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1、2023年12月英语六级选词填空练习题2023年12月英语六级选词填空练习题Questions 36 to 45 are based on the following passage.Today nanotechnology (纳米技术) is still in a formative phase. Yet it is maturing rapidly. Between 1997 and 2023, investment in nanotech research and development by gover_ents around the world _36_from $ 432 mill
2、ion to about $ 4. 1 billion, and corresponding industry investment exceeded that of gover_ents by 2023. By 2023, products incorporating nanotech will contribute approximately $1 trillion to the global economy.Descriptions of nanotech typically characterize it purely in terms of the minute size-assem
3、blies between the size of an atom and about 100 molecular diameters (分子直径). That_37_makes it sound as though nanotech is merely looking to use infinitely smaller parts than conventional engineering. But rearranging the atoms and molecules leads to new_ 38_ One sees a transition between the fixed beh
4、avior of individual atoms and molecules and the adjustable behavior of collectives. Thus, nanotechnology might better be viewed as the _39_ of quantum theory (量子论) and other nano specific phenomena to fundamentally control the properties and behavior of matter.The second stage, which began in 2023,
5、focuses on active nanostructures that change their size, shape, conductivity or other properties during use. New drug delivery particles could release therapeutic(治疗的) molecules in the body only after they reached their_40_diseased tissues. Electronic ponents such as transistors and lifiers with ada
6、ptive functions could be reduced to single, plex molecules.After 2023 - 2023, the field will include molecular nanosystems. Whereas biological systems are water based and markedly temperature sensitive, these molecular nanosystems will be able to operate in a far wider range of enviro_ents and shoul
7、d be much faster. puters and robots could be reduced to_43_small sizes. New interfaces linking people directly to electronics could change telemunications. Over time, therefore, nanoteclmology should benefit every industrial sector and health care field. Nanotech does, however, pose new challenges t
8、o risk governance as well. Internationally, more needs to be done to collect the scientific information needed to resolve the _44_and to install the proper regulatory oversight. Helping the public to _45_nanotech soberly in a big picture that retains human values and quality of life will also be ess
9、ential for this powerful new discipline to live up to its astonishing potential.A.ambiguitiesB.applicationC.artificialD.pulsoryE.cultivateF.depictionG.extraordinarilyH.illuminateI.indignationJ.ingeniousK.instantaneouslyL.perceiveM.propertiesN.soaredO.targeted语篇分析选项归类36.N)。详解：根据句子构造可知，空格处缺少动词作谓语。由空格后
10、的from$432 million to about$4.1 billion可知，世界各国政府对纳米技术研发的投资从l997年的4.32亿美元猛增到2023年的41亿美元。N)soared“猛增”符合句意，故为答案。37.F)。详解：根据空格后的makes可推断此处缺少名词作主语。上文的assemblies between the size of an atom and about l00 molecular diameters是对纳米的描绘，故F) depiction“描绘”为答案。38.M)。详解：根据空格前的new可推断此处缺少名词。结合句意：但是，重组原子和分子会产生很多新_。M)pr
11、operties“性能”符合句意，故为答案。39.B)。详解：根据空格前的the和空格后的of可知，该空缺少名词。结合句意：最好把纳米 技术视为量子论和其他纳米类现象的而最终成为控制物质属性和活动的技术。B) application“应用”符合句意，故为答案。40.O)。详解：由空格前their和空格后的diseased tissues可知，该空缺少形容词作定语。结合句意：只有当新型送药粒子到达_疾病组织的时候，才能在身体中释放治疗分子。这些疾病组织应该就是要治疗的目的，故0) targeted“目的的”为答案。41.E)。详解：根据空格前的will可推断此处缺少动词作谓语。空格后的exper
12、tise“专门的知识和技能”可以与E)cultivate“培养(某种技能)”搭配使用，故为答案。42.C)。详解：根据空格后的0rgans可推断此 处缺少形容词作定语。artificial“人造的”与空格后的organs搭配使用，意为“人造器官”，与上文的Medicine could employ such systems to improve the tissue patibility of implanks “医学界可以采用这类系统去改善植入物的组织兼容性”相照应，故c)为答案。43.G)。详解：根据空格后的small sizes可知，该空缺少副词。由空格前的be reduced to 可
13、推知，这种尺寸应该是特别小的，故G) extraordinarily“特别地”为答案。44.A)。详解：由空格前的the可知，该空缺少名词作宾语。空格所在的部分needed to resolve the and to install the proper regulatory oversight被用来修饰the scientific information，科学信息可以解决ambiguities“模糊不清的问题”，故A)为答案。45.L)。详解：由句子构造可知，该空缺少动词。结合句意：帮助公众清醒、全面地_纳米技术，要让人们意识到在纳米技术下的生活仍然保持人类的价值观和生活特征，这也是充分 发挥纳米技术的潜能所必需要做的事情。L) perceive“感知”符合句意，故为答案。第 6 页 共 6 页
