現在完成時

一、知識梳理

要點一：

現在完成時用來表示之前已發生或完成的動作或狀態，但它的影響現在還存在;也可表示持續到現在的動作或狀態。

1.動作在過去發生并持續到現在。I have lived in Jiangyinfor 15 years./since15 yearsago.

2.動作在過去發生并對現在產生影響。I have seen this film before.

3.某個動作從過去到現在已經發生了多次。

He has read this book three times. I have been to Beijing four times.

要點二：

1、

規則變化的過去分詞與過去式的變化一樣，在動詞詞尾加ed;

不規則變化的過去分詞見不規則動詞表，需要同學記憶。

現以see the film為例將現在完成時的肯定句，否定句和疑問句列表如下：

have

肯定句：I/You/We/Theyseen the film. He/She /Itseen the film.

have

否定句：I/You/We/Theynot/ haven’t seen the film.

has

He/ She/Itnot/hasn’t seen the film.

Have

疑問句：I/you/they seen the film? Yes, you/ we/I/they have. No, you/ we/I/they.

Has

he/she/it seen the film? Yes, he/ she/ it has. No, he/ she/ it.

2、

①一般直接在詞尾加上ed。look—looked

②以e結尾的動詞，直接加d。move—moved③以y結尾，y前面是輔音字母的動詞，變y為i，再加ed。carry—carried④部分動詞需雙寫尾字母，加ed。stop—stopped

⑤不規則變化

AAB

原形	過去式	過去分詞	中文
beat	beat	beaten	打敗

ABC

原形	過去式	過去分詞	中文
be	was / were	been	是，在…
begin	began	begun	開始
blow	blew	blown	吹
break	broke	broken	破裂、折斷

ABB

原形	過去式	過去分詞	中文
understand	understood	understood	理解、明白
bring	brought	brought	帶來
build	built	built	建造
burn	burned/burnt	burned/burnt	燃燒

要點三：

用法：現在完成時既涉及過去，又聯系

用法1：

常與just(剛剛)，already(已經)，never(從來沒有)，ever(曾經)，before(以前)，yet(仍然)，once(一次)，twice(兩次)，many times(很多次)，how many times(多少次)，so far(迄今為止)，during the past(last)three years(最近三年來)等連用。

※副詞的位置：

just

①just常用于肯定句中，放在have / has后，He hascome .

never

②never表示否定,放在have / has后, He hasvisited the Great Wall.

ever

③ever用于疑問句中,句型為: Have / Has+主語++過去分詞?“…曾經……過嗎?”用于詢問某人過去的經歷。Have youbeen to the farm?

before

④before用于句末，The woman has never heard of that.

yet

⑤yet用于句末或not之后.(用于否定句和疑問句)Has the train arrived? No, not

already

⑥already用于肯定句, have / has之后或句末.We havefinished it.

So far,

⑦so far用于句首或句末.we have visited the moon.

用法

for 19 years

①for+表示一段時間的詞語I have taught English。

since 1986

②since+表示過去時間點的詞語He has been at this school.

since I was born.

③since+表示過去的時間狀語從句I have lived here

since 20 years ago.

④since+一段時間+ago.I have known him

用法3：

twice

I have been to Beijing.我去過北京兩次。

twice

He has watched the film.這部電影他已經看過兩遍了。

要點四：

現在完成時態中

(for，since，how long, all one’s life)

用的動詞必須是表示延續的情況或動作的動詞，即延續性動詞

。

如：be，have，know，live，work，study，learn，teach，keep，speak，talk，draw，wait，wear，walk，sleep，drive，write，do，clean等。

have been

Ia teacher.has he lived here?

要點五：

語連用

。

如this morning，today，this week，these days

this year.

He has been to Beijing three times

this morning.

He has written two letters(說話時間在上午)

this morning.

He wrote two letters(說話時間在下午或晚上)

要點六：

英語中還有一些動詞的意義決定它們所表示的動作不能延續

常見的有：come，go，arrive，reach，see，hear，close，open，leave，begin，start，lose，buy，fall，join，die，get up，become，borrow，lend，find，finish，receive等。這些動詞可用于現在完成時，說明某個動作的結果還存在，但不能和表示一段時間的狀語(how long，for，since)連用。

for two hours

He has come back.(√)He has come back.(×)

※但在否定句中，非延續性動詞也可用表示一段時間的狀語來修飾(因為非持續性動詞的這種否定形式構成一種狀態，而這一狀態是可以持續的)，如

I haven’t heard from my father for a long time.

