17. The chocolate cake looks great, but I have to watch my weight.
點睛
watch作為動詞原意是“看”，而這里“留意，監(jiān)督”。因此，watch my weight含義為“注意我的體重”，言外之意就是不能吃這塊巧克力蛋糕，否則會變胖的。
考點歸納
watch的用法還有：
Watch the birdie! 瞧這邊！／照相啦?。绹嫡Z）
Watch for fires! 小心火災！
Watch yourself. 留點神。
Watch closely. I'll make turns. 盯緊點，我要轉(zhuǎn)彎了。
Watch your step. 小心腳下。（相當于Mind your step.）
Watch your mouth. 說話留點神。（用于警告別人，相當于Watch your tongue/language.或Be careful of what you say.）
