请教大全第10题（补充170题），已经搜索过。 - ChaseDream

以下是引用bigcamel在2003-12-8 23:13:00的发言：
baby mm, 快受不了你的提问了。是这样：因为主句中已有in the coming year, 所以之后再重复不大爽（糖吃多了还不甜呢），所以then之后用it is five years ago表达是与in the coming year 对比，这样的表达的确更好。自己再体会一下吧

以下是引用bigcamel在2003-12-9 0:30:00的发言：
baby mm, 不要自责，你的问题还是不错的。若没有it was, 我这样补全省略似乎也可以（虽有一点勉强）：making….than did the rise five years ago
then ever before 中若补全it was 也会更好

这道题真很让人晕，我可能永远也想不明白为什么补出IT WAS，OG251中就在THAN 后直接跟时间状语。刘振民的语法中关于比较的两点金科玉律肯定有问题，比较对象必须一致是真理，而补出谓语动词的说法则绝对是误人子弟，还是一楼楼主对比较理解的深刻些，所以对IT WAS 的补出就难以理解。

以下是引用fdkbaby在2003-12-8 21:56:00的发言：
10. A large rise in the number of housing starts in the coming year should boost new construction dollars by several billion dollars, making the construction industry’s economic health much more robust than five years ago.
(A) making the construction industry’s economic health much more robust than five years ago
(B) and make the construction industry’s economic health much more robust than five years ago
(C) making the construction industry’s economic health much more robust than it was five years ago
(D) to make the construction industry’s economic health much more robust than five years ago
(E) in making the construction industry’s economic health much more robust than it as five years ago

参考答案C

请问这里为什么要补充it was。

我对than比较的理解是：如果是主语比较，通常要求补出助动词，为避免歧义。但是如果明显不会造成歧义，那么按照简洁的原则可以省略助动词；如果是宾语比较，通常不补出助动词，因为助动词（谓语部分）和主语一起省略了；如果是状语比较，也不补出，因为主谓宾都相同，一起省略了。

这里是比较状语吧，为什么要补出呢？不会引起歧义啊！

大家帮我看看吧，多谢了！

making the construction industry’s economic health much more robust than the construction industry's economic health was five years ago

和大家交流一下我对比较结构省略的看法，也希望大家看看我的理解又没有错。

有一个的时候尽量补出（尤其如果省略后的名词词组既可以看作主语,也可以看作宾语,就会产生歧义现象），这样一方面可以避免歧义，另一方面也使得不同时态之间的比较更加清楚。也只是尽量，是一个相对错误，不是绝对，应该再结合其他因素来考虑。相信ETS不会变态到其他3个选项都错，另外2个选项除这一点以外完全一样的情况；即使是这样，我觉得也应该是本着逻辑意思清楚地前提来选，如省略后意思很清楚，那末就选省略的，简洁嘛！当然希望大家不要这样钻牛角尖。

关于歧义，我想OG得例子太多了。比如OG19.现在举一个很简单的例子：he loves his dog more than his wife.

如不补出，则有歧义：he loves his dog more than his wife(loves his dog) or he loves his dog more than(he loves) his wife.

关于不同时态比较，记得有一提是could have... than do now.(sorry，具体记不清了，以后看到了再补充)。

有2个或者2个以上的不补出，因为补出以后反而不知道补出的是哪个，总不能说than do and do吧！

比较的一个典型错误就是：比较对象和（时间、地点）状语之间不具可比性。如og 89和本题--时间状语

than usual, than ever, than before, than ever before, than expected, than sb expected, than sb had expected.

这道题很讨厌，待我找到好的反例再来搞它！记得我以前搞定过它的。

The gyrfalcon, an Arctic bird of prey, has survived a close brush with extinction; its numbers are now five times greater than when the use of DDT was sharply restricted in the early 1970's.

那么请问OG251为什么可以省略？

The gyrfalcon, an Arctic bird of prey, has survived a close brush with extinction; its numbers are now five times greater than when the use of DDT was sharply restricted in the early 1970's.

请问这里为何不用补出it was

这个确实是长久的疑问啊

making the construction industry’s economic health much more robust than the construction industry's economic health was five years ago