問題詳情

II. Please choose the suitable vocabulary to fill in the blanks. There are 15 choicesprovided in the chart below, and each of the word can only be used once. (10%)    Anyone who doesn't know much about nanotechnology should begin with geckos.By pure 1 , they can hang from a single toe with perfect ease. What keeps themup there, however, is the amazing structure of the skin of the toe rather than a tinyhook-like claw at the end of it.    Under the higher 2 of an electron microscope, the end of each of these hairsis seen to split into hundreds of even tinier nano-hairs, which are able to establishcontact with the molecular structure of the surface the gecko is walking on. Themolecules on the feet and on the surface have areas of slight positive or negative3 that attract each other like mini magnets when they get really close.    To artificially reproduce the same structure of nano-hairs, scientists are nowputting forward a(n) 4 that if any material can be shaped into nano-hairs, theywill have the same properties as those on gecko toes. Hence, an alternative materialwith which to manufacture the stickiest 5 surface ever is what scientists arecurrently looking for.    This is one example of research in the field now known as nanotechnology.Interest in developing technology at this level was largely 6 by RichardFeynman at the beginning of the 1960s. However, it was not until the 1990s that Dr.Eric Drexler, who spurred scientists on through a series of speeches and a bookentitled Engines of Creation: The Coming Era of Nanotechnology, coined the “nano”7 .     The scientists working on the geckos have 8 an enormously wide range ofpossible applications for the kind of adhesive nanotechnology that they will develop.The one that will make the biggest 9 in the media will be the gloves and theboots that will allow rock-climbers to take their sport to hitherto undreamed ofheights. But the technology could also be used in surgery to keep the edges ofwounds together without the need for 10 . There will also be a huge potential inthe manufacturing sector to stick millions of components together tighter than everbefore without glues or screws.    (AB) electrode (AC) orthodoxy (AD) stitches (AE) eradicated (BC) catchphrase  (BD) momentum (BE) ignited (CD) anesthetic (CE) envisaged (DE) magnification(ABC) counterfeit (ABD) coincidence (ABE) splash (BCD) adhesion (BCE) hypothesis
【題組】1

參考答案

答案：B,C,D
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)

用户評論

【用戶】b6832509

【年級】高三上

【評論內容】(BCD) adhesion (n)黏著力           adhesive (a)有黏性的 (n)黏著劑