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题库 / GMATLA-SC-89
The Near Earth Asteroid Rendezvous (NEAR) spacecraft will orbit the asteroid Eros for a year, slowly moving closer to the surface of the object to make ever more precise measurements that scientists hope will enable them to understand how the solar system formed some four billion years ago.
to make ever more precise measurements that scientists hope will enable them to
to make ever more and more precise measurements, which scientists are hoping to enable them
for making ever more precise measurements, and scientists hope that they will be able to
with the purpose of making more precise measurements than ever, and which scientists hope will enable them to
in order to make more precise measurements than it ever did, and scientists are hoping they will be able to
题目分析：
本题的大概意思是：
NEAR飞船会环绕Eros一年，缓慢靠近表面来做准确的测量。
选项分析：
选项A：Correct. 本选项在语法和逻辑上均是正确的。定语从句 that scientists hope will enable them to understand how the solar system formed some four billion years ago是一个嵌入式关系分句，将先行词和省略部分代入其中，则有：
scientists hope (that) measurements will enable them to understand how the solar system formed some four billion years ago.
选项B：hope的时态有误。没有理由相信科学家是“正在”希望如何，所以应该用将来时。
选项C：for making ever more precise measurements应改为不定式短语to make ever more precise measurements，这点考查了不定式和ing的区别。用之于本题，在主句“靠近表面”这个动作发生时，“做出更精准的测量”这个动作处于主观上希望开始发生的状态中（目的）。因此，应该用不定式短语。
选项D：making应改为to make错误同选项(C)。
选项E：hope时态错误同选项(B)。
a定语从句解析：
定语从句 that scientists hope will enable them to understand how the solar system formed some four billion years ago是一个嵌入式关系分句，将先行词和省略部分代入其中，则有：
scientists hope (that) measurements will enable them to understand how the solar system formed some four billion years ago.
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