（2）主題句在段尾。
雖然英語(yǔ)段落的主體旬在大多數(shù)情況下都置于段落之首，但也有時(shí)出現(xiàn)在段落之末。因此，如果第一句話不是概括性的或綜合性的話，快速讀一讀段落的最后一個(gè)句子，看看它是否具備主題句的特征：如果它具備主題句的特征，短文的主題思想就很容易確定了。
一般說(shuō)來(lái)，當(dāng)一種觀點(diǎn)不易向人解釋清楚，或不易被人接受時(shí)，主題句便會(huì)到段落的末尾才出現(xiàn)。當(dāng)作者想要說(shuō)服讀者聽(tīng)信其言時(shí)，一般采用此格式組織句子。通常似乎有這樣一種傾向：人們只對(duì)自己了解的新思想新觀點(diǎn)才考慮接受它。換句話說(shuō)，只有在聽(tīng)了對(duì)某一新思想新觀點(diǎn)的細(xì)節(jié)解釋說(shuō)明之后，人們才可能接受它。有些文章以列舉事實(shí)依據(jù)開(kāi)頭，通過(guò)論證，最后講出作者自己所闡述的核心論點(diǎn)。
在做閱讀理解試題時(shí)，要充分利用引出結(jié)論的信號(hào)詞，如clearly，plainly；so，therefore，thus，consequently；In conclusion，in short等來(lái)確定主題句的位置在段尾。當(dāng)無(wú)明顯的此類信號(hào)同時(shí)，可添加一個(gè)引出結(jié)論的信號(hào)詞以確定主題句是否是段落的最后一句話。
例如：
Americans might be embarrassed because their Japanese friends are so formal with them. Japanese might feel insulted because American acquaintances greet them casually. Still, the forms of greeting in both countries only show respect for others. It just happens that Americans and Japanese have a different way of looking at human relationships and thus have a different way of showing respect.
This passage mainly tells us_________.
A. how Americans show respect to others
B. how Japanese show respect to their American acquaintances
C. Americans and Japanese have different ways of showing respect
D. Japanese are not satisfied with American casual behavior
這一篇短文前幾句只講述了具體情況，均不具備主題句的特征，只有最后一句話是概括性的、總結(jié)性的，因此本段的最后一句是主題句，故正確答案是D.
請(qǐng)閱讀下列短文并找出主題句
Since plants give off this valuable gas, they are doing other living things a great service, because, since all living things have to breathe, there could easily be a short-age of oxygen in the atmosphere. Green plants, in this way; help to maintain the balance of gases in the atmosphere.
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. Lightning and thunder are common enough storm indicators but few People realize that the brightness of the lightning is not nearly as important as the number of lightning flashes. The signs of an oncoming storm are many, and a person's life may depend on his ability to interpret them.
Doctors are of the opinion that most people cannot live beyond 100 years, but a growing number of scientists believe that the aging process can be controlled. There are more than 12 000 Americans over l00 years old, and their numbers are increasing each year. Dr. James Langley of Chicago claims that, theoretically and under ideal conditions，animals，Including man，can live six times longer than their normal period of growth．A person's period of growth lasts about 25 years. If Dr．Langley's theory is accurate, future generations can expect a life span of 150 years.．
上面三篇短文的最后一句都是主題句。
有時(shí)侯，主題句會(huì)在段落的開(kāi)頭和結(jié)尾兩個(gè)位置上先后出現(xiàn)，形成前呼后應(yīng)的格局。兩個(gè)主題句表明同一內(nèi)容，但表達(dá)的作用不盡相同，不但強(qiáng)調(diào)了中心思想，而且顯得更靈活多變。這兩個(gè)句子并非簡(jiǎn)單的重復(fù)，后一個(gè)主題句或者對(duì)前一個(gè)主題句作強(qiáng)調(diào)，或?qū)η耙恢黝}句點(diǎn)出的中心思想再作評(píng)點(diǎn)，或歸納前一主題句要點(diǎn)之后再行概括，或把前一主題句提出的問(wèn)題加以引申讓讀者去思考?？傊?，前后的句子頗有邏輯上的聯(lián)系，使中心思想表達(dá)的更嚴(yán)整。
Another American, Henry Ford, developed the idea of assembly line. Before Ford introduced the assembly line, each car was built by hand. Such a process was, of course, very slow. As a result, automobiles were so expensive that only rich people could afford them. Ford proposed a system in which each worker would have a special job to do. One person, for example, would make only a portion of the wheels. Another would insert the bolts that held the wheels to the car. Each worker needed to learn only one or two routine tasks.
