Unit1 Past and present Grammar 课件 2023-2024学年牛津译林版八年级英语下册

八年级下册 Unit 1 Past and present Grammar Learning aims To learn the present perfect tense. To use the present perfect tense to talk about an action. 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 Wise men learn by other men's mistakes; fools by their own 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 Wise men learn by other men's mistakes; fools by their own Grammar Sentences Sentence One 四个句型的转换关系 和标志词的位置 I have already arrived 肯定句 just since + 时间 for over 否定句 not yet 一般疑问句 H Yes， you have. No， you haven’t. What done 特殊疑问句 You have arrived for an hour 【句型转换】 She has finished her homework. She ______ ______finished her homework. （改为否定句） ______ ______finished her homework？ （改为一般疑问句） What ______ she ______? （改为特殊疑问句） has not Has she has done Wise men learn by other men's mistakes; fools by their own Mr Wu asks the students to complete the sentences below using the presentperfect tense. Help them complete the sentences. B 6 Our teacher _______________ (teach) us a lot about the history of China. 1 They _______________ (finish) their homework already. 2 John ______ never ______ (visit) China. 3 Mr Li _______________ (repair) over ten bicycles since Monday. 4 We _______________ (not see) each other for years. 5 My parents _______________ (not come) back yet. have finished has visited has repaired haven’t seen haven’t come has taught Wise men learn by other men's mistakes; fools by their own Present pertect tense have/has been in：表示某人“已在某地停留一段时间，现仍在那里”，其后常带表示一段时间的状语。 I have been in Shanghai for 5 years. 我在上海待了5年了。 Wise men learn by other men's mistakes; fools by their own Present pertect tense have/has been to：曾经去过某地，现在已经回来了，后面可接表示