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

• To grasp the Present Perfect and the Irregular verbs 'past tense& past participle tense.
  掌握现在完成时态以及不规则动词的过去时态和过去分词。
• It is not easy to learn to use the present perfect tense correctly.
  学习正确使用现在完成时不是容易的事。
• 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。
• 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。
• Can you pick out more than two sentences in the present perfect voice from the reading passage?
  你能在文章中找出两个以上与现在完成时的被动态有关的句型么？
• When talking about current employment be careful to use the present perfect or present perfect continuous.
  谈起目前的就业要小心使用现在时。
• You'll be able to use the present perfect tense for checking up.
  你可以用现在进行时态去检查。
• 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。
• 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 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。