Unit 1 Topic 2Section A课件2023-2024学年仁爱科普版英语九年级上册

Unit 1 The Changing World Topic 2 The population in developing countries is growing faster. Section A Learning Goals 1.学习含有just, already, yet, ever和 never的现在完成时。 2.谈论有关人口的话题。 3.引导学生关注人口问题，树立正 确的人口观念。 4.句子结构so / neither /nor+倒装句。 Rivise: Present Perfect (I) 用法：表示过去发生或已经完成的某一动作对现在造成的影响或结果。 构成：助动词have/has + 动词的过去分词 (1) 肯定句:主语+have/has +过去分词+其它 e.g. We have seen the film. (2) 否定句：主语+haven’t/hasn’t +过去分词+其它。 e.g. We haven’t seen the film. (3) 一般疑问句：Have/Has +主语 +过去分词+其它？ e.g. Have you seen the film? 1. --- -Have you read this book? ---- Yes, I_____it two weeks ago. A. is reading B. have read C. will read D. read 2. Both his parents look sad. Maybe they ______ what happened to him. A.  knew B.  have known C.  must know D. will know 3. —Our country  ______ a lot so far . —Yes. I hope it will be even ______ . A. has  changed ; well B.  changed ; good C. has  changed ; better D.  changed ; better 4. —These  farmers  have  been  to  the  United  States. —Really ? When ______   there? A. will they  go B. did  they  go C. do  they  go D. have  they  gone 5. Miss  Green  isn't  in  the  office . she ______   to  the  library. A. has  gone B. went C.will  go D.  has  been　 6. The students have cleaned the classroom,    ______ ?     A. so they B. don’t they C. have they D. haven’t they 7. —How do you like Beijing, Miss Read? —I’ve no idea. I ________ there. A. have gone B. have been C .haven’t been D. haven’t gone 8. –Have you ever ____my stamps? --Yes, I ___ them on your desk yesterday. A. seen, saw B. saw, seen C. saw, saw D. seen, was seeing 9. ----May I speak to May, please? ----Sorry. She's________Paris. A. gone to B. been in