Unit 16 Scientists at work 高一英语说课稿

减小字体 增大字体 作者:本站收集整理  来源:本站收集整理  发布时间:2010-08-11 10:40:51

1). Individual work

Skimming: Read the material fast to find out the right picture about Franklin’s experiment.

2). Individual work

Scanning: Listen to the tape part by part to find out the topic for each one.

Para 1-3  the description of the experiment

Para 4    the equipment of the experiment

Para 5-6  the steps of the experiment

Listen with the questions below:

(1). Why did Franklin do this experiment?

(2). Was the experiment successful?

(3). What were needed when it was being done?

(4). How many steps were mentioned?

(5). What should be paid great attentions to when it was being done?

Step 3  Acting

1). Class work

With all the equipment ready ( a handkerchief made of silk, two pieces of light wood, strings, a sharp piece of metal, a key, a silk ribbon ), one student acts as the host to conduct two students how to make a kite as the one made by Franklin.

2). Individual work

   After that, all the students try to tell how to make such a kite in their own words with the help of the pictures on the screen.

Step4 Further understanding

 1). Pair work

Read through the passage to fill in the blanks in the form in pairs.

         equipment

             usage

           a kite

 

           a key

 

         a condenser

 

         a sharp metal

 

           strings

 

         a silk ribbon

 

2). Class work

Listen to some sentences to judge whether they are true or false.

(1). In 1752 scientists already knew what electricity is.

(2). Franklin was helped by a friend to do the experiment.

(3). Franklin made the kite of silk because wet silk does not conduct electricity.

(4). A condenser was used in the experiment to store electricity.

(5). The key tied to the string was put into the door to stop the kite from flying away.

(6). The experiment can be done at any time.

(7). You can feel clear electric shock if you touch the string with your fingers after the kite is flying in the sky.

Step 5  Post-reading

1). Pair work

  Franklin was doing the experiment with his little son, and he was a bit curious about what his father was doing. On the other hand, many people were watching Franklin doing the experiment. Divide the class into two groups to make a dialogue in pairs, one is between Franklin and his son ,the other Franklin and a person watching the experiment.

2). Group work

  Discuss the following questions in groups:
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