【英语】Unit 3《Section Four Grammar and usage》课件 1(译林版必修2).ppt

What did you do yesterday? What did you do yesterday? What is The past perfect tense Compare the simple past and The past perfect tense More examples By the end of last year, I ______ for 15 years. When I came back home, my favourite TV program __________. The past perfect tense used in indirect speech Here the past action didn’t happen a long time ago. I had done my homework this morning before I went to the museum. used with time expressions such as when, after, before, as soon as, until, by, for and already A Complete the story of Amelia Earhart (1)had seen (2)moved (3)had taken (4)had become (5) had met (6)had begun (7)had started (8)had gone B Complete the story of Amelia Earhart (1)surprised (2)was built (3)spent (4)was finished (5) had wanted (6)had received (7)had arrived (8)had hit (9)survived (10)had searched （11）used（12） had caused Question How do you know you will use the past tense or the past perfect tense? Present perfect or past perfect? The present perfect tense is used when we are talking about a past event which relates to the present time. Howard Carter is one of the most famous explorers the world has ever known. The past perfect tense is used when we are discussing the past and want to talk about an even earlier event. Not long after the tomb had been opened, people in Carter’s team began to fall ill and die strangely. The inventor of paper (1)had failed (2)had tried (3)had heared (4)had caught (5) had showed/shown Practice 1. Tom was disappointed that most of the guests ______ when he ______ at the party. 　　A. left； had arrived B. left； arrived 　　C. had left； had arrived D. had left； arrived 　　 2. We ______ four thousand new words by the end of last year. 　　A. had learned B. have learned 　　C. learned D. will have learned 　 典型例题 When I arrived at the st