Unit 9　Have you ever been to a museum第3、4课时学案2021-2022学年人教版英语八年级下册

课题：Unit 9　Have you ever been to a museum? 第三课时　Section A (Grammar Focus­4c) 学习目标 掌握本课时的语法和重点单词及短语。 自主学习 熟读并背诵Grammar Focus 合作探究 小组合作，总结现在完成时的定义，结构及用法。 知识点拨 现在完成时--与 ever, never 连用 1. never “从来没有，从不”，表示否定。 e.g. He has never seen such a tall building. 他从未见过这么高的楼。 2. ever “曾经”，主要用于疑问句。 e.g. Have you ever wanted to travel around the world? 你曾经想要周游世界吗？ 注意：never, ever一般置于助动词have/ has之后，过去分词之前。 当堂训练 一、根据括号中所给动词的提示完成下列句子或对话。 1. I _______________ (work) in this city for 7 years. 2. — How long ______ she ______ (live) here? — Since she ______ (get) a new job here. 3. How many words _____ you ____________ (learn) since two years ago? 4. My mother ____ never _______(hear) of this man. 5. Tom ___________ (be) to China twice. 二、根据括号内的要求完成下列各句，每空一词。 1. My parents have come back already.(改为否定句) My parents _______ ______ back ____. 2. The boys have been to Japan lots of times. (改为一般疑问句) _______ the boys _______ to Japan lots of times? 3. Has your sister gone to the bookstore? (作肯定回答) ___