英语阅读理解主旨大意题的解题技巧
高考阅读理解主旨大意题的考查旨在考查学生对一篇文章或一个段落的深层次理解和把握其主旨大意的能力。一般针对某一语段或某一语篇的主题标题或目的设题。这类题目考查的范围是：基本论点、文章标题、主题或段落大意等。它要求考生在理解全文的基础上能较好地运用概括、判断、归纳、推理等逻辑思维方法，对文章进行高度概括或总结，要求学生通过快速阅读获取语篇中心思想的能力，辨别主要信息和次要信息的能力，以及要求学生要具有上下文逻辑的概括能力。
1、主旨大意题题干常见的问句形式
1）主旨句设问类型
What is the main idea of this passage？
What does the passage mainly talk about？
We can conclude / learn from the passage that ……
2）最佳标题选择类型
The best title for this passage is ……
3）作者主旨意图类型
What does the writer want to tell us？
Which can express the purpose of the writer according to
the passage？
在高考阅读理解中，主旨大意题的考查占有十分重要的位置。主题思想是文章的核心，能否抓住文章的主题思想，是考生阅读能力最主要的体现。高考中阅读理解的测试，自然也以此作为检验考生阅读理解能力最重要的标准。下面就这一题型给出一些思路、做题步骤及技巧：
一.划分文章结构。
英语的文章讲究使用主题段和主题句。主题段通常在文章的开头或结尾，简要概括文章的中心思想。段与段之间常用词语连接，承上启下，使文章行文连贯，逻辑严密。为突出主题，作者可能采用不同的写作手法来组织文章，通过举例、比较、类比等手法来透彻阐明主题观点。因此根据文章理顺文章的脉络，理解段落层次之间的关系，弄清作者的写作方法，理清全文结构安排，了解文章的重心，就能概括出文章的中心。要准确地抓住文章的主题思想，就要十分留意文章的开头和结尾也就是文章的中心段落，要抓住文中具有概括性的信息，从上下文连贯的意思来理解全文，看作者主要谈的是什么，透过文字叙述的过程来归纳主题，再从选择项中找出最符合表达主题思想的选项。
基于结构划分主旨大意题一定要注意文章的首尾两段。如果首尾两段的主旨表达是一致的，那么文章的主旨便是两段重复表明的语句内容表达。找出选项中与归纳的主旨表达
重复最多的选项即为最佳答案。如果首尾两段的主旨表达不一致，则需要观察文章的段落篇幅量是倾向于首段或是尾段，从而确定主旨段落。在此过程中，观察篇幅量只需跳读文章段落的首句尾句即可，无需细读段落内容，以节省时间。如果文章只有一段，则注意文章的首两句及尾句，然后用以上的方法确定主旨句。
二.寻找主题句
在第一步通过文章结构划分找出文章中心段落之后，最重要的一步也就是找出中心段落的主题句。主题句是段落的核心它往往是一个具有很强代表性和概括性的句子。由于文章体裁和表现手法不同，不同的文体其主题句出现的位置不同，有的主题句在段落的开头，有的主题句在段落的结尾。有的主题句前后呼应。有时首段出现疑问句时，对该问题的解答就是文章的主旨。有时文章中根本没有明显的主题句，需要学生归纳总结才可得出主题句。
主题句的特点是：意思比较笼统、概括，不涉及具体事实；句子结构比较简单；段落中其他句子都是用来解释、支持和发展主题句所表达的中心思想。英语文章的主题句一般主要有三种位置：
1.位于开头
不少文章一开头便展示出文章的主题，特别是新闻报道，开头的导语便是报道的主题，然后再叙述事件的发生、
发展和结局。还有用演义法写的文章，往往从概述开始，然后提供例证、罗列细节、详细阐述。因此其主题句一般是文章的第一句或文章的第一段。应当注意的是，大家在捕捉文章的主题句时，不能简单套用公式，应当对包含主题句的段落进行适当的分析、综合。
2.位于结尾
用归纳法撰写的文章，其结构是表述细节的句子放在前面，概述性句子放在后面，并以此结尾。所以结尾的句子起着总结归纳、画龙点睛的作用，它是该文段的主题句。有时候作者要说服读者接受某种思想，他通常先摆事实，讲道理，然后再点出问题的中心。在这种情况下，主题句也在结尾。
3.位于中间
当主题句位于文段中间时，开段的句子往往表述此文段要解答问题，而主题则由随之引出的句子来表达。此外，为了阐明主题的思想，在主题句之后，仍有一些句子陈述细节，或作出合乎逻辑的引申。这类文段一般包括三个层次：引题――主题――解释（或提问――回答――解释）。
同时还要认真关注那些经常出现的单词、词组！认真判断哪个词或词组最具有概括性！
三.推敲选项，排除干扰项。
如何选择正确选项？
1. 根据第一、二步找出的主题句，找出其关键词，与四
个选项进行对比，选出最合适的答案。
2. 正确选项一般不含有过分肯定或过分否定等绝对性太强的词汇。
3. 正确选项应能概括全文。
题干干扰项的特点：
1. 概括不准确。概括范围过大或过小。
2. 属于无关信息。在文章中找不到所依据的信息。
（陕西省洋县中学）
（英语）英语阅读理解练习题20篇及解析 一、高中英语阅读理解 1．阅读理解 Many people have long dreamed of being able to fly around as simply as riding a bicycle. Yet the safety and strength of a flying bike was always a big problem. Over the past 10 years, developments in technology have moved the dream of personal flying vehicles closer to reality. Now, two groups of inventors say such vehicles may be available soon. The British company Malloy Aeronautics has developed a prototype (原型) of its flying bicycle. Grant Stapleton, marketing sales director of Malloy Aeronautics, says the Hoverbike is able to get in and out of small spaces very quickly. It can be moved across continents very quickly because it can be folded and packed, he adds. Mr. Stapleton says safety was the company's main concern. He says the designers solved the safety issue by using overlapping rotors ( 交叠式旋翼 )to power the vehicle. The company is testing a full-size prototype of the Hoverbike, which will most likely be used first by the police and emergency rescue teams. In New Zealand, the Martin Aircraft Company is also testing a full-size prototype of its personal flying device, called the Jetpack. It can fly for more than 30 minutes, up to 1,000 meters high and reach a speed of 74 kilometers per hour. Peter Coker is the CEO of Martin Aircraft Company. He said the Jetpack “is built around safety from the start. In his words, reliability is the most important element of it. We have safety built into the actual structure itself, very similar to a Formula One racing car.” The Jetpack uses a gasoline-powered engine that produces two powerful jet streams. Mr. Coker says it also has a parachute (降落伞) that can be used should there be an emergency. “It starts to work at very low altitude and actually saves both the aircraft and the pilot,” he adds. Mr. Coker says the Jetpack will be ready for sale soon. （1）We can learn from the passage that the Hoverbike . A. can hardly get in and out of small spaces quickly B. can fly for over 30 minutes, up to 1,000 meters high C. has been used by the police and emergency rescue teams D. can be transported quickly after being folded and packed （2）The writer uses the example of For One racing car to show that . A. the Jetpack is very safe and reliable B. the engine of the Jetpack is powerful C. the actual structure of the Jetpack is unique D. the Jetpack can reach a great speed and height （3）The underlined word “it” in the last paragraph refer s to. A. the jet stream B. the engine C. the Jetpack D. the parachute （4）What is the authors main purpose of writing the passage? A. To describe the problems of inventing flying vehicles. B. To introduce the latest development of flying vehicles. C. To show the differences between two flying vehicles. D. To advertise the two personal
中考英语阅读主旨大意题解题技巧 命题形式主要有： 常见的主旨大意题的考查形式： The text is mainly about ____. The main idea/The general idea/The main purpose is ______. What’s the main point the writer is trying to make in the last/xx paragraph? What would be the best title /headline for the text? This article mainly tells about the story of ____. What is the topic of the text? The subject discussed in this text is ____. What does the second paragraph discuss? The paragraph (passage) deals with _____. What is mainly discussed in the text? 解题技巧。 1.先看问题，看是否有和主旨相关的题目，了解题目类别和提问方式。 2.再看文章首尾和各段开头，找出主题句或通过浏览全文，抓住关键字眼，把握主旨。 3.以掌握主旨为前提，处理推断作者语气或意图等其他深层次问题。 4、这类题目需要对文章有整体性的把握，建议最后做 一、文章或者某段落的主旨大意——主题句定位法：通过分析篇章结构，找出每一小 段的主题句，然后通过寻找共同点，找出整个文章的主题句。 主题呈现的方式： 1．开门见山式：主题句出现在文首。 In modern society there is a great deal of argument about competition. Some value it highly, believing that it is responsible for social progress and prosperity. Others say that competition is bad，that it sets one person against another; that it leads to unfriendly relationship between people. 题目：What does this passage mainly talk about？ https://www.doczj.com/doc/9a7517812.html,petition helps to set up self-respect. B.Opinions about competition are different among people. https://www.doczj.com/doc/9a7517812.html,petition is harmful to personal quality development. D. Failures are necessary experience in competition. 2．藏头露尾式：主题句出现在文尾 On the Internet, we can read news at home and abroad and get as much information as we can. We often send e-mails or make telephone calls to our families as well as to our friends by Internet. What’s more, we can go to school on the net, r ead a lot of books and even teach ourselves foreign languages. We also enjoy music, watch ball matches on the net and play computer games. With the help of the net, we can do shopping even without leaving our homes. The Internet is playing a more and more important part in our daily life. 题目：What’s the main idea of the passage？ A. Keep away from the Internet. B. Surf the net. C. The Internet is playing an important part in our daily life. D. We can entertain ourselves on the Internet. 3．首尾呼应式：在有些文章中，为了突出主题，作者在文章开头提出主题，接着进行
高考英语阅读:主旨大意题的解题技巧 一、主旨大意题的命题形式 主旨大意题旨在考查考生把握全文主题和理解中心思想的能力，亦即考查考生的归纳概括能力。这类试题包括要求考生选出短文的标题(title, headline)、短文或段落的主题(subject)、中心思想(main idea)、作者的写作目的(purpose或为传递信息、或为愉悦读者、或为阐述某一道理)等。这类题的设问方式主要有： (1)The subject of the passage/paragraph is ______. (2)The main idea of the passage/paragraph is ______. (3)The text is mainly about ______. (4)The passage mainly centers on ______. (5)The passage mainly tells about ______. (6)What is the subject discussed in the text? (7)What is the main idea of this passage? (8)What is the passage mainly about? (9)What does the second paragraph mainly discuss? (10)What is the main point the writer is trying to make in the last paragraph? (11)Which of the following is the best title for the passage? (12)Which title best gives the idea of the passage? (13)What would be the best title for the text? (14)What might be the most suitable title for the passage? (15)The best headlines for this newspaper article would be______ (16)The main purpose of announcing the above events is to give information about ______. (17)The writer's purpose in writing this story is ______. (18)What is the author's main purpose? (19)What does the writer really want to tell us in this passage? (20)The writer wrote the story in order to______. (21)What is the advice given in the text / passage / article? 二、寻找主题句的方法 正确的解答这类题目的关键是准确地找出文章的主题句。一般来说，一篇文章常常会围绕着一个中心思想或一个主要话题展开，而这个话题又常常通过一个能比较全面地覆盖或概括文章意思的句子，即所谓的“主题句”来体现。那么，主题句通常在哪里呢？(1)主题句在文首；(2)主题句在文中；(3)主题句在文末；(4)主题句以首尾呼应的形式出现在文首和文末。 1. 主题句在文首 这类文章写法上的特点是：文章的第一句起着点题的作用，概括了文章的主要内容或信息，下文接着对主题句所涉及的话题进行具体的阐述。如：(全国高考题) A JINTAN, JIANGSU: The 20 students —18 boys and 2 girls —had a thousand reasons to be proud of themselves. They had just climbed their way to the top rung(阶梯)out of 4 million students taking part in the Fifth National Hua Luogeng Gold Cup Mathematics Contest (竞赛)on Tuesday evening. The 20 gold medal winners are all primary and middle school students under the age of 14.
