rc
落入陷阱了
定位在“A meteor stream is composed of dust particles that have been ejected from a parent comet at a variety of velocities. These particles follow the same orbit as the parent comet”问的是为什么follow original（same） orbit。。。：）：）
rc
看清题干，问的是今天的科学家怎么看，定位文中“To most geologists today, Wegener's The Origin of Continents and Oceans appears an impressive and prescient document,”，根据定位句去选，不要在看其他多余info
这个题错在，找了好几个定位，最后选错了答题点定位选了“Most geologists and many historians today believe that Wegener's theory was rejected because of its lack of an adequate mechanical basis.”，但是即使是根据这里，b选项也不对啊！b说“that was later disproved.”，文中根本就没有这个意思说证明虚假！（disprove反驳，证明虚假）。
看清楚再选，不要说找了半天定位，刚找到就迫不及待去选相关项，而不去考了选项的细节是否正确！
rc
看清题干，问的是今天的科学家怎么看，定位文中“To most geologists today, Wegener's The Origin of Continents and Oceans appears an impressive and prescient document,”，根据定位句去选，不要在看其他多余信息：It was a worthy scientific effort that was ahead of its time.
这个题错在，找了好几个定位，最后选错了答题点定位选了“Most geologists and many historians today believe that Wegener's theory was rejected because of its lack of an adequate mechanical basis.”，但是即使是根据这里，第二句也不对啊！看清楚再选，不要说找了半天定位，刚找到就迫不及待去选相关项，而不去考了选项的细节是否正确！
rc
这道题重在定位，从题干关键词去定位 “human activity “”straying rates”：
最后一段包括了关键词
Although no one has quantified changes in the rate of straying as a result of the disturbances caused by humans, there is no reason to suspect that the effect would be qualitatively different than what was seen in the aftermath of the Mount Saint Helens eruption（nature cause）. 定位准了，去把文中句子翻译成选项句子
deterring to the nuclear industry is not correct, as deter is a transitive verb and requires a direct object.
while prove does not have to be followed by to be, here to be is required for parallelism with political opposition is.
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注意选项中有总共144的条件！