1)Soaring television costs accounted for more than half the spending in the presidential campaign of 1992, a greater proportion than it was in any previous election.
A.a greater proportion than it was
B.a greater proportion than
C.a greater proportion than they have been
D.which is greater than was so
E. which is greater than it has been
这道题排除法是可以做出来B选项的，可是我试着将比较部分简化了一下后： The proportion in 1992 is a greater proportion than in any previous election. 但是这里在than后的that可以省略吗，总觉得省略了后前后不对称啊，我觉得把上面这个句子改一下才可以省略that： The proportion is greater in 1992 than in any previous election. 类似的句子有： The annual per capita income is lower of B than of other places. The annual per capite income of B is lower than that of other places. 这里的that是不是也不能省啊？~~~
2）做完1)后，我又碰到了下面一道题，发现这两道题有点矛盾。。。。 Today’s technology allows manufacturers to make small cars more fuel-efficient now than at any time in their production history. A.small cars more fuel-efficient now than at any time in their
B.small cars that are more fuel-efficient than they were at any time in their
C.small cars that are more fuel-efficient than those at any other time in
D.more fuel-efficient small cars than those at any other time in their
E.more fuel-efficient small cars now than at any time in
答案在解释A为什么错的时候，强调了今天的small cars和以前的small cars是不一样的，所以不能直接比较时间now和at any time 可是1）中的1992年的proportion显然也不是in any previous election的proportion,答案还是直接比较了时间啊~~~ 我该如何判断什么时候不能直接比较时间什么时候又可以直接比较时间呢？
我还是觉得这里的简化后应该是Costs accounted for more than half the spending in 1992 and the proportion in 1992 is a greater proportion than that in any previous election.这里比较的是主语，所以这里的that不应该省略才对。。。
thks~~作者: sisichen666 时间: 2012-11-6 16:54
句子补全：Soaring television costs accounted for more than half the spending in the presidential campaign of 1992,a greater proportion than（后面省略的内容应该是televisioncosts did）in any previous election 本题根据逻辑语义比较的是状语部分，可以省略主谓的。作者: yiqing2012 时间: 2012-11-7 15:40
thks~ 我今天又好好想了一下，觉得自己有点钻牛角尖了，想把比较结构公式化，但是实际上只要满足比较部分没有歧义、和前面部分有对应parallel的条件就可以了。。。
如果把第二题的A或B加上other： Today’s technology allows manufacturers to make small cars more fuel-efficient now than at any other time in their production history. Today’s technology allows manufacturers to make small cars that are more fuel-efficient than they were at any other time in their production history. 上面的两个句子到底有哪里不对呢？（能不能解释一下各自对ron的说法的理解？）
thks in advance~~作者: yiqing2012 时间: 2012-11-8 16:37
umm...又想了一天，觉得自己钻牛角尖了。。。 而且一直把第二题的make的意思弄错了。。。（这里make是“制造”的意思，我一直理解成“使得”。。。）
另外，想验证一下下面的两个句子对不对： Small cars are more fuel-efficient now than at any other time in their production history. Soaring television costs accounted for more than half the spending in the presidential campaign of 1992, a greater proportion than that in any previous election.
（这里make是“制造”的意思，我一直理解成“使得”。。。）