Unit1Topic3SectionA课件2023-2024学年仁爱科普版英语九年级上册

Unit 1 The Changing World Topic 3 The world has changed for the better . Section A 1. artist ['ɑːtɪst] n.艺术家，（尤指）画家 一个艺术家/画家 an artist 2. millions of 大量；数以百万计 hundreds of 数以百计 thousands of 数以千计 3. visitor / ˈvɪzɪtə(r) / n.游客；来访者；参观者 很多游客 many visitors 4. industry [ˈɪndəstri] n.行业；工业 复数 industries 美国戏剧产业 American theater industry 5. chemistry ['kemɪstri] n.化学；化学物 她学习化学三年了 She has studied chemistry for three years. 6. term [tɜːm] n.学期；词语；措辞 新学期 new term 7. as a matter of fact= in fact 事实上 8. block [blɒk] n.街道（区）；（方形平面）大块 ---Have you_____ been to Beijing ? ---Yes, I have . I have _____ come back ---No, I haven’t . I have _____ been there . 2. ---How long have you been in Beijing? ---I have been there there for two years. ---I have been there since 1998. ever just never 注意： for+时间段 (for many days) since+时间点 （since 2005) 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 P 18 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 for的用法 用于现在完成时 现在完成时的句子+for + 时间段 我已经住在漳州4年了。 I have lived in Zhangzhou for 4 years. since的用法(常用于现在完成时） 1）现在完成时的句子+ since +过去一个时间点。 1989起，我一直在这儿。 I have been here since 1989. 2）现在完成时的句子+ since +一段时间+ ago。 从五个月前我就已经住在这里了 I have lived here since five months ago.  3）现在完成时的句子+ since +含有一般过去时的从句。 你走后，变化可大了。 Great changes have taken place since you left.  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 2020. =I h