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题库 / Prep2008E1-SC-175
Experts estimate that ten times as much petroleum exists in sources like tar sands, heavy oil, and perhaps even in shale than in conventional reservoirs.
sources like tar sands, heavy oil, and perhaps even in shale than
sources like tar sands, heavy oil, and perhaps even in shale than are
such sources as tar sands, heavy oil, and perhaps even in shale as are
such sources as tar sands, heavy oil, and perhaps even shale as
such sources as tar sands, heavy oil, and perhaps even shale than
题目分析：
本题十分简单，只要把一些习语和比较能记住就可以了。
选项分析：
A选项：本选项具有三处错误。第一，介词like不能表示举例。第二，ten times as much as是固定搭配，不能用ten times as much than，than必须在身前有more来搭配。第三，source列举对象的三者为tar sands，heavy oil，和shale。此三者应在字面上保证平行，因此应改为：tar sands, heavy oil, and perhaps even shale。
B选项：本选项错误同选项(A)。
C选项：比较词as身后补出了助动词are，但在其身前并没有能与其平行的助动词。另外，平行错误同选项(A) 。
D选项：Correct. 本选项在语法和逻辑上均是正确的。
E选项：ten times as much than错误同选项(A)。
Experts estimate that ten times【as much】 petroleum exists in sources such* sources as* (tar sands, heavy oil, and perhaps even shale) 【as】 in conventional reservoirs.
专家估计，油砂、重油甚至页岩等油源中的石油含量是传统油藏的十倍。
和……一样多：【as much】 in ...【as】 in
举例用：such 种类 as 例子1,例子2,例子3
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