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题库 / Prep2008E1-SC-250
Researchers agreed that the study of new treatments for heart attack patients was extremely important but more research was needed to determine that balloon angioplasty preceded with ultrasound was or was not any better for heart attack patients than the balloon procedure by itself.
more research was needed to determine that balloon angioplasty preceded with ultrasound was or was not any better for heart attack patients than
more research was needed for determining whether or not balloon angioplasty preceded by ultrasound is any better for heart attack patients than is
that more research was needed to determine whether balloon angioplasty preceded by ultrasound is any better for heart attack patients than
that more research was needed to determine that balloon angioplasty preceded with ultrasound was any better for heart attack patients than
that more research was needed for determining that balloon angioplasty preceded by ultrasound is or is not any better for heart attack patients than is
题目分析：
略。
选项分析：
A选项：过去分词短语preceded with ultrasound应改为preceded by ultrasound。这是因为，过去分词表被动，而被动语态规定，be done by A中的A才是do在逻辑上的主语。由于超声波是在逻辑上发出precede这个动作的主语，所以应该用介词by。
B选项：介词短语for determining应改为不定式短语to determine，这点考查了不定式和ing的区别，用之于本题，for determining是need的宾语补足语，因此应有need的约束力决定。显然地，need的约束力较强，应该用不定式短语做宾语的补足语。
C选项：Correct. 本选项在语法和逻辑上均是正确的。
D选项：preceded with错误同选项(A)；determine的内容发生在主句agree之后，所以应该用agree向后推移的时态：一般现在时is，而不能用一般过去时was。
E选项：介词短语for determining应改为不定式短语to determine错误同选项(B)。
Researchers agreed【that】 the study of new treatments for heart attack patients was extremely important but 【that】more research was needed to determine 【whether 】balloon angioplasty preceded by ultrasound is any better for heart attack patients than the balloon procedure by itself.
研究人员一致认为，对心脏病发作患者的新治疗方法的研究非常重要，但需要更多的研究来确定超声之前的球囊血管成形术是否比球囊手术本身对心脏病发作患者更好。
agree that…but that…，宾语从句的平行that不能省，使句子更加清晰
whether or not的使用：
在引导宾从的时候只能够用whether，而不能加or not，否则累赘；
在引导状从的时候必须加上or not，即whether or not。
determine的内容如果现在还未最终决定下来时， is用现在时成立
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