外研社版高一英语必修一-第四单元课件.ppt

Verbs to describe events that can continue over a period of time: Know, live, stay, remain 2. Verbs to describe events that happen at a particular point of time: borrow, buy, give, leave ,open Module 4 grammar: present perfect tense 外研版 第一册 Study the following sentences: Who has opened the door? My watch has stopped They haven’t completed that experiment yet. He has already returned that book. (An action completed in the past but connected with the present situation. ) 5. I have studied English for three years/since1999. 6. He has worked in the company since he came to the city. 7.So far he has written five books. 8. It has been years since I came here. (An action beginning in the past and still continuing) Form: have/has done Usage: 1. An action completed in the past but connected with the present situation. 2. An action beginning in the past and still continuing 1. ---How long ago did you part from each other? ---It ______ five years since we said goodbye to each other. A.was B. would be C.had been D.has been ---Who broke the glass? ---Sorry .I_____. have done B. did C. broke D.am 3. --- How long has he been away ,do you know? --- Sorry ,I can’t tell exactly when he ____, though I know he has already been away. A.was leaving B. has left C. would leave D.left 4.--- How long _____ at this job? --- Since 1990. A. were you employed B. have you been employed C. had you been employed D.will you be employed --- How are you feeling today? --- Oh, I ____ as ill as I do now for a week. A. didn’t feel B. wasn’t feeling C. don’t feel D. haven’t felt Find the mistakes in the following sentences and correct them: 1.He has come back for three weeks. 2.I have joined the army for ten years. (He came back three weeks ago. He has been back for three weeks.) (I have been in the army for ten years. I joined the army ten years ago. 3.