Unit4 Lesson21讲义2023-2024学年冀教版英语八年级下册

个性化辅导学案 所学科目： 在读年级： 课程时长： 上课日期： 教师姓名： 班主任： 教学目标 掌握第21课重点单词、短语的用法。 教学内容 Part I 教材原文&翻译 The history of books is very interesting. In ancient times,there were no books, and people passed on their knowledge by telling stories. Later,people learned how to write and make paper. With paper,people began to write down their stories. They wrote each word by hand. It took a long time to write just one book! Then, the printing press appeared and changed the world. With modern technology, it was possible to print books quickly. It was also possible for common people to read books. Recently, computers and the Internet changed the world again. A new kind of book appeared: the electronic book (e-book). E-books are quickly changing people's reading habits. It is easier for people to buy and sell books on line. Information travels faster and farther. Nowadays, people have many ways to read books. No matter what you have,a computers tablet, a laptop, an e-reader or a real book, keep on reading! Which invention do you think is more important ----- the printing press or the Internet? 书的历史很有趣。古代没有书，人们通过讲故事来传递他们的知识。后来，人们学会了怎样写字和造纸。有了纸，人们开始写下他们的故事。他们用手写下每个字。仅写一本书就要花费很长时间！ 后来，印刷机出现了，并改变了世界。随着现代技术的发展，快速印书成为了可能。普通人也能够看书了。 最近，电脑和互联网再一次改变了世界。一种新型的书出现了：电子书。电子书迅速改变了人们的阅读习惯。人们在网上买卖书籍更加方便。信息传播得更快更远。 现在，人们有很多方式看书。不管你拥有的是什么，台式电脑、平板电脑、笔记本电脑、电子阅读器或一本真正的书，坚持阅读吧！ 你认为哪种发明更加重要------印刷机还是互联网？ Part II 必背单词 1. press n. 印刷机；新闻界 2. appear v. 出现；呈现；来到 disappear v. 消失 appearance n. 出现，公开露面 eg: His sudden appearance surprised me.他的突然出现使我感到惊讶。 3. modern adj. 现代的；新式的 4. electronic adj. 电子的 5. sell v. （sold/sold）卖；出售 固定搭配：sell sb. sth. =sell sth. to sb. 把某物卖给某人 eg: He sold the old car to me. =He sold me the old car. 他把那辆旧车卖给了我。 常用短语：sell well 卖得好；畅销（不用于被动句） sell out , be sold out 售完 eg: Mo Yan’s works sell well. 莫言的作品很畅销。 Tickets for Jolin’s concert in Shijiazhuang are sold out. Jolin在石家庄演唱会的票卖完了。 Part III 必背短语 1. by han