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1、高一英语:Unit16Scientistsatwork教案2教学示例(二) I. Teaching aims: Talk about science and scientists. learn how to give instructions. Similar dialogue presentation with new words and expressions used within II. Teaching aids: tape recorder, pictures, slides Step 1 Pr
2、e-reading ask Ss: Do you know the names of some famous scientists? What are they famous for? T show some pictures and ask : Do you know the scientists? What are they famous for? Albert Einstein 爱因斯坦 Galileo Galilei伽利略 Marie Curie居里夫人
3、 Stephen Hawking Charles Darwin达尔文 Yuan Longping袁隆平 史蒂芬·威廉姆·霍金 2. Group work let Ss work in pairs , and name some scientists who made many important discoveries in the eighteenth and nineteenth centuries .(slide show) Step II. Reading 1. Sk
4、imming let Ss read the passage carefully and answer the question: Why did Benjamin Franklin do this experiment with the kite? (He wanted to show /prove that lightning and electricity are the same thing.) 2. Skipping let Ss read the passage again, and fini
5、sh the following exercises: (slide show)True (T)or false (F)1. In 1752 scientists already knew what electricity is. (T )2. Franklin was helped by a friend to do the experiment. (F )3. Franklin made the kite of silk because wet silk does not conduct electricity.
6、 (F )4. A condenser was used in the experiment to store electricity. ( T ) key tied to the string was put into the door to stop the kite form flying away. (F ) 3. Extractive reading let Ss read the passage carefully, and answer the following the questions:
7、 is it better to make the kite of silk than of paper? (A slik kite will last longer in bad weather than a paper kite. ) b. Do you think Franklin’s experiment was dangerous? Explain. (Yes Franklin’s experiment was very dangerous because if something went wr
8、ong he could be killed by the lightning. ) 4. let Ss find out the keys of the exercises after their reading.(slide show)Aim: To show that lightning and electricity