present perfect

英 [ˌpreznt ˈpɜːfɪkt]

美 [ˌpreznt ˈpɜːrfɪkt]

n.  现在完成时

牛津词典

noun

• 现在完成时
  the form of a verb that expresses an action done in a time period up to the present, formed in English with the present tense of have and the past participle of the verb, as in I have eaten

柯林斯词典

• 现在完成时的
  In grammar, thepresent perfecttenses of a verb are the ones used to talk about things which happened before the time you are speaking or writing but are relevant to the present situation, or things that began in the past and are still happening. The simple present perfect tense uses 'have' or 'has' and the past participle of the verb, as in 'They have decided what to do'.

英英释义

noun

• a perfective tense used to express action completed in the present
  1. `I have finished' is an example of the present perfect
  Synonym:present perfect tense

双语例句

• The present perfect simple is often used to talk about past actions and events which are completely finished.
  一般现在完成时经常用于谈论过去的行为和事件其完全结束。
• We also use the present perfect to talk about repeated actions in the past.
  我们还使用此时态谈论过去重复的动作。
• The differences between the present perfect and the past simple are complicated and difficult to analyse, and the rules given in grammars are not always very clear or accurate.
  现在完成时和过去时之间的差别分析起来有点复杂和困难，语法的已知规则总不是很明白或精确。在许多欧洲语言里，有现在完成时态；
• The present perfect is almost a kind of present tense.
  现在完成时总是一类现在时态。
• Change these sentences into the Present Perfect Passive, putting the verbs into the correct forms.
  用动词的正确形式将下面的句子变成现在完成时的被动语态。
• They appear more excited when we talk about university life in the United States than when we discuss the correct usage of the present perfect tense.
  与讨论如何正确使用现在完成时相比，当我们谈起美国大学的生活时，他们显得更为兴奋。
• In this lesson, we will practice using the present perfect tense.
  在这节课上，我们将要练习使用现在完成式。
• There is no exactly equivalent French tense to the present perfect tense in English.
  法语里没有和英语中的现在完成时完全对应的时态。
• ` I have finished 'is an example of the present perfect.
  我已经完成了是现在完成时态的一个例句。
• When we talk about past events which have no present importance, we do not use the present perfect.
  谈论过去的事件其对现在不重要，不用现在完成时。