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
- `I have finished' is an example of the present perfect
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 a series of repeated actions which have happened up to the present.
我们也使用现在完成时谈论一系列重复的行为，这些行为到现在还发生。 - We use the present perfect tense to talk about something that happened at an indefinite time in the past.
我们使用现在完成时谈论发生在过去某个不确定的时间的事情。 - The question is in the present perfect continuous so you will answer with the verb in the continuous.
这个问题是用现在完成进行时来提问的，所以回答时也用进行时态的这个动词。 - 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。 - The present perfect is almost a kind of present tense.
现在完成时总是一类现在时态。 - As one of the most important and confusing grammatical tenses in high-school English, present perfect tense brings about much perplexity to both teachers and students.
现在完成时态是中学英语语法中的重点和难点，经常给师生带来困惑。 - 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。 - Talk about the uses of the present perfect tense.
表示过去发生的事对现在仍有影响。 - 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。