语言在科学探究中闪光——双语科学课《Animal Growth》课堂实录，本文主要内容关键词为：双语论文,闪光论文,语言论文,课堂实录论文,科学论文，此文献不代表本站观点，内容供学术参考，文章仅供参考阅读下载。
一、开放性设问，自然引入主题
（课始，师生相互问好后。）
师：What can animals do?
（师微笑着将动物主题自然引入，生争先恐后回答老师的问题。）
生1：Animals can run.
师：Yes,you're right.Some animals can run.（师满意地拍拍该生的肩膀。）
生2：Animals can fly.
师：Yes,Birds can fly.
生3：Animals can swim.
（师肯定了学生的回答，并有意识地重复学生的答案，让他们尽快进入英语思维状态。）
师：Yes,animals can do lots of things,but what else can animals do? Who wants to try?
（生显得有些沉默。）
师：Ok,don't worry.Let's see some pictures.（播放第一张幻灯片，内容为一只幼狮和成年狮的对比。）What are they?
生：They're lions.
师：Yes,they're baby lion and adult lion.（老师自然地引入baby和adult两个关键词，并教读两遍。）
师：Now,I'll show you some more pictures.（继续展示一系列动物成长的图片，如猫、狗、马、鱼等动物的幼年时期与成年时期的对比，让生观察。）
师：So,what do you know from these pictures?What else can animals do?（生认真思考，跃跃欲试，但没有学生主动举手。）
师：Don't be shy,just tell me your ideas.（老师微笑着鼓励学生大胆地发表自己的意见。）
生1：Animals can big.
师：Animals can big? Yes,animals can become bigger when they grow up.Any more ideas?
生2：Animals can“生长”.
师：Yes,you're right.Super! Animals can grow.Everybody clap your hands for him please.（师竖起大拇指，将“生长”译成英文“grow”教给学生，并引导全班同学鼓掌以示鼓励。）
师：Today we'll talk about animal growth.（师提高语调，并板书“Animal Growth”。）
师：When animals grow,how do their bodies change? "bigger or smaller?"
生：bigger.
师：Yes,their bodies become bigger.
二、充分调动学生已知，借助多媒体教学手段，激发学生积极主动地进行科学探究
师：Now everybody knows that animals can grow.And there're some special animals.When they grow up,their babies change in shape.Look here.（师紧接着引入下一个教学主题——青蛙、蝴蝶的变形。）
师：What are these?
（展示青蛙卵的幻灯片。）
生：eggs.
师：Very good! They're eggs.What's the next one?
师：Look! It's＿＿.
（播放了下一张幻灯片。）
生：Oh!“蝌蚪”！
师：Great! You're right.It's a tadpole.
（师肯定，教读两遍。生读：tadpole。）
师：So,the next one will be＿＿.
生：Baby frog.
师：You're really great! Yes,it's a baby frog.（师表扬后播放幻灯片。）So,what is the last one?
生：Adult frog!
师：When a frog grows,a frog egg grows into a tadpole.The tadpole then grows into afrog.This is the life cycle of frogs.
三、小组讨论，给学生充分的思维和表达空间
师：Look,what's this?（展示一张蝴蝶的幻灯片。）
生：Butterfly.
师：Very good! Yes,it's a butterfly.Now,Who can tell me the growth of a butterfly?（生开始七嘴八舌地开始小声讨论，但没有人举手。）
师：Ok,I will give you three minutes to discuss the growth of the butterfly.You please work in pairs.
生：Ok.
师：If you have any questions,you may ask me.
学生立刻开始两人一组讨论起来，他们都极力地用英文交流，但还是有中文出现。师巡视，时而俯下身来倾听，时而指导。学生也不时地举手询问老师他们不会的英文，如：“幼虫”“茧”等。老师抓住时机，告诉全班“larva、pupa”这两个单词。
师：Ok,time's up.Let's share your ideas.Who wants to try first?.
生：First,butterfly eggs,then毛毛虫，茧。
师：You are right.毛毛虫is "larva"，茧is "pupa".
师：Anyone else?
生：A butterfly lay eggs,an egg grows into a larva.The larva grows into a pupa and then into a butterfly.
师：You are so great.Give her your hands-clapping.
四、顺势总结，结课再掀高潮
师：Today we learned the growth of animals.You did a very good job!I think you can finish the sentenses.You can help each other.（播放总结本节课主要内容的幻灯片，鼓励学生互相帮助完成句子：“Animals can＿＿.When animals grow,their bodies become＿＿.Some even change in＿＿.”生认真阅读句子，并开始小声讨论答案，陆续开始有人举手。）
生：Animals can grow.When animals grow,their bodies become bigger.Some even change in shapes.
师：Very good! Let's read it together.（生大声、高兴地跟读）
师：That's all for today.Bye-bye!
生：Bye-bye,Amy!