1：key
熟义：n. 钥匙
生义：adj. 主要的；关键的
出现生义的真题例句：
(2018全国Ⅱ卷)
According to the report’s key findings, “the proportion who say they ‘hardly ever’ read for fun has gone from 8 percent of 13-year-olds and 9 percent of 17-year-olds in 1984 to 22 percent and 27 percent respectively today.”
2：monitor
熟义：n.班长
生义：vt.监控，监视
出现生义的真题例句：
(2017全国Ⅲ卷)
The U.S. Fish and Wildlife Service carefully monitors and manages the wolf packs in Yellowstone.
