我感觉是这样的，目前来看having错误率高达95%，因为我的sc准确率低于95%，所以如果我见到having，我就直接当它是错的，反正sc就是拼概率的=。=
Some patients who do not respond to therapies for depression may simply have received inadequate treatment, having, for example, been prescribed a drug at a dosage too low to be effective or having been taken off a drug too soon.
(A) having, for example, been prescribed a drug at a dosage too low to be effective or having been
(B) having, for example, a drug prescription that was ineffective because the dosage was too low, or being
(C) as, for example, having too low of a dosage of a prescribed drug for it to be effective, or being
(D) when they have, for example, been prescribed too low a drug dosage for it to be effective, or were
(E) for example, when they have a drug prescription with a dosage too low to be effective, or been
想问一下这里句末的,having是做状语吗，感觉既不像结果，也不像伴随，为什么这里可以用，doing？
我觉得是做同位语解释inadequate treatment
我选A...答案是什么？
A和E还真的有点分不清.
请指教E的错误,是应为or的平行结构嘛?
A. 正确。
B. Having a drug prescription that was ineffective because the dosage was too low, 句子罗嗦；
having…与being…主动与被动语态不平行。
C. As表示原因，作连词连接原因状语从句，要求是完整的句子，该选项as后面不能构成句子
D. When引起时间状语从句，表达的意思与原句不同；
E. When引起时间状语从句，表达的意思与原句不同；or后面的完整结构应为have been taken，此
处的have为助动词，而前面have a drug…中的have为实意动词，不能共用。
句子结构：Some patients who… may simply have received inadequate treatment, having been… or
having been…
划线部分前面为句子的主干结构，having引起状语修饰句子。having been prescribed or having been
taken off，or连接的两部分平行对称，for example为插入语。
其他都比较好理解，但是这个状语修饰句子不是很清楚。
having been presecribed的主语应该是patients,因此排除结果状语的可能性，但是这个动作应该不算是伴随谓语动词，所以也不是伴随。
我觉得也可能是同位语，状语中应该没有解释说明的作用。
那就是说句末出现,doing不能光考虑是否伴随，结果，还应该考虑句末宾语同位语的可能性？
我就是看到having就排除,结果这题挂了.^_^
我认为
(D) when they have, for example, been prescribed too low a drug dosage for it to be effective, or were
When引导时间状语从句.
(E) for example, when they have a drug prescription with a dosage too low to be effective, or been
同上
they没有指代，
原来是这样 有道理~~| 欢迎光临 ChaseDream (https://forum.chasedream.com/) | Powered by Discuz! X3.3 |