When a ton of wheat was being moved from Buffalo to New York City before the opening of the Erie Canal in 1825, it took three weeks and cost $100, but when the canal was used, it took less than eight days and cost less than $6.
这道题答案是C,我是用排除法选的. 但不十分清楚为什么对.第一个句子的主语是什么,是moving a ton of wheat from Buffalo to New York City 吗? 现在分词可以做主语吗? 谢谢!
这里可能是动名词
不是分词，分词的话就得有修饰对象了
moving在这里是动名词，不是现在分词。
关于这句话我有个小问题，cost的过于时也是cost吗？还是这里用的是一般现在时？
过去时和完成时均为costed，这里是一般现在时。
类似例子如下：
Participating in the strike cost me my job.
参加罢工而使我失去工作。
过去时和完成时均为costed，这里是一般现在时。
类似例子如下：
Participating in the strike cost me my job.
参加罢工而使我失去工作。
mm笔误了
cost/cost/cost
原型/过去式/过去分词
刚刚查了一下，在一般情况下cost的原型、过去时、过去分词都为cost
但是在作“估计...的成本”解时过去时及过去分词为costed,如 The builder costed the job at $150.（朗文英语双解词典）
动名词做主语,大全中也有
C the best 大全311例
1. Foreign investors, because of their growing confidence in their capability for making profitable investments in the United States, have been led to move from passive involvement in commercial real estate partnerships to active development of their own increasingly ambitious projects.
(A) Foreign investors, because of their growing confidence in their capability for making profitable investments in the United States, have been led
(B) Foreign investors, growing confident about their capability for making profitable investments in the United States, has led them
(C)
Growing confidence in their ability to make profitable investments in the United States has led foreign investors
(D) Growing confidence in their ability for making profitable investments in the United States have led foreign investors（C）
(E) Growing confident about their capabilities for making profitable investments in the United States, foreign investors have been led
我想文章是强调move这个过程，所以用moving，而to move就是表示移动（可以是就移动了一下下而已）。请指教
动名词做主语,大全中也有
C the best 大全311例
1. Foreign investors, because of their growing confidence in their capability for making profitable investments in the United States, have been led to move from passive involvement in commercial real estate partnerships to active development of their own increasingly ambitious projects.
(A) Foreign investors, because of their growing confidence in their capability for making profitable investments in the United States, have been led
(B) Foreign investors, growing confident about their capability for making profitable investments in the United States, has led them
(C)
Growing confidence in their ability to make profitable investments in the United States has led foreign investors
(D) Growing confidence in their ability for making profitable investments in the United States have led foreign investors（C）
(E) Growing confident about their capabilities for making profitable investments in the United States, foreign investors have been led
偶觉得不是动名词做主语, 是动名词这个句子是主语.
欢迎讨论
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我还是觉得A比较好啊，
it 的用法，it takes sb sometime to do sth.前后平行。。。
was being moved 可能是强调当时运送的过程
大家继续讨论～～
When a ton of wheat was being moved from
我第一次做这题是怎么都没想明白，第二次做的时候觉得那个it很有问题，指代有问题
而Ｃ就很好的避免了，改成the move很清楚
(B)不對是因為it指代不同事物嗎?
可是我覺得it在(B)是做虛主詞之用
而且前後平衡 兩個句子中間用分號隔開
為什麼不選?
我个人浅见认为这题
答案是C
A B 错
是因为it不作为指代介词短语
这在pp里面也有提到
PP 新题16
Less than 35 years after the release of African honeybees outside Sao Paulo, Brazil, their descendants, popularly known as killer bees, had migrated as far north as southern Texas.
答案是A
D) it took less than 35 years from the release of African honeybees outside Sao Paulo, Brazil, when
E) it took less than the 35years after the time that African honeybees were released outside Sao Paulo, Brazil, and then
我选E， 觉得，如果选C的话就会改变原句的意思，原句有but转折，如果选C的话，转折的意思没有了阿
A错，it有问题，究竟是指代move还是前面整个短语？如果是指代move就是指代不清有歧义；如果是短语就更错，it决计不能指代短语。
C比较而言稍好，在剩余选项中挑选之后也只能选它了，但是觉得on the canal稍微不是很顺眼。
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