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标题: [求助]885-补充250-104题 [打印本页]

作者: dreadpower    时间: 2003-10-27 15:37
标题: [求助]885-补充250-104题
For some birds the sense of smell appears to play a role in navigation, since pigeons with surgically removed olfactory nerves were found to have increased difficulties in homing.
(A) were found to have increased difficulties
(B) have been found to have increased difficulty
(C) were found to have increasing difficulty
(E) have been found to have increasing difficulties

      这题答案给B,我觉得这里have been 完成时没有必要。用过去时好,表达在过去发生,我选A
       请指点

作者: gemj    时间: 2003-10-27 15:44
用过去时意味着现在就不这样了,显然不妥。
作者: iselibra    时间: 2003-11-5 18:15
以下是引用gemj在2003-10-27 15:44:00的发言:
用过去时意味着现在就不这样了,显然不妥。

那么是否可以这样理解呢:
做过一个试验,然后在这个实验中发现了...
这样就可以用过去式了阿
况且用完成式也的确没有道理阿?

不好意思,把这么老的贴子翻出来
作者: nina23    时间: 2003-11-5 22:01
1,there is only one difficulty----homing,so difficulties are wrong.
2,form context, the main clause is just a conclusion of the (since pigeons with surgically removed olfactory nerves were found to have increased difficulties in homing.)
namely,it is the sub-clause influence the main clause,the usage of 完成式 is perfect!

作者: iselibra    时间: 2003-11-5 22:10
以下是引用nina23在2003-11-5 22:01:00的发言:
1,there is only one difficulty----homing,so difficulties are wrong.
2,form context, the main clause is just a conclusion of the (since pigeons with surgically removed olfactory nerves were found to have increased difficulties in homing.)
namely,it is the sub-clause influence the main clause,the usage of 完成式 is perfect!


答案是B阿,是现在完成式
作者: tintin2003    时间: 2003-12-11 15:03
有一文法difficulty in用法中的difficulty是做不可数的名词,也可这样解释吧!
作者: solome    时间: 2003-12-11 15:40
以下是引用tintin2003在2003-12-11 15:03:00的发言:
有一文法difficulty in用法中的difficulty是做不可数的名词,也可这样解释吧!


是这样的,刚查了longman

difficult:
1. [U in] the quality of being difficult; trouble
2. [C] something difficult; a trouble

作者: best555tw    时间: 2005-3-18 19:59
increasing 跟 increased 意思上的差別是什麼,為什麼用increasing
作者: ethyl    时间: 2005-4-3 03:09
increasing表示(正在)上升的,increased 表示已经完成的
作者: 顾风    时间: 2006-5-27 14:20

补充:difficulty 与in 连接时为不可数名词。

与with连接时用 difficulties


作者: lesterlau    时间: 2006-5-27 16:25
那difficult in和difficulties with在意思上有没有区别呢?
作者: smileday    时间: 2006-7-22 14:35
以下是引用nina23在2003-11-5 22:01:00的发言:
1,there is only one difficulty----homing,so difficulties are wrong.
????
2,form context, the main clause is just a conclusion of the (since pigeons with surgically removed olfactory nerves were found to have increased difficulties in homing.)
namely,it is the sub-clause influence the main clause,the usage of 完成式 is perfect!

關於第二點, 看了但不知是什麼意思?

是不是說:  所以--用現在式, 因為--就要用現在完成式,(不能用過去式)

有這樣的理論是嗎?

那位能幫忙comfirm一下?

嚴重3Qx..


作者: ustchero    时间: 2007-11-29 07:03

这题个人认为

如果A 改成 were found to have increased difficulty 是最合适的

因为原题没有明显的现在完成时时间标志,而且have been found 用现在完成时 表示 持续的发现动作 不如用 were found


作者: rockmax    时间: 2008-7-22 21:25
以下是引用ustchero在2007-11-29 7:03:00的发言:

这题个人认为

如果A 改成 were found to have increased difficulty 是最合适的

因为原题没有明显的现在完成时时间标志,而且have been found 用现在完成时 表示 持续的发现动作 不如用 were found

agree

but why choose B,   ?     Why is ' have been found' ?


作者: flavorflave    时间: 2008-12-28 04:42
以下是引用顾风在2006-5-27 14:20:00的发言:

补充:difficulty 与in 连接时为不可数名词。

与with连接时用 difficulties

能做一下补充嘛?i'm not fully convinced, i still don't see why we can't use difficulties. it's unstated in the question whether it's one difficulty or many difficulties. THANXXX


作者: lijiahui0422    时间: 2009-7-22 09:35
过去时是不能选的,除非以前是现在不是,而这个地方用完成时和现在时的区别不太大,用现在时也可以,但过去时不行
作者: zxygtx    时间: 2010-1-9 11:04
I think the main fault is "increasing difficulty", the adj. form of increase which modify n. in front of the n. should be increased, rather than incresing. Thus C & D are eliminated.
Moreover, the question is only talking about one kind of difficulty, thus options which use difficulties should be eliminated. Namely, we could only choose B.




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