英语译林牛津版u3教案2班级 节次 课题M2 U3 Grammar and usage(2)总课时数第 节教学目标1.To tell the differences between“Present perfect or past perfect”2.To use them correctly.教学重难点1.To tell the differences between “Present perfect or past perfect”2.Use them correctly.教学参考The Internet and an English dictionary授课方法reading, explanation, discussion教学辅助手段多 媒 体专用教室教学过程设计教学二次备课Step 1:GreetingsStep2:Check homeworkStep3:Explanation1. Ask ss to go over the guidelines and the example sentences on page 51 and identify the differences between the present perfect tense and the past perfect tense. Look at the examples:Howard Carter is one of the most famous explorers the world has ever known. Not long after the tomb had been opened, people in Carters team began to fall ill and die strangely.Now from the following diagrams you can see the different times of each example sentence given.2. Have ss read the following two sentences and identify the differences between them:Toby said, “I have stayed in Africa for more than a month.”Toby said that he had stayed in Africa for more than a month.Note that when we change a sentence from the direct speech into the indirect speech like this, the tense will be changed from the present perfect tense to the past perfect tense.Check their answers and correct them.Complete the tables on the paper and check their answers. 教学过程设计教学二次备课Step 4: ConsolidationFilling the blanks with proper tense.（Simple Past / Present Perfect / Past Perfect）1. When I (arrive) _home last night, I discovered that Jane (prepare) _a beautiful candle-lit dinner. 2. Since I began acting, I (perform) _in two plays, a television commercial and a TV drama. However, I (speak, never even) _publicly before I came to Hollywood in 1985. 3. By the time I got to the office, the meeting (begin, already) _without me. My boss (be) _furious with me and I (be) _fired.4. When I (turn) _the radio on yesterday, I (hear) _a song that was popular when I was in high school. I (hear, not) _the song in years, and it (bring) _back some great memories. 5. When Jack (enter) _the room, I (recognize, not) _him because he (lose) _so much weight He looked totally different! 6. The Maya established a very advanced civilization in the jungles of the Yucatan; however, their culture (disappear, virtually) _by the time Europeans first (arrive) _in the New World. 7. I (visit) _so many beautiful places since I (come) _to Utah. Before moving here, I (hear, never) _of Bryce Canyon, Zion, Arches or Canyonlands. Step5:summaryFill in the blanks and then check their answers.Read these sentences aloud.课外作业Do more exercises to consolidate “Present perfect or past perfect”教学小节一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一