UNIT4 Lesson 21 教学课件--冀教版初中英语八年级下

(共25张PPT)
Lesson 21: Books or Computers？
UNIT 4 The Internet Connects Us
学 习 目 标
掌握单词：appear, modern, electronic, sell
接触单词：press
短语：pass on, by hand, printing press, keep on
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尊重知识，爱护图书，养成热爱阅读的好习惯。
能理解短文语言，了解图书的发展历史，能简单地描述各个时期的特点。
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课 堂 导 入
Have a conversation.
A: Do you like reading
B: Yes, I do.
A: How many books have you read this year
B: I have read…books.
A: Do you like to read paper books or e-books
B: I like…
A: Why do you like…
B: Because…
课 堂 学 习
press /pres/ n. 印刷机；新闻界
appear / p / n. 出现
modern / m dn / adj. 现代的；新式的
electronic / lek tr n k / n. 电子的
sell / sel / v. 卖；出售
sold, sold
press
Practice
My father is reading an ___________ book.
The sun __________ in the east each day.
electronic
appears
The store __________ many kinds of things.
sells
Read the lesson and put the sentences in the correct order.
The History of the Book
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.
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5
6
1
4
2
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Read and order
Read the passage and answer the 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 and answer
Paper
With paper, people began to write their stories. People wrote each word by _______. It took a______ time to write one book.________________couldn’t travel far .
Read the lesson again and fill in the blanks.
hand
Read and fill
long
Information
Printing press
When the printing press _________, it changed the world. The ________ printing press can print books ________, and makes it possible for the _______ person to have easy access to read books.
appeared
modern
quickly
common
Internet
___________ and the Internet changed the world. They made it possible for a new kind of book: the ________ books. Traditionally books could only be bought and sold at a store, but today you can buy and _______ books ______.
electronic
sell
online
Computers
Read, find and translate
pass on
in ancient times
begin to do sth.
write down
by hand
a kind of
a way to do sth.
no matter
keep doing sth.
传递
在远古时代
开始做某事
写下；记下
手工
一种
做某事的方法
无论
不断做某事
China was the first to invent paper during the Han Dynasty. It changed the world. Paper is one of the four great inventions of ancient China.
The other three inventions are the compass, printing press and gunpowder.
What are the other three inventions
Tip
Read
Read after the recording.
谈论发展演变的句子：
In the ancient times, …
Later, …
Then … appeared and changed…
Recently, … changed … again.
Nowadays, …
Sum up
Do you like reading paper books or electronic
books (e-books) Why Talk with your partner
and make up a dialogue.
Let’s Do It!
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Language points
In ancient times, there were no books and people passed on their knowledge by telling stories.
(1) pass on意为“传送；前进”。
　　pass on the ball 传球　　pass on knowledge 传递知识
　 (2) by介词，意为“通过”。by doing sth.意为“通过做某事”。
　　My sister learns English by listening to English songs.
我姐姐通过听英文歌曲学习英语。
2. They wrote each word by hand.
　by hand是固定短语，意为“手工；用手”， 表示方式。
　My mother made the cake by hand.
我母亲自己动手做的这个蛋糕。
　I like the beautiful sweater by hand.
我喜欢这件手工编织的漂亮毛衣。
3. It took a long time to write just one book!
　“It takes (sb.)some time to do sth.”是固定句型，意为“（某人）花费多少时
间做某事”。
　It usually takes me about half an hour to practise playing the piano.
我每天大约花费半小时练习弹钢琴。
　How long did it take you to get to Beijing by train yesterday
你昨天乘火车去北京用了多长时间？
4. Then, the printing press appeared and changed the world.
　appear不及物动词，意为“出现；呈现；来到”。
　 A bird suddenly appeared at the window.
一只鸟突然出现在窗口。
　[拓展]
　appear 还可以作连系动词，意为“显得；看起来”，后面可接形容词作表语。
　She appeared happy.
她显得很高兴。
5. With modern technology, it was possible to print books quickly.
　“It +be +形容词（+for sb.）to do sth.”是固定句型，意为“（对于某人来说）
做某事是…… 的”。it位于句子开头作形式主语，后面的动词不定式短语是句
子的真正主语。
　It’s important to protect animals in danger.
保护濒危动物很重要。
　It’s not easy for my grandfather to learn to play the piano.
对于我祖父来说，学习弹钢琴并不容易。
6. No matter what you have, a computer, a tablet, a laptop, an
e-reader or a real book, keep on reading!
(1) no matter意为“无论；不管”，常与what, who, when, where等连用。
　No matter what you do, be careful!
无论你做什么，要认真！
　No matter who comes, don’t open the door.
无论谁来，都不要开门。
(2)keep (on) doing sth.意为“一直做某事；反复做某事”。
Keep (on) trying, and you will make progress.
不断努力，你就会取得进步。
Leave the building __________ (quick) when the ground stops shaking.
Our country is getting stronger and _________ (strong).
I’ve got a new camera, but I don’t know how _________ (use) it.
Let me tell you some good ways ___________ (learn) English.
The teacher keeps ________ (tell) his students the importance of hard work.
It will take us two hours ________ (get) there by bus.
课 堂 达 标
quickly
Ⅰ.用所给单词的适当形式填空。
stronger
to use
to learn
telling
to get
Ⅱ.连词成句。
1. the, no, there, library, in, were, books, paper
________________________________________________.
2. Internet, the, with, faster, information, travels, faster, and
_________________________________________________.
3.takes, it, homework, hour, to, my, me, about, an, do
_________________________________________________.
4.by, do, to, know, you, a, hand, book, how, make
__________________________________________________
5. e-books, interesting, it, to, is, read
__________________________________________________.
There were no paper books in the library
With the Internet, information travels faster and faster
It takes me about an hour to do my homework
Do you know how to make a book by hand
It is interesting to read e-books.
1.Remember the new words and phrases learnt in this lesson.
2. Preview Lesson 22.
Homework
Thank you !