【SEEacellphonecoverthatyoulikeonTaobao?Forgetaboutplacinganorderpayingthebillonlineandwaitingfordaysforittobedeliveredtoyou.Inthenearfutureyou'llbeabletogetitinminutesjustbyhitting"print】-025773查询网问答

【SEEacellphonecoverthatyoulikeonTaobao?Forgetaboutplacinganorderpayingthebillonlineandwaitingfordaysforittobedeliveredtoyou.Inthenearfutureyou'llbeabletogetitinminutesjustbyhitting"print】

更新时间：2024-04-26 21:35:12

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问题描述：

SEEacellphonecoverthatyoulikeonTaobao?Forgetaboutplacinganorderpayingthebillonlineandwaitingfordaysforittobedeliveredtoyou.Inthenearfutureyou'llbeabletogetitinminutesjustbyhitting"print"onyourcomputer.

Youmightfindithardtobelievethatyoucouldactually"print"anobjectlikeyouwouldapicture. Butitisnotthathardtounderstandhowitwouldwork.Justasatraditionalprintersprays(喷)inkontopaperlinebylinemodern3-Dprintersspreadmaterialontoasurfacelayerbylayerfromthebottomtothetopgraduallybuildingupashape.

Insteadofinkthematerialsthe3-Dprinterusesaremainlyplasticresin(树脂)andcertainmetals.Thethinnereachlayeris---fromamillimetertolessthanthewidthofahair--- thesmootherandfinertheobjectwillbe.

Thismaysoundlikeacompletelynewtechnologybutthetruthisthat3-Dprintinghasbeenaroundsincethelate1980s.Backthenitwasbarelyaffordableformostpeoplesofewknewaboutit.

Lastyearthoughsawabigchangeinthe3-Dprintingindustry---printersbecamemuchcheaper.Forexample10yearsagoadesktop3-Dprintermighthavecost£20000(200000yuan)whilenowtheycostonlyabout£1000accordingtotheBBC.

Takenoutofthefactoryandintroducedtomorediverseandcommonuses3-Dprintingcancreatejustaboutanythingyoucanthinkof---flutes(笛子)bikinisjewelryaircraftpartsandevenhumanorgans.InfactscientistsfromCornellUniversityinNewYorkhavejustmadeanartificialearusinga3-DprinteraccordingtoScienceDaily.Thefakeearlooksandactsexactlylikeanaturalone.

Howeveras3-Dprintingbecomesmorecommonplaceitmaybringaboutcertainproblems---suchaspiracy."Onceyoucandownloadacoffeemakerorprintoutanewsetofkitchenutensils(餐具)onyourpersonal3-Dprinterwhowillvisitaretail(零售的)storeagain?"anexpertin3-DprintingtoldForbesNews.Evenmorefrighteningwhatifanyoneintheworldcouldusea3-Dprintertoprintoutafullyfunctioninggun?

1.Accordingtothearticleinthefuturethe3-Dprintingtechnologywill___.

A．enablepeopletomakebetterpurchasesonline

B．beappliedaswidelyinourdai

陈砚回答：

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　　1.C 　　2.B 　　3.C 　　4.A 　　分析：　　本文主要讲述的就是3D打印机在未来的广泛使用，能够改变很多做事的方式方法。　　1.C细节题。根据文章12段Justasatraditionalprintersprays(喷)inkontopaperlinebylinemodern3-Dprintersspreadmaterialontoasurfacelayerbylayerfromthebottomtothetopgraduallybuildingupashape.说明未来的3-D打印机会改变我们生产很多产品的方式，故C正确。　　2.B细节题。根据文章第五段Lastyearthoughsawabigchangeinthe3-Dprintingindustry---printersbecamemuchcheaper.Forexample10yearsagoadesktop3-Dprintermighthavecost£20000(200000yuan)whilenowtheycostonlyabout£1000accordingtotheBBC.说明去年3D打印机变得很便宜了，故B正确。　　3.C总结题。根据最后一段suchaspiracy和anexpertin3-DprintingtoldForbesNews.说明在本段中使用了举例说明的方法来组织这个段落。故C正确。　　4.A主旨大意题。本文主要讲述的就是3D打印机在未来的广泛使用，能够改变很多做事的方式方法。故A正确。　　考点：　　考查科技说明文　　点评：　　本文主要讲述的就是3D打印机在未来的广泛使用，能够改变很多做事的方式方法。此类文章的最大的障碍是词汇以及考生对阅读内容的不熟悉，需要考生在阅读的时候有足够的耐心。要养成在上下文串联中猜测词义的能力，根据上下文中出现的同义词，近义词，反义词，以及词义的解释来理解生词。同时要抓住文章的中心，不要受其他信息的影响。要根据题目及选项以及文章的上下文串联合理的判断推理。