全新版大学英语4 Unit 2 词汇详解

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1、Unit2TextA1.lucrative:adj.producingmuchmoney;profitableThisisalucrativebusiness.我们和一家美国公司做大米进口的生意，赚了些钱WemadealucrativebusinesswiththeAmericancompanyonriceimports.2.manufacture:vt.1.makegoodsonalargescaleusingmachineryThisfirmmanufacturescars.在工厂制造产品tomanuf

2、acturegoodsinafactory2.invent;makeupYou’llhavetomanufacturesomekindofexcuse.她编了一段谎话来掩盖事实。Shemanufacturedafalsestorytohidethefacts.辨析：manufacture&make这两个词都是动词，都有制造之意。manufacture使用范围较窄，既可指通过使用工业机械，亦指粗制滥造以一种机械的方式创作、制作或完成。例如：Hisbooksseemtohavebeenmanufacturedr

3、atherthancomposed.他的作品像是被机器加工出的，而不是创作的。make通用且非正式，可用于所有的制造过程。例如：Hemadeamodelplaneoutofwood.他用木头做了一架模型飞机。3.approximately:adv.moreorlessexactlyThecaraccidenthappenedatapproximately7:45a.m..approximate:adj.fairlycorrectoraccuratebutnotcompletelysoTheapproxima

4、tenumberofdemonstratorsinfrontofthemunicipalofficebuildingwas900.大概的时间是三点钟Theapproximatetimeisthreeo’clock.4.eliminate:vt.remove,esp.sb./sth.thatisnotwantedorneeded;getridofThepolicehaveeliminatedalltheothersuspects.她已被取消了参加游泳比赛的资格。Shehasbeeneliminatedfrom

5、theswimmingrace.Pattern:eliminatesth.fromsth.Canweevereliminatehungerfromtheworldoneday?5.intheair:intheearth’satmosphere;uncertain,notyetdecidedThereisastrangesmellintheair.Hundredsofbirdssuddenlyroseintheair.我们的计划尚未确定。Ourplansarestillintheair.6.startup:b

6、eginorbeginworking,running,happening,etc.Putthekeyintheignitionandturnittostartthecarup.玛丽发动引擎，向她的家乡驶去。Marystarteduptheengineanddroveforherhometown.7.alert:1.vt.warnsb.thattheremaybedanger,trouble,etc.Pattern:alertsb.tosth.Thedoctoralertedmetothedangersofs

7、moking.警察警告我有危险。Thepolicemanalertedmetothedanger.2.adj.attentive;watchfulPattern:bealerttodangerThesquirrelsarequitealerttodangers.辨析：alert&attentivealert指思维敏捷而高度集中，注意着可能发生的事件，尤其是危险的、恐怖的事件，并迅速做出反应。例如：Ahunting-dogmustbealert.猎犬必须很机警。Theguardswerealerttoanyd

8、anger.哨兵警惕着一切危险的情况。attentive强调能够把注意力集中于某事上而不分心、不走神。例如：Iwishyouwouldbemoreattentivetowhatyourteacherhastoldyou.希望你能多注意老师对你说的话。Hewasabsolutelyattentivetoresearchintothecauseofcancer.他专心致志研究癌症的起因。3.n.aconditiono