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Newton
The theory of gravity
Darwin (The theory of evolution)
Thomas Edison
The electric bulb
Benjamin Franklin
American statesman( 政治家) , inventor, writer, and scientist. (1706-1790)
Word Study• conduct v. 导电• lightning n. 闪电• thunderstorm n. 雷暴雨• condenser n. 冷凝器,电容器• shed n. 小屋,车棚• string n. 线 , 细绳• charge v. 充电• electric shock 电击• tear v. 撕掉,扯下• frame n. 框架• cross n. 十字架,十字形• handkerchief n. 手帕• tail n. 尾部,尾巴• stick n. 杆,棍• ribbon n. 丝带• fasten v. 栓紧,使固定
Part1(Para1)
Part3(Para 4-6)
•the tips (建议) of doing the experiment
•the process ( 过程) of the experiment
Part2(Para2-3)
•the introduction of the experiment
Fast-reading match the main idea with
each part
Result
Time
Purpose
Experiment’s name Kite Experiment
To show that lightning and electricity are the same
In June 1752
The string was getting charged, “I” collected and stored a great deal of electricity in the condenser.
Listen to part one and part two
carefully, then try to complete the
following chart.
things we need
a kite bad weather( thunderstorm)
a key a condenser
a shed
Which ones are correct according to the text?
Tie the corners of the handkerchief
Add a tail to the frame
Fasten a key to the end of the long string
Build the frame of the kite
Tie a long string to the cross
Fix a sharp piece of metal to the top
Tie a silk ribbon to the string
2
7
45
36
1
put these sentences into correct order:
① Build the frame of the kite by making a small cross
② Tie the corners of the handkerchief to the points of the cross
③ Add a tail to the frame④ Tie a long string to the cross⑤ Fix a sharp piece of metal to the top⑥ Fasten a key to the end of the long
string⑦ Tie a silk ribbon to the string
Draw a kite according to these sentences
Draw a sketch( 草图 ) of the kite which was used in the experiment accord
ing to the instruction.
Make a kite
1.build the frame by making a small cross
2.tie the corners to the points of the cross
3.add a tail to the frame 4.tie a long strin
g to the cross
5.fix a sharp piece of metal to the top of the longer stick
6.fasten a key to the end of the long string 7.tie a silk ribbon
to the string above the key
Metal: pull the electricity from the cloud
Tail: keep the balance of the kite
Key : conduct the electricity into the condenser
Ribbon: made it safe to hold the string
Shed
Franklin and his son stand inside a door or some Franklin and his son stand inside a door or some cover, fly the kite when a thunderstorm appears to be cover, fly the kite when a thunderstorm appears to be coming on. When a thunderstorm comes over the kite, coming on. When a thunderstorm comes over the kite, the sharp piece of medal will pull the electricity from the sharp piece of medal will pull the electricity from the cloud. The kite and the string will become the cloud. The kite and the string will become charged.charged.
Condenser
Key
Ribbon
They collect and They collect and store the electricity store the electricity in the condenser.in the condenser.
The original one
What do you think made Franklin a great scientist ? Can you list great scientists ’ qualities (品质) ?
Discussion
confidence( 信心) , diligence (勤奋) , courage (勇气) , willpower( 毅力 ) ,chance( 机遇)......
Benjamin Franklin was a famous American scientist. In June 1752, he did a kite experiment to __________ that lightning and electricity were the same. He made a kite ,which could __________lightning. The kite was made of______ so that it would not ________ too soon. He _________ a very sharp piece of metal and then _________ a key to the ________of the long string and finally he ______a silk _______ to the string, just _______the key.
prove
attract silk
tear fixed
fastened end
tied ribbon above
Fill in the blanks:
When a _____________ appeared, he went to a _________in the field and flew the kite to the sky. Soon he saw the hairs on the string _________ ______ because the string got________. He brought his finger to the string and felt a light but clear_________ ___________. With the help of a key and a ___________,he was able to __________ a great deal of _____________.
thunderstorm shed
stand up charged
electric shock condenser
collect
Fill in the blanks:
electricity