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2019教育高中现在完成时态2课时对比一般过去时讲解共33张PPT数学_图文

时态

时间 + 状态





past

now


future

eating
进行态

eaten
完成态/过去分词
eat
动词原形

past

now

future

were doing


is/am/are doing


will be doing


/were/did

is/am/are/do/does

has/have done

will be/do

past

now

future

I lost my wallet.

一般过去时

I have lost my wallet. 现在完成时

I lost my wallet. 一般过去时 I have lost my wallet. 现在完成时 都说丢钱包,两句有什么差别?

现在完成时 Present perfect
过去的事情 影响了现在

过去的事情 发生在过去 /were/did mple past

past

now


future

I have lost my wallet. 现完:过去的事情 影响了现在

I have lost my wallet. 现完:过去的事情 影响了现在

The definition of present perfect
表示过去发生的动作对现在造成的影响或结果
谓语结构:助动词have/has+动词的过去分词。 否定句的谓语结构:助动词have/has not+过去分词。

The point that you need to know
现在完成时所表示的动作开始于过去, 持续到现在, 也许还会持续下 去。
常与so far, recently, lately近来, already, just, yet, never, up to now, ever since, since then, for a long time, in the last three years等时间状
语连用。

Its question form
一般疑问句:助动词have/has+主语+动词的过去分词。 ? 肯定回答:Yes,主语+have/has. ? 否定回答:No,主语+have/has not.

如何翻译

我娶了她 / 我娶她了。

我在这工作。

I worked here for 3 years. 我以前在这工作过三年。 I have worked here for 3 years. 我已经在这工作三年了。(现在还在)

I worked here in 2017. 我2017年在这工作过。
I have worked here since 2017. 自从2017年我已经在这工作了。(现在还在)
I have worked here since my marriage 1 year ago. 从一年前我结婚,我已经在这工作了。(现在还在这工作)

(非)延续性动词

? 如come, go, die, marry, buy, leave, begin, start, put on, borrow等的 完成时不能与for, since等表示一段时间的短语连用。
如果这类动词要和段时间连用,就必须转变成相应的表示延续性 动作的词/短语。

延续性动词: ? leave die buy ? be away be dead

put on borrow have wear keep

come begin/start be in be on

【考题链接】

—I remember you were a talented pianist at college. Can you play the piano for me? —Sorry, I ____________ the piano for years.

A. don’t play

B. wasn’t playing

C. haven’t played

D. hadn’t played

My good friend __________his hometown since 10 years ago.

A. has left

B. left

C. has been away from

D. was away from

【例句辨析】
? I have bought the calculator for a week. ( ) ? I have woken up for 30 minutes. ( ) ? I have married her for 7 years. ( )
? I have had the calculator for a week. ( ) ? We got married 7 years ago. ( ) ? We have been married for 7 years. ( ) ? It has been 30 minutes since I wake up. ( )

她去上海了。

她去上海了。
She went to Shanghai. She has gone to Shanghai.

她去上海了。
区别:过去时不能告诉你现在,现完时可以告诉你现 在的情况。

She went to Shanghai.

She has gone to Shanghai.

今天早上我没看到那两个熊双胞胎。

今天早上我没看到那两个熊双胞胎。
I didn’t see the twins this morning.
I haven’t see the twins this morning.

今天早上我没看到那两个熊双胞胎。
I didn’t see the twins this morning.
不知道说话人现在是在上午还是。。。
I haven’t see the twins this morning.
说话人现在是在上午

【考题链接】

1. For many years, people ________ electric cars. However, making them has been more difficult than predicted.

A. had dreamed of

B. have dreamed of

C. dreamed of

D. dream of

2. So far this year we ________ a fall in house prices by between 5 and 10 percent.

A. saw B. see

C. had seen

D. have seen

时间

影响

时/态 进行态 ?

一般态 ?

完成态 perfect

过去时

was/were doing 过去进行时态

was/were/did 一般过去时态

现在时 将来时

is/am/are doing 现在进行时态
will be doing 将来进行时态

is/am/are /do/does 一般现在时态
will be/do 一般将来时态

has/have done 现在完成时态

时/态 进行态

一般态

完成态

过去时

was/were doing 过去进行时态

was/were/did 一般过去时态

had done 过去完成时态

现在时 将来时

is/am/are doing 现在进行时态
will be doing 将来进行时态

is/am/are /do/does 一般现在时态
will be/do 一般将来时态

has/have done 现在完成时态
will have done 将来完成时态


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