浙江2017高考英语阅读理解【主旨大意题】讲解及选练（含答案） 高考英语阅读理解常考点分析 阅读理解试题常采用以下四种题型： 1. 考查考生快速捕捉信息、处理信息的能力(细节理解题)； 2. 考查考生对某个词或词语的理解能力(词义猜测题) ； 3. 考查考生对文章主旨大意或段落大意的概括能力(主旨大意题)； 4. 考查考生对文章的隐含意义、延伸意义的推理判断能力(推理判断题)。 【主旨大意题】 主旨大意题要求考生对全文的内容或某一段或某几段的内容加以合理的归纳，目的是检查对短文整体或某一或某几个段落的理解概括能力。它可以是文章或段落中心的陈述，也可以是文章标题的选择。有些文章尤其是说明文和议论文，往往有主题句表明中心思想。但有些文章，比如记叙文往往没有明确的主题句，需要考生在认真体会，明确作者的意图的基础上来概括文章的中心。 【备考策略】 1. 注意主题段落和主题句的位置，特别是文章首段和结尾或段首和段尾； 2. 注意提炼文章的关键词，文章的关键词有时候会出现在正确选项中。 【干扰项特点】 1. 以偏概全。干扰项只阐述了文章的一部分内容，也就是文章的局部信息。 2. 主题扩大。干扰项所归纳、概括的范围过大，超过文章实际所讨论的内容。 3. 张冠李戴。命题者有意地把属于A的特征放在B的身上，构成一个干扰项。 4. 断章取义。干扰项常常以文章中的个别信息作为选项的设置内容，或者以次要的事实或细节冒充全文的主要观点。 【真题回放】 A medium, in advertising talk, is the way you communicate your message. You might say that the first medium used in advertising was signs with symbols. The second medium was audio, or sound, although that term is not used exactly in the way we use it today. Originally, just the human voice and maybe some kind of simple instrument, such as a bell, were used to get people’s attention
海淀区2015高考英语阅读理解训练（15）（答案） 【2015高考复习】阅读理解 What is the most popular food in western countries? If you are not sure, statistics might give you the answer. Every year，some 20 million people walk into restaurants and buy 2 billion sandwiches. Americans alone eat more than 1 billion sandwiches annually. If you lined up all the sandwiches Westerners eat in a year, they would go around the world 13 times! When John Montagu made the very first sandwich in England in 1762, he couldn't have imagined that it would still be very popular almost 250 years later. There is a campaign starting this month in the US to find the healthiest and best tasting sandwich in the country. Sandwiches are commonly carried to school or work in lunch boxes or brown paper bags to be eaten for lunch. They are also taken on picnics and hiking trips. Their long-lasting popularity lies in their convenience and fast preparation time. You can put everything you want inside a sandwich. They are easy to clean up after, nutritious and come in hundreds of different kinds. Well-known American chef Dave Lieberman adds another reason.“I think people like to touch their food, kids especially. It's just a natural instinct. You don't have to use a knife and fork to eat a sandwich，” he said. Sandwiches can be hot or cold with almost any kind of filling. One of the most popular kinds is the BLT—bacon，lettuce and tomato. Although it is a simple food, it can still be creative. Sandwiches can be served open-faced, with sushi inside or grilled with delicious fillings. 【语篇解读】西方国家最普遍的食物是什么？当约翰在英格兰做出第一份三明治时，他不会想到在几乎250年后的今天三明治仍然大受欢迎。三明治里面的馅各种各样，冷热均可食用。虽然三明治做法简单，但仍然具有创新性。三明治可以做成露馅的单片吃，可以在里面放入寿司，还可以加入美味馅烤着吃。 36．The author intends to________. A．tell us the histor y of sandwich-making B．introduce a popular food in the West C．show how sandwiches are made D．explain why westerners like sandwiches 答案 B [主旨归纳题。根据文章第一句话“What is the most popular food in western
