2. Since 1981, when the farm depression began, the number of acres overseen by professional farm-management companies have grown from 48 million to nearly 59 million, an area that is about
(A) have grown from 48 million to nearly 59 million, an area that is about
(B) have grown from 48 million to nearly 59 million, about the size of
(C) has grown from 48 million to nearly 59 million, an area about the size of
(D) has grown from 48 million up to nearly 59 million, an area about the size of
(E) has grown from 48 million up to nearly 59 million, about
In choice C, the best answer, an area about the size of
双重所有格错/ 同位结构补出概括性名词更清楚/ 习语
The answer is C,that's OK! 我想问的是，什么时候that可以被去掉不影响句子清晰的？我记得定语从句的that不是不能省么？这里为什么说“Choice A is also wordy, since that is can be deleted without loss of clarity”
名词＋that＋be+分词/介词等一般没有分词＋名词或者名词＋介词等的形式简洁；
不过还是需要逻辑判断的，如果是名词＋that +情态动词＋be＋分词/介词大多数不要使用上面大额原则，否则意思改变；
The absence of an area in B and E impairs clarity: the phrase beginning with about must modify a noun such as area that is logically equivalent to the number of acres given.
这句话我完全不懂，为什么不能省略 an area?
名词＋that＋be+分词/介词等一般没有分词＋名词或者名词＋介词等的形式简洁；
不过还是需要逻辑判断的，如果是名词＋that +情态动词＋be＋分词/介词大多数不要使用上面大额原则，否则意思改变；
同意,我也觉得有么不成文的规定.
The absence of an area in B and E impairs clarity: the phrase beginning with about must modify a noun such as area that is logically equivalent to the number of acres given.
这句话我完全不懂，为什么不能省略 an area?
the phrase beginning with about must modify a noun
所以你光用的about在那邊,,會讓人有點搞不清楚句子在幹麻
an area到底是做谁的同位语啊？？
2. Since 1981, when the farm depression began, the number of acres overseen by professional farm-management companies have grown from 48 million to nearly 59 million, an area that is about (A) have grown from 48 million to nearly 59 million, an area that is about (B) have grown from 48 million to nearly 59 million, about the size of (C) has grown from 48 million to nearly 59 million, an area about the size of (D) has grown from 48 million up to nearly 59 million, an area about the size of (E) has grown from 48 million up to nearly 59 million, about |
主谓宾分别是
the number...has grown from 48 to 59, an area...
怎么看这个area都没有refer的名词……
59 million代表的一个范围，后面跟同位结构an area。。。
我是这样理解的
谢谢楼上，昨天又想了想，an area会不会是acre的同位语？？？
up ......
更正一下,重新看这个题目, 我觉的 an area about the size of
因为独立主格本来就可以认为是状语从句的简化,所以C 就可以还原成
Since 1981, when the farm depression began, the number of acres overseen by professional farm-management companies has grown from 48 million to nearly 59 million, while an area is about the size of
OG的解释：an area about the size of Colorado clearly describes a rough equivalence between the area of Colorado and the area overseen by the companies. 看起来，应该是把这两部分作比较。但是在题干里感觉an area about the size of Colorado是59million的同位语。。。不知道对不对？NN指教。
我认为，an area做59 million的同位语，这里应该是概括性同位语，该种同位结构要求用的词必须能够对前面的解释对象起到概括作用。比如。。。，a information。。；。。。。，a practice。。。
另外that引导宾语从句时不可省，但引导定语从句时，我的感觉是that be能省就省，这样句子更简洁。
OG的解释：an area about the size of Colorado clearly describes a rough equivalence between the area of Colorado and the area overseen by the companies. 看起来，应该是把这两部分作比较。但是在题干里感觉an area about the size of Colorado是59million的同位语。。。不知道对不对？NN指教。
我觉得两个都没有错。 og的解释是从句子意思上说的，同位语结构是从语法上分析的，不只对不对
定语从句的that: 省略
宾语从句的that: 不省
这应该是考的一个独立主格结构,n+介词短语
A 选项比独立结构比起来多余了..
