英语人教版八年级下册unit10 导学案.doc

八年级下册unit10第三课时导学案 Unit 10 Ive had this bike for three years . （sectionAgrammarfocus4a-4c）Present perfect tense with since and for 学习目标：能正确使用现在完成时询问并表达持续性动作或状态(for, since)重点难点：能够总结现在完成时的用法，并灵活运用。一.学习内容课前自主学习 1.复习Grammar focus. 现在完成时的用法_ 现在完成时的结构：_ _现在完成时的时间状语: _(1) 用副词already和yet。already一般用于_句中, yet一般用于_ 和_句中。（2）ever “曾经”用于疑问句或否定句中，never “从来没有”常与before连用，放在助动词与过去分词之间。(3)have/has been to _与 have/has gone to_ 二.教学过程一）根据给出的句型（课件）讨论分析后回答下面的问题现在完成时的特殊疑问句的结构是_；用_询问拥有某物品的时间. since后接_；for后接_。since一段时间agofor时间段; since two weeks ago=for two weeks;二）根据展示的句型（课件）对比讨论：与how long，for或since搭配使用在现在完成时中的动词有什么共同特点？ 三）短暂性动词变为延续性动词的现在完成时构成举例：buy _ ； borrow_ arrive_ _ leave_; open_ ；join_ die _ ; marry_ _ come / go _; begin / start _ finish / stop _ ; fall asleep _ 三课堂反馈（一）、用since, for 填空1. How long have you lived here? Ive lived here _ twenty years. 2. Ive been here _ 1976. 3. He has just bought a new house in the city, but ever _ he moved in， he has had trouble with cars and their owners.4. We havent seen each other _ last week. 5. My parents and I have been in Hong Kong_ two day.6. Sally has been away from London _ last Saturday.7. Our school has changed a lot _ the new building was built.8. Tommy has had this motorcycle _ three years.9. My parents have been married _ 20 years.6. I have taught in the school _ I came here.（二）、选择填空1. Becky _ (has been, has become) a doctor for ten years.2. We are late .The movie_ (has started, has been on )for ten minutes.3. You _ (have borrowed, have kept) the library book for over two weeks.4. I _ (have bought, have had) this bike since I was ten ,so I want to buy a new one.(三）1.4a.合作讨论定每个句子的出谓语动词、时间状语。（黑板展示）2. 4b 观察句子了解句意画出关键词定时态变动词。3.4c 互动完成调查，看那些同学在规定时