hurricanes, or
(B) whether from natural processes such as shoreline recession, rising sea levels, and destructive
hurricanes, or also
(C) to processes that are natural like shoreline recession, rising sea levels, and destructive
hurricanes, and also
(D) to processes that are natural ones like shoreline recession, rising sea levels, and destructive
hurricanes, as well as to
(E) to natural processes such as shoreline recession, rising sea levels, and destructive hurricanes,
as well as to
答案为E 但是破解中C的解释这样说and also (be vulnerable) to…的第二个to不能省略，以明确平行的对象
最后是OG的这道题
94. The recent surge in the number of airplane flights has
clogged the nation’s air-traffic control system, to lead
to 55 percent more delays at airports, and prompts
fears among some officials that safety is being
compromised.
(A) to lead to 55 percent more delays at airports,
and prompts
(B) leading to 55 percent more delay at airports and
prompting
(C) to lead to a 55 percent increase in delay at
airports and prompt
(D) to lead to an increase of 55 percent in delays at
airports, and prompted
(E) leading to a 55 percent increase in delays at
airports and prompting
答案是E
但是这题的C选项
OG解释说除了delay的问题
prompt前边没有to和前边的to lead不平行
看了这三题。。。我就不明白了。。。到底什么情况第二个to不可以省略？请TX们指教。。LZ语法一向糟糕，要是白痴问题也请解答下。。。先谢过了~~
先看这道题83. (29013-!-item-!-188;#058&003802)
Stock levels for domestic crude oil are far lower than in past years,
leaving domestic oil prices
vulnerable to any hints of oil supplies being disrupted in the Middle East or to any unexpected
consumer demand growth possibly prompted by colder-than-normal temperatures.
(A) leaving domestic oil prices vulnerable to any hints of oil supplies being disrupted in the Middle
East or to any unexpected consumer demand growth possibly
(B) leaving domestic oil prices
vulnerable to any hints of oil supply disruptions in the Middle East
or
any unexpected growth in consumer demand that might be
(C) leaving domestic oil prices vulnerable to any hints of oil supplies that are disrupted in the Middle
East or to any unexpected growth in consumer demand as was possibly
(D) resulting in the fact that domestic oil prices are vulnerable to any hints of oil supplies being
disrupted in the Middle East or to any unexpected consumer demand growth possibly
(E) resulting in the fact of domestic oil prices that are vulnerable to any hints of oil supply
disruptions in the Middle East or to any unexpected growth in consumer demand that might be
此题是B选项 破解的解释为 该句中的并列结构vulnerable to any…or to any和vulnerable to any… or any表达都正确,第二个to和第一个to功能一样,可以省略再看这题57. (27464-!-item-!-188;#058&003513)
The ecosystems of barrier islands are extremely vulnerable--whether from natural processes likeshoreline recession, rising sea levels, and destructive hurricanes, or the ever-increasing pressuresof development.(A) whether from natural processes like shoreline recession, rising sea levels, and destructive
hurricanes, or
(B) whether from natural processes such as shoreline recession, rising sea levels, and destructive
hurricanes, or also
(C) to processes that are natural like shoreline recession, rising sea levels, and destructive
hurricanes, and also
(D) to processes that are natural ones like shoreline recession, rising sea levels, and destructive
hurricanes, as well as to
(E) to natural processes such as shoreline recession, rising sea levels, and destructive hurricanes,
as well as to
答案为E 但是破解中C的解释这样说and also (be vulnerable) to…的第二个to不能省略，以明确平行的对象
最后是OG的这道题
94. The recent surge in the number of airplane flights has
clogged the nation’s air-traffic control system, to lead
to 55 percent more delays at airports, and prompts
fears among some officials that safety is being
compromised.
(A) to lead to 55 percent more delays at airports,
and prompts
(B) leading to 55 percent more delay at airports and
prompting
(C) to lead to a 55 percent increase in delay at
airports and prompt
(D) to lead to an increase of 55 percent in delays at
airports, and prompted
(E) leading to a 55 percent increase in delays at
airports and prompting
答案是E
但是这题的C选项
OG解释说除了delay的问题
prompt前边没有to和前边的to lead不平行
看了这三题。。。我就不明白了。。。到底什么情况第二个to不可以省略？请TX们指教。。LZ语法一向糟糕，要是白痴问题也请解答下。。。先谢过了~~
-- by 会员 dadaozei1412 (2010/8/15 1:02:49)
感谢楼上几位，自ding三天之后总算有人回答了~~
回7楼：第二题就是选E
你的意思是说第一题也就是prep83题其实to不应该省略，可是这题正确选项就是B，把第二个to省略了
-- by 会员 dadaozei1412 (2010/8/18 2:37:02)
那么看来就没有介词动词之分了，可能我之前总结的不太对。
功力不够，还要再研究研究：P谢谢你又帮助我认识到一个问题哈。
共同进步~
感谢楼上几位，自ding三天之后总算有人回答了~~
回7楼：第二题就是选E
你的意思是说第一题也就是prep83题其实to不应该省略，可是这题正确选项就是B，把第二个to省略了
-- by 会员 dadaozei1412 (2010/8/18 2:37:02)
-- by 会员 yougushizi (2010/8/18 7:44:39)