Unit 4 Lesson 21 课件--冀教版英语八年级下册.pptx

Reading books is useful.Reading books is important.Reading books is meaningful.We should keep on reading!paper books(real books)Pre-readingIn ancient times，there were no books,people passed on their knowledge by telling stories.Later,paper books appeared.People began to write stories by hand.But it took a long time to write one book.Pre-reading It can make thousands of books a day.This is a mordenprinting press.Recently,electronic book(e-book)appeared.People can buy and sell books online easily.Pre-readingFast-readingRead the passage quickly and answer the following question.*What is the main idea of the passage?Pay attention to the first paragraph and the last paragraph.Task1:Read paragraph 1 and finish the mind map.In ancient timesThere were_.no bookspassed on knowledge by_ telling storiesWith paper wrote down _stories.wrote each word_by hand Careful readingTask2:Read paragraph 2 and answer the questions.2.With mordern technology,it was possible to print books quickly.(translate)_.用现代技术，快速打印书成为一种可能。用现代技术，快速打印书成为一种可能。1.What made it possible to print books quickly?The printing press.Careful readingTask3:Read paragraph 3 and answer the question.*What are the advantages of e-books?Careful readinge-bookspaper booksadvantagesdisadvantagesCareful reading1.save a lot of money2.save a lot of time3.conventient to take4.read anywhere and anytime.1.be bad for eyes(health).2.information can be kept in our mind for a short time.1.easy to take notes on it2.be good for eyes.3.information can be kept in our mind for a long time.1.not conventient to take(too heavy)2.waste paper(waste wood/trees).Task4:From paragraph 4,we can learn thatKeep on reading!Careful readingNowadays,people have _ways to _.No matter what you have,a _,a _,an _or a _.Please remember:_manyread bookscomputertablete-readerreal bookthe history of books,no books,tell stories,with paper,write down stories by hand,the printing press,print books,e-books,easier to buy and sellpost readingNowadays,no matter what you have,keep on reading!Choose good books to read!Thank you to share the history of books with me!Show Time!Show Time!Goodbye!Goodbye!