怀仁一中高一英语必修1学案Module 5 Listening
主备人:杨云飞 周次10 编号:NO. 30 姓名:_______审核人:_________
Module
Learning Contents(学习内容): listening and Vocabulary
Learning Aims(学习目标):
1) Obtain and deal with information by listening
2) Get the Ss to know the details
Important and Difficult Points (重点难点):
How to get information by listening
【导读】听力范文
【导练】
Mr. Chen: OK, boys and girls, we're going to do an experiment. Come a bit closer. ___________________________! That's right! Now, what's the aim of this experiment, Zhou Kai?
Zhou Kai: We want to find out if _________________ when magnesium burns in air.
Mr. Chen: That's right. So what do we need first?
Zhou Kai: Um ... We need some magnesium. How much do we need? What about this piece? Is this piece OK?
Mr. Chen: No, we need rather more than that—about two and a half grams. We need a piece which is much bigger than that.
Zhou Kai: OK ... And we need a Bunsen burner ... a balance ... and a crucible to put the metal in ... Here they all are ... ________________________?
Mr. Chen: Well, first, put the magnesium in the crucible. Then put the crucible on the balance and weigh it.
Zhou Kai: OK...
Mr. Chen: _______________________? Take a look, everyone. Is it any heavier?
Zhou Kai: Um ... It weighs two and a half grams. Do you want me to write that down?
Mr. Chen: Yes, write it down. What next?
Zhou Kai: Yes ... Um, next, we're going to heat the magnesium. So I light the Bunsen burner. After that, I hold the crucible over it ... Oh look, it's burning with a white light!________________________________!
Mr. Chen: It's pretty, isn't it? Keep the noise down, boys and girls, please.
Zhou Kai: Um ... lastly, we need to weigh the magnesium again ... It weighs four grams now.
Mr. Chen: So what does that tell you?
Zhou Kai: It weighs a little more than before.
Mr. Chen: How much more?
Zhou Kai: 1.5 grams more.
Mr. Chen: And what does that mean?
Zhou Kai: It means that there is a change in weight when magnesium burns in air.
Mr. Chen: ______________________! Well done! So now, let's do the same experiment with copper. Come along, Li Kang, ____________________. What do you think will happen if you heat copper?
Li Kang: I think it'll be a lot heavier than magnesium. Shall I begin?
Mr. Chen: Yes,__________________!
【导练】Do Ex 3 on Page 47
【课后小结】____________________________________________________________