背景分析：要想使小组合作学习能顺利进行并且充满活力，采取适当的发展性评价方法与策略至关重要。评价是小组合作学习不可缺少的环节。
（一）教学目标与要求
1、知识目标：能够听、说、读、写动词短语的ing形式。
2、能力目标：学生能用句型表述他人正在进行的动作。
3、情感目标：使学生学会与他人进行合作、交流。
（二）教学重点
重点掌握进行时的表达方式和四个短语动词的ing 形式。
（三）教学难点:重读闭音节动词现在分词形式的变化。
（四）教学设备
cia, tape recorder, pictures
（五）教学步骤及说明
step 1: warm up
1.let’s chant：
what are you doing? what are you doing?
i am sweeping the floor. what are you doing?
i am reading a book. what are you doing?
i am drawing pictures. what are you doing?
i am washing clothes. what are you doing?
i am cleaning the
2. sing a song: what are you doing?
（设计意图：唱歌是学生喜闻乐见的教学形式之一，通过说唱、唱歌等形式，引入课堂,能够调动学生的学习兴趣。）
step 2: revision
1.show students some photos, ask and answer:
-----what are you doing?
----i’m drawing pictures, reading a book, washing clothes, cleaning the dolls.
2. students write down the phrases on the blackboard and read.
（设计意图：让学生进行两两合作，一个表演，一个运用句型复习四个已学过的动作，为下面的教学作好铺垫，使学生能更好的掌握所学的句型。）
step 3. presentation
1. t: what do you usually do at the weekend?
s:i usually……（通过师生对话，直接引出词组）
t: but i usually read books at home. i like reading books very much.
2. learn to say and spell “read books”.（学生跟读词组，并拼写词组）
3.show the photos, ask and answer: （从what are you doing句型引出what is he doing?句型）
-----what’s he doing?
-----he’s reading books.
4. learn to say the following three phrases and write down the phrases on the blackboard:（继续引出其余三个词组，并将词组写在黑板上，为学生以后的活动做准备）
watch tv —— watching tv
sleep —— sleeping
run —— running
step4. drill and practice:
1.look at the photos, ask and answer:
what is he/she doing?
he’s/she’s……
2.look and guess:
there are three actions in the pictures, guess:
what’s he/she doing?
（设计意图：通过模糊画面，让学生猜一猜他们在干什么，巩固词组，每幅图片上三个动作，看谁记得最快，让小组合作进行说，看哪一组猜得多而准确。学生对猜一猜的兴趣较浓，再用小组竞争的形式让学生进行猜测，这既能调动学生的学习兴趣，又能培养他们的团队的合作精神。）
3.showing the pictures of page 48.practise the sentence patterns.(呈现书中d部分的图片，操练句型)
4. do an action: students are divided into several groups. one acts teacher and says “everybody. do an action.”
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