2.Steelandconcretearethemostwidelyusedstructuralmaterialstoday.(钢和混凝土是当前广泛使用的结构材料。) 3.TheLetterofAgreementisapromiseoftheContractortotheEmployer.(协议书是承包商对业主的承诺。) 4.Eachunitpriceshouldincludematerialcost,labourcostandmachinecost.(每个单价应包括材料费、人工费、机械费。) 5.Nowthepopularinterestininvestmentisinfrastructureandhousingdevelopmentprojects.(现在的投资热点是基础设施工程和住宅开发工程。) 6.Styleoflampsshouldmatchotherdecoration.(灯的样式应与其他装饰相一致。) 7.Thelightfixturesshouldbefunctionalaswellasdecorative.(灯具应既体观功能又具有装饰性。) 8.Wecannotexpectastablesuperstructurewithoutasolidfoundation.(没有牢固的基础，难以想象会有稳定的上部结构。) 9.Constructionisthetranslationofadesigntoreality.(施工就是把设计变为现实。) 10.Wesupplyrebarwithvariousdiametersandstrength.(我们销售不同的直径和强度的钢筋。) 11.Isawsomeworkersworkinginthesite.(我看到工人们在工地干活。) 12.Totranslatethisideaintorealityneedshardwork.(把这一想法变为现实需要艰苦的劳动。) 13.Itistheindividualtouchthatmakesahouseahome.(将房屋布置成个家，各人有各人的做法。) 14.Themanagerfoundtheprojectmuchbehindtheschedule.(经理发现工程进度落后于计划进度。) A.aftertheconcretehasset B.assoonastheconcretebeginstoset C.whenevertheconcreteisplaced D.beforetheconcreteisplaced 2.Theconcretemustthereafterbekeptcontinuallymoistfor(A). A.atleast14days B.only14days C.about14days D.lessthan14days 3.Tokeepconcretemoist,(C). A.wecanonlyspreadsomesandorburlapoverthesurface. B.wespray(喷)?somewateroverthesurface. C.weshouldspraywateronthesurfacefrequently. D.weshouldspraywatermixedwithsandoverthesurface. 4.Aftertheconcreteisplaced,(B) A.itshouldbecoveredforalongtime. B.itmustbecoveredtoavoidthestrongsunlight. C.itshouldbecoveredfor3days. D.itmaybecoveredforthefirst3daysifpossible. 5.Specialcuringcompounds(B) A.canonlybeusedfromthemomenttoconcretefirstbeginstoset. B.canbeusedevenaftertheconcretehasbeenplacedinservice. C.canalwaysbeusedontheconcretehighway. D.canbesprayedonanything.