We haven’t seen him since 1999.

【注意】：當終止性動詞(非延續性動詞)與表示一段時間的狀語(how long，since，for，all

one’s life)相矛盾時,改正錯句的方法有如下幾種:

用副詞

(1)

two weeks ago.

He has come back for two weeks.(錯)改為:He came back(正)

ten days ago

I have lost my bike for ten days.(錯)改為:I lost my bike.(正)

用

(2)。

He has joined the League(社團)for 3 years.(錯)It is 3 years since he joined the League.

I have bought the book for 5 days.(錯)It is 5 days since I bought the book.(正)

He has died for 20 years.(錯)It is 20 years since he died.(正)

用

(3)

He has left home for 20 years.改為:Twenty years has passed since he left home.

He has lost his pen for 2 days.改為:Two days has passed since he lost his pen.

用系表結構來改寫

(4)

has been dead

He has died for 20 years.改為: Hefor 20 years.

has been open

The factory has opened since 1999.改為:The factorysince 1999.

been away

How long has he left?改為:How long has he?

用相應的延續性動詞替代非延續性動詞。

(5)

has had

He has bought the book for two weeks.改為:Hethe book for two weeks.

常見的相應轉換形式如下:

keep

borrow / lend→,

have

buy/catch→,

be over

finish /stop/end→,

be on

begin / start→,

be open

open→,

be closed

close→,

be dead

die→,

be away

leave→,

be up

get up→,

be asleep

fall asleep→,

be ill

fall ill→,

Married→be married

know

get to know→,

be lost

lose→,

be

become→,

study,

begin to study→

be in / be

join→,

have a letter

receive / get a letter→,

have a cold

catch / get a cold→,

be in the army /be a soldier

join →,

be back

return / come back / get back→,

be in school / be a student

go to school→,

be in /at / be here /be there

arrive /come / go / move / reach /get to→,

I havekeptthis bookfor three days.

He hashadthis carfor two years.

The film hasbeen over/onfor half an hour.

The doghas been deadfor 3 days.

My parentshas been marriedfor 15 years.

他參軍已有三年.He has joined the army for three years.(錯)改為:

has been in

Hethe army for three years / since three years ago.

has been a soldier

Hefor three years / since three years ago.

He joined the army three years ago.

It is three years since he joined the army.

Three years has passed since he joined the army.

要點七：

現在完成時中應注意的幾個問題

have/has gone to；have/has been to；have/has been in的區別

have/has gone to：已經去了，還沒有返回;強調“去了”，現在人不在說話的現場

have/has been to：曾經去過某地，現在已經回來了，后面可接表示“次數”的狀語;

have/has been in：表示某人“已在某地停留一段時間，現仍在那里”，其后常帶表示一段時間的狀語。

①He has been to the USA three times.他到美國去過三次。(過去“到美國”，現在已“不在美國”)

②--Where's your mother? --你媽媽在哪?

--She has gone to thehospital. --她去醫院了。

③She has been to Shanghai only once.

④--How many times has he been there? --He's been there many times.

⑤They have been at the bus stop for half an hour.他們在車站呆了半小時。(現在仍然在車站)

⑥We have been in Xi'an for two weeks.我們在西安呆了兩個多星期。(現仍在西安)

⑦How long have they been in China?他們在中國呆了多長時間了?(仍在中國)

要點八：

如何通過與一般過去時做比較,進一步掌握現在完成時?

一般過去時和現在完成時的動作都發生在過去,但意義卻不同.

(1)一般過去時只表示過去的動作或狀態,和現在不發生關系。

現在完成時表示過去發生的某一動作對現在造成的影響,強調的是現在。

learned

如:Iten English songs(說明過去學過,現在是否記得,不是本句的內容)

have learnt

Iten English songs.(learn發生在過去,但強調我現在懂英語歌曲)

cleaned

Ithe blackboard halfan hour ago.(只說明“擦”和其發生的時間)

have cleaned

Ithe blackboard.(說明現在黑板是干凈的)

has written

The teachersome new words on the blackboard(黑板上現在有單詞)

wrote

The teachersome new words on the blackboard(黑板上現在沒有單詞)

(2)一般過去時可以和表示過去的時間狀語連用,如:yesterday, last year, three days ago, just now,等。現在完成時不能和表示過去的時間狀語連用,其時間狀語可以是since…,for… , just, ever, never, before, already, yet , so far, all one’s life等

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