英語六級詞匯考前指導(dǎo)試題附解析2017
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Questions 36 to 45 are based on the following passage.
Today nanotechnology (納米技術(shù)) is still in a formative phase. Yet it is maturing rapidly. Between 1997 and 2005, investment in nanotech research and development by governments around the world ____36____from $ 432 million to about $ 4. 1 billion, and corresponding industry investment exceeded that of governments by 2005. By 2015, 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-assemblies between the size of an atom and about 100 molecular diameters (分子直徑). 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 behavior of individual atoms and molecules and the adjustable behavior of collectives. Thus, nanotechnology might better be viewed as the ____39____ of quantum theory (量子論) and other nano specific phenomena to fundamentally control the properties and behavior of matter.
The second stage, which began in 2005, focuses on active nanostructures that change their size, shape, conductivity or other properties during use. New drug delivery particles could release therapeutic(治療的) molecules in the body only after they reached their____40____diseased tissues. Electronic components such as transistors and amplifiers with adaptive functions could be reduced to single, complex molecules.
Starting around 2010, workers will ____ 41____expertise with systems of nanostructures, directing large numbers of intricate components to specified ends. One application could involve the guided self assembly of nanoelectronic components into three dimensional circuits and whole devices. Medicine could employ such systems to improve the tissue compatibility of implants, or perhaps even to build ____ 42____organs.
After 2015 - 2020, 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 environments and should be much faster. Computers and robots could be reduced to____43____small sizes. New interfaces linking people directly to electronics could change telecommunications. Over time, therefore, nanoteclmology should benefit every industrial sector and health care field. Nanotech does, however, pose new challenges to 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 essential for this powerful new discipline to live up to its astonishing potential.
A.ambiguities
B.application
C.artificial
D.compulsory
E.cultivate
F.depiction
G.extraordinarily
H.illuminate
I.indignation
J.ingenious
K.instantaneously
L.perceive
M.properties
N.soared
O.targeted
語篇分析
選項歸類
36.N)。詳解：根據(jù)句子結(jié)構(gòu)可知，空格處缺少動詞作謂語。由空格后的from$432 million to about$4.1 billion可知，世界各國政府對納米技術(shù)研發(fā)的投資從l997年的4.32億美元猛增到2005年的41億美元。N)soared“猛增”符合句意，故為答案。
37.F)。詳解：根據(jù)空格后的makes可推斷此處缺少名詞作主語。上文的assemblies between the size of an atom and about l00 molecular diameters是對納米的描述，故F) depiction“描述”為答案。
38.M)。詳解：根據(jù)空格前的new可推斷此處缺少名詞。結(jié)合句意：但是，重組原子和分子會產(chǎn)生很多新_____。M)properties“性能”符合句意，故為答案。
39.B)。詳解：根據(jù)空格前的the和空格后的of可知，該空缺少名詞。結(jié)合句意：最好把納米 技術(shù)視為量子論和其他納米類現(xiàn)象的而最終成為控制物質(zhì)屬性和活動的技術(shù)。B) application“應(yīng)用”符合句意，故為答案。
40.O)。詳解：由空格前their和空格后的diseased tissues可知，該空缺少形容詞作定語。結(jié)合句意：只有當(dāng)新型送藥粒子到達(dá)_____疾病組織的時候，才能在身體中釋放治療分子。這些疾病組織應(yīng)該就是要治療的目標(biāo)，故0) targeted“目標(biāo)的”為答案。
41.E)。詳解：根據(jù)空格前的will可推斷此處缺少動詞作謂語�？崭窈蟮膃xpertise“專門的知識和技能”可以與E)cultivate“培養(yǎng)(某種技能)”搭配使用，故為答案。
42.C)。詳解：根據(jù)空格后的0rgans可推斷此 處缺少形容詞作定語。artificial“人造的”與空格后的organs搭配使用，意為“人造器官”，與上文的Medicine could employ such systems to improve the tissue compatibility of implanks “醫(yī)學(xué)界可以采用這類系統(tǒng)去改善植入物的組織兼容性”相呼應(yīng)，故c)為答案。
43.G)。詳解：根據(jù)空格后的small sizes可知，該空缺少副詞。由空格前的be reduced to 可推知，這種尺寸應(yīng)該是特別小的，故G) extraordinarily“特別地”為答案。
44.A)。詳解：由空格前的the可知，該空缺少名詞作賓語�？崭袼诘牟糠�…needed to resolve the and to install the proper regulatory oversight被用來修飾the scientific information，科學(xué)信息可以解決ambiguities“含糊不清的問題”，故A)為答案。
45.L)。詳解：由句子結(jié)構(gòu)可知，該空缺少動詞。結(jié)合句意：幫助公眾清醒、全面地_____納米技術(shù)，要讓人們意識到在納米技術(shù)下的生活仍然保持人類的價值觀和生活特征，這也是充分 發(fā)揮納米技術(shù)的潛能所必須要做的事情。L) perceive“感知”符合句意，故為答案。
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