101. (29777-!-item-!-188;#058&004380)
The electronics company has unveiled what it claims to be the world's smallest network digital camcorder, the length of which is that of a handheld computer, and it weighs less than 11 ounces.
(A) to be the world's smallest network digital camcorder, the length of which is that of a handheld computer, and it weighs
(B) to be the smallest network digital camcorder in the world, which is as long as a handheld computer, weighing
(C) is the smallest network digital camcorder in the world, which is as long as a handheld computer, and it weighs
(D) is the world's smallest network digital camcorder, which is as long as a handheld computer and weighs
(E) is the world's smallest network digital camcorder, the length of which is that of a handheld computer, weighing
key D
key D
61. (27648-!-item-!-188;#058&003611)
Researchers in Germany have unearthed 400,000-year-old wooden spears from what it appears was an ancient lakeshore hunting ground as stunning evidence of human ancestors who systematically hunted big game much earlier than believed.
(A) it appears was an ancient lakeshore hunting ground as stunning evidence of human ancestors who
(B) it appears had been an ancient lakeshore hunting ground and is stunning evidence that human ancestors
(C) it appears to have been an ancient lakeshore hunting ground and is stunning evidence that human ancestors
(D) appears to be an ancient lakeshore hunting ground, stunning evidence that human ancestors
(E) appears that it is an ancient lakeshore hunting ground, stunning evidence
of human ancestors who
keyD
这两道题都用了what 从句，101说it claim做插入语，为什么 61中的 it appears不能作插入语呢？
昨晚写完去睡觉时候就发觉不对了，我再看看......
(C) it appears to have been an ancient lakeshore hunting ground and is stunning evidence that human ancestors
C的错误在and后面的谓语动词其实不和前面的主语搭配，而是和ancient lakeshore hunting ground搭配，所以是一个错误的定语从句表达
而且如果 it appears做插入语的话，那么去掉后是what to have been ，动词时态不对
应该这样改
it appears is an ancient lakeshore hunting ground， stunning evidence that human ancestors
我觉得就对了
做GWD18－31,与Prep2-49几乎如出一辙。里面也用到what这个知识点。于是把这3个题目（prep2-49/61/101放在一起进行了比较）。得出了what用法的一点小结。
61.Researchers in Germany have unearthed 400,000-year-old wooden spears from what
appears to be an ancient lakeshore hunting ground, stunning evidence that human ancestors systematically hunted big game much earlier than believed.
that/what/which/who…等引导的从句中，that/what/which/who等词汇本身充当从句主语。这是破解版里的解释。说明因为what it appears从句里面出现两个主语错，所以排除A/B/C.
101.The electronics company
has unveiled
what (it claims) is the world's smallest network digital camcorder, which
is
as long as a handheld computer and weighs less than 11 ounces.
此题不用what it claims to …来排除选项B，主要是因为it可以做形式主语。此处的it claims to…与61题中的it appears有区别——这是我的理解。
不知道有否说清楚。我自己也被这几题搞得很晕。
接下来我会把49题贴出来。
Between 1990 and 2000 the global economy grew more than it did during the 10,000 years from the beginning of agriculture to 1950.
A. Between 1990 and 2000 the global economy grew more than it did during the 10,000 years from the beginning of agriculture
B. Between 1990 and 2000 the growth of the global economy was more than that during 10,000 years, from when agriculture began
C. The growth of the global economy between 1990 and 2000 exceeds that which had been for 10,000 years from the beginning of agriculture
D. The growth of the global economy between 1990 and 2000 exceeds what it has been for 10,000 years, from when agriculture began
E. The growth of the global economy between 1990 and 2000 exceeded what it did for the 10,000 years from the beginning of agriculture
49.Since 1990 the global economy has grown more than it did during the 10,000 years from the beginning of agriculture to 1950.
