134. Recently implemented "shift-work equations" based
on studies of the human sleep cycle have reduced
sickness, sleeping on the job, fatigue among shift
workers, and have raised production efficiency in
various industries.
(A)fatigue among shift workers, and have raised
(B)fatigue among shift workers, and raised
(C)and fatigue among shift workers while raising
(D)lowered fatigue among shift workers, and raised
(E)and fatigue among shift workers was lowered
while raising
Step 1) Recognize the sentence structure. Right now the sentence is structured like this:
"studies have reduced X, Y, Z, and have raised Q."
You cannot have this structure! With a "laundry list" like this, you have to end the third item with "and..."
It has to be:
"studies have reduced X, Y, and Z while raising Q."
I was spent a few seconds onsidering another alternate structure like this:
"studies have reduced X, Y, Z, and Q"---but that's not what the sentence is trying to say. The sentence is trying to stay that it RAISED Q---instead of REDUCED Q. So after a few seconds, I went back to what I was thinking of before.
Step 2) So we conclude we want to REDUCE 3 items, and RAISE the last one.
so think:
"studies have reduced item1, item2, and item3 while raising item4."
The word "and" must be there--only choices (C) and (E) have this. Of the two, (C) is much simpler and still accurate. The "was lowered" in (E) shouldn't be there.
Step 3) So we go with (C) and read it again to make sure it makes sense.
"studies have reduced [ (sickness), (sleeping on the job), (and fatigue among shift workers) ] while raising (production efficiency)."作者: zhangws 时间: 2011-12-23 21:27
