on the other hand,
A but B：重點(diǎn)在于B
以上一系列詞匯作為轉(zhuǎn)折詞時(shí)，句子的關(guān)鍵是跟在這些轉(zhuǎn)折詞后面的部分。
第二組：although, though, in spite of, despite, while, whereas, whilst, notwithstanding, albeit
although A,B：重點(diǎn)在于B而不是緊跟在although后面的詞
以上一組轉(zhuǎn)折詞都具有該特點(diǎn)
（2） 強(qiáng)對(duì)比
常用詞unlike, not so much…as, in fact, actually, as a matter of fact
情況一：男女性別對(duì)比
Recent polls indicate that American women are, in fact, more stressed out. (筆譯 p119)
American women：women出現(xiàn)表示性別對(duì)比
強(qiáng)對(duì)比詞：in fact
情況二：時(shí)間對(duì)比（用until或時(shí)態(tài)表現(xiàn)）
But many more are escaping the country.
are escaping：進(jìn)行時(shí)態(tài)表現(xiàn)時(shí)間上的強(qiáng)烈對(duì)比
完成時(shí)態(tài)也常常暗示著時(shí)間對(duì)比
情況三：新老觀點(diǎn)對(duì)比
老觀點(diǎn)常用詞：traditional 傳統(tǒng)上的conventional 慣例上的
新觀點(diǎn)常用詞：radical偏激的 revolutionary 具有革命性質(zhì)的 adventuresome 冒險(xiǎn)的、偏激的
情況四：專家觀點(diǎn)vs.大眾觀點(diǎn)
注：作者會(huì)支持專家觀點(diǎn)
The public still assumes that dietitian’s main job is advising people how to lose weight. But this is only a very small part of their work. (p95)
The public大眾：一旦有大眾觀點(diǎn)出現(xiàn)，馬上受到批判
（3） 因果概括
第一種現(xiàn)象：詞后直接加原因
詞有：
because (of), since, as, for, on the ground(s) of / that,
result from ,originate from , arise from , derive from ,stem from
be traced to, be attributed to
第二種現(xiàn)象：詞后直接加結(jié)果
這些詞有：
therefore, consequently
give rise to ,give birth to
account for, hence, thus
第三種現(xiàn)象：概括結(jié)構(gòu)
主語(yǔ)往往是：this, that, it , all these
謂語(yǔ)動(dòng)詞往往是：is, means, shows, suggests
1、主題句必定是以判斷句式出現(xiàn)
2、高度概括（不出現(xiàn)具體時(shí)間、地點(diǎn)、人物，若有則skimming時(shí)不看）
3、有表示重要性的字眼
4、置于文章或段落中間的、有表示強(qiáng)轉(zhuǎn)折、強(qiáng)對(duì)比、因果概括的邏輯關(guān)鍵詞。
強(qiáng)轉(zhuǎn)折、強(qiáng)對(duì)比詞匯往往標(biāo)志著考點(diǎn)所在，或幫助我們預(yù)測(cè)考點(diǎn)。
（1） 強(qiáng)轉(zhuǎn)折詞匯：
第一組：but, however, yet, nevertheless, nonetheless, instead, on the other hand,
A but B：重點(diǎn)在于B
以上一系列詞匯作為轉(zhuǎn)折詞時(shí)，句子的關(guān)鍵是跟在這些轉(zhuǎn)折詞后面的部分。
第二組：although, though, in spite of, despite, while, whereas, whilst, notwithstanding, albeit
although A,B：重點(diǎn)在于B而不是緊跟在although后面的詞
以上一組轉(zhuǎn)折詞都具有該特點(diǎn)
（2） 強(qiáng)對(duì)比
常用詞unlike, not so much…as, in fact, actually, as a matter of fact
情況一：男女性別對(duì)比
Recent polls indicate that American women are, in fact, more stressed out. (筆譯 p119)
American women：women出現(xiàn)表示性別對(duì)比
強(qiáng)對(duì)比詞：in fact
情況二：時(shí)間對(duì)比（用until或時(shí)態(tài)表現(xiàn)）
But many more are escaping the country.
are escaping：進(jìn)行時(shí)態(tài)表現(xiàn)時(shí)間上的強(qiáng)烈對(duì)比
完成時(shí)態(tài)也常常暗示著時(shí)間對(duì)比
情況三：新老觀點(diǎn)對(duì)比
老觀點(diǎn)常用詞：traditional 傳統(tǒng)上的conventional 慣例上的
新觀點(diǎn)常用詞：radical偏激的 revolutionary 具有革命性質(zhì)的 adventuresome 冒險(xiǎn)的、偏激的
情況四：專家觀點(diǎn)vs.大眾觀點(diǎn)
注：作者會(huì)支持專家觀點(diǎn)
The public still assumes that dietitian’s main job is advising people how to lose weight. But this is only a very small part of their work. (p95)
The public大眾：一旦有大眾觀點(diǎn)出現(xiàn)，馬上受到批判
（3） 因果概括
第一種現(xiàn)象：詞后直接加原因
詞有：
because (of), since, as, for, on the ground(s) of / that,
result from ,originate from , arise from , derive from ,stem from
be traced to, be attributed to
第二種現(xiàn)象：詞后直接加結(jié)果
這些詞有：
therefore, consequently
give rise to ,give birth to
account for, hence, thus
第三種現(xiàn)象：概括結(jié)構(gòu)
主語(yǔ)往往是：this, that, it , all these
謂語(yǔ)動(dòng)詞往往是：is, means, shows, suggests