2013年职称英语理工类B级阅读理解练习4_第2页

　　词汇：
　　invisibility/invizE5biliti/n.看不见，无形 spectrum/5spektrEm/n.光谱
　　cloak/klEuk/斗篷，披风 infrared/5infrE5red/adj.红外线的
　　microwave/5maikrEuweiv/n.微波 ultraviolet ray 紫外线
　　reconstruct/5ri:kEn5strQkt/v.重建 gamma ray 伽马射线
　　radiant/5reidjEnt/adj.辐射的 wavelength/5weivleNW/n.波长
　　electromagnetic/IlektrEJ5mA^nItIk/adj.电磁的coaster/5kEustE(r)/n.托盘，垫子
　　练习：
　　1.Harry Potter is mentioned in the passage，because scientists
　　Acan now make an invisible cloak of the same kind as he uses.
　　Btry to make an invisible cloak of the same kind as he uses.
　　Ctry to invent a device Similar in idea to the invisible cloak he uses.
　　Dknow that it is possible to make an invisible cloak of the same kind.
　　2.What is true of microwaves?
　　ATheir wavelengths are shorter than those of visible light.
　　BTheir wavelengths are longer than those of visible light.
　　CThey are different from visible light as they are a kind of radiant energy.
　　DThey are visible to the human eye.
　　3.What is NOT true of the invisibility device?
　　AIt is made of a special material with unusual ability.
　　BMicrowaves bounce off it when they strike it.
　　CMicrowaves pass through it when they strike it.
　　DIt bends the microwaves all the way around until they reach the opposite side.
　　4.What does the word “coaster” mean in the passage?
　　AA disk or plate placed under a drinking glass to protect a table top.
　　BA vessel engaged in coastal trade.
　　CA roller coaster.
　　DA resident of a coastal area.
　　5.Harry Potter’s invisibility cloak doesn’t have any real competition yet，because
　　Ascientists have not found out how his cloak works.
　　Bthe cloaking device is a total failure.
　　Cthe cloaking device works only for microwaves.
　　Dthe cloaking device works only for visible light.