（3）主題句在段中。
有時(shí)段落是先介紹背景和細(xì)節(jié)，接著用一句綜合或概括性的話概括前面所說(shuō)的內(nèi)容或事例，然后再圍繞主題展開(kāi)對(duì)有關(guān)問(wèn)題的深入討論。這種文章的主題句往往會(huì)在段落中間出現(xiàn)，但不是就在正中間。
例如：
In spite of the fact that cars from Germany and Japan are flooding the American market, Ford, General Motors, and Chrysler are employing more workers than ever before. The flood of cheaper foreign cars has not cost American autoworkers their jobs as some experts predicted. Ford operates as far as Asia, and General Motors is considered Australia's biggest employer. Yet General Motors has its huge American work force and employs hundreds of people every day to meet the needs of an insatiable society.
What is the main idea of the passage?
A. The foreign cars have not taken away the jobs of American autoworkers.
B. General Motors is one of the largest car producers.
C. Ford operates not only in the USA, but also in Asia.
D. The flood of cheaper foreign cars is terrible for American autoworkers.
上面這段話的主題句位于本段的中間：The flood of cheaper foreign cars has not cost American autoworkers their jobs as some experts expected. 據(jù)此，此題的正確答案應(yīng)為 A.
請(qǐng)閱讀下列短文并找出主題句
No. 1
Despite the fact that cars from Germany and Japan are flooding the American Market. Ford, General Motors and Chrysler are hiring more workers than ever before. The flood of cheaper foreign cars has not cost American autoworkers their jobs as some experts predicted. Ford operates as far as Asia, and General Motors is considered Australia's biggest employer. Yet GM has its huge American work force and hires hundreds of people every day to meet the needs of an insatiable society.
No.2
What does the doctor need to know about his patient? In the initial interview the doctor needs to know as much as possible about him, as it relates to his ailments. This is the medical history, and although informal and brief, it is the first step at arriving at a diagnosis. The sooner a correct diagnosis, the quicker he can get effective therapy
No.3
Just as I settle down to read or watch television, he demands that I play with him. If I get a telephone call, he screams in the background or knocks something over. I always have to hang up to find out what's wrong with him. Baby-sitting with my little brother is no fun. He refuses. to let me eat a snack in peace. Usually he wants half of whatever I have to eat. Then, when he finally grows tired, it takes about an hour for him to fall asleep.
Baby-sitting with my little brother is no fun
上面三篇文章的主題句分別為：
No.1 The flood of cheaper foreign cars has not cost American autoworkers their jobs as some experts predicted.
No2 In the initial interview the doctor needs to know as much as possible about him, as it relates to his ailments.
No3 Baby-sitting with my little brother is no fun.
雖然英語(yǔ)段落的主體旬在大多數(shù)情況下都置于段落之首，但也有時(shí)出現(xiàn)在段落之末。因此，如果第一句話不是概括性的或綜合性的話，快速讀一讀段落的最后一個(gè)句子，看看它是否具備主題句的特征：如果它具備主題句的特征，短文的主題思想就很容易確定了。
一般說(shuō)來(lái)，當(dāng)一種觀點(diǎn)不易向人解釋清楚，或不易被人接受時(shí)，主題句便會(huì)到段落的末尾才出現(xiàn)。當(dāng)作者想要說(shuō)服讀者聽(tīng)信其言時(shí)，一般采用此格式組織句子。通常似乎有這樣一種傾向：人們只對(duì)自己了解的新思想新觀點(diǎn)才考慮接受它。換句話說(shuō)，只有在聽(tīng)了對(duì)某一新思想新觀點(diǎn)的細(xì)節(jié)解釋說(shuō)明之后，人們才可能接受它。有些文章以列舉事實(shí)依據(jù)開(kāi)頭，通過(guò)論證，最后講出作者自己所闡述的核心論點(diǎn)。
在做閱讀理解試題時(shí)，要充分利用引出結(jié)論的信號(hào)詞，如clearly，plainly；so，therefore，thus，consequently；In conclusion，in short等來(lái)確定主題句的位置在段尾。當(dāng)無(wú)明顯的此類信號(hào)同時(shí)，可添加一個(gè)引出結(jié)論的信號(hào)詞以確定主題句是否是段落的最后一句話。
例如：
Americans might be embarrassed because their Japanese friends are so formal with them. Japanese might feel insulted because American acquaintances greet them casually. Still, the forms of greeting in both countries only show respect for others. It just happens that Americans and Japanese have a different way of looking at human relationships and thus have a different way of showing respect.
This passage mainly tells us_________.
A. how Americans show respect to others
B. how Japanese show respect to their American acquaintances
C. Americans and Japanese have different ways of showing respect
D. Japanese are not satisfied with American casual behavior
這一篇短文前幾句只講述了具體情況，均不具備主題句的特征，只有最后一句話是概括性的、總結(jié)性的，因此本段的最后一句是主題句，故正確答案是D.
請(qǐng)閱讀下列短文并找出主題句
Since plants give off this valuable gas, they are doing other living things a great service, because, since all living things have to breathe, there could easily be a short-age of oxygen in the atmosphere. Green plants, in this way; help to maintain the balance of gases in the atmosphere.
