The Present Perfect Tense Carlos & Tina

Learning aims 1.To know the present perfect tense. 2.To master the structure of the PPT.    3.To learn the differences between the simple past tense and the present perfect tense.

Eddie has lived with Millie since he was born. Features one: We use the present perfect tense to talk about things that started in the past and continue to the present. Eddie has lived with Millie since he was born. Eddie has lived with Millie for four years. present Past present Past 4 years

Signal words : since The phrase of “since” said the past still continues, the object after “since” must be a time point. 1.Mr. Smith has worked here since 1984. 2.He’s learned about 5,000 English words since he went to college.

Signal words : for The phrase of “for” means the action continues a long time, the object is a period of time. 1.We have known each other for twenty years. 2.I haven’t seen her for a long time.

Feature two: We also use the present perfect tense to talk about things that happened in the past and have connection with the present. Andy has eaten my food. (Andy ate the food and now I have nothing to eat.)

The structure of PPT Affirmative sentence Patterns: Subject + have Subject + has + Past Participle 1. We have lived in Beijing. 2. He has lived in Beijing. 3. I have finished my homework.

Negative sentences Patterns : Subject + have/has + not + Past Participle 1. I have not seen the movie yet. 2. He hasn’t been to Beijing since then.

Patterns : Have/Has + Subject + Past Participle The general questions sentence Patterns : Have/Has + Subject + Past Participle 1.Have you finished the work? 2.Has she arrived here? The special questions sentence Patterns : WH + have/has + Subject + Past Participle 1.How many times have you been to the Great Wall

Main use of the PPT 1. Express a past event that has present consequences Someone has just turned off the light. I have already finished my homework.

Main use of the PPT 2. The events described by present perfects are not necessarily completed I want to see how much the place has changed since I saw it last. I have learnt English for more than ten years.

STRUCTURE OF PP AAA ABB Type original p.t p.p cost read meet met catch caught ride rode ridden speak spoke spoken drink drank drunk eat ate eaten AAA ABB ABC

The differences of the simple past tense and present perfect tense The SPT focus on the time of action happened The PPT focus on the result of action The PPT must not after those phrases express past time Include “when”.

Thanks