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) -result is still there in the present (結果 存在至現在) -unspecific time(沒提特定時間) past present I Structure: You We + have They + He She It + has past participle When do we use Present Perfect Tense? never ever since yet Exercise 1. She ______ already ______ (do) the homework. has done 1. She _______ already ________ (do) the homework. 2.He _______________(learn) English since 1997. has learnt 2.He _______________(learn) English since 1997. has already ________ broken 3. She ____ (break) three cups. seen Have you _____(see) 4. _____ the London Bridge yet? Have seen 5. _______ you _______(see) him yet? have ______ lived (live) in 6. They _____ England since 1990. has just _________ answered (answer) 7. Peter ____ the question. haven’t ________(not finished 8. I _______ finish) dinner yet. haven’t _____ seen (not see) Peter 9. We _______ for two years. 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 Past Tense? 3 years ago last year 1. I ______ (eat) a lot of food yesterday. ate 1. I ______ (eat) a lot of food yesterday. 2. Last Sunday, he _______(go) to Ocean Park. went 2. Last Sunday, he _______(go) to Ocean Park. was (be) unhappy last night. 3. She ____ see Did you _____(see) 4. _____ Peter last week? Did see 5. _______ you _______(see) him yesterday? went (go) to England last 6. They _____ year. watched 7. Peter _______(watch) TV last night. Past tense & Present perfect tense lost 1.He ______(lose) his watch yesterday. has found He ______not ______(find) it yet. moved (move) to Sha Tin in 1999. 2. They _______ have lived They ___________(live) in Sha Tin for three years. Have you _______(do) done 3. ______ the homework yet? did Yes, I ______(do) the English workbook yesterday. Have seen 4. _______ you _______(see) him yet? saw Yes, I _____(see) him last week. saw 5. Mary _______(see) a mouse this morning. has stayed She ____________(stay) in bed for 3 hours.