Unit4Lesson21课件2-冀教版英语八年级下册
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1．How did people write books in ancient times? They wrote each word by hand.
2．What made it possible to print books quickly? Modern technology.
3．What kind of books quickly changed people’s reading habits? The electronic book (e-book)．
3. Sentences: ①Later, people learned how to write and make Recently，computers and the Internet changed the world again.
Later, people learned how to write and make paper. press
Language points
e.g. No matter where you go, you may find friends. 无论你去哪里, 你都可以找到朋友。 I told him he could come back no matter when he wanted to. 我告诉他不管什么时候他想回来都可以。
Nowadays，people have many ways to read books . No matter what you have，a computer，a tablet，a laptop，an e-reader or a real book，keep on reading！
Read the lesson and answer the questions .
paper. pays B.
【拓展】It takes/took sb.
②It took a long time to write just one book!
③No matter what you have, a computer, a tablet, a laptop, an e-
reader or a real book, keep on reading！
Language points
Later, people learned how to write and make paper.
◆“疑问词+不定式”作宾语 疑问代词what，who，which以及疑问副词how，when， where等都 可加动词不定式，作及物动词的宾语。 【拓展】当“疑问词+不定式”结构在句中作宾语时，可改为一个宾 语从句，从而把简单句改为复合句。 Do you know whom to go with?=Do you know whom you shall go with? 你知道你必须和谁一块去吗？
It took the workers about two years to finish 疑问代词what，who，which以及疑问副词how，when， where等都可加动词不定式，作及物动词的宾语。 the project.
=The workers spent about two years finishing the project. 工人们花了约两年的时间才完成这项工程。
Language points
It took a long time to write just one book!
◆It takes sb. some time to do sth. 做某事花了某人多少时间。
Printing press
疑问代词what，who，which以及疑问副词how，when， where等都可加动词不定式，作及物动词的宾语。
Then，the printing press appeared and changed the world . With modern technology, it was possible to print books quickly. It was also possible for common people to read books .
Unit 4 The Internet Connects Us
Lesson 21 Books or Computers?
1.Curriculum words: press, appear, modern, electronic , sell,
2. Useful expressions: pass on , by hand, printing press, keep on,
Language points
Then, the printing press appeared and changed the world. appear v.出现；呈现；来到
e.g. A ship appeared on the horizon. ห้องสมุดไป่ตู้艘船出现在地平线上。
反义词disappear vi. 消失 appearance n.出现；露面 e.g. His sudden appearance surprised me .
【拓展】It takes/took sb. some time to do sth. 可转换成 ___________book .
When the printing press __________，it changed the
Useful expressions: pass on , by hand, printing press, keep on, write down, thousands of.
2．What made it possible to print books quickly?
write down, thousands of. made it possible for a new kind of book: the
A new kind of book appeared： the electronic book(e-book)．E-books are quickly changing people’s reading habits . When the printing press __________，it changed the Unit 4 The Internet Connects Us
他的突然出现使我感到惊讶。
Language points
No matter what you have, a computer, a tablet, a laptop, an e-reader or a real book, keep on reading!
◆no matter无论 no matter后面常与关系词搭配使用 no matter how = however(不管怎样) no matter who = whoever(无论谁) no matter where = wherever(在任何地方) no matter when = whenever(无论何时)
Recently，computers and the Internet changed the world again. A new kind of book appeared： the electronic book(e-book)．E-books are quickly changing people’s reading habits . It is easier for people to buy and sell books online. Information travels faster and farther.
“sb. Traditionally books could only
_____________ couldn’t travel far .
+
spend(s)/spent+时间+(in)
doing
sth.
／on
sth.
”结构。
Let’s Do It!
Studying in groups is a popular way ________ can develop students' ability.
Did you know that China was the first to invent paper？
Paper was invented during the Han Dynasty. Paper is one of the four great inventions of ancient China. The other three inventions are the compass , printing press and gunpowder.
Language points
No matter what you have, a computer, a tablet, a laptop, an e-reader or a real book, keep on reading!
◆keep on doing sth. 继续做某事 ·He kept on working until midnight though he was tired. 虽然他很疲劳，但是他持续工作到午夜。
Read the lesson and put the sentences in the correct order . The History of the Book □It3took a long time to write just one book . □It5made it possible for common people to read books . □T6he e-book appeared . □P1eople had no books，and they shared knowledge by telling stories .4 □T7he printing press appeared . □P2eople download books from the Internet . □With paper，people began to write down stories .
paper books
How many books have you read this year?
e-books
☀ Have you ever read e-books? ☀ What do you think of them?
Listen and read
The history of books is very interesting. In ancient times，there were no books， and people passed on their knowledge by telling stories. Later，people learned how to write and make paper. With paper，people began to write down their stories. They wrote each word by hand. It took a long time to write just one book！
Language points
In ancient times, there were no books, and people passed on their knowledge by telling stories.
◆pass on传递 ·Can you pass on the newspaper to my sister? 你能把报纸递给我的姐姐吗？
Let’s Do It!
3) Fill in the blanks . The first letter is given . Paper
With paper，people began to write down their stories . People wrote each word by hand . It took a long time to write one book . _I_n_fo_r_m__a_t_io_n___ couldn’t travel far . Printing press When the printing pressa_p_p_e_a_r_ed____，it changed the world . The m__o_d_e_r_n__ printing press can print books quickly，and makes it possible for theco_m__m_o_n____ person to have easy access to books .
