在雅思阅读必考主流题型中，单项选择题是中国学生最为熟悉的一种考题形式。但是，熟悉不同于容易解决，在阅读中选择题可以概括为“易定位，难解题”，即选择题并不考查定位能力，考生可以通过题干关键词快速准确地定位到文中对应点，但是需要理解句意以及排除混淆项的干扰才能选出正确答案。鉴于选择题目的重理解，强混淆及耗时多，许多考生对其“避之唯恐不及”。接下来，朗阁海外考试研究中心的老师将带领考生们一起全面剖析选择题型。
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单项选择题型的特点
1、符合顺序原则的细节题目。题目在原文中的对应点符合文章顺序，在定位题目时应充分利用顺序性原则加快定位速度及准确性。
例1 剑6 test 4 passage 3
31、A recent survey found that in Britain secondary schools
32、Children who are bullied
33、The writer thinks that declaration “there is no bullying at this school”
34、What were the findings of research carried out in Norway?
31、题解题点定于文章A段最后一句，根据顺序性原则32题应在B段首句开始定位，32题解题点定于B段最后一句，33题则应在C段首句开始定位，以此类推解决后面的选择题的定位问题。
2、题干中提取定位词进行定位。定位词通常为实意名词，动词及形容词。绝大多数单项选择题的定位问题可以依靠题干解决，不涉及到四个选项。选择题题干可以分为两大类：（一）题干中明确指出出题段落，此类选择题题目在文中的对应点相对较分散。（二）题干中不提及涉及段落，此类选择题目较之于第一种题干形式在文中对应点相对紧凑，文中通常一段出一题或一段出两题。
例1 剑8 test 2 passage 3 The meaning and power of smell
33、According to the introduction, we become aware of the importance of smell when
文中对应句：without being consciously aware of their importance to us. It is only when the faculty of smell is impaired for some reason......
题干中aware of the importance与文中aware of the importance一致，为原词，表示意识到嗅觉的重要性。
34、The experiment described in paragraph B
文中对应句：In one well-known test, women and men were able to distinguish by smell alone clothing......
题干中的experiment与B段中test为同义词转换，表示试验、测试。
35What is the writer doing in paragraph C?
题干中无其他关键词，此题目解题需要从段首开始逐句理解对应选项。
36、What does the writer suggest about the study of smell in the atmosphere in paragraph E?
文中对应句：Researchers have still to decide whether smell is one sense or two--one responding to odours proper and the other registering odourless chemicals in the air.
题干中smell in the atmosphere对应到E段中odour, in the air为同义词转换，表示大气中的气味。
对于此类题干中已经明确指出段落的选择题，考生应直接在指定段落根据题干中的关键词具体定位。
例 2 剑7 test 4 passage 3 Effects of noise
27、The writer suggests that people may have difficulty sleeping in the mountains because
文中对应句：And yet most of us have had the experience of having to adjust to sleeping in the mountains or the countryside because it was initially ‘too quiet'
题干中sleeping in the mountains与文章第一段中的sleeping in the mountains一致，为原词，表示在山林中入睡。
28In noise experiments, Glass and Singer found that
文中对应句：For example, Glass and Singer (1972) exposed people to short bursts of very loud noise and then measured their ability to work out problems and their physiological reactions to the noise.
题干中Glass and Singer与文章第一段中的Glass and Singer一致，为大写原词。
29、Researchers discovered that high noise levels are not likely to interfere with the
文中对应句：For example, high noise levels interfered with the performance of subjects who were required to monitor three dials at a time, a task not unlike that of an aeroplane pilot or an air-traffic controller (Broadbent, 1957).
题干中high noise levels, interfere与文章第二段中的high noise levels interfered一致，为原词，表示高声噪音干涉。
对于此类题干中无指定解题段落的选择题，考生应按照顺序性根据题干中关键词从文中逐题定位，题目在文中相对集中出现。
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单项选择题型正确选项的选择规律
单项选择题型正确选项的选择一般需要理解文中1-3句话解题，不涉及跨段理解，譬如，根据定位句定位到某段段末句，此题只需要理解段末一句即可，不会涉及下一段的句子。另外，正确选项与文中对应句存在对应点（多为同根词替换，同义词替换，句子释义转换）。
例1 剑8 test 2 passage 3 The meaning and power of smell
33、According to the introduction, we become aware of the importance of smell when
A. we discover a new smell.
B. we experience a powerful smell.
C. our ability to smell is damaged.
D. we are surrounded by odours.
正确答案：C
文中对应句：For the most part, however, we breathe in the aromas which surround us without being consciously aware of their importance to us. It is only when the faculty of smell is impaired for some reason that we begin to realise the essential role the sense of smell plays in our sense of well-being.
题干考查什么时候人们能够意识到嗅觉的重要性，文中提到只有当嗅觉的感知由于某些原因损伤后我们才开始意识到嗅觉对于我们的重要性。C选项中的damage与文中impair为同义词转换关系，表示损坏。
例2 剑7 teat 4 passage 3 Effects of noise
27、The writer suggests that people may have difficulty sleeping in the mountains because
A. humans do not prefer peace and quiet to noise.
B. they may be exposed to short bursts of very strange sounds.
C. humans prefer to hear a certain amount of noise while they sleep.
D. they may have adapted to a higher noise level in the city.
正确答案：D
文中对应句：And yet most of us have had the experience of having to adjust to sleeping in the mountains or the countryside because it was initially ‘too quiet', an experience that suggests that humans are capable of adapting to a wide range of noise levels.
