Module 4 Great inventions Unit 2 Books could be produced more quickly and cheaply.
Check the new words.
produce v. invention n. look through create v. cotton n. wood n
. at a time by hand ink n. block n. at the beginning of knowledge n. spread v. introduction n. rather than CD-ROM one day
生产 发明 浏览 创造 棉花 木材 一次 用手工（制造） 墨水 板子，街区 在------的开始 知识 传播，散播 传入，介绍 而不是 只读光盘 某天
Find the similarity.
1.Books can be read on screen. 2.The information can be received online. 3.The machines can be carried easily.
Books can be read on screen. Books can’t be read on screen. Can books be read on screen?
be replaced by
match the main ideas.
Paragraph 1 Paragraph 2 Paragraph 3
a. The world before books
b. The inventions of printing
c. Life on paper and in print
d. Technology and books
e. Can books be replaced by
Read and match.
11th century in the future
2,000 years ago 2,000 years ago
Printing was developed
Books may be replaced by computers Paper was first created Information can be downloaded from the Internet
11th century Today
In the future
Complete the timeline
11th century in the future
2,000 years ago
2,000 years ago paper was first created
11th century printing was developed Today Information can be downloaded from the
Internet In the future books may be replaced by computers
Careful reading Read and answer
1. Why were books expensive and rare before the inventions of printing?(para2) Because in those days, books could be produced only one at a time by hand. 2. Why did ideas spread more quickly when books became cheaper?(para3) Because more people learned to read. 3. What can we use to get information?(para4) The books, Tv, Internet…
send an e-mail
listen to music
watch a movie
1.on one’s way to 2. look through 3. be made of/from/ by /in / into 4. at a time 5. as a result 6. compare with 7.rather than 8. so that
? 1) Every morning my father buys a newspaper on his way to work. ? 2) Can we imagine life without paper or print? ? 3) Paper was first created about 2000 years ago, and has been made from silk, cotton, bamboo, and, since the 19 th century, from wood. ? 4) When printing was developed greatly at the beginning of the 11th century, books could be produced more quickly and cheaply. ? 5)Today information can be received online, downloaded from the Internet rather than found in books. . ? 6) These machines are smaller and lighter than books so that they can be carried every day. ? 7) But will books be needed in the future? ? 8) Computers are already used in classrooms, and newspapers nad magazines can already be read on line. ? 9)So will books be replaced by computers one day?
Can books be replaced by computers?
The advantages and the disadvantages of books and computers. Advantages
1. Easy to get and use 2.Often cheap 3.Bring happiness to us
1.Get dust on shelves 2.Take up space at home 3.Use trees 1.Expensive 2.Need to know how to use it correctly 3.Use electricity
1.Keep lots of information 2.Many ”books” are free 3..Watch movies, listen to music, play games …;
Make a survey “Can books be replaced by computers?”, then write a report.