今天作着题忽然间碰到了另外一道题或许可以解答你的疑惑:OG10-234题,请注意E选项及解释 234. The physical structure of the human eye enables it to sense light of wavelengths up to 0.0005 millimeters; infrared radiation, however, is invisible because its wavelength--0.1 millimeters--is too long to be registered by the eye. (A) infrared radiation, however, is invisible because its wavelength--0.1 millimeters--is too long to be registered by the eye (B) however, the wavelength of infrared radiation--0.1 millimeters--is too long to be registered by the eye making it invisible (C) infrared radiation, however, is invisible because its wavelength--0.1 millimeters--is too long for the eye to register it (D) however, because the wavelength of infrared radiation is 0.1 millimeters, it is too long for the eye to register and thus invisible (E) however, infrared radiation has a wavelength of 0.1 millimeters that is too long for the eye to register, thus making it invisible Choice A, the best answer, is clear, idiomatic, and grammatically correct. In B, the misplaced participial phrase making it invisible modifies eye rather than wavelength, thus producing a confusing statement that distorts the meaning. In C, D, and E the use of the second it is so imprecise as to be confusing. Furthermore, in D, and thus invisible incorrectly modifies wavelength rather than infrared radiation. Choice E produces an illogical statement by using a restrictive clause introduced by that where a comma followed by the nonrestrictive "which" is required: a wavelength of 0.1 millimeters that is too long nonsensically suggests that not all wavelengths of 0.1 millimeters are too long for the eye to register. 讨论贴地址:http://forum.chasedream.com/dispbbs.asp?BoardID=23&ID=29519 |