As we have seen, the focus of medical care in our society has been shifting from curing disease to preventing disease-especially in terms of changing our many unhealthy behaviors, such as poor eating habits, smoking, and failure to exercise.

　　主干：the focus has been shifting

　　1. 句首As引導(dǎo)非限制性定語從句，As指代主句所說的內(nèi)容，在從句中作seen的賓語。

　　2. 主句中破折號(hào)后的內(nèi)容是短語介詞in terms of引導(dǎo)的介詞短語作狀語，表示從......方面來說，changing與前面的shifting構(gòu)成語義再現(xiàn)。

　　譯文：正如我們所看到的一樣，我們社會(huì)醫(yī)療的重心正在從治療疾病轉(zhuǎn)到預(yù)防疾病上來---特別是要改變我們?cè)S多不健康的行為，比如說不良的飲食習(xí)慣、抽煙、忽視鍛煉。