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题库 / OG2017V-SC-289
In preparation for the prediction of a major earthquake that will hit the state, a satellite-based computer network is being built by the California Office of Emergency Services for identifying earthquake damage and to pinpoint the most affected areas within two hours of the event.
In preparation for the prediction of a major earthquake that will hit the state, a satellite-based computer network is being built by the California Office of Emergency Services for identifying
In preparing for the prediction that a major earthquake will hit the state, the California Office of Emergency Services is building a satellite based computer network that will identify
In preparing for a major earthquake that is predicted to hit the state, the California Office of Emergency Services is building a satellite-based computer network to identify
To prepare for the prediction of a major earthquake hitting the state, a satellite-based computer network is being built by the California Office of Emergency Services to identify
To prepare for a major earthquake that is predicted to hit the state, the California Office of Emergency Services is building a satellite-based computer network that will identify
A.b.c 是不是算介词短语做状语，In preparation，这种需要主句的主语也做他们的动作发出者吗
不需要的。一定要从语法机构的底层逻辑来看待这个问题。我们一般管介词短语也叫介宾短语。这个意思就是介词后面一定加名词（所有的宾语都是名词性的）。名词是没有所谓逻辑主语的概念的。譬如，table就没有主语，只有动作才有主语。
同时，英语中也规定，如果想给动名词添加主语的话，需要用所有格的形式，例如：people's preparing。
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句子没看全，光凭后面的and to pinpoint可以排除ABE，剩下C和D。D里边to prepare for the prediction的主语是computer network，错误，选C。
另外，ABC里边in preparation/preparing for ...用的是介宾短语做状语，没有逻辑主语的概念，所以不能依据这个来看句子主语来排除选项。
CD为预测做准备，为地震做准备。
network不可以prepare
为地震做准备，不是为预测做准备
Prepare 的逻辑主语应该是 CA office, 杀掉AD，
E： To prepare for a major earthquake ， prepare的对象应该是prediction而不是earthquake, 杀掉
剩下BC只有C的 to identify和后面未划线部分的and to pinpoint 结构和语义平行
忘了看后面句子
划线句子后面有个and连接前后两个并列to do sth, 所以选项的最后要体现：to identify, 所以剩下CD两项，ABD都表示为prediction做准备，而不是earthquake,不合逻辑；
额 不知道怎么会错的。e选项后面的and前后不定时与will do 不平行啊
to pinpoint与to identify平行排除a, b, e
d，prepare的逻辑主语只能是California office，不能是a satellite
C和E的split可以由平行来排除 ：and to pinpoint the most affected areas within two hours of the event.前面要有与之相平行的成分，故选C
D As in (A) and (B), the beginning of this sentence is inconsistent with the
rest of it. The opening phrase claims to describe preparations for a
prediction, whereas the latter part of the sentence indicates that the
preparations are for a predicted earthquake.
A In this version of the sentence, the opening phrase illogically claims that
the California Office is preparing for a prediction, but later in the sentence it
becomes clear that the preparations are targeted to the aftermath of a
possible earthquake, not its prediction.