【精校版】江西省八年级英语下册 Unit 6 How long have you been collecting shells Section A(1a2c)导学案 人教新目标版

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1、人教版精品英语资料（精校版）Unit 6 How long have you been collecting shells Section A(1a-2c) 【重难点预测】1.现在完成时态的构成及用法。2.have /has been and have/has gone 的区别。【新知导学】1.When did you start learning English? I started learning English two years ago.2.How long did you sleep last night? I slept 8 hours last night.【自主预习】1.请同

2、学们先认真阅读学习目标，然后仔细研读课本P44-P45, 看完后将所学到的东西进行归纳，画出重要知识点，用红色笔作好疑难标记。2.试着读一读单词表中本课时的新单词（或词组），将不会的单词圈出来，然后通过听磁带或求助于其他等方式将单词读准、读熟。3.你知道下列单词的意思吗？试试看！collect _ shell _ marathon _ pair _skate_ since_been_ 4.写出下列短语的意思。since I was 7 years old _ for five years_a pair of skates_ your first skating marathon_5.课前听一听

3、，完成课本P44-45 1b,2a,2b的听力。【合作探究】任务1：模仿对话，区分现在完成进行时与一般过去时。成龙（Jackie Chan） 1954:be born 1961now: actA：When did Jackie Chan begin to act?B: When he was 7 years old.A: How long has Jackie Chan been acting?B1: He has been acting since 1961.B2: He has been acting for 51 years.B3: He has been acting since he

4、 was 7 years old.任务2：新知讲解。归纳生成，你能归纳上面B1- B3主要表达哪种时态吗？这种时态的结构怎样？在什么情况下使用？和一般过去时有什么区分吗？和小组成员讨论一下，然后派代表在班内汇报。(可以查阅资料)_ 任务3：做一个调查。听力之后，小组合作完成一个调查。调查组员最喜欢哪种运动？从什么时候开始？得了多久？然后把调查结果向全班汇报。可用下列句型：When did you start to learn? How long have you been doing .? I started to learnwhen I was I have been doing .for/

5、since_考点聚焦 现在完成进行时：表示从过去某一时间开始一直持续到现在的动作。这一动作可能刚刚开始，也可能仍在继续，并可能持续到将来。由“have/has been + doing”构成。练一练：翻译1.他滑了两小时冰啦。_2.孩子们从八点钟开始就一直在看电视。_3.我学英语学了五年。_ for和since的区分：for+时间段，since+过去的时间点，since +时间段+ago，since +从句 它们都用于完成时中。练一练：用for或since填空1.They have been learning Chinese _they came to China.2.I havent see

6、n her _ a long time.3.He has been living here _ 2001.4.She has been doing her homework _ two hours.5. Its 5 years _ we left school.6. How long has Mary been a teacher? _ two years ago. 【学案整理】_Unit 6 How long have you been collecting shells?Section A (1a2c) 练一练：1. He has been skating for two hours.2. Children have been watching TV since 8 oclock .3. I have been learning English for five years.练一练：1. since 2. for 3. since 4. for 5.since 6.since