#8 Q34
Building on civilizations that preceded them in coastal Peru, the Mochica developed their own elaborate society, based on cultivating such crops like corn and beans, the harvesting of fish and shellfish, and exploiting other wild and domestic resources.
correct answer: based on the cultivation of such crops as corn and beans, the harversting of fish and seafood, and the explooiting of
疑问：在based on 的用法上，这题让我想起OG上，Based on accounts of various ancient writers, scholars have painted a sketchy picture of the activities of an all-female cult that, perhaps as early as the sixth century B.C., worshipped a goddess known in Latin as Bona Dea, "the good goddess."这题。为什么这里可以用based on?
#14 Q2
By merging its two publishing divisions, the company will increase their share of the country's $21 billion book market from 6 percent to 10 percent, a market ranging from obscure textbooks to mass-market paperbacks.
my answer:to 10 percent from 6 percent its share of the country's 21 billion book market, which ranges
correct answer: from 6 percent to 10 percent its share of the 21 billion book market in the country, which ranges
仅仅只是语序的差别有优劣吗？
# 14 Q32
To develop more accurate population forecasts, demographers have to know a great deal more than now about the social and economic determinants of fertility.
my answer: have to know a great deal more than they do now about the social and economical
correct answer: would have to know a great deal more than they do now about the social and economic
我现在已经知道了此处要用economic，但是为什么要用would have to know，为什么要虚拟（如果是的话）？
另外more than they do now比more than they do要好吗？
#6 Q27
In Scotland, the number of wild salmon have been reduced because of uncontrolled deepsea and coastal netting, by pollution, and by various other threats to the fish's habitat.
my answer: wild salmon's numbers are reduced by deep-sea and coastal netting that is not controlled
correct answer: wild salmon's numbers have been reduced by uncontrolled deep-sea and coastal netting
为什么要用完成时态？很多的SC题在陈述一个孤立的事实的时候采用完成时态都是错的啊
#8 Q34
Building on civilizations that preceded them in coastal Peru, the Mochica developed their own elaborate society, based on cultivating such crops like corn and beans, the harvesting of fish and shellfish, and exploiting other wild and domestic resources.
correct answer: based on the cultivation of such crops as corn and beans, the harversting of fish and seafood, and the explooiting of
疑问：在based on 的用法上，这题让我想起OG上，Based on accounts of various ancient writers, scholars have painted a sketchy picture of the activities of an all-female cult that, perhaps as early as the sixth century B.C., worshipped a goddess known in Latin as Bona Dea, "the good goddess."这题。为什么这里可以用based on?
这道题, based on紧跟修饰society。=A society which is based on..。OG上Based on置于句首=Scholars is based on，学者建立与。。。之上？错
By merging its two publishing divisions, the company will increase their share of the country's $21 billion book market from 6 percent to 10 percent, a market ranging from obscure textbooks to mass-market paperbacks.
my answer:to 10 percent from 6 percent its share of the country's 21 billion book market, which ranges
correct answer: from 6 percent to 10 percent its share of the 21 billion book market in the country, which ranges
仅仅只是语序的差别有优劣吗？
这道题，你的选择是对的。GWD答案有误，Prep已改。
#6 Q27
In Scotland, the number of wild salmon have been reduced because of uncontrolled deepsea and coastal netting, by pollution, and by various other threats to the fish's habitat.
my answer: wild salmon's numbers are reduced by deep-sea and coastal netting that is not controlled
correct answer: wild salmon's numbers have been reduced by uncontrolled deep-sea and coastal netting
为什么要用完成时态？很多的SC题在陈述一个孤立的事实的时候采用完成时态都是错的啊。
你注意原题啊，原题就是完成时。另外，完成是就表示对现在的影响，或者这个动作到现在还是发生。
具体到这道题目里，苏格兰的鱼儿现在还在不断的减少。并没问题，原句就是这个意思。
非但如此，改变原句时态的都有。比如：
(Marconi's conception of the radio was as a substitute for the telephone, a tool for private conversation; instead, it is) precisely the opposite, a tool for communicating with a large, public audience.
A. Marconi's conception of the radio was as a substitute for the telephone, a tool for private conversation; instead, it is
B. Marconi conceived of the radio as a substitute for the telephone, a tool for private conversation, but which is
C. Marconi conceived of the radio as a tool for private conversation that could substitute for the telephone; instead, it has become
D. Marconi conceived of the radio to be a tool for private conversation, a substitute for the telephone, which has become
E. Marconi conceived of the radio to be a substitute for the telephone, a tool for private conversation, other than what it is,
key C
#8 Q34
Building on civilizations that preceded them in coastal Peru, the Mochica developed their own elaborate society, based on cultivating such crops like corn and beans, the harvesting of fish and shellfish, and exploiting other wild and domestic resources.
correct answer: based on the cultivation of such crops as corn and beans, the harversting of fish and seafood, and the explooiting of
疑问：在based on 的用法上，这题让我想起OG上，Based on accounts of various ancient writers, scholars have painted a sketchy picture of the activities of an all-female cult that, perhaps as early as the sixth century B.C., worshipped a goddess known in Latin as Bona Dea, "the good goddess."这题。为什么这里可以用based on?
这道题, based on紧跟修饰society。=A society which is based on..。OG上Based on置于句首=Scholars is based on，学者建立与。。。之上？错
感谢
但是我有疑问，此题based on并没有which/that引导，按道理动作的发起者仍旧是句子主语才对，凭什么认为是society呢？
大全8
A huge flying reptile that died
out with the dinosaurs some 65 million years ago, the Quetzalcoatlus had a
wingspan of 36 feet, believed to be the largest flying creature the
world has ever seen.
(A) believed to be
(B) and that is
believed to be
(C) and it is
believed to have been
(D) which was, it
is believed,
(E) which is
believed to be
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