三、一段文章的中心思想常常由主題句表達。主題句常常位於段首或段尾處，間或出現在段落中間。同樣，一篇文章的中心思想也常常在開始或結尾段點出。因此在閱讀中，我們要特別注意文章的開頭或結尾。例四：
English is clearly an international language.It is spoken by pilots and airport control operators on all the airways of the world.Over 70 percent of the worlds radio programs are in English.
本段主題句為首句，其後的內容句均說明首句。例五：
Some students prefer a strict teacher who tells them exactly what to do.Others prefer to be left to work on their own.Still others like a democratic discussion type of class.No one teaching method can be devised to satisfy all students at the same time.
本段中心思想在結尾句得到體現，它是此段內容的結論。例六：
For adults a cold is not that serious.However，this is not the case for children.Cold symptoms in children may be signs of more serious diseases and should be given prompt medical attention.
本段主題句為第二句，因為在however後面才是作者真正的看法，並在下文中進一步作了說明。
然而，我們也常常發現，有的主題思想並非直接由一、二個句子表述，而是在文中間接暗示著。這就需要讀者根據文中細節進行概括與歸納，找出主題思想。例七：
Its no wonder that we have so many rejections for physical reasons in our Selective Service.Since October of 1948，some six million young men have been examined for military duty.Of these，more than a million were rejected as physically unfit for military service.To get two men today，the United States Army must call seven men.Of the five rejected three are turned down for physical reasons and two for mental problems.To get the 196thousand additional men we needed for Berlin，the government had to call up 750 thousand men.And the rejection rate is increasing each year.The reason for this problem is that we are underexercised as a nation.We look，instead of play.We ride，instead of walk.The way we live prevents us from being healthy.
本段中找不到某一句作為主題。根據文中的內容進行歸納，可找出主題思想，即：The militarys rejection rate for physical reason is increasing because this nations lack of exercise is leading to poor health.
在確定一篇文章的中心思想時，我們通常用快讀的方法，從頭至尾將全文瀏覽一遍，注意不要被個別詞、句難住而停下來。要從上下文的連貫意思上來理解全文，看看全文談論的是什麼主題、作者是從哪幾個方面來進行闡述的、有關這個主題我們了解了些什麼。這樣，就可以比較有把握地概括出中心思想了。
第一段和第三段提到了victims，第二段提到了入室行竊，但是第三段說明的共同問題是人們是否應擁有自衛武器來反對犯罪行為。因此只有選項C才能概括這三段所共同說明的問題，也就是此文的中心思想
English is clearly an international language.It is spoken by pilots and airport control operators on all the airways of the world.Over 70 percent of the worlds radio programs are in English.
本段主題句為首句，其後的內容句均說明首句。例五：
Some students prefer a strict teacher who tells them exactly what to do.Others prefer to be left to work on their own.Still others like a democratic discussion type of class.No one teaching method can be devised to satisfy all students at the same time.
本段中心思想在結尾句得到體現，它是此段內容的結論。例六：
For adults a cold is not that serious.However，this is not the case for children.Cold symptoms in children may be signs of more serious diseases and should be given prompt medical attention.
本段主題句為第二句，因為在however後面才是作者真正的看法，並在下文中進一步作了說明。
然而，我們也常常發現，有的主題思想並非直接由一、二個句子表述，而是在文中間接暗示著。這就需要讀者根據文中細節進行概括與歸納，找出主題思想。例七：
Its no wonder that we have so many rejections for physical reasons in our Selective Service.Since October of 1948，some six million young men have been examined for military duty.Of these，more than a million were rejected as physically unfit for military service.To get two men today，the United States Army must call seven men.Of the five rejected three are turned down for physical reasons and two for mental problems.To get the 196thousand additional men we needed for Berlin，the government had to call up 750 thousand men.And the rejection rate is increasing each year.The reason for this problem is that we are underexercised as a nation.We look，instead of play.We ride，instead of walk.The way we live prevents us from being healthy.
本段中找不到某一句作為主題。根據文中的內容進行歸納，可找出主題思想，即：The militarys rejection rate for physical reason is increasing because this nations lack of exercise is leading to poor health.
在確定一篇文章的中心思想時，我們通常用快讀的方法，從頭至尾將全文瀏覽一遍，注意不要被個別詞、句難住而停下來。要從上下文的連貫意思上來理解全文，看看全文談論的是什麼主題、作者是從哪幾個方面來進行闡述的、有關這個主題我們了解了些什麼。這樣，就可以比較有把握地概括出中心思想了。
第一段和第三段提到了victims，第二段提到了入室行竊，但是第三段說明的共同問題是人們是否應擁有自衛武器來反對犯罪行為。因此只有選項C才能概括這三段所共同說明的問題，也就是此文的中心思想
收藏