新概念英语第四册第十五单元语法和句型(教学用).doc

《新概念英语第四册第十五单元语法和句型(教学用).doc》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、新概念英语第四册第十五单元语法和句型Lesson15Secrecyinindustry工业中的秘密Twofactorsweighheavilyagainsttheeffectivenessofscientificinindustry.Oneisthegeneralatmosphereofsecrecyinwhichitiscarriedout,theotherthelackoffreedomoftheindividualresearchworker.Insofarasanyinquiryisasecretone,itnaturallylimitsallthosee

2、ngagedincarryingitoutfromeffectivecontactwiththeirfellowscientistseitherinothercountriesorinuniversities,oreven,oftenenough,inotherdepartmentsofthesamefirm.Thedegreeofsecrecynaturallyvariesconsiderably.Someofthebiggerfirmsareengagedinresearcheswhichareofsuchgeneralandfundamentalnature

3、thatitisapositiveadvantagetothemnottokeepthemsecret.Yetagreatmanyprocessesdependingonsuchresearcharesoughtforwithcompletesecrecyuntilthestageatwhichpatentscanbetakenout.Evenmoreprocessesareneverpatentedatallbutkeptassecretprocesses.Thisappliesparticularlytochemicalindustries,wherechan

4、cediscoveriesplayamuchlargerpartthantheydoinphysicalandmechanicalindustries.Sometimesthesecrecygoestosuchanextentthatthewholenatureoftheresearchcannotbementioned.Manyfirms,forinstance,havegreatdifficultyinobtainingtechnicalorscientificbooksfromlibrariesbecausetheyareunwillingtohavethe

5、irnamesenteredashavingtakenoutsuchandsuchabookforfeartheagentsofotherfirmsshouldbeabletotracethekindofresearchtheyarelikelytobeundertaking.(NCEBookFour)【语法点】平行结构句第二分句中的省略【课文原句】Oneisthegeneralatmosphereofsecrecyinwhichitiscarriedout,theotherthelackoffreedomoftheindividualresearchworker

6、.【闯关例句】我们的教室在二楼，他们的在三楼。她教中学，她的丈夫教大学。布景很漂亮，演技也很好。读书使人知识渊博；谈论使人处事机敏；写作使人判断精准。（FrancisBacon）有些书宜浅尝；有些书宜狼吞；有些则宜细嚼之后消化之。（FrancisBacon）人欺我一次，此人可耻；欺我两次，我可耻。如果你是主人，偶尔要装瞎；如果是佣人，偶尔要装聋。有一个星期一我们进行了检查。詹妮在白天，我是在下班以后。勤勉可保持身体壮健，头脑清晰，心理健全，钱包饱胀。检验黄金者炉火，检验女人者黄金，检验男人者女人。他的建议让约翰高兴，但是让玛丽生气。他是1989年的冠军，而鲍勃是1

7、990年的冠军。汤姆学历史，我则学电脑。【语法点】either…or引出的平行结构【课文原句】Insofarasanyinquiryisasecretone,itnaturallylimitsallthoseengagedincarryingitoutfromeffectivecontactwiththeirfellowscientistseitherinothercountriesorin3universities,oreven,oftenenough,inotherdepartmentsofthesamefirm.【闯关例句】Instead,wemustrel

8、yeith