什么情况下，比较句用those指代前句的比较对象是对的？

hoteldeville

感觉有时比较句子中，不能用those+表示时间的介词短语或表地点的介词短语。原因是，those并不能指代前面的那个比较对象。但有时又可以？例如PREP213：
Shoppers in sporting goods stores, unlike in department stores, do very little impulse shopping, not buying a pair of skis and a boomerang when they come in for a basketball, but they leave with a basketball only
A.    in department stores, do very little impulse shopping, not buying a pair of skis and a boomerang when they come in for a basketball, but they leave with a basketball only
B.    in department stores, shop impulsively very little; someone who comes in for a basketball will leave with a basketball only and not also buy a pair of skis and a boomerang as well
C.    those in department stores, do very little impulse shopping, do not buy a pair of skis and a boomerang when they come in for a basketball, but leave with only a basketball
D.    those in department stores, do very little impulse shopping; someone who comes in for a basketball will leave with a basketball only and not buy a pair of skis and a boomerang as well  
E.    department stores, shop impulsively very little; someone will not buy a pair of skis and a boomerang when they come in for a basketball but will leave with only a basketball
答案就是D。

ximenheng

those = that 的复数= the +nouns (当指代物的时候）
those = the ones  (当指代人的时候）

right: the equpiments (复数）are bigger than those (复数）on the other side of the road.
Wrong: the equpiment (单数）is as bigher as those (复数）in the room.

另外 those只能用于异物指代， 同物指代只能 they, them

wrong: the students got great scores, because those had studied hard.
right: the students got great scores, becasue they had studied hard.

hoteldeville

哦，谢谢！

wangjieava23

those = that 的复数= the +nouns (当指代物的时候）
those = the ones  (当指代人的时候）

right: the equpiments (复数）are bigger than those (复数）on the other side of the road.
Wrong: the equpiment (单数）is as bigher as those (复数）in the room.

另外 those只能用于异物指代， 同物指代只能 they, them

wrong: the students got great scores, because those had studied hard.
right: the students got great scores, becasue they had studied hard.

-- by 会员 ximenheng (2012/4/20 11:07:00)

恩。
我了解还包括：that, those 不能单独出现。后面要更修饰成分。it, they就可以。
但是我一个疑问：有人说one, ones 不能用于修饰人。是不是这样？能帮我确定一下吗

ximenheng

据我所知
one 人和物皆可
that 只能是物

Since the guy quit the job, we need one to finish it.