大家知道雅思考试的阅读速度和单词词汇量是分不开的，但是在记单词时还需要掌握它的学术含义，帮助我们考试时提升阅读速度。考生们在做阅读时经常会有某句话翻译不通从而造成理解障碍的问题。实际上阅读中的很多词汇用法并非是我们最熟悉或者想当然的那个含义。比如“mine”这个单词，在学术文章中经常表示“矿物”而并非‘我的’。
因此为了提高大家的阅读理解质量，考生们要学会掌握某些常见单词的其他“学术”含义。
1. in turn
大多数同学会理解为 “反过来”，认为前后语义是对立的，但实际上阅读中也可能表示顺接关系，翻译为“接着会…(发生)…”
The conventional theory is that people yawn when bored or sleepy because yawning raises blood oxygen levels, which in turn raises alertness.
2. account for
大家背四级单词时更多的理解为 “(比例上)占…”的含义，实际上account for还有“解释，说明……”这个意思。
Heavy rain accounts for most of the water that enters into lakes.
Scientists will not be able to account for climate changeover the past century until they learn more about the urban heat island.
雅思阅读速度如何提高，从单词入手
3. precipitation
这是个话题词汇，大多数文章中翻译为 “沉淀”，不过也有“降水”的意思。
Ordinary meteoric water is water that has soaked into the ground from the surface, from precipitation (rain and snow) and from lakes and streams.
4. game
不是游戏哦，在学术文章中经常用来表达“野生猎物”这个意思。下次课别再困惑了。
They had experienced great difficulty finding game west of the Rockies and not until the second of December did they kill their first elk.
5. solution
除了“解决方案”，还要知道另一个常见含义“溶液”。这个词在小作文流程图写作中也是一个得分词汇。
Mineral deficiencies in many plants can be cured by misting their roots with a nutrient solution or by transferring the plants to a soilless nutrientsolution.
6. current
又一个学科背景词汇。常见的是形容词表“当下的”，实际还有“洋流、电流、气流”等含义。
The same thing happens to this day, though on a smaller scale, wherever a sediment-laden river or stream emerges from a mountain valley onto relatively flat land, dropping its load as the current slows: the water usually spreads out fanwise, depositing the sediment in the form of a smooth, fan-shaped slope.
7. browse
家熟知的是“浏览”的含义，而实际上托福阅读中更常表达得是“觅食”这个意思。
Where the forest inhibits the growth of grass and other meadow plants, the black-tailed deer browses on huckleberry, salal, dogwood, and almost any other shrub or herb. But this is fair-weather feeding.
8. impact
除了“影响”，还衍生出“冲击、撞击”的意思。这里提醒大家impact指代的影响也常常是负面含义的影响，大家在写作中要注意。
In view of these facts, scientists hypothesized that a single large asteroid, about 10 to 15 kilometers across, collided with Earth, and the resulting fallout created the boundary clay. Their calculations show that the impact kicked up a dust cloud that cut off sunlight for several months, inhibiting photosynthesis in plants; decreased surface temperatures on continents to below freezing…
9. complex
作为名词的时候可以表达“建筑群”的含义。
It had over 2,000 apartment complexes, a great market, a large number of industrial workshops, an administrative center, a number of massive religious edifices…
10. readily
别因为长得像“ready”就是准备好的意思，这个词其实是“容易地”意思。
The release of heat energy is retarded by the tall vertical city walls that do not allow infrared radiation to escape as readily asdoes the relatively level surface of the surrounding countryside.
11. evident
又一个大家习惯想当然的词。都说成“证据”就不对了，还要知道“明显的”。
Wind velocity also increases with altitude and may cause serious stress for trees, as is made evident by the deformed shapes at high altitudes.
12. collectively
不能望文生义为“收集地”，还有“共同地”这个释义较为常见。
Eventually, six round forms of handwriting, composed of three pairs of big and little scripts known collectively as the Six Pens, became the standard repertory of every calligrapher.
提醒所有备考的同鞋，以后再遇到这种疑惑不清的单词一定不要想当然，查清楚它的实际含义才能避免真实考试时的错误。
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