1、Lesson 21： Books or Computers?天水市秦州区中梁中学 寇彦莉,books,What are books made of?,Paper.,What are the four great inventions of ancient china? Paper, printing press , gunpower and the compass.,How many books have you read this year? Do you read e-books? Do you like them?,How did people write books in ancien
2、t times?,They wrote each word by hand.,What made it possible to print books quickly?,With modern technology, it was possible to print books quickly.,What kind of books quickly changed peoples reading habits?,E-books are quickly changing peoples reading habits.,Practice, It tooks a long time to write
3、 just one book. It made it possible for common people to readbooks. The e-book appeared. People had no books, and they sharedknowledge by telling stories. The printing press appeared. People download books from the Internet. With paper, people began to write down stories.,3,5,6,1,4,7,2,1. In ancient
4、 times, there were no books, and people passed on their knowledge by telling stories.在古代，没有书，人们靠讲故事来传递知识。 pass on 传递，传授Could you please pass on the book to the girl sitting behind you?,The key difficulty,2. They wrote each word by hand. 每个字都是手写的。 by hand 手工 That old book was written by hand.那本旧书是人工抄
5、写的。 I like to eat dumplings made by hand.我喜欢吃手工包的水饺。【拓展】 by hand还有“用体力”“由专人”等意思。 The letter was delivered by hand.此信由专人递送。,The key difficulty,The key difficulty,3. It took a long time to write a book.It takes sb. some time to do sth.= sb. spend some time on sth./doing sth.= sb. need some time to do
6、sth.It takes me 30 minutes to walk to school every day.It took him ten years to write a novel.,4. No matter what you havekeep on reading!No matter+what/how/when+主句：无论什么/怎样/何时No matter what you do,you must be very careful. No matter how you do it,I agree with you!Ill discuss it with you no matter whe
7、n you like.,The key difficulty,5. It was possible to print books quickly. it is + adj.+ to do sth.It was also possilbe for common people to read books.It is easier for people to buy and sell books on line.It is hard for you to finish this work.,The key difficulty,Summary,New words appear modern elec
8、tronic sell Useful expressions pass on by hand printing press keep on,Summary,Key sentencesIt takes sb. some time to do sth. No matter + what/how/when it is + adj. + to do sth.,Which invention do you think is more important- the printing press or the internet?,Question,I think is more important because,Homework,Do you like reading paper books or electronic books(e-books)? Why?,Thank you Bye-bye,
