og47 d选项的解释不理解

erinlyw

47. Displays of the aurora borealis, or "northern lights," can heat the atmosphere over the arctic enough to affect the trajectories of ballistic missiles, induce electric currents that can cause blackouts in some areas and corrosion in north-south pipelines.

(A)  to affect the trajectories of ballistic missiles, induce

(B)  that the trajectories of ballistic missiles are affected, induce

(C)  that it affects the trajectories of ballistic missiles, induces

(D)  that the trajectories of ballistic missiles are
            affected and induces

(E)  to affect the trajectories of ballistic missiles and
            induce

The use of the phrasing can heat... enough to affect in A and E is more idiomatic than the use of the subordinate clause beginning with that in B, C, and D. Also, B produces an illogical and ungrammatical statement by making induce parallel with the verb heat rather than with the appropriate form of the verb affect; C lacks agreement in using the singular pronoun it to refer to the plural noun displays; and D is faulty because induces cannot fit grammatically with any noun in the sentence.
            Choice A incorrectly separates the two infinitives to affect and [to] induce with a comma when it should compound them with and, as does E, the best choice.

蓝色字体关于d选项，为什么这么说呢？nn帮帮我啊。

mengtingw

就是induces是单数动词，而这个从句的主语trajectories是复数，不搭配