(A) Since 1990 the global economy has grown more than it did during the 10,000 years from the beginning of agriculture
(B) Since 1990 the growth of the global economy has been more than that during 10,000 years,from when agriculture began
(C) The growth of the global economy since 1990 exceeds that which had been for 10,000 years from the beginning of agriculture
(D) The growth of the global economy since 1990 exceeds what it has been for 10,000 years, from when agriculture began
(E) The growth of the global economy since 1990 exceeds what it did for the 10,000 years from the beginning of agriculture
AlienX看了你的这个回帖，让我加深了对what从句这个知识点的理解——指代！也是一个很头痛的语法点啊！
非常感谢!我把它粘贴过来，放在此贴中一并复习。
個人理解:
61: what跟it指同一個東西 - an ancient lakeshore hunting ground, 重複所以錯
101: what跟it指同不同東西 - what指the world’s smallest network digital camcorder, it指the electronics company
Dear Nemo11,
哪里不明白，我们再讨论。
加油！
zjpopo mm,我今天下午查了字典，可是都没有这2种用法，艾，可能高中英语基本知识没学好，只好现在补，朦胧记得高中讲过appear的几种用法，what的用法，可是想不起来。
如果有本电子版的正式的语法书就好了~
AlienX的解释看了，还是不能特别认同，AlienX表拍我啊~
zjpopo mm,我今天下午查了字典，可是都没有这2种用法，艾，可能高中英语基本知识没学好，只好现在补，朦胧记得高中讲过appear的几种用法，what的用法，可是想不起来。
如果有本电子版的正式的语法书就好了~
AlienX的解释看了，还是不能特别认同，AlienX表拍我啊~
Dear Nemo11，
你所言“没有这2种用法”？是指什么？其实这几题的一个迅速排除无关选项的关键要素就是AlienX 所说的——指代！
今天又拿起白勇语法书过知识点，我发现自己的问题是对于SC的错误还是不够敏感，还没有练到火眼金睛。
还得练！
加油！
popo mm我说的是关于what的用法。看来语法差的令人发指了，加油~
popo mm我说的是关于what的用法。看来语法差的令人发指了，加油~
Dear Nemo11,
刚发现一处宝贝。看看这个链接
http://forum.chasedream.com/dispbbs.asp?BoardID=23&ID=47393
把WHAT替换成thing that来理解就好了,其中THING指代前面的主语....
把WHAT替换成thing that来理解就好了,其中THING指代前面的主语....
what = the thing which 不能用 that 因为 which 需要再从句中充当成分
101. (29777-!-item-!-188;#058&004380)
The electronics company has unveiled what it claims to be the world's smallest network digital camcorder, the length of which is that of a handheld computer, and it weighs less than 11 ounces.
(A) to be the world's smallest network digital camcorder, the length of which is that of a handheld computer, and it weighs
(B) to be the smallest network digital camcorder in the world, which is as long as a handheld computer, weighing
(C) is the smallest network digital camcorder in the world, which is as long as a handheld computer, and it weighs
(D) is the world's smallest network digital camcorder, which is as long as a handheld computer and weighs
(E) is the world's smallest network digital camcorder, the length of which is that of a handheld computer, weighing
key D
key D
用 the thing which 替换
what it claims is the world's smallest network digital camcorder = the thing which it claims is the world's smallest network digital camcorder
其中 which 充当宾语
Researchers in Germany have unearthed 400,000-year-old wooden spears from what it appears was an ancient lakeshore hunting ground as stunning evidence of human ancestors who systematically hunted big game much earlier than believed.
(A) it appears was an ancient lakeshore hunting ground as stunning evidence of human ancestors who
(B) it appears had been an ancient lakeshore hunting ground and is stunning evidence that human ancestors
(C) it appears to have been an ancient lakeshore hunting ground and is stunning evidence that human ancestors
(D) appears to be an ancient lakeshore hunting ground, stunning evidence that human ancestors
(E) appears that it is an ancient lakeshore hunting ground, stunning evidence
of human ancestors who
keyD
这两道题都用了what 从句，101说it claim做插入语，为什么 61中的 it appears不能作插入语呢？
用 which 替换
(A) what it appears was an ancient lakeshore hunting ground = the thing which it appear was an ancient lakeshore hunting ground
(D) what appears to be an ancient lakeshore hunting ground = the thing which appear to be an ancient lakeshore hunting ground
从语法上讲 A 中的 what 使用没错，it 无指代，即便是向后指代，it = an ancient lakeshore hunting ground 重复
所以 D 更简洁
The electronics company has unveiled what it claims to be the world's smallest network digital camcorder, the length of which is that of a handheld computer, and it weighs less than 11 ounces.
