高中英语选修八Unit3 Inventors and inventions Period3 Language points&Extensivereading课件（25张PPT)
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| 名称 | 高中英语选修八Unit3 Inventors and inventions Period3 Language points&Extensivereading课件（25张PPT) |  | |
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| 资源类型 | 教案 | ||
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| 科目 | 英语 | ||
| 更新时间 | 2020-04-27 11:14:31 | ||
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(共25张PPT)
高中英语（人教版） 选修八
B8U3 Inventors and inventions
Period 3 Language points & Extensive reading
Learning objectives:
1. Learn some language points.
2. Read a passage about Alexander Graham Bell.
The problem of the snakes
Main idea: The writer invented a new way to catch the snakes without hurting them and tried to apply for a patent.
Language points
1. (Para 4) They abruptly disappeared into a convenient hole in the wall.
convenient adj.
①熟义＝suitable for your purposes and needs and causing the least difficulty
方便的; 便利的; 省事的
e.g. It is very convenient to pay by credit card.
用信用卡付款非常方便。
②生义 ＝ near or easy to get to 近便的；附近的；容易到达的
e.g. The house is very convenient for several schools.
这座房子离几所学校都很近。
附近的墙洞
Language points
2. (Para 6) I collected the passive snakes and the next day we merrily released them all back into the wild.
passive adj.
①熟义＝not acting to influence or change a situation 被动的，消极的
e.g He played a passive role in the relationship.
. 他在他们的关系中处于被动地位。
②生义＝ allowing other people to be in control 顺从的, 温顺的
e.g. She looked at him, her eyes passive and calm.
她望着他，眼神温顺而平静。
温顺的蛇
can you achieve your
goal
every time he comes to visit us
3. ( Para 7 ) Pressed by my friends and relations, I decided to seize the opportunity to get recognition for my successful idea by sending my invention to the patent office.
(1) pressed by... 过去分词短语作原因状语，可以改成一个原因状语从句。
= because I was pressed by ...
(2) press v.
①熟义 = to push something firmly 按，压；挤；推
e.g. press the button 按按钮
②生义 = to try hard to persuade someone to do something 敦促；催促；逼迫（= push ）
e.g. They are pressing us to make a quick decision.
他们正催促我们尽快做出决定。
Language points
由于朋友和亲戚的敦促
Language points
4. (Para 7) The criteria are so strict that it is difficult to get new ideas accepted unless they are truly novel.
(1) so...that... 如此...以至于..., 引导结果状语从句
(2) novel
①熟义 n.＝ a long printed story about imaginary characters and events 小说
e.g. historical / romantic novels 历史 / 爱情小说
②生义 adj.＝ new and original, not like anything seen before 新奇的，新颖的
e.g. a novel idea / suggestion 新颖的观点 / 建议
2019-nCoV: novel coronavirus
新型冠状病毒
adj. 新颖的
Language points
5. (Para 8) You will know if I succeed by the size of my bank balance.
balance n.
①熟义＝ a state where things are of equal weight or force 平衡
e.g. keep / lose one's balance 保持 / 失去平衡
②生义＝ the amount of money you have in a bank account 结存，结余
e.g. The company's success is reflected in its healthy bank balance.
该公司良好的银行结存情况反映出其经营的成功。
银行结余
Inventions around us
Warming-up
Who invented the first telephone?
Alexander Graham Bell
Extensive reading
Listening & Reading:
Alexander?Graham?Bell?was?born?in?1847?in?Scotland,?but?when?he?was young?his?family?moved?to?Boston,?USA. His mother was almost deaf, so Alexzander became interested in helping deaf peope communicate and in deaf education. This interest led him to invent the microphone. He found that by pressing his lips against his mother's forehead, he could make his mother understand what he was saying.
He believed that one should always be curious and his most famous saying was:
“Leave the beaten track occasionally and dive into the woods. Every time you do you will be certain to find something that you have never seen before. Follow it up, explore all around it, and before you know it, you will have something worth thinking about to occupy your mind. All really big discoveries are the result of thought.”
