Fortunately ,the White House is starting to pay attention.(幸运的是,白宫开始关注此事了。)
2个重点时态
现在完成时
强调过去发生的动作对现在产生的影响
According to the Canadian Institute for Health Information,prescription drug costs have risen since 1997 at twice the rate of overall health-care spending.(加拿大以来哦信息学会的资料显示,自1997年以来,处方药的费用增长速度时整体医疗费用增长速度的两倍。)
表示过去曾发生的动作或状态,但并不强调其发生的具体时间点
Over the past decade,thousands of patents have been granted for what are called business methods.(在过去的十年间,成千上万的所谓的“商业方法”被授予了专利。
🏁And if scientists have yet to create the mechanical version of science fiction,they have begun to come close.(如果科学家们尚未创造出机械版的科幻小说,那么他们已经开始接近目标了。)
精讲:前半句是由 if 引导的条件状语从句,后半句是主句,表示他们已经开始接近目标。在主句中不想强调begin这个动作发生的具体时间,而且和现在之间有联系,所以采用了现在完成时。
As a description of the next music director of an orchestra that has hitherto been led by musicians like Gustav Mahler and Pierre Boulez,that seems likely to have struck at least some Times readers are faint praise.
过去完成时常见的时间状语有:“by the end of+过去时间点表示“截止到……”、“before+过去时间点”表示“……之前”
其他常见时态
过去将来时——强调以过去为基点,站在过去看将来发生的事。
Also in the early 1900s,French sociologist Durkheim developed a theory of culture that would greatly influence anthropology.
精讲:这是一个主从复合句:主句是French ~~~culture;从句是that would ~~anthropology,是一个由that引导的定语从句。从句中说“这个文化理论会极大地影响人类学”是一个还没有发生的动作,所以要用将来时。整个句子开头的时间基调已经定下,1900s就告诉我们整个句子的时间都以过去为主,所以句子中所体现的将来实际上是一种过去的将来,故使用了过去将来时。