Q 23:

Discussion of greenhouse effects has usually focused on whether the

Earth would warm and by how much, but climatologists have indicated all

along that the most obvious effects, and those that would have the larg-

est impact on people, would be extremes of temperature, precipitation,

and storminess.

A.     the most obvious effects, and those that would have the largest

impact on people, would be extremes of temperature,

precipitation, and storminess

B.     the effects that are the most obvious ones, extremes of temper-

ature, precipitation, and storminess, would be those impacting

the most on people

C.     those effects to have the largest impact on people, extremes of

temperature, precipitation, and storminess, are what are the

most obvious effects

D.     extremes of temperature, precipitation, and storminess, the most

obvious effects, that they would have the largest impact on people

E.      extremes of temperature, precipitation, and storminess, which are

the most obvious effects, are those to impact the most on people

这题我选了e,答案是a,不太明白这个句子的结构,在述说一个什么事情

E改变了原文的重心

原文是说effects和those that ...是extremes

而E,首先将原来文章的主语effects变成了原来文章宾语extremes的修饰语，而把宾语颠倒过来做了主语，把主语之一的those that。。。变成了宾语~

整个强调的重心都边了~

多谢,有点明白了，再问一下,those因该是指代effects吧