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。 - ` 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。 - 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； - Talk about the uses of the present perfect tense.
表示过去发生的事对现在仍有影响。 - 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。 - 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 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。 - Use the present perfect to inquire about life experiences.
使用现在完成时访问生活经历。 - 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。 - 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。