Unit 2 Numbers词汇 课件－2023-2024学年沪教牛津版英语八年级上册

Unit 2 Numbers 词汇 01 课时精讲 重点词汇学习。 1．wise adj．充满智慧的 (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智者。 (3)wisely adv．聪明地；明智地 To use time wisely is necessary for a bright man． 明智地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，他失去了一次绝好的机会。 (5)It is ______ (明智的) of her to give us much help．Everyone is thankful for her help. (6)It's ________ (不明智的) to make a decision in a hurry without thinking about it carefully. wise unwise 2．challenge v．向(某人)挑战 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． 她是美国总统最强大的挑战者。 (3)challenging adj．有挑战性的 (4)His brother challenged him ____ a game of chess． 他弟弟向他挑战下棋。 (5)The young man accepted the ___________ bravely. 那位年轻人勇敢地接受了挑战。 (6)It is difficult for the new student to complete this _____________ task． 对新生来说，完成这项具有挑战性的任务是很困难的。 to challenge challenging 3．promise v．许诺；承诺 n．许诺；诺言 (1)If one makes a promise, he should keep it．如果作出了承诺，就应该遵守。 (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 不守承诺/作出承诺 He makes a promise and never breaks 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。 (5)They __________ (许诺) to help us, but we didn't see them there. (6)My parents made a _________ (许诺) to buy a bike for me. promised promise 4．double v．(使)加倍 adj．双的；两倍的 (1)The number of factories may double to 1，000 within 10 years． 工厂的数量在10年内可能翻倍，达到1000家。 (2)It has the double advantage of being both easy and cheap． 它具有既容易又便宜的双重优点。 (3)Would you like to book a ________ or a single room? 你想预订一个双人间还是单人间？ (4)The GDP of our city _________ last year． 去年我们市的GDP翻了一番。 double doubled 5．amount n．数量；数额　v.等于；相当于；总计；共计 (1)He needs that amount of money to