Lesson 21 Books or computers课件 -2024-2025学年冀教版（2012）八年级英语下册

Lesson 21 Books or computers ？ 冀教版初中八年级下册英语 screen mouse keyboard Can you name the parts of a computer? host monitor Revision Who has the best memory? PK Q1: In ancient times,there were no books. How did people get knowledge? They got knowledge by telling stories. Lead-in Q2: How do people get knowledge now? By reading paper books./e-books . By learning from teachers or learning by themselves on the computer. E-book is short for the electronic book. paper books e-book Cailun invented papermaking in East Han Dynasty. China was the first country to invent paper. It changed the world. Words and expressions In ancient times, people wrote each word_______. It usually ________ them a long time to write just one book. by hand by hand 手工 took It takes/took sb. time to do sth. 花费某人多少时间 printing press modern This is a _______ ______ with _____ technology , it can make thousands of books a day. printing press 印刷机 With the computer and the Internet， a new kind of book _________: the ________ book(e-book). It is easier for people to buy and _____ books online. appeared electronic sell ﹢ Task1 1.How did people pass on knowledge 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. E-books. Listening 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. 1 2 3 4 5 6 7 Task 2 Reading Task 3 Reading again Fill in the blanks . The first letter is given . paper Information Paragraph 1 With paper，people began to write down their stories. People wrote each word ________ . It took a long time to write one book . ___ ______ couldn’t travel far. by hand 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. printing press appeared modern quickly common __________ 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 _____ at a store, but today you can buy and _______ books online. Computers electronic sold sell Internet sell- sold -sold Culture tips： The four great inventions in China Task 4 Task 6 1. To recite key words and useful phrases of Lesson 21 2. To write a short passage and talk about the advantages and disadvantages of e-books. Homework 80431.055 $$