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
- Rewrite the following sentences using the Present Perfect Passive Voice.
用现在完成时的被动语态改写下列句子。 - 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。 - ` 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。 - 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。 - Remember: when using the words'since'and'for'with the present perfect tense, you must follow them with different information.
在这个单元，我们学习了不同的现在时态来强调不同事件的状态。 - 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。 - The present perfect is almost a kind of present tense.
现在完成时总是一类现在时态。 - 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。 - Here have is the auxiliary verb and completed is the main verb; have completed is the present perfect tense.
在这里have是辅助动词而completed是主要动词，havecompleted是现在完成时。