Uint6 How long have you been collecting shells
Period 1 Section A 1a-2c
主备人： 王娟 审核人：冉国安
一．学习目标
Teaching Aims and Demands： 1.谈论人们做某事持续多长时间. 2.谈论人们的业余爱好. 3.谈论人们收藏某物多长时间.
Ⅱ. Teaching Key Points:- How long have you been collecting coins?
I have been collecting coins for five years.
Ⅲ. Teaching Difficult Points:
谈论自己有什么收藏爱好，持续了多长时间，有多少收藏品，学会for和since的用法
Ⅳ.Teaching Procedures 二．自学交流 领悟基础知识
1．按要求写出下列单词或短语。
收集_______ 邮票________ 筹钱________ 贝壳_________一对、一双______一列式的__________几个的_______
2．写出下列词组
多久___________ 自从我七岁以来____________ 从山顶学校____________ 因为某事而感谢___________ 完成做某事
___________ 每两年___________ 三．探究归纳 1. Since 的用法：
1）.连词，意为“自从.......以来”，引导时间状语从句， 从句用过去的时态，主句用完成时态。 2）Since 还可作介词，引导时间状语 Since+过去某一时刻的词或词组
3）Since 引导原因状语从句，通常位于句首， 意为“既然、由于” 2、现在完成进行时
I’ve been putting on weight.我的体重一直在增加。（表示体重从前段时间开始就一直在增加这种状态）
现在完成进行时的构成： 主语 + has/have been + 动词现在分词。
比较：现在完成时：
主语 + has/have + 动词过去分词
现在完成进行时表示从过去开始一直持续到现在，有可能还要持续下去的动作，常与for, since, how long等词连用。
Eg.: She has been watching the talent show(才艺表演) for ten minutes.到现在为止，她看才艺表演已经有十分钟了（表示看才艺表演的状态已经持续了十分钟，而且还将进行下去）
I’ve been collecting the shells since I was ten years old. 我十岁时起就一直在收集贝壳。
如果想“询问别人做一件事有多久了”，用以下句型： How long have/has + 主语 + 动词现在分词？ How long have you been collecting the shells? 你集贝壳有多长时间了？
现在完成进行时经常用于How long have you（sb.）been doing sth.这个句型，表示某人做某事多长时间了.
现在，可以谈论自己的爱好或兴趣持续多长时间了。 Eg.:
How long have you been studying English? 可以这样回答：
I have been studying English for 5 years.
另一种回答方式：I have been studying English since I was ten. For和since在表示时间时的用法区别：for + 时间段；since + 具体的时间点
Eg.: 1) I have been playing basketball for about ten years.
2) I’ve been collecting kites for seven months. 3) He has been watching English movies since 1998.
4) I have been listening to the music videos since I was seven years old.
3、 另外几个简单句型：
How long have you（sb.）been doing sth.?在一般情况下，也可用其他简单的句型来表达上述意思： Eg.:
1) When did you start skating? I started skating at eight o’clock.
2) How long did you skate?
I skated for two hours.
目标语言（Target Language）
1．How long have you been collecting coins?你收集硬币有多久了？ 2．I have been collecting coins for five years. 我收集硬币有五年了。 3．I have been collecting since I was a primary school student.我从上小学就开始收集了。
4．I have been collecting for five years. 我已经收集了有五年时间了。 5．How long did she surf the internet?她上网有多久了？ 6．She surfed the internet for two years. 她上网有两年的时间了。 7．When did you get your first pair of skates?你什么时候得到你的第一双溜冰鞋？
8．I got my first pair of skates last year. 我去年得到我的第一双溜冰鞋。 四．达标测评 基本题型我过关 1》句子翻译
1. .我弟弟滑冰整整六小时了。
My brother has been ____ ____ the ____six hours 2.你做什么运动呢？ ______ ______ do you play?
3.学生们唱歌的目的是为慈善机构筹集资金。 The students are singing to ___ ___ ___ charity. 4.我来这儿两年半了。
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