OG语法问题求解~~~~~~~~

笨熊1028

8. The widely accepted big bang theory holds （that the
universe began in an explosive instant ten to twenty
billion years ago and has been expanding) ever since.
OG解说里是说主语为universe,that从句中的动词描述在爆炸那刻universe做了什么。
我对has been expanding ever since有疑惑。弱弱的问一句，这是什么时态？过去完成进行时？是表示动作一直延续至今，仍旧对现在有影响？

16.Retail sales rose 0.8 of 1 percent in August,
intensifying expectations （that personal spending in
the July–September quarter more than doubled that
of） the 1.4 percent growth rate in personal spending
for the previous quarter.
(B) that personal spending in the July–September
quarter would more than double
(D) of personal spending in the July–September
quarter more than doubling that of
OG对于D的描述是无错，但是不及B来的好。可是为什么D有that of?B中的that of没有？



19.The Iroquois were primarily planters, （but
supplementing ）their cultivation of maize, squash,
and beans with fishing and hunting.
(A) but supplementing
(B) and had supplemented
(C) and even though they supplemented
(D) although they supplemented
(E) but with supplementing
这题完全没弄懂，求解析。D选项可不可以理解为是even though引导的从句中，they做从句中的主语？

23. In a previous design, （the weight of the discus used in
track competition is concentrated in a metal center,
but now it is） lined with lead around the perimeter,
thereby improving stability in fl ight and resulting in
longer throws.
(A) In a previous design, the weight of the discus
used in track competition is concentrated in a
metal center, but now it is
(B) According to a previous design, the weight of
the discus used in track competition was
concentrated in a metal center, but now it is
(C) Once designed with its weight concentrated in a
metal center, the discus used in track
competition is now
(D) The discus used in track competition, once
designed with its weight concentrated in a metal
center, but now
(E) The discus used in track competition was once
designed having its weight concentrated in a
metal center and now
原句中的but now it is的it指代什么？本句的主语是weight，还是discus？OG解析里说WEIGHT是主语，it指代weight。那为啥C选项的解释是discus是主句主语？
完全糊涂了，求此句详解。。。

26. Emily Dickinson’s letters to Susan Huntington
（Dickinson were written over a period beginning a few
years before Susan’s marriage to Emily’s brother and
ending shortly before Emily’s death in 1886,
outnumbering ）her letters to anyone else.
这里的outnumbering是不是动名词？所以才让主句缺少了main verb?
有一个小小的疑惑，outnumbering可以看做是伴随状况吗？
在GMAT中，是不是这种类似的情况统统视为动名词？

35. Along with the drop in producer prices announced
yesterday, the strong retail sales figures released
today seem （like it is indicative that） the economy,
although growing slowly, is not nearing a recession.
(B) as if to indicate
(C) to indicate that
seem as if 在什么情况下使用合适？表示虚拟语气？还是句子里有明显的假设？
c中的seem to do是不是表示目的？

笨熊1028

呜呜，谁给我这只小白解答一下？

spoiledchild

8.is expanding表达现在在扩张，但是不能描述过去，has been expanding表达过去到现在一直在扩张
16.我也不懂，我就觉得B那个就不是比较，而是描述这个spending会带来的一个结果，那就是增长率的翻倍
19.I主要是农业种植者，但是他们通过捕鱼和打猎补充其他食物。
23.语法上指代weight，逻辑上应该指代discus，所以A错了
26.这个句子重心在were written,outnumbering表伴随结果，改变了句意，重心应该在outnumber（谓语）
35.seem to do习语，你问的我也不懂。

笨熊1028

8.is expanding表达现在在扩张，但是不能描述过去，has been expanding表达过去到现在一直在扩张
16.我也不懂，我就觉得B那个就不是比较，而是描述这个spending会带来的一个结果，那就是增长率的翻倍
19.I主要是农业种植者，但是他们通过捕鱼和打猎补充其他食物。
23.语法上指代weight，逻辑上应该指代discus，所以A错了
26.这个句子重心在were written,outnumbering表伴随结果，改变了句意，重心应该在outnumber（谓语）
35.seem to do习语，你问的我也不懂。谢谢谢谢，灰常滴感谢

-- by 会员 spoiledchild (2011/8/1 9:25:38)

毛毛carina

哎，一个帖子那么多题目，难怪少人回复啦，看着会眼花

毛毛carina

16 http://forum.chasedream.com/archiver/GMAT_SC/thread-535939-1.html

毛毛carina

19， D已经改变了原句的意思

毛毛carina

23，原句weight是主语，C选项 designed with its weight…………， the discus used。就变成了discus 做主语啦。两个选项句子结构不一样