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. Lightning and thunder are common enough storm indicators but few People realize that the brightness of the lightning is not nearly as important as the number of lightning flashes. The signs of an oncoming storm are many, and a person's life may depend on his ability to interpret them.
Doctors are of the opinion that most people cannot live beyond 100 years, but a growing number of scientists believe that the aging process can be controlled. There are more than 12 000 Americans over l00 years old, and their numbers are increasing each year. Dr. James Langley of Chicago claims that, theoretically and under ideal conditions，animals，Including man，can live six times longer than their normal period of growth．A person's period of growth lasts about 25 years. If Dr．Langley's theory is accurate, future generations can expect a life span of 150 years.．
上面三篇短文的最后一句都是主題句。
有時(shí)侯，主題句會(huì)在段落的開(kāi)頭和結(jié)尾兩個(gè)位置上先后出現(xiàn)，形成前呼后應(yīng)的格局。兩個(gè)主題句表明同一內(nèi)容，但表達(dá)的作用不盡相同，不但強(qiáng)調(diào)了中心思想，而且顯得更靈活多變。這兩個(gè)句子并非簡(jiǎn)單的重復(fù)，后一個(gè)主題句或者對(duì)前一個(gè)主題句作強(qiáng)調(diào)，或?qū)η耙恢黝}句點(diǎn)出的中心思想再作評(píng)點(diǎn)，或歸納前一主題句要點(diǎn)之后再行概括，或把前一主題句提出的問(wèn)題加以引申讓讀者去思考?？傊?，前后的句子頗有邏輯上的聯(lián)系，使中心思想表達(dá)的更嚴(yán)整。
Another American, Henry Ford, developed the idea of assembly line. Before Ford introduced the assembly line, each car was built by hand. Such a process was, of course, very slow. As a result, automobiles were so expensive that only rich people could afford them. Ford proposed a system in which each worker would have a special job to do. One person, for example, would make only a portion of the wheels. Another would insert the bolts that held the wheels to the car. Each worker needed to learn only one or two routine tasks.
（3）主題句在段中。
有時(shí)段落是先介紹背景和細(xì)節(jié)，接著用一句綜合或概括性的話概括前面所說(shuō)的內(nèi)容或事例，然后再圍繞主題展開(kāi)對(duì)有關(guān)問(wèn)題的深入討論。這種文章的主題句往往會(huì)在段落中間出現(xiàn)，但不是就在正中間。
例如：
In spite of the fact that cars from Germany and Japan are flooding the American market, Ford, General Motors, and Chrysler are employing more workers than ever before. The flood of cheaper foreign cars has not cost American autoworkers their jobs as some experts predicted. Ford operates as far as Asia, and General Motors is considered Australia's biggest employer. Yet General Motors has its huge American work force and employs hundreds of people every day to meet the needs of an insatiable society.
What is the main idea of the passage?
A. The foreign cars have not taken away the jobs of American autoworkers.
B. General Motors is one of the largest car producers.
C. Ford operates not only in the USA, but also in Asia.
D. The flood of cheaper foreign cars is terrible for American autoworkers.
上面這段話的主題句位于本段的中間：The flood of cheaper foreign cars has not cost American autoworkers their jobs as some experts expected. 據(jù)此，此題的正確答案應(yīng)為 A.
請(qǐng)閱讀下列短文并找出主題句
No. 1
Despite the fact that cars from Germany and Japan are flooding the American Market. Ford, General Motors and Chrysler are hiring more workers than ever before. The flood of cheaper foreign cars has not cost American autoworkers their jobs as some experts predicted. Ford operates as far as Asia, and General Motors is considered Australia's biggest employer. Yet GM has its huge American work force and hires hundreds of people every day to meet the needs of an insatiable society.
No.2
What does the doctor need to know about his patient? In the initial interview the doctor needs to know as much as possible about him, as it relates to his ailments. This is the medical history, and although informal and brief, it is the first step at arriving at a diagnosis. The sooner a correct diagnosis, the quicker he can get effective therapy
No.3
Just as I settle down to read or watch television, he demands that I play with him. If I get a telephone call, he screams in the background or knocks something over. I always have to hang up to find out what's wrong with him. Baby-sitting with my little brother is no fun. He refuses. to let me eat a snack in peace. Usually he wants half of whatever I have to eat. Then, when he finally grows tired, it takes about an hour for him to fall asleep.
Baby-sitting with my little brother is no fun
上面三篇文章的主題句分別為：
No.1 The flood of cheaper foreign cars has not cost American autoworkers their jobs as some experts predicted.
No2 In the initial interview the doctor needs to know as much as possible about him, as it relates to his ailments.
No3 Baby-sitting with my little brother is no fun.