成人高考高起点英语时态复习资料二成人高考

文章作者 100test 发表时间 2009:01:02 09:29:39
来源 100Test.Com百考试题网


  IV 现在完成时

  一、现在完成时的构成式是have(has)+动词的ED分词。

  1)Research [A]in molecular(分子的)biology has demonstrate [B]phenomenal similarities [C]between [D]humans and apes(类人猿)。

  2)Gore Vidal has steadily pursue [A] a literary career [B]remarkable [C]for its productivity,versatility(多样性) and unpredictability [D] (多变性)。

  3)For centuries large communities of people have living [A]on houseboats in parts [B]of the world where [C]the climate is warm and the waters are calm [D]。

  二、现在完成时表示到现在为止的一段时间内发生的情况或动作,强调的是对现在的影响,可能是已完成的动作,也可表示多次动作的总和,或习惯性的行为和持续的动作。

  4)Ninety eight percent of all animal species [A]in [B]history had [C]died out [D].

  5)The domestic [A]dog,considered to be the first tamed animal,is coexisting [B]with human beings since [C]the days of the cave dwellers [D](居住者)。

  三、如果句中有表示到现在为止这段时间的状语时,用现在完成时,这些时间状语有now,today, this week,this month,this year,现在完成时不和表示具体的时间状语连用,如yesterday,last year等,但可以和always,before, just,in/during the past(few weeks,years,fifty years)连用,这时in表示"过去多少时间",不能用after。

  6)Industrial [A]management is the aspect [B]of business [C]management that was [D]most prominent in the United States in the past eight years.

  7)Learning a foreign language is especially [A]difficult for those [B]who had [C]never learned one before [D].

  四、在有already,as yet,yet,ever,just,never 这类副词作状语的情况下,用现在完成时。

  8)In just [A]the last [B]few years,football is become [C]more popular than baseball in that country [D].

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