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2017年10月13日雅思阅读机经.

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　　2012年10月13日的雅思考试过后，澳际小编也在第一时间整理了完整的2012年9月15日雅思阅读机经，在此次的雅思阅读考试的三篇文章中，其中比较典型的几个题型的TRUEFALSENOT GIVEN、Complete table、多选题、Sentence completion的出题比例依旧比较稳定，可以看到判断TRUEFALSENOT GIVEN还是2012年10月13日雅思阅读机经中的重头戏。

考试日期：	2012年10月13日
Reading Passage 1
Title:	农村旅游（20110226老题）
Question types:	段落信息配对题；完成句子；Summary
文章内容回顾	关于农业旅游业带来的各种影响和应用，比如随着农业旅游业的发展，大量外来人口对当地的经济产生影响。
题型难度分析	文章难度一般，可参照平行阅读法。
题型技巧分析	信息包含题已是千夫所指，具体的做题方法一直比较欠缺。个人比较强调对段落中逻辑关系的寻找，这些点附近往往是段落信息包含题的答案所在。千万不能以这个题型作为解题的重心，这种题型能做几个是几个，不能贪小误大。
剑桥雅思推荐原文练习	《精六六五阅写补充练习》P150 “wildness tourism”
Reading Passage 2
Title:	biological clock
Question types:	heading; 多选；判断
文章内容回顾	可以参照20100115的旧题，但是版本众多，莫衷一是。可参阅《精六六五阅写补充练习》P294页，”how does the biological clock tick”, 这篇文章的题型和难度与此次考试的文章的题型和难度相近。
英文原文阅读	Biological Clocks Survival and successful reproduction usually require the activities of animals to be coordinated with predictable events around them. Consequently, the timing and rhythms of biological functions must closely match periodic events like the solar day, the tides, the lunar cycle, and the seasons. The relations between animal activity and these periods, particularly for the daily rhythms, have been of such interest and importance that a huge amount of work has been done on them and the special research field of chronobiology has emerged. Normally, the constantly changing levels of an animal&aposs activity—sleeping, feeding, moving, reproducing, metabolizing, and producing enzymes and hormones, for example—are well coordinated with environmental rhythms, but the key question is whether the animal&aposs schedule is driven by external cues, such as sunrise or sunset, or is instead dependent somehow on internal timers that themselves generate the observed biological rhythms. Almost universally, biologists accept the idea that all eukaryotes (a category that includes most organisms except bacteria and certain algae) have internal clocks. By isolating organisms completely from external periodic cues, biologists learned that organisms have internal clocks. For instance, apparently normal daily periods of biological activity were maintained for about a week by the fungus Neurospora when it was intentionally isolated from all geophysical timing cues while orbiting in a space shuttle. The continuation of biological rhythms in an organism without external cues attests to its having an internal clock. When crayfish are kept continuously in the dark, even for four to five months, their compound eyes continue to adjust on a daily schedule for daytime and nighttime vision. Horseshoe crabs kept in the dark continuously for a year were found to maintain a persistent rhythm of brain activity that similarly adapts their eyes on a daily schedule for bright or for weak light. Like almost all daily cycles of animals deprived of environmental cues, those measured for the horseshoe crabs in these conditions were not exactly 24 hours. Such a rhythm whose period is approximately—but not exactly—a day is called circadian. For different individual horseshoe crabs, the circadian period ranged from 22.2 to 25.5 hours. A particular animal typically maintains its own characteristic cycle duration with great precision for many days. Indeed, stability of the biological clock&aposs period is one of its major features, even when the organism&aposs environment is subjected to considerable changes in factors, such as temperature, that would be expected to affect biological activity strongly. Further evidence for persistent internal rhythms appears when the usual external cycles are shifted—either experimentally or by rapid east-west travel over great distances. Typically, the animal&aposs daily internally generated cycle of activity continues without change. As a result, its activities are shifted relative to the external cycle of the new environment. The disorienting fects of this mismatch between external time cues and internal schedules may persist, like our jet lag, for several days or weeks until certain cues such as the daylight/darkness cycle reset the organism&aposs clock to synchronize with the daily rhythm of the new environment. Animals need natural periodic signals like sunrise to maintain a cycle whose period is precisely 24 hours. Such an external cue not only coordinates an animal&aposs daily rhythms with particular features of the local solar day but also—because it normally does so day after day—seems to keep the internal clock&aposs period close to that of Earth&aposs rotation. Yet despite this synchronization of the period of the internal cycle, the animal&aposs timer itself continues to have its own genetically built-in period close to, but different from, 24 hours. Without the external cue, the difference accumulates and so the internally regulated activities of the biological day drift continuously, like the tides, in relation to the solar day. This drift has been studied extensively in many animals and in biological activities ranging from the hatching of fruit fly eggs to wheel running by squirrels. Light has a predominating influence in setting the clock. Even a fifteen-minute burst of light in otherwise sustained darkness can reset an animal&aposs circadian rhythm. Normally, internal rhythms are kept in step by regular environmental cycles. For instance, if a homing pigeon is to navigate with its Sun compass, its clock must be properly set by cues provided by the daylight/darkness cycle.
题型难度分析	heading题难度较大
题型技巧分析	heading题考查学生对段落大致含义的把握能力，虽然出题人可能希望我们好好的读懂全段，但是考生未必有这样的能力。我们可以根据一些特定的词语在段落中寻找主题句的出现位置： 1. 在段落开头有举例结构的地方往往说明该段的主题句在举例结构之前。 2. 在段落中间有比较明显的转折结构，那么转折后的内容有可能是段落的重点内容。 3. 在段末有表示结果的词语，那么该句句子有可能是段落的主题句。常见的段落结构有：总分结构；对比结构；并列结构；分总结构。总分结构还是占大多数的。
剑桥雅思推荐原文练习	可参阅《精六六五阅写补充练习》P294页，”how does the biological clock tick”
Reading Passage 3
Title:	语音演变
Question types:	summary; 判断；Matching
文章内容回顾	填空：sound laws, fashion, children, assimilation 判断：人们不能得知以前的发音 F 一些语言的变化要大于另外一些 NG 中产阶级对语言的变化也有贡献 T 有一些单词小孩子很难发音 NG (children imitate adult imperfect) 某个单词中的一个字母用另一个字母代替，因为这样人们更方便说 T 某个单词的拼写以后会变 NG temporary这个词的发音和拼写不匹配 T（最后一段，英国人发tempory的音）配对： large-scale change—b被p替换威尔士的人说话像唱歌 Christmas的T为什么不发音
题型难度分析	文章难度中等，可按照平行阅读法，以summary作为做题重点。
题型技巧分析	判断题，主要关注出题点的判断： 1. 谓语动词和宾语 2. be动词和表语 3. 绝对化词 4. 比较关系 5. 因果关系 6. 数字关系只要明确具体考题中涉及到哪一类，然后去文章中根据定位词比对即可。 Summary, 注意空格词性的推断，这样能帮助我们缩小寻找范围。