分析 本文属于说明文阅读,作者通过这篇文章主要向我们描述了3D打印技术正特别使用在建汽车模型或汽车零件上.
解答 71.B.细节理解题.根据第一段Instead,Strati's designers used a technology called 3-D printing.It created those parts of the car in one piece,from the ground up.Strati的设计师使用3D打印技术.它完整无损地创造出汽车的那些部分,从头到尾.故选B.
72.D.细节理解题.根据第三段But these machines used to be so expensive that only large companies could afford them.这些机器过去是如此昂贵,结果只有大的公司负担得起.故选D.
73.B.词义猜测题.根据第四段mechanical arm moves a nozzle from one side to another,back and forth.一个机械臂从一边到另一边,前后移动一个部位.可知是3D打印机的一个部件.故选B.
74.A.推理判断题.根据倒数第二段Additive manufacturing often is slow and expensive.It also may produce materials that are unreliable,Love says.So for two years,his team searched for ways to make 3-D printing better.附加的制造业经常慢而贵.它也生产不可靠的材料.所以两年来,他的团队寻找3D打印技术更好的方法.故选A.
75.D.细节理解题.根据倒数第二段Strati's designers used a technology called 3-D printing.It created those parts of the car in one piece,from the ground up.Strati的设计师使用3D打印技术.它完整无损地创造出汽车的那些部分,从头到尾.根据第八段中Right now,the technology is particularly useful for building models of cars or car parts.目前,这项技术正特别使用在建汽车模型或汽车零件上.故选D.
点评 考察学生的细节理解和推理判断能力,做细节理解题时一定要找到文章中的原句,和题干进行比较,再做出正确的选择.在做推理判断题不要以个人的主观想象代替文章的事实,要根据文章事实进行合乎逻辑的推理判断.
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