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

牛津译林版八年级英语下册 Unit1 Past and present Grammar 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 New Words New Words yet [jet] adv. 还；仍 recently [ˈriːs(ə)ntli] adv. 近来；最近 past [pɑːst] adj. 过去的 recent adj. 最近的 New Words ヽ ヽ ∨ ∨ ヽ Text Text 时态 定义 句型 标志词 现在完成时 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。 句型： 1. 主语 + have / has + done... 2. 主语 + have / has + not + done ... 3. Have / Has + 主语 + done ...? 4. 特殊疑问词 + have / has + 主语+ done 时间标志词：just, ever, since, since then, over the years, before, yet, recently, already, over the past century, over the past two hours, for... If a thing is worth doing it is worth worth doing well Negative form Dinner is ready. But Mum and Dad haven’t started . They are worried because Daniel hasn’t come back home from school. Maybe he hasn’t finished his school work and has to stay after school. Maybe he hasn’t caught the bus. Have/ has not + PP have not = haven’t has not = hasn’t Work out the rule: If a thing is worth doing it is worth worth doing well Question form Daniel: I’m hungry, Mum. ____ you ________ dinner yet? Mum: Yes, I have. And you? _____ you ________ your homework yet? Daniel: No, I haven’t. But can I have dinner first? I haven’t had anything since lunch. Have/ Has + S + PP….? Have cooked Have finished Work out the rule: If a thing is worth doing it is worth worth doing well 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） If a thing is worth doing it is worth worth doing well Grammar Grammar Grammar 现在完成时： 动词过去分词done Grammar One 大部分动词 + ed finish ed 以e结尾的动词 + d