2008-2-166 1. what引导的名词性从句中从句谓语动词的单复数情况： what后面“什么时候用单数,什么时候用复数”根据动词后面的名词的单复数来定. 2. what引导的名词性从句做主语时，主句谓语动词的单复数情况： (1)What在从句中做主语，主句谓语由what从句的谓语决定。 1) What is difficult to understand is A.；What are difficult to understand are A and B.
as+adj.+零冠词+不可数名词+as 对应 prep2-9 (见类似题链接) prep 2-9 The Environmental Protection Agency frequently puts mandatory controls on toxic substances that present as little risk as one in a million chances to cause cancer. (A) as little risk as one in a million chances to cause (B) as little risk as one chance in a million of causing (C) as little risk as one chance in a million that it will cause (D) a risk as little as one chance in a million for causing (E) a risk as little as one chance in a million for it to cause risk不是可数名词吗？
(B) 用了限定性定语从句修饰news，意思就是“信使所遣送的射击”，错误，应该用非限定性修饰 news of shots that was sent by swift messenger 既然，that已经是修饰news 怎么还会是信使所遣送的射击 我觉着这里应该是 that 修饰 news，然后 of shots是一个紧急形式， 因为不放到news 后面，就没地方放了， 而且由于它很短，且谓语动词时单数，所以不会引起歧义
关于分词修饰语的理解 – by tigercaiqunHe hurried to the hall, followed by two guards. 1.当过去分词在句末时，不管有无逗号，都是就近修饰名词; 这个不是和分词作伴随状语有冲突吗？ He hurried to the hall, followed by two guards.
-- by 会员 jaze (2011/5/12 16:13:45)
嗯，那个总结是摘录的，本不想改动，看来还是应该修正下。 当过去分词在句末时，不管有无逗号，一般都是就近修饰名词; 但偶尔也做状语修饰整个句子，如He hurried to the hall, followed by two guards. 修饰情况由逻辑决定。
2008-2-177 For the farmer who … to keep them cool, provided and milked…., Holstein cows will produce……. cool，provided，milked三者并列做keep的宾语的补足语，for the farmers中的for为介词表原因。
(E) Correct；调整句子语序rovided with high-energy feed, and miked regularly, Holstein cows will produce an average of 2,275 gallons of mild each per year for the farmer who takes care to keep them cool。
2-192 I was typing a letter last night. 昨晚我在打一封信?(可能没打完) I typed some letters last night. 我昨晚打了一些信?(已经打完) i was typing some letters 对吗？ 还有 如果说我昨晚打了许多信，可是没有打完 怎么写？ i was typing some letters, but i did not complete them I typed some letters last night, but i did not complete them
-- by 会员 jaze (2011/5/12 16:09:10)
i was typing some letters没问题。 I typed some letters last night, but i did not complete them --> 如果没有后面半个分句潜在含义就表示已经打完了。如果有，就说明没打完。
关于分词修饰语的理解 – by tigercaiqunHe hurried to the hall, followed by two guards. 1.当过去分词在句末时，不管有无逗号，都是就近修饰名词; 这个不是和分词作伴随状语有冲突吗？ He hurried to the hall, followed by two guards.
-- by 会员 jaze (2011/5/12 16:13:45)
嗯，那个总结是摘录的，本不想改动，看来还是应该修正下。 当过去分词在句末时，不管有无逗号，一般都是就近修饰名词; 但偶尔也做状语修饰整个句子，如He hurried to the hall, followed by two guards. 修饰情况由逻辑决定。
-- by 会员 aeoluseros (2011/5/12 19:25:23)
谢谢 aeoluseros 另外
是不是没有这种形式 He hurried to the hall followed by two guards
还有一个知识点， 实在是找不到资料讲这个 2-219 Fossils of the arm of a slothfound in Puerto Rico in 1991, and dated at 34 million years old, made it theearliest 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 就是it，为什么不能指代sloth 解释是说it不能指代介宾短语中的宾语，这是哪个语法点啊， 我怎么没有见过
代词不是指代名词的词吗？ 只要是名词不就可以指代吗？ 代词指代是不是也有层的概念， 比如 s.who published "new world" is well known, and it is a good book to read. 这里it和who中的 那本书，不是一个层，是不是就不能指代那个层中的东西了？
还有一个知识点， 实在是找不到资料讲这个 2-219 Fossils of the arm of a slothfound in Puerto Rico in 1991, and dated at 34 million years old, made it theearliest 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 就是it，为什么不能指代sloth 解释是说it不能指代介宾短语中的宾语，这是哪个语法点啊， 我怎么没有见过
代词不是指代名词的词吗？ 只要是名词不就可以指代吗？ 代词指代是不是也有层的概念， 比如 s.who published "new world" is well known, and it is a good book to read. 这里it和who中的 那本书，不是一个层，是不是就不能指代那个层中的东西了？
-- by 会员 jaze (2011/5/13 8:38:15)
umm...其实解释里面说得不算准确，当非常明确的时候，it是可以指代介宾短语里面的词，但是在这个句子里面不好。判断指代是否清晰是要从读者的角度对象出发考虑的，219中sloth在介宾短语里面，读者在读到后面看到it的时候是根据回忆、或者往回扫视来看it的指代对象的，如果一下子找不到，那么就打破了阅读的流畅性，就是坏句，就是指代不清晰。 s.who published "new world" is well known, and it is a good book to read.这个句子里面，it能够很明确地指代new world，所以是允许的
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rovided with high-energy feed, and miked regularly, Holstein cows will produce an average of 2,275 gallons of mild each per year for the farmer who takes care to keep them cool。
发表于 2011-5-13 08:31:54
