2024届高考英语核心688个词汇例句+短文语境版（421-450合集）讲义

高考英语核心688个词汇421-430 421 grasp [grɑ:sp] v.抓紧；抓牢；理解；领会 n.紧抓，紧握；理解（力）；领会；能力所及 1 It took her a while to fully grasp the complexity of the situation. 她花了一段时间才完全理解这种情况的复杂性。 2 A firm grasp of the basics is essential for advanced study. 牢固掌握基础知识对于深入学习至关重要。 3 The concept of quantum physics is beyond my grasp. 量子物理的概念超出了我的理解能力。" 422 decrease ['di:kri:s,di:'kri:s] v.&n. 降低，减少 Efforts to decrease pollution have been somewhat successful. 减少污染的努力已经取得了一定的成功。 423 beneficial [ˌbeni'fiʃəl] adj.有益的,有利的 1 Word Family 名词 (Noun) benefit: 利益；好处 beneficiary: 受益人 形容词 (Adjective) beneficial: 有益的；有利的 动词 (Verb) benefit: 受益；得到好处 副词 (Adverb) beneficially: 有益地；有利地 II 例句 Finding a mentor can be highly beneficial for career development. 寻找一位导师对职业发展大有裨益。 424 define [di'fain] v.定义，明确 I Word Family 名词 (Noun) definition: 定义 形容词 (Adjective) definite: 明确的；确定的 indefinite: 不确定的；无限期的 动词 (Verb) define: 定义；明确 副词 (Adverb) definitely: 明确地；肯定地 indefinitely: 无限期地；不确定地 II 例句 The role of a teacher is difficult to define. 教师的角色难以定义。 425 vast [vɑ:st] adj.广阔的，巨大的 1 The vast desert stretched out as far as the eye could see. 广袤的沙漠一望无际。 2 The internet offers vast resources for research. 互联网为研究提供了广泛的资源。 426 witness ['witnis] v.目击；n.目击者，证人 1 She was a witness to the accident and gave a statement to the police. 她是事故的目击者，并向警方提供了证词。 2 Historical events have been witnessed by many. 许多历史事件被众多人目击。 427 wrap [ræp] v.包裹，覆盖 She wrapped the gift in colorful paper. 她用彩色纸包裹了礼物。 428 candidate ['kændidit] n.候选人，应试者 She is a strong candidate for the scholarship. 她是这个奖学金的有力候选人。 429 affair [ə'fɛə] n.公共事务，政治事务；事件，事情；风流韵事 The government official resigned due to a scandalous affair. 由于一起丑闻，那位政府官员辞职了。 430 acquire [ə'kwaiə] v.获得，取得；购得 I Word Family 名词 (Noun) acquisition: 获得；收购 形容词 (Adjective) acquisitive: 渴望获得的；贪婪的 动词 (Verb) acquire: 获得；收购 II 例句 1 She acquired a new language during her stay abroad. 她在国外期间学会了一门新语言。 2 The museum acquired several new pieces for its collection. 博物馆为其收藏获得了几件新作品。 【421-430 语境小短文】 In a vast and complex world, underst