(A) to be the world's smallest network digital camcorder, the length of which is that of a handheld computer, and it weighs
(B) to be the smallest network digital camcorder in the world, which is as long as a handheld computer, weighing
(C) is the smallest network digital camcorder in the world, which is as long as a handheld computer, and it weighs
(D) is the world's smallest network digital camcorder, which is as long as a handheld computer and weighs
(E) is the world's smallest network digital camcorder, the length of which is that of a handheld computer, weighing
what it claims
it 指代company, 不是插入语
61. (27648-!-item-!-188;#058&003611) Researchers in Germany have unearthed 400,000-year-old wooden spears from what it appears was an ancient lakeshore hunting ground as stunning evidence of human ancestors who systematically hunted big game much earlier than believed. (A) it appears was an ancient lakeshore hunting ground as stunning evidence of human ancestors who (B) it appears had been an ancient lakeshore hunting ground and is stunning evidence that human ancestors (C) it appears to have been an ancient lakeshore hunting ground and is stunning evidence that human ancestors (D) appears to be an ancient lakeshore hunting ground, stunning evidence that human ancestors (E) appears that it is an ancient lakeshore hunting ground, stunning evidence what it appears it 无法指代复数 spears 如果改成 what they appear was是对的, they 和what 不是重复, 即they appear from what was an ancient lakeshore 有what 出现要求有谓语，如果有另一主语出现，则要求两套谓语。（死记硬背就行了)
of human ancestors who
The electronics company has unveiled what it claims to be the world's smallest network digital camcorder, the length of which is that of a handheld computer, and it weighs less than 11 ounces.
(A) to be the world's smallest network digital camcorder, the length of which is that of a handheld computer, and it weighs
(B) to be the smallest network digital camcorder in the world, which is as long as a handheld computer, weighing
(C) is the smallest network digital camcorder in the world, which is as long as a handheld computer, and it weighs
(D) is the world's smallest network digital camcorder, which is as long as a handheld computer and weighs
(E) is the world's smallest network digital camcorder, the length of which is that of a handheld computer, weighing
PREP解释上说如果后面跟is，it claims就看成是插入语，我觉得把it claims看成插入语很不妥，个人认为如果是what it claims is...后面is部分应该是定语从句省略that的形式，而what it claims to be...应该是claim的宾语＋宾补的形式，请各位NN指教这样的看法是否正确。
what = the thing which 不能用 that 因为 which 需要再从句中充当成分
the thing that与the thing which有区别么？
The electronics company has unveiled what it claims is the world’s smallest network digital camcorder, which is as long as a handheld computer and weighs less than 11 ounces.
Researchers in Germany have unearthed 400,000-year-old wooden spears from what it appears was an ancient lakeshore hunting ground as stunning evidence of human ancestors who systematically hunted big game much earlier than believed.
还有一个问题，第一个句子it指代company没错，what在主句和从句中都作宾语，unveiled what 和what it claims is
第二个句子，it明显没有指代对象么，我我觉得这个what从句和前面一个性质上有点不一样，这个what有指代对象，就是指代wooden spears ，再有it就重复了
Researchers in Germany have unearthed 400,000-year-old wooden spears from what appears to be an ancient lakeshore hunting ground, stunning evidence that human ancestors
是不是能这样解释,第一个句子中what=the thing which,等于是which引导了一个定语从句,which在该从句中做宾语,所以不能省,因为省了就没主语了.
第二个句子中what=the thing which,which在后面的定语从句中做主语,就省略了IT了.否则意思重复了.
这样大概好理解点,但是现实考试的时候不晓得有没有NN总结出什么规律来,否则这样做题速度太慢了.
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