(单选题)

As people become wealthier, they are increasingly concerned ______ their food consumption from a number of perspectives, such as health, the environment and social impact.

A.of

B.over

C.at

D.about

参考答案：D

参考解析：

考查固定搭配。句意：随着人们变得越来越富有，他们越来越从健康、环境和社会影响等多个角度关注自己的食物消费。be concerned about意为“关心”，和另外三个介词没有搭配。故选D。

知识点：词义辨析英语专业基础知识词汇教师招聘-小学英语