1定语从句中：可以省略that be
这个题中就是省略了that is
2如果that & which在从句中作宾语，可以省略that & which
有些不明白
想问一下 an area 到底是哪个的同位语 是59millions 还是acres ?
顶一下，心里还是不确定。
up
an area到底是哪个词得同位语
我觉得E更好点,about 表示大约的意思啊, 郎文字典里的解释如下:
about adv.
a little more or less than a particular number, amount, or size
synonym roughly
I live about 10 miles away.a tiny computer about as big as a postcard
这里的about
请指教!
我觉得E更好点,about 表示大约的意思啊, 郎文字典里的解释如下:
about adv.
a little more or less than a particular number, amount, or size
synonym roughly
I live about 10 miles away.a tiny computer about as big as a postcard
这里的about
请指教!
我是这样理解的：
OG里不是说:The absence of an area in B and E impairs clarity: the phrase beginning with about must modify a noun such as area that is logically equivalent to the number of acres given.
也就是说about前必须要有名词，而E中about前是逗号。
定语从句的that: 省略
宾语从句的that: 不省
I think:
1. I am talking about the book (that is ) sold by XDF.
定语从句, that +be : "that" can be omitted though "that" is not 宾语 in 从句.
After "taht" is omiited, it changes to "FengCI or BeiDong Tai" for noun.
2. I am talking about the book (that) she mentioned yesterday.
宾语从句,"that" can be omitted
3. I am talking about the book that fell on the table.
定语从句,"that" can NOT be omiited, if omitted, 从句 will has no o.
定语丛句：
1 that做定从中主语，不可省。
there is a girl that(who) has green hair.
2 that做定从中宾语，可省，也可不省。
there is a book (that) you have not read.
3 有that be/which be引导的定从，能省就省。
there is a book (that was) borrowed by mary yesterday.
(C) has grown from 48 million to nearly 59 million, an area about the size of nearly 59 million, (which is) an area about the size of Colorado. Therefore, an area refers to "nearly 59 million acres".
nearly 59 million, (which is) an area about the size of Colorado. Therefore, an area refers to "nearly 59 million acres".
Since 1981, when the farm depression began, the number of acres overseen by professional farm-management companies has grown from 48 million to nearly 59 million, an area is about the size of
The absence of an area in B and E impairs clarity: the phrase beginning with about must modify a noun such as area that is logically equivalent to the number of acres given.
an area是作为the number of acres的同位语，在这里area的意思是面积，例：an area of 100 sq. meters 面积100平方米 (金山词霸).这样OG的解释也就迎刃而解了。
an area...并不是同谓语，而是独立主格结构：
到底是同谓语还是独立主格结构阿？
为什么是独立主格呢？
我同意是同位语。
独立主格和前面不存在对应关系，这个同位语有前面对应的。NN已经说的很清楚了。
谢谢， killer
我认为an area about the size of
The absence of an area in B and E impairs clarity: the phrase beginning with about must modify a noun such as area that is logically equivalent to the number of acres given.
这句话我完全不懂，为什么不能省略 an area?
看到了前辈诸多讨论，小生也有些想法，这里与大家分享一下，如有不对之处，望NN们多多指点！
这里面涉及到about是副词还是介词。我的理解是如果an area省略，则about一定是副词，意思为大概，几乎，差不多，那么about the size of Corolado将作为the number of acres的同位语。但是，实际上这两者之间并不是同位语的关系，而是一个比拟的关系，因此，about the size of Corolado做同位语是不合适的。
如果an area不省略，则an area about the size of Corolado则做为同位语，实际上可以简化为an area做为同位语，about the size of Corolado部分作为介词短语修饰an area。这样理解似乎就好多了。
an area about the size of
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