點擊查看：2018年12月英語六級閱讀理解習題匯總

　　Rather than using custom machine tools to build early models of new parts, Ford is now using 3-D printing technology to design and test its engineers’ latest ideas. The new method allows product developers to have a _1_ in their hands in as little as a week after they create a new design-compared with having to wait three to four months _2_.

　　“We’re building more and more parts every day using this _3_,”says Harold Sears,a technical expert in rapid manufacturing at Ford’s design facility in Dearborn, Mich. Ford’s new hybrid transmission was developed on a 3-D printer that costs about $300,000 and which can turn a pile of aluminum powder into a working prototype in a day or two.

　　While low-cost 3-D printing by consumers and small businesses looks like a market now ready for takeoff, large businesses have already _4_ advanced versions of the technology. The result has been a _5_ improvement in the product-development process across a wide range of industries, including the _6_ of cars, consumer electronics, safety equipment and medical devices.

　　The process has done more than just save time and money. Engineers say rapid prototyping using 3-D printing is producing more _7_, higher-quality products—from custom-fitted bicycle helmets to better-sounding ear buds and loudspeakers.

　　Instead of waiting for tools and parts to come back from outside machine shops or injection, molding houses, product developers on tight _8_ now get more hands-on time to test their models. 3-D printers allow them to test and _9_ more versions of their prototypes—in some cases tripling the number of duplicates of a new product that can be _10_ before being produced on a large scale.

　　A)previously B) thereafter C) process D) elastic

　　E) deadlines F) manufacturing G) significant H) innovative

　　I)ignited J) embraced K) lubricate L) prototype

　　M) refined N) update O) mechanisms

　　答案：

　　1.[L]冠詞a提示空格處應填入名詞。該段概括介紹了 3-D打印這一新技術,首句指出運用新技術建造初期模型，第2句則補充說明該技術的優勢。根據上下文和空格后的in their hands可推知，空格所需名詞應與early models 同義，故選用 prototype

　　2.[A]此處需填人副詞，修飾have to wait...。根據本句內容可知，有了 3-D打印技術之后，等待模具的時間大大縮短，而不像“以前”要等3、4個月，可見此處應選用previously。

　　3.[C] this提示此處應填入名詞，且該名詞在上文有具體所指。上文提到的主要內容是3-D打印這一“新技術”,此處的名詞應該帶有“技術”、“方法”等類似的意思,據此在名詞庫中選用process。

　　4.[J]解答本題需先弄清advanced的詞性。這里advanced是形容詞“先進的”,用于修飾名詞versions。因此空格處應填入過去分詞與have already連用，充當句子謂語。詞庫中embraced“采用”符合語境,說明一些大企 業使用了這種技術。

　　5.[G] a... improvement提示空格處應填人名詞、形容詞或分詞作定語。根據后面提到的這一技術在各行業的應用，可知其影響重大，應選用包含積極意義的詞匯。不定完詞a提示不能選用innovative,詞庫中 significant符合句意。

　　6.[F]定冠詞the提示此處應填入名詞。前面講到福特汽車采用3-D打印技術制造最初模型，可知該技術可運用于汽車制造，詞庫中manufacturing符合句意。

　　7.[H] more...和higher-quality并列作定語修飾products。本段仍然是講3-D技術的優點，故推斷空格是一個褒義詞,innovative符合句意。

　　8.[E]空格應填入名詞，與on tight...構成介詞短語，作后置定語修飾前面的product developers。空格前的tight“緊的”與后面的more hands-on time前后形成對比，由此可見3-D技術出現之前產品研發人員的時間緊迫，deadlines填入文中構成短語on tight deadlines，表示“時間緊迫，限期很短”，符合上下文語境。

　　9.[N]空格前的and表明空格應該是和test并列的動詞原形。根據其后所接的賓語more versions of their prototypes,選用update，意為“研發人員可以利用3-D打印技術不斷測試和更新模具”。

　　10.[M]此處應填入名詞、形容詞或動詞的分詞形式。3-D打印技術主要應用于產品的研發、調整階段，因此產品在正式投人生產前還可以修改。填入空格的詞應包含“修改，調整”之意，動詞refined“精煉;使完善”符合句意。

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