2016年高考英语阅读理解指导三——主旨大意题 Don’t give up your whole garden just for an attractive rose. 一、主旨大意题型特点： 主旨大意题要求在理解全文后________________，____________或者是_________，考查考生的归纳总结能力。这类题需要______________，抓住文章的______和_____，同时兼顾________以及文章出现的________。此类试题通常以概括中心、揭示主题、选择标题等形式出现。 查找主旨、标题时，我们要学习识别文章中__________________的信息，这种信息应能归纳和概括文中其它信息所具有的______。做主旨大意题时，应采用_______的方式，跳过生僻词，抓住________和_______，快而准地把握文章主旨。 【例1】Choose the most general word. A. Chemist B. Physicist C. Scientist D. Biologist 【例2】Choose the most general sentence. A. The hotel offers complimentary coffee from 7 to 10 a.m. daily. B. There are many reasons why guests feel at home at the Glorietta Bay Inn. C. The coin-operated laundry room has an ironing board. D. There are a number of extra services at the Glorietta Bay Inn including baby-sitting. 【例3】Choose the title that best expresses the idea of the paragraph. There is a simple economic principle used to determine prices. It is called the law of supply and demand. Supply means the amount of, or access to, certain goods. Demand represents the number of people who want those goods. If there are more goods than wanted, the price of them falls. On the other hand, if the demand for those goods is much greater than the supply, then price rises. Of course manufacturers prefer to sell more goods at increased prices. A. Economic Principle B. Law of Supply and Demand C. More Goods, Lower Prices D. Fewer Goods, Higher Prices 二、主旨大意题题干形式： 1. ________________________ (main idea): (1) The main idea of the passage is… (2) The passage is mainly about… (3) The passage is mainly discussed… (4) Which of the following statements best expresses the main idea of the passage? (5) What is the passage mainly about? 2. _________________________ (title): (6) The best title for the passage might be… (7) Which of the following can be the best title for the passage? 三、主题句的特点： 1. 主题句与文体体裁之间的关系：议论文和说明文一般有主题句，且一般位于______； 而记叙文一般没有主题句； 2. 段落主题句一般位于_____________； 3. 主题句所表达的意思具有_______和________；句子________单, 一般不会采用长句 或结构复杂的句子； 4. 文章或段落的其他句子都是对主题句的进一步________________________。
(1) “You're just in time, Joe. We're going to play cowboys（牛仔）and Indians, and you can be the Indians. ”One of my cousins（堂兄弟）said. “How many Indians?”I asked. “Oh, about a thousand. ”He answered, and before I could say no，I was pushed out into the night and became a thousand Indians. Two minutes later I was running in the fields with a group of cowboys behind. The shouts of “After them. Let's catch the killers!”and other such TV play language came into my ears as I ran round a corner and hurried into my Grandpa's car． “We've got him, boys. Let's go and catch him!” But no one wanted to come to get me. All of my cousins except one were always very friendly with. It was quiet outside. And I went out of the car to have a look. Just then I heard a shout , “Bring the rope（绳子）, and we can burn him. ” “Only Indians burn people. Cowboys.”I stopped just in time. I had almost said, “Cowboys hang（绞死）people. ” I was tied to a tree, and the cowboys were looking for some wood when my dear mother called, “We're leaving now. ” “Untie me.”I shouted. ”We're going. “Why did Bobby want matches（火柴）?”Mum asked when we were in the car. “He was asking Dad whether he had any. ” “oh, he was just going t matches? MA TCHES? Are you sure he wanted matches” Mother was quite sure, and I didn't say any more. 1．