Find some information of Alexzander Graham Bell.
Para. 1-2
Alexander?Graham?Bell?was?born?in?1847?in?Scotland,?but?when?he?was young?his?family?moved?to?Boston,?USA. His mother was almost deaf, so Alexzander became interested in helping deaf peope communicate and in deaf education. This interest led him to invent the microphone. He found that by pressing his lips against his mother's forehead, he could make his mother understand what he was saying.
Para. 1
Information of Alexander Graham Bell:
Birth: _________ Birth place:_________
When he was _______ his family moved to ___________.
His mother was almost ___________.
His interest in helping deaf people led him to invent ___________ .
1847
Scotland
young
Boston
deaf
the microphone
His saying means that it is important to be .
By around a subject ，you may come up with some new ways
of solving a problem.
What does Bell’s saying mean to you?
He believed that one should always be curious and his most famous saying was:
“Leave the beaten track occasionally and dive into the woods. Every time you do you will be certain to find something that you have never seen before. Follow it up, explore all around it, and before you know it, you will have something worth thinking about to occupy your mind. All really big discoveries are the result of thought.”
Para. 2
“偶尔离开平路, 去寻求困境。当你这么做的时候, 你一定会发现你从未见过的东西。
跟踪下去, 不断探索, 不知不觉中,你就会发现某种值得思考的东西占据着你的头脑。
所有真正伟大的发现都是思考的结果。”
curious and ecperimental
exploring
Language points
dive into
① He dived into the history of China．
= be devoted to 全心投入, 潜心研究
② The young man dived into the river to save the drowning child.
= jump into the water 跳水(头朝下);
③ He dived into his pockets and fished out one dollar．
= put one's hand into 迅速把手伸入;
It was this exploring around problems and his dynamic spirit that led to his most famous invention- the telephone in 1876. Bell never set out to invent the telephone and what he was trying to design was a multiple telegraph. The original telegraph sent a message over distances using Morse code (a series of dots tapped out along a wire in a particular order). But only one message could go at a time. Bell wanted to impove it so that it could send several messages at the same time. He designed a machine that would separate different sound waves and allow different conversations to be held at the same time. But he found the problem difficult to solve. One day as he was experimenting with one end of a straw joined to a deaf man's ear drum and the other to a piece of smoked glass, Bell noticed that when he spoke into the ear, the straw drew sound waves on the grass. Suddenly he had a flash of inspiration. If sound waves could be reproduced in a moving electrical current, they could be sent along a wire. In searching to improve the telegraph, Bell had invented the first telephone.
What led to his success as an inventor of the telephone?
How did Bell invent the first telephone?
Para. 3-5
Listening & Reading:
To design a multiple telegraph
Original: one message at a time.
Designed a machine to improve it.
Multiple: several messages at the same time
Invented the first telephone
null
Experiment: a straw joined a deaf man's ear drum to a piece of smoked glass.
The straw drew sound waves on the glass.
A flash of inspiration
?
?
Para. 3
Bell was fully aware of the importance of his invention and wrote to his father:
“The day is coming when telegraph wires will be laid on to houses just like water or gas- and friends will talk to each other without leaving home.”
The patent was given in 1876, but it was not until five days later that Bell sent his first message to his assistant Waston. The words have now become famous:
“Mr. Waston- come here- I want to see you.”
Para. 4-5
What did Bell mean in his letter written to his father?
Language points
1. ① It was this exploring around problems and his dynamic spirit that led to his most famous invention- the telephone in 1876.
It was...that... 强调句型
正是这种对问题的探索和富有活力的精神造就了他最著名的发明---1876年的电话。
② ... but it was not until five days later that Bell sent his first message to his assistant Waston.
