在多年的雅思阅读考试中，考察的范围和话题多之又多，但是总有一些句子和话题，会成为经典，成为学生学习的参考，环球教育(原名环球教育)小编就为你整理了这样一些经典的句子，不仅有助于考生熟悉有关话题，也能将这些运用到写作乃至听力等其他专项的准备复习当中：

　　句1：The development of mechanical timepieces spurred the search for more accurate sundials with which to regulate them.机械计时器的发展促使人们寻求更精确的日晷，以便校准机械计时器。

　　句2：Anthropology is a science in that anthropologists use a rigorous set of methods and techniques to document observations that can be checked by others.人类学是一门科学，因为人类学家采用一整套强有力的方法和技术来记录观测结果，而这样记录下来的观测结果是供他人核查的。

　　句3： Fungi are important in the process of decay, which returns ingredients to the soil, enhances soil fertility, and decomposes animal debris.

　　真菌在腐化过程中十分重要，而腐化过程将化学物质回馈于土壤，提高其肥力，并分解动物粪便。

　　句4：Although pecans are most plentiful in the southeastern part of the United States, they are found as far north as Ohio and Illinois.:虽然美洲山河桃树最集中于美国的东南部但是在北至俄亥俄州及伊利诺州也能看见它们。

　　句5：Eliminating problems by transferring the blame to others is often called scape-goating.用怪罪别人的办法来解决问题通常被称为寻找替罪羊。

　　句6：Most substance contract when they freeze so that the density of a substance's solid is higher than the density of its liquid.大多数物质遇冷收缩，所以他们的密度在固态时高于液态。

　　句7：The mechanism by which brain cells store memories is not clearly understood.大脑细胞储存记忆的机理并不为人明白。

　　句8：When it is struck, a tuning fork produces an almost pure tone, retaining its pitch over a long period of time.音叉被敲击时，产生几乎纯质的音调，其音量经久不衰。

　　句9：Typical of the grassland dwellers of the continent is the American antelope, or pronghorn.美洲羚羊，或称叉角羚，是该大陆典型的草原动物。

　　句10：Of the millions who saw Haley's comet in 1986, how many people will live long enough to see it return in the twenty-first century.1986年看见哈雷慧星的千百万人当中，有多少人能够长寿到足以目睹它在二十一世纪的回归呢?

　　句11： Anthropologists have discovered that fear, happiness, sadness, and surprise are universally reflected in facial expressions.人类学家们已经发现，恐惧，快乐，悲伤和惊奇都会行之于色，这在全人类是共通的。

　　句12： Because of its irritating effect on humans, the use of phenol as a general antiseptic has been largely discontinued.由于其对人体的影响刺激，一般使用酚作为防腐剂已基本停止。

　　句13：Any profit organizations to survive and ultimately consumers must produce usable or needed products.任何盈利组织若要生存，最终都必须生产出消费者可用或需要的产品。

　　句14：The greater the population there is in a locality, the greater the need there is for water, transportation, and disposal of refuse.一个地方的人口越多，其对水，交通和垃圾处理的需求就会越大。

　　句15：It is more difficult to write simply, directly, and effectively than to employ flowery but vague expressions that only obscure one‘s meaning.简明，直接，有力的写作难于花哨，含混而意义模糊的表达。

　　以上十五个句子你都明白意思了吗?