2. let后跟动词原形作宾语补足语，即：let sb. do sth.意为“让某人干某事”，例如： I。et's go home.让我们回家吧！
Period 2 Section A(2a-3c) I．教学准备
1．教师：多媒体课件，录音机和磁带，有关本课时动物的图片，一幅包含中国、澳大利亚、南非的地图。
2．学生：搜集常见动物的栖息地知识，调查家人喜爱的动物及其原因。并做个表格。 Ⅱ．教学目标
1．通过听、说、角色扮演等活动，引导学生掌握描述动物特征的形容词scary，kind ofinteresting和部分动物栖息地的名词Australia，South Africa以及animal．sleep，cat，leg，pet等单词。
2．指导学生学会运用句型“Why do/don't you like.？”“Because they are.…”等谈论、描述动物并表达自己对动物的喜爱。 Ⅲ，教学重点
1．重点词汇：a nimal，sleep，cat，leg，pet，Australia，south，Africa，kind of，scary 2．重点句型：-Why do/don't you like...？
-Because they are kind of.…-Why does John like.？ -Because they are very. -Where are.…from? -They are from... Ⅳ．教学难点
学会用why提问原因，用because表达理由。 V.教学步骤
Step l:Revision&Warming up
建议1：通过师生问答进行自由交际。教师向学生提问有关动物的问题，然后让学生回答，通过师生问答可以训练学生的口语交际能力，使学生能够体会到成功的喜悦。 For example:
T:Are there any animals in your house? Sl: Yes,there are. /No,there aren't. T:What animals do you like best? Sl：I like monkeys.
T:Why do you like monkeys? Sl:Because they are very clever.
建议2：谈论动物的图片。教师可以利用多媒体或卡片向学生呈现一些动物的图片，然后让学生根据图片内容进行对话练习。
For example:
T:Look at the pictures. Please work in pairs. Sl:Look at Picture l.What are they? S2:They are giraffes. Sl:Do you like them? S2:Yes,I do.
Sl:Why do you like them?
S2:Because they're tall and interesting. 建议3：通过歌曲让学生热身。
Let's chant !
What animals do you like? What animals do you like? Do you like pandas? Yes,I do. Yes,I do. Do you like tigers? Yes,I do. Yes,I do. Do you like elephants? No,l don't. No,I don't.
Step 2:Present the new words
建议1：首先向学生展示一组中国、澳大利亚、南非的地图，根据地图进行对话活动，学习三种动物的栖息地Australia,South Africa and China。
For