Unit 2 Numbers第 1 课时 词汇栏目导航课 时 精 讲课 时 过 关课 后 拓 展课 时 精 讲重点词汇学习。 1．wise adj. 聪明的；有智慧的；博学的；博识的；英明的；明智的 (1)He is a wise person. 他是一个智者。 (2)wisdom n. 智慧；才智；明智；知识；学问 The man was regarded as a man of great wisdom of his time. 他是那个时代公认的才子。 (3)wisely adv. 聪明地；明智地 To use time wisely is necessary for a bright man. 合理利用时间对一个聪明人来说是必需的。 (4)unwise adj. 不明智的；愚蠢的；轻率的 = not clever He lost an excellent chance because of an unwise decision. 由于一个不明智的决定，让他失去了一次绝好的机会。 【小试牛刀】 (5)It is _____ of her to give us much help. Everyone is thankful to her. (6)It’s _______ to make a decision without thinking about the result. unwise wise 2．challenge v. 挑战；考查……的能力；质疑 n. 挑战；艰巨任务 (1)The new government’s first challenge is how to improve the terrible traffic. 新政府面临的第一个难题是如何去改善糟糕的交通。 (2)challenger n. 挑战者 She is the strongest challenger to the president of the US. 她是美国总统最大的挑战 者。 【小试牛刀】 (3)His brother challenged him ___ a game of chess. (4)The young man accepted the __________ bravely. 那位年轻人勇敢地接受了挑战。 challengeto3．promise v. 许诺；承诺；有指望；有前途 n. 许诺；希望；指望 (1)If one makes a promise, he should keep it. 如果做出了承诺，就应该遵守。 【固定短语】 (2)promise to do sth. 承诺做…… The government promises to look into the matter. 政府答应调查这个问题。 (3)break /make a promise 不守/作出承诺 He made a promise and never broke it. 他作出承诺并从不失信。 (4)keep a promise 信守诺言 He kept his promise to visit his aunt regularly. 他信守诺言，定期去看望姑妈。 【小试牛刀】 (5)They _________ to help us, but we can’t see them now. (6)My parent...
