Using Language

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unit 3 Using Language
Reading Alexander Graham Bell
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What are the four famous inventions in ancient
China?
Compass
Gunpowder
Papermaking
Printing
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How about the inventions in foreign countries?
invented the electric
bulb.
Thomas Edison
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• telephone

Alexander Graham Bell.
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Skimming

• Skim the passage and find out the main
  idea of it.

It mainly talks about the life of
and
how he made the great .
Alexander Graham Bell
inventions
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Get some general information of Bell.
Scanning
Date Information
In 1847
He was young
11 years old
In 1876
75 years old
He was born.
His family moved to Boston, USA.
He made his first invention.
He invented the first telephone.
He made his last invention.
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Reading for details about para1
1.What is his interest when he was young? And
why?
He became interested in helping deaf people
communicate and in education. Because his mother
was entirely deaf.

• 2. How did Bell make his mother understand what
  he said?

By pressing his lips against his mothers
forehead.
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Further-reading about para 2
Do the following exercises according to Para.2

• Bell believed that if one wanted to make some
• inventions, one should have __ about the
  world.

A. confidence B. curiosity C. a will

• Please find out a sentence in Para. 2 to replace
• the following sentence.
• Whenever you do , you will be sure to find
• something that you have never seen before.

Every time you do you will be certain to find
something that you have never seen before.
??????????,???????????????
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Further-reading
Complete the short passage according to Para.3
Bell never set out to _____ the telephone.
He wanted to design a _______ telegraph so
that it could send ______ messages at a time.
He designed a machine that would _______
different sound waves. But the problem is
_______ to solve. One day, while he was
experimenting with one end of a straw _____ to
a deaf mans eardrum and the other end to a
piece of smoked glass. Bell ______ that when
he spoke into the ear, the straw drew sound
waves on the glass. He thought if sound waves
could be reproduced in a moving
electrical_______ , they could be sent along a
____ . So the ____ telephone was born.
invent
??????,??????????????????????,????????????????????
.
multiple
several
separate
difficult
joined
noticed
current
wire
first
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Para.3.How was the telephone invented?
By chance
aim
wanted to improve
designed a machine

experimented with
noticed
suddenly had a flash of inspiration
invented
In searching to improve the telegraph, Bell
invented the first telephone!

???????????,???????????!
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(No Transcript)
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Para 6 1).What is his new discovery? How did he
discover it?

• The tetrahedron shape.
• While searching for a kite strong enough to carry
  a man into the air, Bell experimented putting
  triangles together and discovered it.

2).Sentence replacement
Because the tetrahedron is very stable, it has
proved very useful in the building of bridges.
Being very stable, it has proved invaluable in
the design of bridges.
By chance
(???)??????, ???????????????
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Listening
Give the right order according to the text, and
the first sentence is given.
1. He was born in 1847 in Scotland.
2. In 1876, he invented the telephone .
3. Bell wrote a letter to his father.
4. He made some other inventions.
5. He sent the first message to his assistant.
6. He invented the microphone.
Bell was an inventor all his life.
_____,_____,_____,____,____,_____
1
6
2
3
5
4
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Summary
Read the passage aloud.
Bell was an inventor all his life. He was born in
1847 in Scotland. He invented the microphone.
In 1876, he invented the telephone . Bell
wrote a letter to his father. He sent the first
message to his assistant. He made some other
inventions.



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Useful expressions

• be/become interested in
• be curious
• beaten track
• dive into
• (be) worth thinking
• lead to
• set out to (do)
• at a time

• ????
• ???
• ?????
• ????
• ????
• ??
• ??(?)
• ??

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• ??
• ????????
• ???
• ??
• ????/???
• ??, ???

• at the same time
• found the problem
• difficult to solve
• be aware of
• search for
• be associated with
• indeed

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Talking Bar ???
What can we learn from Alexander
Graham Bell? If Alexander Graham Bell
were still alive, would he think it a good idea
for students to owe a cell phone?
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Key Words Agree fashion convenient
Disagree waste money/time break rules be
harmful to
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Homework After class, please
write a short passage about your discussion.
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(No Transcript)