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题库 / GMATLA-SC-57
According to analysts, an alliance between three major personal computer companies and most of the nation's largest local telephone companies would enable customers to receive internet data over regular telephone lines with speeds much higher than is currently possible.
with speeds much higher than is
with speeds that are much higher than are
at much higher speeds as are
at much higher speeds than that
at speeds much higher than are
题目分析：
本题主要考查考生对于比较中省略现象的理解。
选项分析：
选项A：由于speeds是复数名词，所以应该将本选项中最后一个be动词改为复数动词are。
选项B：至少，本选项应改为：
speeds that will be much higher than are currently possible
这是因为，速度应该是在未来更高，而不是现在更高。
选项C：习语有误，more + than为习惯表达，不能用more + as。
选项D：speeds是复数名词，不能用单数代词that指代。
选项E：Correct. 本选项在语法和逻辑上均是正确的。
that 不能代复数。。+少了be动词
这个里面是speeds的比较:an alliance...would enable customers to receive ...at speeds much higher than are currently possible.
--> an alliance...would enable customers to receive ...at speeds much higher than [speeds( that are) currently possible].
省略了speeds that,只保留了are
类似的，prices are higher than we expected.
--> prices are higher than (prices that) we expected
这题有点别扭，凭语感么？
D的that不能指代复数speeds
还原E：at much higher speeds than speeds that are currently possible
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No. The VERB recieve
It is wrong to use “with”, which makes the “speed” modify the VERB “enable”.
at speeds much higher than （speeds）are currently possible. are就是这么来的
但是貌似有be动词的比较是要把be动词一起省略呀，这题目好奇怪
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注意代词that／those的单复数区别
at speeds much higher than (speeds) are currently possible.注意省略引起的倒装现象！！！！注意speeds是复数，谓语用are！！！
比较时谓语可省可不省
①at speeds（that will be）much higher than （speeds that）are currently possible
②with并没有很清晰的表达出是 以这个speed来receive data的
③at speed
④注意单复数的
D 就算改成those也不对 。 应该是 at much higher speeds then they do， 即比主语。 后面currently possible 暗示显然是比speeds ， 那就是 at speeds (that will be higher) than ( those are) currently possible
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选项D：speeds是复数名词，不能用单数代词that指代
at speeds固定搭配
选项B除了时态问题以外还有别的问题吗？感觉这里用定语从句很奇怪，但是说不出上来为什么。
at speeds搭配更合适一些
E 省略了speeds ,at speeds much higher than currently possible speeds are. 在GMAT考试中，be动词可省可不省，但在这种现在与未来的比较当中，be动词最好不省。are提前是由于省略引起的倒装。
At speed that are much higher than are current possible.
D that不能代复数speeds
E 省略了speeds ,at speeds much higher than currently possible speeds are. 在GMAT考试中，be动词可省可不省，但在这种现在与未来的比较当中，be动词最好不省。are提前是由于省略引起的倒装。
that 是单数代词，不能指代speeds