吃透英语课本，提升在校竞争力
v. 使尖锐；使急剧；使提高
现在分词：sharpening
第三人称单数：sharpens
过去式：sharpened
过去分词：sharpened
Her gaze sharpened, as if she had seen something unusual.
她眼睛一亮，好像看到了不寻常的东西。
He will need to sharpen his diplomatic skills in order to work with Congress.
他将需要增强外交技巧以与国会打交道。
He started to sharpen his knife.
他开始磨刀。
Anne sharpened her pencil and got out her homework.
安妮把铅笔削尖，然后拿出家庭作业来。
sharpen up
使……更敏锐；认真思考
vt.削尖；磨快；使敏捷；加重
aggravate
grind
考纲分布
v. (使)变锋利; 增强
考纲释义
真题例句
A little stress caused by the exams is useful as it can sharpen your mind and motivate (激发) you to do well.
考试带来的一点点压力是有益的，因为它可以让你思维敏捷，激励你做得更好。
[2021 南京市卷 阅读填空]
备考派生词
shark
n. 鲨；鲛；鲨尾鱼；冬夜蛾；贪婪狡猾的人；敲诈勒索者；骗子；能手；专家
sharpen
v. 削尖；磨尖；磨快；变尖；变锋利；尖锐化；急剧化；改善；改进
sharply
adv. 急剧地；锐利地；严厉地；明确地
sharpener
n. 卷笔刀；磨具；研磨者
