大学英语第四册单元2词汇.docVIP

Unit 2 Book 4 Technology and Happiness Words and Expressions 1) (L.3) gross: a. general, total * gross domestic product (GDP) 国内生产总值 (=His gross annual income, before tax, is just $12, 000.) 这个包裹连盒子总重量是十公斤。 (= The gross weight of the package is 10 kilos, including the box.) 2) (L.3) triple: v. (cause to) grow to three times the amount or number * Apartments with generous spaces in this area will triple in value. 新设备的引进使我们的产量增加到了三倍。 (= The introduction of new equipment has tripled the output.) (=World fuel consumption has tripled since World War Ⅱ.) 3) (L.5) life expectancy: the length of time that a person or animal is expected to live * Women still have a longer life expectancy than men. 这个部落人的平均寿命是40岁。 (= The average life expectancy of the people in this tribe is 40 years.) Collocations: low life expectancy 预期寿命短 high life expectancy 预期寿命长 a life expectancy of 50 years 预期寿命50年 4) (L.5) soar: vi. rise rapidly or to a very high level *Unexpectedly the jet crashed shortly after it soared into the air. (=Industrial unemployment has soared to 40%, which is threatening the social stability.) 5) (L.5) boom: n. a (period of) rapid growth or increase * This countrys economy development has contributed a lot to the boom in world trade. 我们必须要意识到90年代的经济繁荣已经结束了。 (=We have to realize that the economic boom in 90s is over now.) 6) (L.10) entertainment: n. sth., esp. a public performance, that amuses *Las Vegas is one of the biggest entertainment centers in the US. (=Our agency supplies live entertainment for private or corporation parties.) 适当的娱乐对于情感和心理的健康是必要的。 (=Appropriate entertainment is necessary for emotional and psychological health.) 7) (L. 16) formal: a. suitable for official occasions, serious writing, etc. but not for ordinary conversation We should be formal on business occasions, and never call anyone by their first name. 我们在商务场合应该讲究礼仪, 不要对别人直呼其名。 (=You shouldnt use Yours faithfully — its much too formal for th