14. Paleontologists believe that fragments of a primate
jawbone unearthed in
(A) at 40 to 44 million years old provide evidence of
(B) as being 40 to 44 million years old provides evidence of
(C) that it is 40 to 44 million years old provides evidence of what was
(D) to be 40 to 44 million years old provide evidence of
(E) as 40 to 44 million years old provides evidence of what was
D, the best choice, correctly follows estimated with to be. The other choices present structures that are not idiomatic when used in conjunction with estimated. Choices B, C, and E all mismatch the singular verb provides with its plural subject, fragments, and in choices C and E, what was is unnecessary and wordy. In choice C, the use of the verb phrase estimated that it is produces an ungrammatical sentence.
og说c选项动词短语有语法错误,请问是什么错误?
本人认为c的it有指代错误,这里是不能指代fragments??
这样理解对么,请指教
首先，C的这种用法很奇怪，因为这里estimated是一个过去分词作定语，加从句的这种情况几乎没有见过；
其次强调句it's 完全没有必要，what was不够简洁！
明白了,当时也是觉得estimated作定语接that从句很怪,现在更肯定了
不过be estimated at 的表达对么
estimate+that从句的用法是符合语法的。但是在这儿，还原后就不是estimate+that从句了，而是：estimate+sth.+that从句。这个合语法吗？ETS是说这个不合语法。
estimate + to do不对。应该是estimate＋noun/pronoun＋to do。to do在这个是作为宾语补足语的。
estimate＋noun/pronoun＋at也是对的。但是在这儿，还原后就变成estimate fragments at 40 to 44 million years old. 这是不对的，如果改成estimate age of fragments at 40 to 44 million years. 就对了。
不知我的理解对不对？一家之言，大家讨论讨论。
在词霸里找到一个例句:
I estimate her age at 35
支持juningw的观点
In choice C, the use of the verb phrase estimated that it is produces an ungrammatical sentence.
estimated 过去分词是形容词性，that引导的限定性定语从句that it is 40 to 44 million years old,只能修饰名词，不能修饰形容词。
.
estimated 过去分词是形容词性，that引导的限定性定语从句that it is 40 to 44 million years old,只能修饰名词，不能修饰形容词。
难道estimated不是分词修饰前面的名词么,这里本人认为是estimate that 就对了,而d项还原以后是estimated sth that ....就是不符合它的用法了estimated 过去分词 修饰N，本身就暗含的“被动或已完成”的意思
estimate 做主动，用estimate sth. that..... 句型可以，其中that 从句是作为宾语的补足语。
estimate 做被动，只能是 sth. be estimated to.......
今天有把这个贴子翻开来看了一遍对og所说"In choice C, the use of the verb phrase estimated that it is produces an ungrammatical sentence."
还是不很明白,请各位帮我再看看,这里为什么是个不符合语法的句子.
14. Paleontologists believe that fragments of a primate
jawbone unearthed in
c.that it is 40 to 44 million years old provides evidence of what was
e. as 40 to 44 million years old provides evidence of what was
请问这里what was引导从句是做of的宾语,还是evidence的定语,thx
14. Paleontologists believe that fragments of a primate
jawbone unearthed in
c.that it is 40 to 44 million years old provides evidence of what was
e. as 40 to 44 million years old provides evidence of what was
请问这里what was引导从句是做of的宾语,还是evidence的定语,thx
of what was....做evidence的定语
今天有把这个贴子翻开来看了一遍对og所说"In choice C, the use of the verb phrase estimated that it is produces an ungrammatical sentence."
还是不很明白,请各位帮我再看看,这里为什么是个不符合语法的句子.
我是这样理解的，如果把多余的东西去掉剩下 fragments unearthed and estimated that it is......这样that 引导的从句应该是修饰fragments的，还原一下变成 estimate fragments that it is ,这肯定是不对的
estimate that 中that 从句作的是estimate的宾语，而不是象这句去限定estimated 修饰的名词。
不知道说清楚了没有。
我是这样理解的，如果把多余的东西去掉剩下 fragments unearthed and estimated that it is......这样that 引导的从句应该是修饰fragments的，还原一下变成 estimate fragments that it is ,这肯定是不对的
estimate that 中that 从句作的是estimate的宾语，而不是象这句去限定estimated 修饰的名词。
不知道说清楚了没有。
完全同意。因为这里estimated作定语修饰fragments的。
总结:C的错误原因
本句句子大结构
believe that fragments...provide evidence.
that引导的宾语从句中,unearthed in ...and estimated to be 是过去分词(表被动)做主语fragments的定语,词性是形容词, 所以就很明显,做为形容词的estimated是不能再引导一个that定语从句了.
难道estimate就不能用个过去式了，和前面的unearthed正好对应么？
这个真是不太明白～
estimated 过去分词 修饰N，本身就暗含的“被动或已完成”的意思
estimate 做主动，用estimate sth. that..... 句型可以，其中that 从句是作为宾语的补足语。
estimate 做被动，只能是 sth. be estimated to.......
我同意,~~此处是fragments estimated that,不应该是物来estimate,而应该是人来estimate,所以此处不能用主动形式的estimate that句型，不知道这样解释对不对
| 欢迎光临 ChaseDream (https://forum.chasedream.com/) | Powered by Discuz! X3.3 |