求助OG13，81题,谢谢各位牛牛~

hu0915

Fossils of the arm of a sloth found in Puerto Rico in 1991, and dated at 34 million years old, made it the earliest known mammal of the Greater Antilles islands.

A. sloth found in Puerto Rico in 1991, and dated at 34 million years old, made it the earliest known mammal of
B. sloth, that they found in Puerto Rico in 1991, has been dated at 34 million years old, thus making it the earliest mammal known on
C. sloth that was found in Puerto Rico in 1991, was dated at 34 million years old, making this the earliest known mammal of
D. sloth, found in Puerto Rico in 1991, have been dated at 34 million years old, making the sloth the earliest known mammal on
E. sloth which, found in Puerto Rico in 1991, was dated at 34 million years old, made the sloth the earliest known mammal of
想问一下各位牛牛，我看的是新东方李希强老师的OG分析，上面这题写的是making前面没有thus,thus对应and，想问一下，难道没有thus和分词一起出现的形式吗，一定是and thus?还有介词it的指代，为什么不是就近指代sloth,而是优先指代arm?

hu0915

你解释的很清楚，谢谢啦~~

yakev6

这有个例子
Pioneered by scientists at Los Alamos National Laboratory, BEAM robots are not programmed to walk; instead they use brainlike circuits called neural networks to learn to walk through trial and error.

yakev6

可不可以这样理解，连接副词也可以接两个完整的句子，但是一定要像你给我的那个网页上写的SVO分号conj adv逗号，SVO。如果是分号换成逗号的话，就一定要加and了？？？

-- by 会员 hu0915 (2012/9/17 17:04:33)

这点我也一直存疑，感觉上SVO不能用链接副词链接，除非有其他连词或者分号。

hu0915

嗯，我理解你的意思，那你这样说的话，其实默认了it指代的是sloth了啊。但it还有可能指代arm。。。。。。

hu0915

对的，捂脸，我问的问题都比较弱，大家多担待~~

hu0915

可不可以这样理解，连接副词也可以接两个完整的句子，但是一定要像你给我的那个网页上写的SVO分号conj adv逗号，SVO。如果是分号换成逗号的话，就一定要加and了？？？

yakev6

...好吧原来lz就是丢接线板那个mm啊...久仰久仰

yakev6

个人感觉没问题。
但是thus肯定不能省。
当连接副词连接的是两个adj性质的成分时候，可以省略and
First opened in 1892, then rebuilt in 1900, the federal immigration station on Ellis Island processed nearly three quarters of all immigrants entering the United States in the first quarter of the twentieth century.
opened... then rebuilt ... SVO

conjunctive adverb
http://www.chompchomp.com/terms/conjunctiveadverb.htm

Many entomologists say that campaigns to eradicate the fire ant in the United States have failed because the chemicals that were used were effective only in wiping out the ant’s natural enemies, thus making it easier for the ant to spread.

-- by 会员 yakev6 (2012/9/17 16:05:17)

谢谢，如果这句话改成
Many entomologists say that campaigns to eradicate the fire ant in the United States have failed because the chemicals that were used were effective only in wiping out the ant’s natural enemies, and thus the eradication of the ant’s natural enemies makes it easier for the ant to spread.
在语法上对不对呢？

-- by 会员 hu0915 (2012/9/17 16:18:24)

sawayisa

主谓一致直接干掉BCE,A中it指代不清，选D。

-- by 会员 sawayisa (2012/9/17 16:12:00)

我知道it可以指代arm和sloth,那有没有哪个是优先指代的问题呢？

-- by 会员 hu0915 (2012/9/17 16:19:35)

要这样看问题，因为你不知道指代什么，所以它就是有歧义的，其实这个句子本身也是有问题的，found and dated 作定语，后面made,就变成，fossils made the sloth balabala...........而句子原本表达的意义是dated这个动作所导致的结果是made the sloth balabala......