一个正确选项的逻辑问题...

jimmyhou520

1.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

这题的答案是A....


但是A选项的结构式Sth is too...to be done，那么sth就是done动作的承受者了~
在这里就是“波长（wavelengths）是可以被观察到的”...但是能观察到的应该是红外线（infrared radiation）才对啊！


反观C选项，its指代infrared radiation，相同句子中的代词指代同一个名词，所以后面的it也就指代的是infrared radiation，
for the eye to register it，不是更清晰明白么？？？


此题困惑~忘NN们来解答下吧！！

justinfang

C选项最后这个it到底指代波长还是红外线，其实是会引起歧义的
还有，比如meat is good because its tissue is soft for human to digest it.   it到底指代肉还是肉的组织?
sth is ... for sb to do, 最后是不能加代词的呀。