Prep-232. (TTGWD4-Q1) The Acoma and Hopi are probably the two oldest surviving Pueblo communities, both dating back at least a thousand years. A. both dating B. both of which have dated C. and each has dated D. and each one dating E. each one of which date 语法笔记解释: B.which指代Pueblo communities,定语从句不及同位语简洁;date的现在完成时有潜在含义说“以后都不是追溯到1000年以前了”,要用一般现在时或者分词形式,分词形式的潜在时态与主句一致。 难道这里不能解释说Have dated 表示 date的影响还在持续,还一直都可以回溯1000年 -- by 会员 deityc (2011/11/8 20:50:29)
我想不能,因为date作为这个意思是你在发生动作的当时去做的
此外,分享一段ron大神对完成时的及时
"present perfect = still going" is generallyrestricted to sentences in which the actual timeframe is given. for instance: i have had the flu --> by default, this means that i have had the fluat some time in the past (and that this is somehow relevant to thecurrent conversation). i have had the flu for the last two weeks --> this is"still going".
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