英语六级-完形语法关键句357. Both in Europe and in the U.S., the day-n

357. Both in Europe and in the U.S., the day-nursery movement received great impetus during the First World War, when shortage of manpower caused the industrial employment of unprecedented numbers of women.

译文　一战期间，由于劳动力的匮乏导致了工业雇工中的女性数量达到了空前的数目，所以欧洲和美国的日托运动都受到了很大的推动。

点睛　本句主干为...the day-nursery movement received...impetus，后面when引导的是时间状语从句。

impetus意为“推动力，促进”。如：

It will have positive impetus function on the development of our economy. 这将对我国经济的进一步发展起到积极的推动作用。

unprecedented意为“空前的，无先例的”。如：

The new technology has reached an unprecedented level. 这种新科技已经达到了一种空前的水平。

shortage of意为“缺乏，短缺”。如：

Shortage of capital is a fundamental factor that restricts the economic development. 资本不足是限制经济发展的一个根本因素。

考点归纳　与shortage of近义的短语还有：

be short of意为“短缺”。如：

They are short of money, but not their willing heart or firm determination. 尽管缺钱，但他们却不缺乏坚定的信念和决心。

be lacking in意为“缺乏，缺少”。如：

They seem to be lacking in experience and patience. 他们看起来缺乏经验和耐心。

be devoid of意为“缺乏”。如：

He's the kind of guy who's not devoid of compassion. 他是那种不乏同情心的人。