It was not until … that …. 强调not until引导的时间状语（从句）
但是贝尔直到(专利发布的)五天以后才跟他的助手华生通了第一次电话。
Language points
2. Bell never set out to invent the telephone and what he was trying to design was multiple telegraph.
set out (to do sth.) 开始（做某事）,着手干; 为某个目标而努力
贝尔从未打算发明电话而是试图设计一 种多路电报。
3. This original telegraph sent a message over distance using Morse code (a series of dots tapped out along a wire in a particular order).
tapped out... 是过去分词短语作后置定语
这种原始的电报是在一段距离中用莫尔斯电码传递信息（莫尔斯电码是通过电线发出的以特定的次序敲击出的一串点）。
4. If sound waves could be reproduced in a moving electrical current, they could be sent along a wire.
如果声波能够在移动的电流中复制, 它们就能够沿电线被传送。
5. Suddenly he had a flash of inspiration.
突然间, 他灵光闪现。
inspiration [U]灵感, 启发；[C]鼓舞或激励的人或事物
e.g. These events provided the inspiration for her first book.
这些事是她第一本书的灵感来源。
Language points
Alexzander Graham Bell was not a man to rest and he interested in many other areas of invention. He experimented with helicopter designs and flying machines. While searching for a kite strong enough to carry a man into the air, Bell experimented putting triangles together and discovered the tetrahedron shape. Being very stable, it has proved invaluable in the design of bridges.
Bell was an inventor all his life. He made his first invention at eleven and his last at seventy-five. Although he is most often associated with the invention of the telephone, he was indeed a continuing searcher after pratical solutions to improve the quality of everybody's life.
How did Bell discover the tetrahedron shape?
While searching for a kite strong enough to __________ into the air, he experimented putting ________ together
and discovered the tetrahedron shape.
Listening & Reading:
Para. 6-7
carry a man
triangles
It mainly talks about ___________ of Alexander Graham Bell and how he ________________________ .
______________________________ led to his success.
He was an ___________ all his life and made great efforts to improve the quality of everybody' life.
Summary of the passage
the life
made the great invenions
His curiosity and exploring spirit
inventor
1. Go over the language points .
2. Finish the exercises in workbook.
3. Preview the grammar of the unit.
Homework
Thank you !
高中英语（人教版） 选修八
B8U3 Inventors and inventions
Period 3 Language points & Extensive reading
Learning objectives:
1. Learn some language points.
2. Read a passage about Alexander Graham Bell.
The problem of the snakes
Main idea: The writer invented a new way to catch the snakes without hurting them and tried to apply for a patent.
Language points
1. (Para 4) They abruptly disappeared into a convenient hole in the wall.
convenient adj.
①熟义＝suitable for your purposes and needs and causing the least difficulty
方便的; 便利的; 省事的
e.g. It is very convenient to pay by credit card.
用信用卡付款非常方便。
②生义 ＝ near or easy to get to 近便的；附近的；容易到达的
e.g. The house is very convenient for several schools.
这座房子离几所学校都很近。
附近的墙洞
Language points
2. (Para 6) I collected the passive snakes and the next day we merrily released them all back into the wild.
passive adj.
①熟义＝not acting to influence or change a situation 被动的，消极的
e.g He played a passive role in the relationship.
. 他在他们的关系中处于被动地位。
②生义＝ allowing other people to be in control 顺从的, 温顺的
e.g. She looked at him, her eyes passive and calm.
她望着他，眼神温顺而平静。
温顺的蛇
can you achieve your
goal
every time he comes to visit us
3. ( Para 7 ) Pressed by my friends and relations, I decided to seize the opportunity to get recognition for my successful idea by sending my invention to the patent office.
(1) pressed by... 过去分词短语作原因状语，可以改成一个原因状语从句。
= because I was pressed by ...
(2) press v.
①熟义 = to push something firmly 按，压；挤；推
e.g. press the button 按按钮
②生义 = to try hard to persuade someone to do something 敦促；催促；逼迫（= push ）
e.g. They are pressing us to make a quick decision.
