Unit 1 Topic 3（备课件）-【上好课】2021-2022学年九年级英语上册同步备课系列（仁爱科普版）

Unit 1the changing world 仁爱版 英语九年级上册 Topic 3.The world has changed for the better . . . Warming up—Pre-listening—While-listening—Post-listening—Exercises —Summary New York What took place in New York? Warming up You have been in New York for a long time. for a long time came to New York present past sb. have/ has been in... 某人一直在…… Warming up e.g. I have been in the new school for a week. for a week last week present past for + 时间段 Warming up ..., but the city has improved a lot since I came here a few years ago. since I came here a few years ago came here present past since +从句（从句谓语动词用过去式） Warming up e.g. She works in the school since 1995. since 1995 lived present past since +时间点 Warming up e.g. He has waited for Tom since two hours ago. since two hours ago 8:00 present past since + 时间段+ago 10:00 Warming up I have worked in the school for three years . =I have worked in the school since three years ago . =I have worked in the school since 2011. =I have worked here since I came to the school . for+时间段 since+时间段+ago since+时间点 since+从句 Warming up 3 Look carefully and think about the differences between since and for in 1a. Then complete the sentences with since or for and listen and check. 1.I have lived in Beijing ______ three years. ______2011. 2. He has waited for Tom ______ two hours ago. ______ two hours. 3. We have learned chemistry ___ one month. ____ the new term began. for for for since since since n.化学 n.学期 Warming up Fill in the blanks with for or since. 1. His father has been dead ______ he was ten years old. 2. Michael has been away from the army ______ six years. 3. He has been in Chongqing _______2003. 4. My brother has had a car ______ two months. 5. Tom has kept a book ______ 5:00 a.m. since for since for si