2017-2018学年外研版八年级英语下册课件：Module 2 Unit 3 (共48张PPT)

Have you ever been to Tibet? Look at the pictures and make the sentences after the model. Have you ever travelled to the seaside? Have you ever taken a boat in the river? 1. _____ you ever _____ any prizes before? 2. I haven’t ________ much. 3. They _____ _____ to many interesting places. travelled Have have been won 一、句式结构 1. 肯定句式: 主语+ have / has +动词过去分词 + 其他。 e.g. We have seen that film. Jenny has bought two English dictionaries. 现在完成时 2. 否定句式: 主语 + have / has + not + 动词过去分词 + 其他。have not和has not分别缩写为 haven’t 和 hasn’t。 e.g. We haven’t read this book. David hasn’t found his schoolbag. 3. 一般疑问句式: Have / Has+主语+动词过去分词+其他? 肯定答语为Yes, 主语 + have / has.; 否定答语为No, 主语 + haven’t / hasn’t. e.g. —Have you ever visited that museum? —Yes, I have. / No, I haven’t. —Has she made some chocolate cookies? —Yes, she has. / No, she hasn’t. 二、过去分词的构成 规则动词过去分词的构成规则与规则动词过去式的构成规则相同。 1. 一般动词在词尾加“-ed”。如： work → worked →