考研英语必背经典句子及词汇(2)

21、Essentially, a theory is an abstract, symbolic representation of what is conceived to be reality.

理论在本质上是对认识了的现实的一种抽象和符号化的表达。

22、Thanks to modern irrigation, crops now grow abundantly in areas where once nothing but cacti and sagebrush could live.

受当代灌溉(技术设施)之赐，农作物在原来只有仙人掌和荞属科植物才能生存的地方旺盛的生长。

23、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。

24、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。