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

• They were all concerning about the past tense and the present perfect.
  那些练习题都是跟一般过去时和现在完成时有关的。
• 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。
• The present perfect tense emphasizes the effect of the past action on the present.
  现在完成式强调过去所发生的事情对现在的影响。
• ` 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。
• 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。
• By combining theories and experiment, this thesis compares and analyzes the features in the process of learning English present perfect by both Chinese Han students and Chinese ethnic Korean students.
  本文通过理论和实验相结合的方法，对比分析单、双语人学习英语现在完成体的特征。
• 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。
• Talk about the uses of the present perfect tense.
  表示过去发生的事对现在仍有影响。
• When we want to talk about actions or situations which started in the past and have continued up to the present, we often use the present perfect to show the connection between past and present.
  要谈论行为或状态其始于过去而持续到现在，经常使用现在完成时表现过去和现在之间的连接。
• 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。