Water的用法1.Toholdwater站得住脚,说得通按字面解释,Toholdwater当然可以说是“不让水漏出来”。但是,它还可以引申为指某人的论点、借口、理由站得住脚。美国人经常说:"Thatexcusesimplydoesn'tholdwater."意思是:那个借口根本站不住脚。Severalofhissuggestionsaboutchangesinthegovernmentsimplydon'tholdwater.他有关政府改革的意见中有几条根本说不通。2.Likewateroffaduck'sback毫无意义鸭子身上的毛就像雨衣一样,水在上面呆不住,一下全滑掉了。因此,likewateroffaduck'sback指的就是某件事毫无意义,不起作用。Thedoctorstellusit’sdangeroustosmoke,butsuchgoodadvicerollsoffsomepeoplelikewateroffaduck'sback.医生都告诉我们抽烟对身体是有害的。可是,这种合理的建议对于有些人来说就像耳边风一样,毫无作用。”3.Tomakesomeone’smouthwater让某人流口水让某人嘴里流水自然就是让某人流口水的意思了。Theroastducksthatrestaurantservesismyfavoritedish.EverytimeIthinkaboutit,itmakesmymouthwater.我最喜欢吃那个饭馆的烤鸭。每当我想起它我就会流口水。4.water不可数water表示“水”,是物质名词,不可数。如:Thewaterinthelakeissoclearthatyoucanseethebottom.PleaseremembertowatertheplantswhileI’maway.(v)Aswaterbeginstoboil,bubblesriseeverfastertothesurface.Thewaterinthelakeisnotparticularlydeep,averagingabout12metres.Ablockinthepipewaspreventingthewaterfromcomingthrough.Ifyougivewatertoasmallbabytodrink,youhavetoboilitfirst.We’lltaketheboatoutintodeepwaterwherewecandive.5、water用复数但是,注意,water虽然表示“水”时不可数,但在某些特殊情况下可用复数。如:(1).表示“水域”“水体”时,可以用复数。如:Thefishareonsalefromourowncoastalwaters.Brackishwatersgenerallysupportonlyasmallrangeoffaunas.Theillfatedshipwassentoffcourseintoshallowwatersandrammedbyanothervessel.(2).表示某国的“近海”“海域”“领海”时,可以用复数。如:Thegovernmentisallowingtheareasofinshorecoastalwaterstobeexploredforoilandgas.Thetwocountriesareindisputeovertheboundariesoftheircoastalwaters.Othernationsareforbiddentofishthewaterswithin200milesofthecoast.(3).表示“矿泉水”“泉水”“喷泉水花”时,可以用复数。如:Wedrinktablewaters.Agreatpoemisafountainforeveroverflowingwiththewatersofwisdomanddelight.注意,take[drink]thewaters为固定搭配,指喝矿泉水治疗或到矿泉胜地疗养。如:Heistaking[drinking]thewatersatBath.(4).表示“洪水”等大量的水时,可以用复数。如:Thefloodwaterssubsided.洪水退了。Floodwatersswepteverythingfromtheirpath.Peoplespokeoftheirfearasthefloorwatersrose.DCS:Thedambrokebecausetherewasnooutletforthefloodwaters.(5).表示几条不同河流或海域的水,习惯上要用复数。如:Thewatersofthetworiversmingled(together)toformoneriver.(6).在某些固定表达中,可以用复数。insmoothwater(s)进展顺利,一帆风顺pouroilontroubledwaters平息风波,作和事佬,调停争端fishinmuddywaters趁火打劫,混水摸鱼fishintroubledwaters混水摸鱼population的用法1.population直接作主语时意为“人口数”,这时谓语动词要用单数形式。例如:Thepopulationofthiscityissixmillion.这个城市的人口是600万。部分人口(分数、百分数)作主语谓语用复数2.population多以单数形式出现,指某个国家、地区或城市的人口。若以复数形式出现,则指世界不同地区的人口。例如:Manypartsoftheworldhavebecomedeserts.Theyoncehadlargepopulationsandproducedplentyofcrops.世界上许多地区曾经人口众多,五谷丰登,而今却成了沙漠。3.表示“某地有多少人口”有两种表达方式:1)Thepopulationof+某地+be+数词(该句型中population前用冠词the。)2)某地+hasapopulationof+数词+(people)(该句型中population前用冠词a。)例如:ThepopulationofChinaisabout1.3bi...