8. Lacking information about energy use, people tend to overestimate the amount of energy used by equipment. such as lights, that are visible and must be turned on and off and underestimate that used by unobtrusive equipment, such as water heaters. (A) equipment, such as lights, that are visible and must be turned on and off and underestimate that (B) equipment, such as lights, that are visible and must be turned on and off and underestimate it when (C) equipment, such as lights, that is visible and must be turned on and off and underestimate it when (D) visible equipment, such as lights, that must be turned on and off and underestimate that (E) visible equipment, such as lights, that must be turned on and off and underestimate it when
Choices A and B incorrectly use the plural verb are with the singular noun equipment. In B, C, and E, when used by does not parallel amount... used by and nonsensically suggests that the people are used by the equipment. D, the best choice, correctly parallels the amount... used by with that used by, in which that is the pronoun substitute for amount. Moreover, D solves the agreement problem of A and B by omitting the to be verb used with visible and placing visible before equipment', the phrase visible equipment is also parallel with unobtrusive equipment.
问题疑惑: "and nonsensically suggests that the people are used by the equipment. " 从何而来呢,我看不太懂. 谢谢谢谢!! |