How many children played the Indians? [ ] A．One thousand B．One hundred C．One group D．One 2．Why did Joe's cousin say that Joe was just in time? Because______. [ ] A．there were not enough children four the game B．the game was just going to start C．none of his cousins wanted to be the Indians D．they were waiting for Joe 3．Joe didn't say “Cowbays hang people.”Because______. [ ] A．he was tied to a tree B．that would make things worse C．he was caught by the cowboys D．that would make the cowboys angry 4．Which of the following is TRUE? [ ] A．One of Joe's cousins was looking for matches. B．Dad didn't want to give the children any matches. C．Bobby wanted to get some matches from his father. D．Mum didn't think children should play with matches. 5．The name of the story should he“______.”[ ] A．Joe and his cousins B．Who knows what danger is waiting there
高考英语阅读理解专题训练主旨大意篇 （一） Why do Americans struggle with watching their weight, while the French, who consume（消耗）rich food, continue to stay thin? Now a research by Cornell University suggests how life style and decisions about eating may affect weight. Researchers concluded that the French tend to（往往，倾向于）stop eating when they feel full. However, Americans tend to stop when their plate is empty or their favorite TV show is over. According to Dr. Joseph Mercola, a health expert, the French see eating as an important part of their life style. They enjoy food and therefore spend a fairly long time at the table, while Americans see eating as something to be squeezed（挤出）between the other daily activities. Mercola believes Americans lose the ability to sense when they are actually full. So they keep eating long after the French would have stopped. In addition, he points out that Americans drive to huge supermarkets to buy canned and frozen foods for the week. The French, instead, tend to shop daily, walking to small shops and farmers' markets where they have a choice of fresh fruits, vegetables, and eggs as well as high-quality meats for each meal. After a visit to the United States, Mireille Guiliano, author of French Women Don't Get Fat, decided to write about the importance of knowing when to stop rather than suggesting how to avoid food. Today she continues to stay slim and rarely goes to the gym. In spite of（尽管）all these differences, evidence shows that recent life style changes may be affecting French eating habits. Today the rate of obesity —or extreme overweight —among adults is only 6%. However, as American fast food gains acceptance and the young reject（拒绝）older traditions, the obesity rate among French children has reached 17% — and is growing. （1）In what way are the French different from Americans according to Dr. Joseph Mercola? A. They go shopping at supermarkets more frequently. B. They squeeze eating between the other daily activities. C. They regard eating as a key part of their lifestyles. D. They usually eat too much canned and frozen food. （2）This text is mainly the relationship between _________. A. Americans and the French B. life style and obesity
