看了aeo的有关比较的深度贴http://forum.chasedream.com/GMAT_SC/thread-537203-1-1.html 以及http://forum.chasedream.com/GMAT_SC/thread-536547-1-1.html
另外还有cwang的一个总结贴http://forum.chasedream.com/GMAT_SC/thread-103101-1-1.html
还有一个归纳OG11比较的贴http://forum.chasedream.com/GMAT_SC/thread-263606-1-1.html
还是有一些疑问，贴出来大家讨论一下，主要是基于aeo在http://forum.chasedream.com/GMAT_SC/thread-537203-1-1.html 中生发的。
针对这道题：
大全10. A large rise in the number of housingstarts in the coming year should boost new construction dollars by severalbillion dollars, making the construction industry’s economic health much morerobust than five years ago.
(A) making the construction industry’s economic health much more robust thanfive years ago
(B) and make the construction industry’s economic health much more robust thanfive years ago
(C) making the construction industry’s economic health much more robust than itwas five years ago
(D) to make the construction industry’s economic health much more robust thanfive years ago
(E) in making the construction industry’s economic health much more robust thanit as five years ago
Key: C
aeo的解释是：比较是construction industry’s economic health在不同年份的属性，所以than后面可以用it was，也可以用that，或者可以不补出。但是因为five years ago前面并没有介词，所以如果不补出，读者很容易认为是construction industry’s economic health和five years ago的比较。换句话说就是，如果后面是in five years ago，那么就可以不补出。 --> 这个想法是来自于a comprehensive grammar of english里面对零关系分句的解释（即时间状语在没有补出介词的时候，会给读者造成confusion--是主语/宾语，还是状语？）。
我是否可以理解成在部分比较时，than后面有三种补出方式，1、用类似it was 或they are 的主谓形式；2、用that或those代替比较部分的属性；3、用带有明确介词的时间短语。在下面几题中：
1、Today’s technology allows manufacturers to make small cars morefuel-efficient now than at any time in their production history.
A. small cars morefuel-efficient now than at any time in their
B. small cars thatare more fuel-efficient than they were at any time in their
C. small cars that are more fuel-efficient than thoseat any other time in
D. morefuel-efficient small cars than those at any other time in their
E. morefuel-efficient small cars now than at any time in
答案C
问：这里比较的是small cars的属性，但是在B中的they were 错在哪里呢？和上题的it was 有啥区别？
2、Soaring television costs accounted for more than halfthe spending in the presidential campaign of 1992, a greater proportion thanit was in any previous election.
- a greater proportion than it was
- a greater proportion than
- a greater proportion than they have been
- which is greater than was so
- which is greater than it has been
答案B
aeo的解释：这 里a greaterproportion than后面依旧是可以补出it had been，that或着不补出，in any previouselection已经明确是介词短语，不给使读者产生” a greater proportion”和“in any previouselection”比较的歧义，所以就不需要补出了。
问：a greater proportion than 在这里是不是做同位语呢？我觉得用it had been补出不是很好理解，我理解的是Soaringtelevision costs accounted for a greater proportion than they had done in anyprevious election. 所以我觉得应该用 they had done 补出。但是读着好像是有问题，但是我解释不了。
3、Although Napoleon's armyentered Russia with far more supplies than they had in their previous
campaigns, it had provisions for onlytwenty-four days.
(A) they had intheir previous campaigns,
(B) their previous campaigns had had,
(C) they had for any previous campaign,
(D) in their previous campaigns,
(E) for any previous campaign,
答案E
aeo的解释: 比较的是局部概念supplies，那么比较成分后面可以是than thosefor any previous campaign. 而than可以作为关系代词，所以省略those。
(than for any previous campaign --> than those for any previous campaign --> than those that are for any previous campaign)
问：这里的than 后面可以用 they were 补出吗？似乎they是会发生指代不清问题的，在这种情况下就该弃用吗只用those吗？
4、According to analysts, analliance between three major personal computer companies and most of the nation’slargest local telephone companies would enable customers to receive Internetdata over regular telephone lines with speeds much higher than iscurrently possible.
- with speeds much higher than is
- with speeds that are much higher than are
- at much higher speeds as are
- at much higher speeds than that
- at speeds much higher than are
The Parthenon is larger than usual for aDoric temple, with eight columns on the short sides and seventeen on the longones rather than the typical six and thirteen.
A) usual
B) is usual
C) has been usual
D) one usually is
E) it is usual
问：这两个题都补出了谓语动词，这里的than可以看作关系代词吧？跟
According to a study by the CarnegieFoundation for the Advancement of Teaching， companies in theUnited States are providing job training and general education for nearly eightmillion people, about as many as are enrolled in the nation'sfour-year colleges and universities. 里面的用法是一样的吧。
但是这两个题具体应该怎么理解呢？究竟是什么与什么在比较？
还有一个问题就是关于compared to 与as compared to 的用法区别
A recent review of pay scales indicates that CEO’s now earn anaverage of 419 times more pay than blue-collar workers, compared to a ratio of42 times in 1980.
- that CEO’s now earn an average of 419 times more pay than blue-collar workers, compared to a ratio of 42 times
- that, on average, CEO’s now earn 419 times the pay of blue-collar workers, a ratio that compares to 42 times
- that, on average, CEO’s now earn 419 times the pay of blue-collar workers, as compared to 42 times their pay, the ratio
- CEO’s who now earn on average 419 times more pay than blue-collar workers, as compared to 42 times their pay, the ratio
- CEO’s now earning an average of 419 times the pay of blue-collar workers, compared to the ratio of 42 times
在C中不考虑其他语法问题，as 指的是什么？可以去掉吗？
The number of the students in our school has increased fourtimes compared with 1980.
The production of integrated circuits has been increased tothree times as compared with last year.
The average income of the staff has been increased by 50percent compared with last year.
语法都是正确的吗？第二句和第三句一个用as 一个不用究竟那一个是对的呢？ | 
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发表于 2011-7-12 14:04:08
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