题干考查山林入睡困难的原因，文中提到山林中入睡困难的经历表明人们有能力适应高噪音范围的噪音。D选项中的adapted与文中adapting对应，表示适应。
例3 剑9 test 4 passage 3 The development of museums
33、The writer says that museums, heritage sites and theme parks
A. often work in close partnership.
B. try to preserve separate identities.
C. have similar exhibits.
D. are less easy to distinguish than before.
正确答案：D
文中对应句：In a related development, the sharp distinction between museum and heritage sites on the one hand, and theme parks on the other, is gradually evaporating. They already borrow ideas and concepts from one another.
题干考查heritage sites与theme parks之间的关系，文中指出在最近的发展中，博物馆，遗址与主题公园之间的明显区别正在逐渐消失，它们互相借鉴分享观点与理念。D选项为它们之间不如之前好区分，选项与文中答案出处为句子释义关系。
考生在选择答案时一定要考虑所选答案与文中出处是否存在对应点。
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单项选择题型中的混淆项归类
单项选择题目的难度高除了考查考生们对于句子的理解能力之外，选项之间的混淆项是对考生设置的另一个障碍。在选择题目中，混淆项的陷阱通常可以分为两大类：“答非所问”类陷阱，“雷同相似”类陷阱。
1、“答非所问”类陷阱。此类陷阱指的是某些选项与文中对应处的句子完全或几乎完全相同，但是与题干主题毫无关系。
例1 剑6 test 4 passage 3
32、Children who are bullied
A. are twice as likely to commit suicide as the average person.
B. find it more difficult to relate to adults.
C. are less likely to be violent in later life.
D. may have difficulty forming relationships in later life.
正确答案：D
文中对应处：Victimised pupils are more likely to experience difficulties with interpersonal relationships as adults, while children who persistently bully are more likely to grow up to be physically violent, and convicted of anti-social offences.
文中指出受到欺凌的孩童成年后会经历人际关系方面的困难，所以答案为D。混淆项C选项与文中children who persistently bully are more likely to grow up to be physically violent词汇几乎相同，但是题干考查的是受到校园暴力的学生会怎样，文中句意为持续欺凌他人的孩子会更暴力，因此跟题干毫无关系，不需要绕弯去考虑C选项。
例2 剑7 test 1 passage 1
27、The book Educating Psyche is mainly concerned with
A. the power of suggestion in learning
B. a particular technique for leaning based on emotions.
C. the effects of emotion on the imagination and the unconscious.
D. ways of learning which are not traditional.
正确答案：D
文中对应点：Educating Psyche by Bernie Neville is a book which looks at radical new approaches to learning, describing the effects of emotion, imagination and the unconscious on learning. One the theory discussed in the book is that proposed by George Lozanov, which focuses on the power of suggestion.
文中为教育心理学主要探讨完全崭新的学习方法，描述情感，想象以及下意识对于学习的影响，因此答案为D. 与传统不同的教学方法。混淆项A选项与文中focuses on the power of suggestion完全相同，但是题干考查的是书涉及的内容，但是focuses on the power of suggestion在文中的主语为One the theory discussed in the book书中讨论的一个理论，因此A选项与题干毫无关系，属于答非所问。
2、“雷同相似”类陷阱。此类陷阱指的是某些选项中的词汇与题目涉及的对应句相似，但是此类选项属于偷换概念，即词汇相似但逻辑等关系与文中不符。
例1 剑6 test 4 passage 3
32、Children who are bullied
A. are twice as likely to commit suicide as the average person.
B. find it more difficult to relate to adults.
C. are less likely to be violent in later life.
D. may have difficulty forming relationships in later life.
正确答案：D
文中对应处：Victimised pupils are more likely to experience difficulties with interpersonal relationships as adults, while children who persistently bully are more likely to grow up to be physically violent, and convicted of anti-social offences.
文中指出受到欺凌的孩童成年后会经历人际关系方面的困难，所以答案为D。混淆项B选项为受欺凌的孩子很难与成年人相处，与Victimised pupils are more likely to experience difficulties with interpersonal relationships as adults词汇相似度很高，但是文中句意为受欺凌的孩子成年后人际关系处理有困难，B选项与文中句子无法正确对应。
例2 剑7 teat 4 passage 3 Effects of noise
28、In noise experiments, Glass and Singer found that
A. problem-solving is much easier under quiet conditions.
B. physiological arousal prevents the ability to work.
C. bursts of noise do not seriously disrupt problem-solving in the long term.
D. the physiological arousal of control subjects declined quickly.
正确答案：C
文中对应处：For example, Glass and Singer (1972) exposed people to short bursts of very loud noise and then measured their ability to work out problems and their physiological reactions to the noise. The noise was quite disruptive at first, but after about four minutes the subjects were doing just as well on their tasks as control subjects who were not exposed to noise. Their physiological arousal also declined quickly to the same levels as those of the control subjects.
文中指出试验测试人们听到噪音后解决问题的能力以及噪音引起的生理反应。结果表明噪音最初具有扰乱性，但是4分钟之后听到噪音的实验人表现得与参照组的人一样好。听到噪音的实验人的生理反应很快下降到参照组人们的水平。混淆项D选项与Their physiological arousal also declined quickly to the same levels as those of the control subjects词汇完全重合，但是D选项偷换了概念，文中意为噪音对于实验人的影响只是最初的，四分钟之后表现得跟参照组（即未听到噪音的人）一样，听到噪音的实验人的生理反应很快下降到跟参照组的相同。但是D选项为参照组的生理反应下降很快。