2．What made it possible to print books quickly? Modern technology.
3．What kind of books quickly changed people’s reading habits? The electronic book (e-book)．
3. Sentences: ①Later, people learned how to write and make Recently，computers and the Internet changed the world again.
Later, people learned how to write and make paper. press
Language points
e.g. No matter where you go, you may find friends. 无论你去哪里, 你都可以找到朋友。 I told him he could come back no matter when he wanted to. 我告诉他不管什么时候他想回来都可以。
Nowadays，people have many ways to read books . No matter what you have，a computer，a tablet，a laptop，an e-reader or a real book，keep on reading！
Read the lesson and answer the questions .
paper. pays B.
【拓展】It takes/took sb.
②It took a long time to write just one book!
③No matter what you have, a computer, a tablet, a laptop, an e-
reader or a real book, keep on reading！
Language points
Later, people learned how to write and make paper.
◆“疑问词+不定式”作宾语 疑问代词what，who，which以及疑问副词how，when， where等都 可加动词不定式，作及物动词的宾语。 【拓展】当“疑问词+不定式”结构在句中作宾语时，可改为一个宾 语从句，从而把简单句改为复合句。 Do you know whom to go with?=Do you know whom you shall go with? 你知道你必须和谁一块去吗？
It took the workers about two years to finish 疑问代词what，who，which以及疑问副词how，when， where等都可加动词不定式，作及物动词的宾语。 the project.
=The workers spent about two years finishing the project. 工人们花了约两年的时间才完成这项工程。
Language points
It took a long time to write just one book!
◆It takes sb. some time to do sth. 做某事花了某人多少时间。
Printing press
疑问代词what，who，which以及疑问副词how，when， where等都可加动词不定式，作及物动词的宾语。
Then，the printing press appeared and changed the world . With modern technology, it was possible to print books quickly. It was also possible for common people to read books .
Unit 4 The Internet Connects Us
Lesson 21 Books or Computers?
1.Curriculum words: press, appear, modern, electronic , sell,
2. Useful expressions: pass on , by hand, printing press, keep on,
Language points
Then, the printing press appeared and changed the world. appear v.出现；呈现；来到
e.g. A ship appeared on the horizon. ห้องสมุดไป่ตู้艘船出现在地平线上。
反义词disappear vi. 消失 appearance n.出现；露面 e.g. His sudden appearance surprised me .
【拓展】It takes/took sb. some time to do sth. 可转换成 ___________book .
When the printing press __________，it changed the
Useful expressions: pass on , by hand, printing press, keep on, write down, thousands of.
2．What made it possible to print books quickly?
write down, thousands of. made it possible for a new kind of book: the
A new kind of book appeared： the electronic book(e-book)．E-books are quickly changing people’s reading habits . When the printing press __________，it changed the Unit 4 The Internet Connects Us
他的突然出现使我感到惊讶。
Language points
No matter what you have, a computer, a tablet, a laptop, an e-reader or a real book, keep on reading!
◆no matter无论 no matter后面常与关系词搭配使用 no matter how = however(不管怎样) no matter who = whoever(无论谁) no matter where = wherever(在任何地方) no matter when = whenever(无论何时)
Recently，computers and the Internet changed the world again. A new kind of book appeared： the electronic book(e-book)．E-books are quickly changing people’s reading habits . It is easier for people to buy and sell books online. Information travels faster and farther.
“sb. Traditionally books could only
_____________ couldn’t travel far .
+
spend(s)/spent+时间+(in)
doing
sth.
／on
sth.
”结构。
Let’s Do It!
Studying in groups is a popular way ________ can develop students' ability.
Did you know that China was the first to invent paper？
Paper was invented during the Han Dynasty. Paper is one of the four great inventions of ancient China. The other three inventions are the compass , printing press and gunpowder.
Language points
No matter what you have, a computer, a tablet, a laptop, an e-reader or a real book, keep on reading!
◆keep on doing sth. 继续做某事 ·He kept on working until midnight though he was tired. 虽然他很疲劳，但是他持续工作到午夜。
Read the lesson and put the sentences in the correct order . The History of the Book □It3took a long time to write just one book . □It5made it possible for common people to read books . □T6he e-book appeared . □P1eople had no books，and they shared knowledge by telling stories .4 □T7he printing press appeared . □P2eople download books from the Internet . □With paper，people began to write down stories .
paper books
How many books have you read this year?
e-books
☀ Have you ever read e-books? ☀ What do you think of them?
Listen and read
The history of books is very interesting. In ancient times，there were no books， and people passed on their knowledge by telling stories. Later，people learned how to write and make paper. With paper，people began to write down their stories. They wrote each word by hand. It took a long time to write just one book！
Language points
In ancient times, there were no books, and people passed on their knowledge by telling stories.
◆pass on传递 ·Can you pass on the newspaper to my sister? 你能把报纸递给我的姐姐吗？
Let’s Do It!
3) Fill in the blanks . The first letter is given . Paper
With paper，people began to write down their stories . People wrote each word by hand . It took a long time to write one book . _I_n_fo_r_m__a_t_io_n___ couldn’t travel far . Printing press When the printing pressa_p_p_e_a_r_ed____，it changed the world . The m__o_d_e_r_n__ printing press can print books quickly，and makes it possible for theco_m__m_o_n____ person to have easy access to books .