新东方考研英语必背500句
第094句
as can be seen from the comparison of these figures, the principle involves the active participation of the patient in the modification of his condition.
译文：正如通过比较这些数字所看到的结果一样，这项规则需要病人在治疗时积极参与。
点睛：这句话的主干是...the principles involves the active participation...。as引导的是非限定性定语从句。involve此处意为“要求（某人）参与”。介词短语in the modification of his condition作句子的状语。
考点归纳：和involve相关的常见短语有：
*involve doing sth.需要做某事
making decisions sometimes involves raking a chance.
做决定有时需要碰运气。
*involve sb. in sth.使某人参与某事
the teachers try to involve as many students as possible in the activity．
老师尽量让更多的学生参与该项活动。
*involve oneself( in)让自己卷入…
i'm unwilling to involve myself in your business.
我不想卷入你的事务之中。