他们正催促我们尽快做出决定。
Language points
由于朋友和亲戚的敦促
Language points
4. (Para 7) The criteria are so strict that it is difficult to get new ideas accepted unless they are truly novel.
(1) so...that... 如此...以至于..., 引导结果状语从句
(2) novel
①熟义 n.＝ a long printed story about imaginary characters and events 小说
e.g. historical / romantic novels 历史 / 爱情小说
②生义 adj.＝ new and original, not like anything seen before 新奇的，新颖的
e.g. a novel idea / suggestion 新颖的观点 / 建议
2019-nCoV: novel coronavirus
新型冠状病毒
adj. 新颖的
Language points
5. (Para 8) You will know if I succeed by the size of my bank balance.
balance n.
①熟义＝ a state where things are of equal weight or force 平衡
e.g. keep / lose one's balance 保持 / 失去平衡
②生义＝ the amount of money you have in a bank account 结存，结余
e.g. The company's success is reflected in its healthy bank balance.
该公司良好的银行结存情况反映出其经营的成功。
银行结余
Inventions around us
Warming-up
Who invented the first telephone?
Alexander Graham Bell
Extensive reading
Listening & Reading:
Alexander?Graham?Bell?was?born?in?1847?in?Scotland,?but?when?he?was young?his?family?moved?to?Boston,?USA. His mother was almost deaf, so Alexzander became interested in helping deaf peope communicate and in deaf education. This interest led him to invent the microphone. He found that by pressing his lips against his mother's forehead, he could make his mother understand what he was saying.
He believed that one should always be curious and his most famous saying was:
“Leave the beaten track occasionally and dive into the woods. Every time you do you will be certain to find something that you have never seen before. Follow it up, explore all around it, and before you know it, you will have something worth thinking about to occupy your mind. All really big discoveries are the result of thought.”
Find some information of Alexzander Graham Bell.
Para. 1-2
Alexander?Graham?Bell?was?born?in?1847?in?Scotland,?but?when?he?was young?his?family?moved?to?Boston,?USA. His mother was almost deaf, so Alexzander became interested in helping deaf peope communicate and in deaf education. This interest led him to invent the microphone. He found that by pressing his lips against his mother's forehead, he could make his mother understand what he was saying.
Para. 1
Information of Alexander Graham Bell:
Birth: _________ Birth place:_________
When he was _______ his family moved to ___________.
His mother was almost ___________.
His interest in helping deaf people led him to invent ___________ .
1847
Scotland
young
Boston
deaf
the microphone
His saying means that it is important to be .
By around a subject ，you may come up with some new ways
of solving a problem.
What does Bell’s saying mean to you?
He believed that one should always be curious and his most famous saying was:
“Leave the beaten track occasionally and dive into the woods. Every time you do you will be certain to find something that you have never seen before. Follow it up, explore all around it, and before you know it, you will have something worth thinking about to occupy your mind. All really big discoveries are the result of thought.”
Para. 2
“偶尔离开平路, 去寻求困境。当你这么做的时候, 你一定会发现你从未见过的东西。
跟踪下去, 不断探索, 不知不觉中,你就会发现某种值得思考的东西占据着你的头脑。
所有真正伟大的发现都是思考的结果。”
curious and ecperimental
exploring
Language points
dive into
① He dived into the history of China．
= be devoted to 全心投入, 潜心研究
② The young man dived into the river to save the drowning child.
