Unit 1 第3课时 Grammar：现在完成时（一）【精讲课件】-2022-2023学年八年级英语下册同步精品课堂（牛津译林版）

Unit 1 Past and present 第3课时 Grammar 牛津译林版 八年级下册 New words:yet, recently, past Grammar： 1. 现在完成时的定义 2. 现在完成时过去分词的变化规则 3. 现在完成时的四个句型 4. 现在完成时的标志词 Catalogue New Words Phrases Sentences Practices Summary Grammar Teaching Goals adv. 还，仍 adv. 近来，最近 adj. 过去的 → ___________ adj. Look and Read yet recently past recent New Words New Words 现在完成时的定义 1. 从过去开始，持续到现在。 2. 过去发生的动作对现在有影响。 3. 这个动作多次进行。 I have lived here since I was born. Eddie has just eaten Hobo's food. (Eddie ate the food, and now Hobo has nothing to eat.) I have already read this book many times. 关键：谓语动词的形式（have/has + 动词过去分词） Grammar Grammar 过去分词的变化规则 大部分动词 + ed finish ed 以e结尾的动词 + d change 以y结尾的动词 把y改为i + ed carry 以重读闭音节结尾的动词 双写最后一个字母 + ed stop d ied ped 不规则变化 AAA型 hit-hit-hit AAB型 beat-beat-beaten ABA型 come-came-come ABB型 spend-spent-spent ABC型 do-did-done Grammar Help them write the past participles of the verbs below. 1 borrow 2 hope 3 make 4 get 5 plan 6 cry 7 send 8 watch 9 say 10 grow 11 hit 12 enjoy ed ed ed ned d de ied id n t o Grammar 现在完成时的肯定句 I have arrived. She has arrived. 主语 谓语（have/has + 过去分词） Tom and Jane have arrived. 注意是否三单 主语是三单，用has+过去分词 Grammar 现在完成时的否定句 I have not arrived. She hasn’t arrived. 主语 have/has not Tom and Jane haven’t arrived. 否定词not放在have/has后，可以缩写为haven’t/hasn’t 过去分词 Grammar 现在完成时的一般疑问句 Have you arrived？ Has she arrived？ Have/Has 主语 Have Tom and Jane arrived？ 肯定句的主语和have/has调换位置变一般疑问句 过去分词 Yes, I have. / No, I haven’t. Yes, she has. / No, she hasn’t. Yes, they have. / No, they have’t. Grammar 现在完成时的特殊疑问句 What have you done? What has she done? 特殊疑问词 have/ has What have Tom and Jane done? 在一般疑问句的结构上句前加上特殊疑问词 主语 过去分词 Grammar 现在完成时的标志词 Eddie has eaten