2011届英语阅读理解专练 主旨大意题 A.设题方式 ①.考查文章的中心思想 The main idea/key point of this passage is that_____. The passage is mainly about __. From the passage we can learn/conclude that_________. Which of the following statements best expresses the main idea of the passage ②.考查文章标题的选择 The best title/headline for this passage is_________. Which of the following is the best title What would be the best title for the text The title that best expresses the ideas of this passage is_________. ③.考查作者的写作态度和意图 What is the author’s main purpose in this passage The writer’s purpose in writing this story is____. In the passage the author wants to tell___. The writer’s attitude toward ... is___. B.干扰项特点 ①. 以偏概全。干扰项只阐述了文章的一部分内容，也就是文章的局部信息。 ②. 断章取义。干扰项常常以文章中的个别信息或个别字眼作为选项的设置内容，或者以次要的事实或细节冒充全文的主要观点。 ③. 主题扩大。干扰项所归纳、概括的范围过大，超过文章实际所讨论的内容。 ④. 张冠李戴。命题者有意地把属于A的特征放在B的身上，构成一个干扰项。考生不注意的情况下，会造成错选答案。 ⑤. 无中生有或似是而非。有的干扰项中的关键词语好像在文章中谈到了，但认真分析之后你会发现这类干扰项的内容与文章的内容毫无联系。 C.解题指导 1.分清主次，抓住主干，找出主题句。 主题句是归纳表达文章中心思想的句子,它的出现有四种情况: 1）主题句在开头?主题句出现在段落或文章的开头部分,起着开宗明义?点明主题的作用,它可以使读者一开始就明白文章所讲的内容主旨?而支撑句则使用一些具体的人、物、数字或具体的步骤来阐述或论证
英语阅读理解专题指导－主旨大意题 主旨大意题在阅读理解试题中所占比例及难度都相当大。主旨大意是作者在文章中要表达的主要内容，是全文的核心，作者在文章中努力通过各种细节信息来阐明中心话题。因此，把握主旨大意对于正确理解全文具有重要意义。要找出主旨大意，应采用快速阅读法浏览全文，阅读时要注意抓住表达中心思想的句子。文章不同，中心句在文章中的位置也就不同，但一般情况下阅读时应特别留意文章的开头、结尾及各个段落的首句和尾句，因为它们往往包含文章的中心议题。常见的命题方式： What is the main idea of this passage? What dose this passage mainly concern? The main theme of this passage is_____________ The main point of the passage is___________ Which of the following is the best title for the passage? The title that best expresses the theme of the passage is______ The purpose of the writer writing this passage is_____ Which of the following best describes the passage as a whole? 文章主题常常可以通过文章的写作方法来体现，有以下几种情况： 1。题句位于句首。主题句出现在文首，开门见山，提出主题，随之用细节来解释、支撑主题句所表达的主题思想。这是英语中最常见的演绎写作法。2。主题句位于段末。主题句出现在文章结尾是作者采用了先摆事实，后作结论的手法。这种段落称作归纳型段落。这是英语中最常见的归纳写作法。3. 主题句首尾呼应。为突出主题，作者先提出主题，结尾时再次点出主题，这种首尾呼应的写作方法也较为多见。通常，前后表述主题的句子不是简单的重复，后面的表述往往有进一步的引申或发展的意味。4。主题句位于段落的中间。主题句出现在文章的中间，通常前面只提出问题，文章的主题由随之陈述的细节或合乎逻辑的引申在文中导出，而后又作进一步的解释、说明或发展。5。主题句隐含在段意之中。全文没有明确的主题句。其中心思想包含在各个句子中，在这种情况下，读者要把所有已知的细节综合起来，进行逻辑推理，概括归纳出主题句。 【典例1】 The global energy crisis is approaching. What can we do? Here are some steps you can take。 Cooling puts the greatest stress on your summer energy bill and the power grid(电网). Just as a tune-up for your car can improve your gas mileage, a yearly tune-up of your heating and cooling system can improve efficiency and comfort. Clean or replaces filters monthly or as needed。 …… Drive the car that gets better gas mileage whenever possible if you own more than one vehicle. If you drive 12,500 miles a year, switching 10 percent of your trips from a car that gets 20 miles per gallon to one that gets 30 mpg will save you more than ￡65 per year。 Carpool. The average U.S. commuter(乘车上班族) could save about ￡260 a year by sharing cars twice a week with two people in a car that gets 20.1 mpg—assuming the three passengers share the cost of gas. This passage is mainly about ________。 A. energy-saving tips B. fuel-saving tips C. do-it-yourself tips D. environment-protecting tips 【解析】本文主要介绍了如何节约能源。本文是一篇科普文章，主题很明显，文章一开始就点明了主题，接下来整篇文章都是围绕如何save energy展开，而save fuel仅仅只是其中的一部分。故选A。针对主旨大意类题目，应