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
- 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。 - 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。 - 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。 - 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 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。 - 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。 - 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。 - 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。