请问大全section3-15

15.   By installing special electric pumps, farmers’ houses could be heated by the warmth from cows’ milk, according to one agricultural engineer.

(A) farmers’ houses could be heated by the warmth from cows’ milk, according to one agricultural engineer

(B) the warmth from cows’ milk could be used by farmers to heat their houses, according to one agricultural engineer

(C) one agricultural engineer reports that farmers could use the warmth from cows’ milk to heat their houses

(D) farmers, according to one agricultural engineer, could use the warmth from cows’ milk to heat their houses（D）

(E) one agricultural engineer reports that farmers’ houses could be heated by the warmth from cows’ milk请问E为什么不对啊？为什么不能说是engineer去installing pumps了呢？

三点：

1. install的动作发起人是engineer不合常理，engineer应该是design什么的，不会亲自去安装。就是说，install不是engineer干的活。（估计他也不会）


2. D的后半句的主动明显比E的被动语态好


3. 通过主语谓语间的逻辑意思判断

• D：engineer说，farmer安装特殊了的pumps，就能够用牛奶的热量去加热房子（逻辑意思清晰）


• E：engineer通过安装特殊的pumps，说农民的房子能用牛奶的热量去加热。（前后逻辑意思混乱似乎是说，如果engineer不安装的话，就不会说农民的house就不能用牛奶的热量加热了）

你再仔细揣摩一下。