Unitampnbsp6ampnbspHowampnbsplongampnbsphaveampnbspyouampnbspbeenampnbspcollectingampnbspshells？ampnbsp第二课时教案

　　一、任务示范及讲解 　　1．通过打电话的方式了解同学们有什么爱好（如：打篮球、弹钢琴、学英语等）；这个爱好持续了多长时间？在过去某一个时间里是否做过这件事（如：昨天、前天、上个星期等等）；做了多长时间？
　　name
　　hobby
　　how long (for)
　　time (past)
　　how long (for)                    　　完成任务所需要的语言结构： 　　1) what’s your name? 　　2) what is your hobby? 　　3) how long have you been playing basketball? 　　4) i have been playing basketball for about ten years. 　　5) how long did you play it yesterday? 　　6) i played it for about two hours. 　　下面请听老师示范： namehobby how long (for)time (past)how long (for)wang gangplay footballfor five yearsyesterdayone hourli hongdancingfor seven yearslast sundaytwo hourszhao mingswimmingfor four yearslast weekten hours　　2．让学生自述自己做某一件事的情况。如：　　i have been studying dancing for about five years. i danced for about two hours last saturday. 等。 　　3．通过打电话对本班的同学作一个采访，询问他 / 她正在做什么？做了多久了？是否打算继续做下去？并请同学们汇报调查结果 　　完成任务所需要的语言结构： 　　1) what are you doing? 　　2) when did you do it? 　　3) how long have you been doing it? 　　4) how long did you do it? 　　下面请听老师示范：　　a: what are you doing? 　　b: we are watching a new movie. 　　a: how long have you been watching it? 　　b: we have been watching it for about ten minutes. 　　4．同学们，为了丰富你们的课余生活，学校准备组织课外活动小组。在组织活动小组之前，学校要对你们的爱好进行调查，你们有些什么爱好呢？这些爱好从什么时候开始的？到现在持续了多久？　　请同学们通过这个练习学会＂since＂和＂for＂在表示时间时的用法。请看下面的例句：　　1) the skating marathon has been going for eight hours. 　　2) i have been collecting kites for seven years. 　　3) he has been watching english movies since 1998. 　　4) i have been listening to music videos since i was seven years old. 　　通过以上例句我们可以看出for后面接的是一个时间段：eight hours和 seven years，而since后面接的是具体的时间点：1998 （1998年）、i was seven years old（我7岁）。　　首先听老师的示范，……，下面请同学们自己完成表格。 namehobbyhow long  since for   since for   since for 　　完成任务所需要的语言结构： 　　1. i have been doing it since i was ten years old. 　　2. i have been doing it for six years. 　　老师示范：
　　name
　　hobby
　　how longwu qingrunning
　　sincei have been running since i was a child.
　　fori have been running for five years.li qiangcollect kites
　　sincei have been collecting kites since i was eight.
　　fori have been collecting kites for about six yeas.　　二．布置作业　　1．听力练习　　section b 2a, 2b 　　2．预习section b 3a