[求助]OG第62题

amo

    

62. Geologists believe that the warning signs for a major earthquake may include sudden fluctuations in local seismic activity, tilting and other deformations of the Earth's crust, changing the measured strain across a fault zone, and varying the electrical properties of underground rocks.

(A)     changing the measured strain across a fault zone and varying

(B)     changing measurements of the strain across a fault zone, and varying

(C)     changing the strain as measured across a fault zone, and variations offficeffice" />

(D)     changes in the measured strain across a fault zone, and variations in

(E)         changes in measurements of the strain across a fault zone, and variations among

D, the best choice, describes the warning signs in parallel phrases. Despite surface appearances, the nouns changes and variations are parallel with tilting, but the verbal forms changing and varying in A, B, and C are not: tilting, one of the deformations of the Earth's crust, is used here as a noun that is parallel to fluctuations, whereas changing and varying are used as verbs indicating some action undertaken. Moreover, these verbs are used incorrectly because the sentence mentions no subject that is performing these actions.

    

这一部分的句子结构是什么样的？tilting and other deformations of the Earth's crust, changing the measured strain across a fault zone, and varying the electrical properties of underground rocks.

tilting应该是名词还是动名词，如果是动名词的话，不是可以和后面的changing, varying构成平行结构吗？

Snazzy

a noun is always preferred to a gerund unless there is no noun. 'tilt' doesn't have the noun form, so gerund form has to be employed. but both 'change' and 'vary' have noun forms. therefore, 'changing' and 'varying' are not good.

madtears

tilting and other deformations


tilting is a noun