大学英语第四册单元2词汇

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1、DownloadingFilesUnit2Unit2Book4TechnologyandHappinessWordsandExpressions1)(L.3)gross:a.general,total*grossdomesticproduct(GDP)国内生产总值(=Hisgrossannualincome,beforetax,isjust$12,000.)这个包裹连盒子总重量是十公斤。(=Thegrossweightofthepackageis10kilos,includingthebox.)2)(L.3)trip

2、le:v.(causeto)growtothreetimestheamountornumber*Apartmentswithgenerousspacesinthisareawilltripleinvalue.新设备的引进使我们的产量增加到了三倍。(=Theintroductionofnewequipmenthastripledtheoutput.)(=WorldfuelconsumptionhastripledsinceWorldWarⅡ.)3)(L.5)lifeexpectancy:thelengthoftimet

3、hatapersonoranimalisexpectedtolive*Womenstillhavealongerlifeexpectancythanmen.这个部落人的平均寿命是40岁。(=Theaveragelifeexpectancyofthepeopleinthistribeis40years.)Collocations:lowlifeexpectancy预期寿命短highlifeexpectancy预期寿命长alifeexpectancyof50years预期寿命50年4)(L.5)soar:vi.riser

4、apidlyortoaveryhighlevel*Unexpectedlythejetcrashedshortlyafteritsoaredintotheair.(=Industrialunemploymenthassoaredto40%,whichisthreateningthe9DownloadingFilesUnit2socialstability.)5)(L.5)boom:n.a(periodof)rapidgrowthorincrease*Thiscountry'seconomydevelopmenthas

5、contributedalottotheboominworldtrade.我们必须要意识到90年代的经济繁荣已经结束了。(=Wehavetorealizethattheeconomicboomin90sisovernow.)6)(L.10)entertainment:n.sth.,esp.apublicperformance,thatamuses*LasVegasisoneofthebiggestentertainmentcentersintheUS.(=Ouragencysuppliesliveentertainm

6、entforprivateorcorporationparties.)适当的娱乐对于情感和心理的健康是必要的。(=Appropriateentertainmentisnecessaryforemotionalandpsychologicalhealth.)7)(L.16)formal:a.suitableforofficialoccasions,seriouswriting,etc.butnotforordinaryconversationWeshouldbeformalonbusinessoccasions,and

7、nevercallanyonebytheirfirstname.我们在商务场合应该讲究礼仪,不要对别人直呼其名。(=Youshouldn'tuse"Yoursfaithfully"—it'smuchtooformalforthiskindofletter.)Collocations:formalcurriculum正式课程formaldress礼服formaleffectiveness正式生效formalstyle正式文体8)(L.16)survey:n.ageneralexaminationorstudy,esp.

8、carriedoutbyaskingpeoplequestions最近的调查发现学生希望在课堂上有更多的时间练习口语。(=Therecentsurveyfoundthatstudentswantedtospendmoretimepracticingspeakinginclass.)9DownloadingFilesUnit2*Inasurvey