= jump into the water 跳水(头朝下);
③ He dived into his pockets and fished out one dollar．
= put one's hand into 迅速把手伸入;
It was this exploring around problems and his dynamic spirit that led to his most famous invention- the telephone in 1876. Bell never set out to invent the telephone and what he was trying to design was a multiple telegraph. The original telegraph sent a message over distances using Morse code (a series of dots tapped out along a wire in a particular order). But only one message could go at a time. Bell wanted to impove it so that it could send several messages at the same time. He designed a machine that would separate different sound waves and allow different conversations to be held at the same time. But he found the problem difficult to solve. One day as he was experimenting with one end of a straw joined to a deaf man's ear drum and the other to a piece of smoked glass, Bell noticed that when he spoke into the ear, the straw drew sound waves on the grass. Suddenly he had a flash of inspiration. If sound waves could be reproduced in a moving electrical current, they could be sent along a wire. In searching to improve the telegraph, Bell had invented the first telephone.
What led to his success as an inventor of the telephone?
How did Bell invent the first telephone?
Para. 3-5
Listening & Reading:
To design a multiple telegraph
Original: one message at a time.
Designed a machine to improve it.
Multiple: several messages at the same time
Invented the first telephone
null
Experiment: a straw joined a deaf man's ear drum to a piece of smoked glass.
The straw drew sound waves on the glass.
A flash of inspiration
?
?
Para. 3
Bell was fully aware of the importance of his invention and wrote to his father:
“The day is coming when telegraph wires will be laid on to houses just like water or gas- and friends will talk to each other without leaving home.”
The patent was given in 1876, but it was not until five days later that Bell sent his first message to his assistant Waston. The words have now become famous:
“Mr. Waston- come here- I want to see you.”
Para. 4-5
What did Bell mean in his letter written to his father?
Language points
1. ① It was this exploring around problems and his dynamic spirit that led to his most famous invention- the telephone in 1876.
It was...that... 强调句型
正是这种对问题的探索和富有活力的精神造就了他最著名的发明---1876年的电话。
② ... but it was not until five days later that Bell sent his first message to his assistant Waston.
It was not until … that …. 强调not until引导的时间状语（从句）
但是贝尔直到(专利发布的)五天以后才跟他的助手华生通了第一次电话。
Language points
2. Bell never set out to invent the telephone and what he was trying to design was multiple telegraph.
set out (to do sth.) 开始（做某事）,着手干; 为某个目标而努力
贝尔从未打算发明电话而是试图设计一 种多路电报。
3. This original telegraph sent a message over distance using Morse code (a series of dots tapped out along a wire in a particular order).
tapped out... 是过去分词短语作后置定语
这种原始的电报是在一段距离中用莫尔斯电码传递信息（莫尔斯电码是通过电线发出的以特定的次序敲击出的一串点）。
4. If sound waves could be reproduced in a moving electrical current, they could be sent along a wire.
如果声波能够在移动的电流中复制, 它们就能够沿电线被传送。
5. Suddenly he had a flash of inspiration.
突然间, 他灵光闪现。
inspiration [U]灵感, 启发；[C]鼓舞或激励的人或事物
e.g. These events provided the inspiration for her first book.
这些事是她第一本书的灵感来源。
Language points
Alexzander Graham Bell was not a man to rest and he interested in many other areas of invention. He experimented with helicopter designs and flying machines. While searching for a kite strong enough to carry a man into the air, Bell experimented putting triangles together and discovered the tetrahedron shape. Being very stable, it has proved invaluable in the design of bridges.
Bell was an inventor all his life. He made his first invention at eleven and his last at seventy-five. Although he is most often associated with the invention of the telephone, he was indeed a continuing searcher after pratical solutions to improve the quality of everybody's life.
How did Bell discover the tetrahedron shape?
While searching for a kite strong enough to __________ into the air, he experimented putting ________ together
and discovered the tetrahedron shape.
Listening & Reading:
Para. 6-7
carry a man
triangles
It mainly talks about ___________ of Alexander Graham Bell and how he ________________________ .
______________________________ led to his success.
He was an ___________ all his life and made great efforts to improve the quality of everybody' life.
Summary of the passage
the life
made the great invenions
His curiosity and exploring spirit
inventor
1. Go over the language points .
2. Finish the exercises in workbook.
3. Preview the grammar of the unit.
Homework
Thank you !