What is present perfect tense?

What is present perfect tense?What is present perfect tense?-start in the past(動作開始於過去 )-continuous up to present(一直到現在 )

presentpast

-result is still there in the present (結果存在至現在 )

-unspecific time(沒提特定時間 )

I

You

We

They

+

He

She

It

+

have

has

+past participle

Structure:

When do we use When do we use

Present Perfect Tense?Present Perfect Tense?

yet

since

for

just

already

beforeever

never

Exercise

1. She ______ already ______ (do) the homework.

1. She _______ already ________ (do) the homework.has done

2.He _______________(learn) English since 1997.

2.He _______________(learn) English since 1997.has learnt

3. She3. She ____ alreadyalready ________ (break)

three cups.

hashas brokenbroken

4. _____ you _____(see)

the London Bridge yetyet?

HaveHave seenseen

5. _______ you _______(see) him yet?

Have seen

6. They _____ ______ (live) in

England sincesince 1990.

havehave livedlived

7. Peter ____ justjust _________(answer)

the question.

hashas answeredanswered

8. I _______ ________(not finish)

dinner yetyet.

haven’thaven’t finishedfinished

9. We _______ _____ (not see) Peter

forfor two years.

haven’thaven’t seenseen

Past Tense (過去式 )

~ happened in the past (過去發生的事情 )

~ ended in the past (已完結 )

~ with no connection to the present (與現在沒聯繫 )

~ specific time given (特定時間 ) Eg. I was happy yesterday.

When do we use When do we use

Past Tense?Past Tense?last

Sunday

last year

last week

last

night

yesterday3 years ago

2 weeks

ago

1. I ______ (eat) a lot of food yesterday.

ate1. I ______ (eat) a lot of food yesterday.

2. Last Sunday, he _______(go) to Ocean Park.

went2. Last Sunday, he _______(go) to Ocean Park.

3. She3. She ____ (be) unhappy last night.waswas

4. _____ you _____(see)

Peter last week?

DidDid see

5. _______ you _______(see) him yesterday?

Did see

6. They _____ (go) to England last

year.

wentwent

7. Peter _______(watch) TV last night.

watchedwatched

1.He ______(lose) his watch yesterday.

He ______not ______(find) it yet.

Past tense & Present perfect tenselost

foundhas

2. 2. They _______ (move) to Sha Tin in 1999.

They ___________(live) in Sha Tin for three years.

movedmoved

have livedhave lived

3. 3. ______ you _______(do) the homework yet?

Yes, I ______(do) the English workbook yesterday.

HaveHave donedone

diddid

4. _______ you _______(see) him yet?

Yes, I _____(see) him last week.

Have seen

saw

5. Mary _______(see) a mouse this morning.

She ____________(stay) in bed for 3 hours. has stayed

saw