标题: OG13 71题 过去时和现在完成时的理解!!! [打印本页] 作者: Lynsey玲 时间: 2013-2-21 20:21 标题: OG13 71题 过去时和现在完成时的理解!!! 71. Along the major rivers that traverse the deserts of northeast Africa, the Middle East, and northwest India, the combination of a reliable supply of water and good growing conditions both encouraged farming traditions that, in places, endure in at least 6,000 years. (A) good growing conditions both encouraged farming traditions that, in places, endure in (B) good growing conditions encouraged farming traditions that have, in places, endured for (C) of good growing conditions have encouraged farming traditions that, in places, endured for (D) of good growing conditions both encouraged farming traditions that have, in places, endured (E) of good growing conditions encouraged farming traditions that have, in places, been enduring for
至于你说的主句用过去时,从句用现在完成时不合理,我似乎没有看到过这个rule呢,觉得还是应该根据context来看的。
下面是一个PREP08上的例子,主句用现在时,从句用了过去完成时。
The first detailed study of magpie attacks in Australia indicates that by the time they reached adulthood, 98 percent of men and 75 percent of women born in the country had been attacked by the birds作者: chongyini 时间: 2013-10-3 16:30
对的!谢谢啊~而且OG-77也是
A 1972 agreement between Canada and the United States reduced the amount of phosphates that municipalities had been allowed to dump into the Great Lakes.
(A) reduced the amount of phosphates that municipalities had been allowed to dump
(B) reduced the phosphate amount that municipalities had been dumping
(C) reduces the phosphate amount municipalities have been allowed to dump
(D) reduced the amount of phosphates that municipalities are allowed to dump
(E) reduces the amount of phosphates allowed for dumping by municipalities
答案选D,主句用的过去式,从句用的现在式,果然要看context~ 作者: Lynsey玲 时间: 2013-10-3 18:08
chongyini 发表于 2013-10-3 16:30
对的!谢谢啊~而且OG-77也是
A 1972 agreement between Canada and the United States reduced the amoun ...