Daylightsavingtimewasinstitutedtoincreaseproductivity.

参考答案:

B

动词应用。institute建立，开始：The committee will institute a new appraisal system next year.委员会将于明年制定一套新的评估制度。start开始，使发动：If you are ready，you may start your work．如果你准备好了，你可以开始工作了。reorganize改组，改造，重新组织：The new manager was delegated to reorganize the department.派这位新经理重新组织该部门。encourage鼓励，怂恿：I encouraged her to work hard and to try for the examinations．我鼓励她用功准备考试。