外研社英语必修3 Module4课件.ppt

UNIT 4 Sandstorms in Asia I. INTRODUCTION 1. frightening 【拓展】： n. fright v. frighten adj. frightful/ frighten（表现人的情绪）/ frightening（物的特征或给人带来的感觉） 【词组】： be frightened with sth：被某事吓了一跳 be frightened by sb：被某人吓了一跳 frighten away/ off：吓跑 frighten sb into/out of doing：吓得某人做/不做某事 2. cut down：砍倒，减少，击倒，杀死 eg. His driver was cut down in a traffic accident. 【cut】： cut away：切下，砍掉 cut up：切成碎片 cut out：裁剪，删除 cut off：切断 cut in：插嘴，突然插入 cut at：对准。。。射击 cut across：抄近路 = cut through 3. dig up: 挖（掘）出 4. prevent sb ( from ) doing sth = keep sb ( from ) doing sth = stop sb from doing sth 阻止某人做某事 II. READING VOCABULARY 5. major： adj：较大的，较重要的 eg. This could create major traffic problem. n：主修课目，专业课 v：主修 eg. My major is English. = I major in English. 反义词：minor； minority，majority major in：主修 be in the majority of：占大多数，构成大部分 a majority of：。。。的大多数（名单谓单，名复谓复） 6. a mass campaign：一场大规模的战役 mass： adj：大概的；广泛的，数量极多的 eg. Their latest product is aimed at the mass market. v. 聚集 eg. The general massed his troops for a final attack. n. 许多 eg. There are masses of dark clouds in the sky. the masses：群众=the public a mass of = masses of：许多，大量 7. be caught in：被困于，突然遭遇 eg. He was caught in the heavy snow last night. 同义词组：be stuck in；be trapped in 【catch】： catch hold of：抓住 catch up with：赶上 catch one’s attention：吸引某人的注意 catch on：理解 catch sight of：看见 8. There is nothing to be done.：束手无策/没有办法 在以there be引起的句子中，用来修饰主语的动词不定式可以用被动式，也可以用主动式，句意一样。在口语中主动式用得更多一些。 eg. There is no time to lose/ to be lost. 【注意】：there is nothing to do的主动式译为“没事可做”。与它的被动式意义不同。 9. Sandstorms in China appear to have increased… appear：看上去；似乎=seem 10. wake up to：开始察觉；意识到；认识到 eg. He hasn’t yet woken up to the seriousness of the situation. 11. forecast：预告；预报。 foretell：预言；foresee：预见；forewarn：预警 Predict 根据已有的知识，经验和思想进行“预见性”描述。 It’s hard to predict when it will happen. Forecast 在知识的帮助下告诉大家要发生的事。 The weather forecasts that