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请问代词什么情况下可以指代同一个名词的含义但属于不同的时间？？ 什么情况下不能指代同一个名词不同时间的？？。。 一直不懂，比如说什么事情过了几年就不是同一个事情了就不能用代词了
27，Since 1990 the global economy has grown more than it did during the 10000 years from the beginning of agriculture to 1950. A. Since 1990 the global economy has grown more than it did during the 10000 years from the beginning of agriculture B. Since 1990 the growth of global economy has been more than that during 10000 years, from when agriculture began A: correct，it指代economy, did 指grow的过去时 B: growth has been more than growth，逻辑上不太通顺，增加一些形容词会好比如more fast; from when = since , 不简洁
注意：比较对象it，that用法的区别，it, they 用来同一个抽象名词的含义但属于不同的时间等，比如economy是一个时间范围内的抽象词，可以用it或they替代；that指不同的事物，比如我的钱包和你的钱包，虽然都是钱包但属于不同所有人的事物。
29. There are hopeful signs that we are shifting away from our heavy reliance on fossil fuels: more than ten times as much energy is generated through wind power now than it was in 1990
29. There are hopeful signs that we are shifting away from our heavy reliance on fossil fuels: more than ten times as much energy is generated through wind power now than it was in 1990
29. There are hopeful signs that we are shifting away from our heavy reliance on fossil fuels: more than ten times as much energy is generated through wind power now than it was in 1990A) generated through wind power now than it was B) generated through wind power now as it was C) generated through wind power now as was the case D) now generated through wind power as it was E) now generated through wind power than was the case答案：A: than和as不平行
B: it 不能指代energy，否则就是相同的能量被用了两次？？？？？-----那it 改成that对不对？？？ C: the case指代energy D: it 不能指代energy E: than和as不平行
A: than和as不平行
B: it 不能指代energy，否则就是相同的能量被用了两次？？？？？-----那it 改成that对不对？？？ C: the case指代energy D: it 不能指代energy E: than和as不平行
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发表于 2007-3-30 20:34:00
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