现在完成时练习

现在完成时用于指代已完成的动作或状态。这些时态表示一个在过去开始并持续到现在发生的事件。

它表示事件在现在仍然未完成。让我们看看下面的例子

• David has done his job.
• You have come just in time.

如何构成现在完成时？

现在完成时的结构非常简单。在这些时态中，我们使用 Has/ Have，以及动词的第三种形式。

Has/ Have 的规则

• 对于单数主语 (He, She, It)，我们使用 Has。
  • He has resigned from his post.
  • Renee has not yet learned the first lesson.
• 对于复数主语 (We, They, These, Those)，我们使用 Have。
  • We have not gotten the Diwali bonus.
  • They have gone to the carnival with their family.
• 'I' 是一个特殊的单数主语，我们与 I 一起使用 Have。
  • I have given up my studies before the annual examination.

一般/肯定现在完成时的规则

在一般现在完成时中，我们使用 has 或 have 以及动词的过去分词形式。

主语 + Has/ Have + 动词第三形式 + 宾语。

• 以下句子看起来像是现在简单时，但这些句子是现在完成时，因为其中出现了时间段。
  • These boys have gone to the temple for eight years.
  • I have known him for five years.
• 用于谈论最近发生的事件或动作，并带有 just/'yet' 等词，表示在说话时正在讨论该动作。例如：
  • The train from Washington has just
  • The meeting has not yet
• 用于谈论一个动作，而时间并不重要。例如：
  • I have been to England.
  • She has read all the Harry Potter novels.

否定句规则

在现在完成时的否定句中，我们在 Has/ Have 之后使用 Not 或 Never。

主语 + Has/ Have + Not + 动词第三形式 + 宾语。

• I have not received your invitation card.
• You have not done the all sums.

疑问句规则

• 是非疑问句
  对于这些句子，我们在主语之前或句子开头使用 Has 或 Have。
  Has/ Have + 主语 + 动词第三形式 + 宾语 + ?。
  • Has Kary arrived at the station?
  • Have all the students reached their homes?
• 疑问词类型疑问句
  这些句子以疑问词或 WH 词开头。
  疑问词 + Has/ Have + 主语 + 动词第三形式 + 宾语 + ?。
  • How many people have gone to the exhibition?
  • Where has he put the workbook?
• 在疑问否定句中，我们在句子动词之前使用 not。
  • Has she not gone to meet her grandparents?
  • Why has Alex not yet come?

练习 - 1

用 Has 或 Have 填空。另外，填入动词的过去分词

• The father ________ (come) home.
• Everyone _______ (finish) eating.
• The Boys ______ (give) the exam.
• I _______ (put) on my clothes.
• All the passengers ________ (buy) the tickets.
• I _______ (not receive) salary yet.
• The sun ______ not ______ (set) yet.
• You _____ not _______ (reach) the top of the tree.
• _______ you ______ (send) the application?
• How many boys _____ _______ (give) the exam?
• Why ______ he not ______ (eat)?
• How much money ______ he _________ (withdraw) from the bank?
• _______ he been _______ (bite) by a dog?
• Somebody _______ (cut) my pocket.
• David's father _______ (die) of cholera.
• I _____ not _______ (see) my red jacket. I think I _____ ______ loose it.
• _______ you ______ (eat) the pasta I made?

练习 - 2

按指示更改以下句子。

• Has he just left? (改为否定句)
• I have not made dinner yet. (改为肯定句)
• Have you send the message to the boss? (改为肯定句)
• They have lost their cat. (改为疑问句)
• Have you been to Los Angels? (改为否定句)
• Why have they brought cheap bread and butter? (改为肯定句)
• I have seen the Jungle Book. (改为否定句)
• I have not eaten a cupcake. (改为疑问句)
• Has Kevin found a job yet? (改为肯定句)
• You have not finish your lunch yet. (改为疑问句)
• It has rained a lot this year. (改为否定句)
• My father has had a driving licence. (改为疑问句)
• Have you ever met a film star? (改为肯定句)