现在完成时

现在完成时在第8单元讲解。

The present perfect is covered in Unit 8 .

现在完成时总是一类现在时态。

The present perfect is almost a kind of present tense .

它们是用作现在完成时和过去完成时的助动词。

They are used as auxiliaries to the present and past perfect tenses .

现在完成时的基本结构是“have/has+动词过去分词”。

This is formed with have / has + a past participle verb .

在这里have是辅助动词而completed是主要动词，havecompleted是现在完成时。

Here have is the auxiliary verb and completed is the main verb ; have completed is the present perfect tense .

这些年我只带孩子，无所事事。（现在完成时）

I 've stuck at home with my baby these years .

用现在完成时的被动语态改写下列句子。

Rewrite the following sentences using the Present Perfect Passive Voice .

使用现在完成时访问生活经历。

Use the present perfect to inquire about life experiences .

那些练习题都是跟一般过去时和现在完成时有关的。

They were all concerning about the past tense and the present perfect .

此句用现在完成时表明“恶劣的天气使我们的建筑计划耽搁了两个星期”。

The bad weather has already set back our building plan by two weeks .

学习正确使用现在完成时不是容易的事。

It is not easy to learn to use the present perfect tense correctly .

法语里没有和英语中的现在完成时完全对应的时态。

There is no exactly equivalent French tense to the present perfect tense in English .

与现在完成时相比，它强调动作继续进行或刚刚结束。

My daughter has been working here for five years and will continue doing so .

一般过去时还是现在完成时？

Past simple or present perfect ?

然而，与以往研究结果不同的是，中国大学生在使用现在完成时的时候对规则动词的正确使用率和标记率均高于不规则动词。

Regular verbs exhibit higher probability than irregular verbs in the marking of the present perfect .

语境支持与二语形式学习&中国学生英语现在完成时习得研究

Study of Contextual Support in Learning L2 Forms : EFL Learning of the English Present Perfect

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。

Change these sentences into the Present Perfect Passive , putting the verbs into the correct forms .

现代德语过去时与现在完成时的优先性探讨

The Survey of the Priority of the Simple Past Tense over the Present Perfect Tense in Modern German

随着工业的发展，出现了污染问题。（一般过去时，或现在完成时）

Along with the development of industry , came ( has come ) the problem of environmental pollution .

你能在文章中找出两个以上与现在完成时的被动态有关的句型么？

Can you pick out more than two sentences in the present perfect voice from the reading passage ?

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。

The present perfect simple is often used to talk about past actions and events which are completely finished .

后者倾向于在开头用现在完成时描述研究背景。

They have an inherent propensity to use the Present Perfect to give background knowledge in the first sentence .

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。

We use the present perfect tense to talk about something that happened at an indefinite time in the past .

造现在完成时的句子，我们通常会造现在时态的句子。

When we make a present perfect sentence , we could usually make a present tense sentence about the same situation .

现在完成时用来表达开始于过去但仍在现在持续的动作。

The present perfect is used to express an action that started in the past but still continues in the present .

结果发现，这三种语言因素对现在完成时的使用都有显著影响。突显度不同的规则动词和不规则动词在现在完成时的正确使用中表现出较大的差别。

Chi-square test results reveal that all the three linguistic factors exert significant effects on the use of the present perfect .

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 also use the present perfect to talk about a series of repeated actions which have happened up to the present .

现在完成时也用于长久的行为和状态其始于过去而持续到最近。

The present perfect is also used for long actions and situations which started in the past and went on until very recently .

划出课文中所有一般过去时、现在完成时和现在完成进行时的动词。

Underline all the verbs in the passage which tell us what happened , what has happened , and what has been happening .

这个学期，我们学到了过去时，现在完成时，过去完成时和将来时等。

And will learn The simple past tense , The present perfect tense , The past perfect tense as well as The future tense .