冀教版八年级下Unit 4 The Internet Connects Us lesson 21 Books or Computers课件（18张ppt）

(共18张PPT)
Unit4 The Internet Connects Us
Lesson 21:
Books or Computers
Warm-up
1
Presentation
2
Language Points
3
Exercise
4
Warm-up
Free talk
How can we get knowledge
By talking with others
By watching TV
By reading books
By reading e-books
by hand 用手；手工
keep on 继续
In ancient times, people
wrote each word_______.
To write one book, they
usually _______writing
for a long time.
Words and phrases
by hand
kept on
Presentation
Learn some new words
This is a ____________.
With ______ technology,
it was possible to _____
___ knowledge.
modern adj.现代的
printing press 印刷机
pass on 传递
by hand 用手；手工
keep on 继续
printing press
modern
pass
on
Words and phrases
But now a new kind
of books _________:the
________book(e-book).
It is easier for people to
buy and _____ online.
Words and phrases
appeared
electronic
sell
morden adj.现代的
printing press 印刷机
pass on 传递
appear v.出现
electronic adj.电子的
sell v.出售
printing press 印刷机
pass on 传递
by hand 用手；手工
keep on 继续
Read the passage and answer 3 questions.
1.How did people pass on their knowledge without books in ancient times
2.What made it possible to print books quickly
3.What kind of books quickly changed people’s reading habits
By telling stories
The printing press.
The electronic books(e-books).
Read Passage1, 2 and 3 again and fill in the blanks.
With paper, people began to _____ _______ their stories. People wrote each word ________. It took a____time to write one book.__________couldn’t travel ___.
Information
by hand
long
write
down
far
When the printing press _________, it changed the world. The ________ printing press can print books ________, and makes it possible for the _______ person to have ______ access to read books.
appeared
modern
quickly
common
easy
___________ and the Internet changed the world. They made it possible for a new kind of book: the _______ books. Traditionally books could only be _______ and sold at a store, but today you can buy and _______ books ______.
electronic
bought
sell
online
Computers
Read the lesson and put the sentences in the correct order.
It took a long time to write just one book.
It made it possible for common people to read
books.
The e-book appeared.
People had no books, and they shared knowledge by telling stories.
The printing press appeared.
People download books from the Internet.
With paper, people began to write down stories.
3
5
6
1
4
2
7
Work in groups
Do you like reading paper books or
electronic books Why Talk with
your members in a group.
1. In ancient times, there were no books, and people passes on their knowledge by telling stories. 在古代，没有书，人们通过通过讲故事传递知识。
by是介词，后面可以加名词或动名词短语，意为“通过……方式（途径）”。如：
I learn English by listening to tapes. 我通过听磁带学英语。
Language points
2. It took a long time to write just one book. 仅仅写一本书就要花费很长一段时间。
句型It takes sb. some time to do sth. 意为“某人花费多长时间做某事”，it是形式主语，真正的主语是动词不定式“to do sth.”；take 随时态改变，本句用的是一般过去时态，所以用took。如：
It took me two hours to clean my house yesterday. 我昨天用了两个小时打扫房子。
I. 根据所给汉语提示，完成下列句子。
1. A computer is a useful _______ (机器).
2. There are two ________ (印刷) presses in our school.
3. What's the meaning of the second _________ (段落) in the text
4. ________ (哪一条) way shall we go
5. I bought a book about _______ (现代的) history yesterday.
modern
machine
printing
paragraph
Which
Exercise
II. 用所给单词的适当形式填空。
1. I think the Internet is ______________ (important) than the printing press.
2. The novel __________ (write) by Qiong Yao.
3. We can find information ______ (quick) on the Internet.
4. The machine can make __________ (thousand) of books a day.
5. If you ______ (forget) the telephone number, you could look it up in the book.
forgot
more important
was written
quickly
thousands
III. 连词成句。
1. hand, the, by, model, was, plane, made
__________________________________ .
2. get, how, you, information, did, the
__________________________________
3. the, answer, English, questions, in, please
__________________________________ .
4. the, Internet, people, lets, quickly, information, search, for
_______________________________________ .
5. much, sound, travels, than, faster, light
__________________________________ .
Light travels much faster than sound
The model plane was made by hand
How did you get the information
Please answer the questions in English
The Internet lets people search for information quickly
Homework:
Topic: Which invention do you think is more important—the printing press or the Internet
(Write a short passage and give at least three reasons to support your choice.)