UNIT 4 Lesson 21教学详案—冀教版中学英语八年级下

UNIT 4　The Internet Connects Us
Lesson 21: Books or Computers
设计说明 首先, 让学生结对问答一些关于阅读的问题，如是否喜欢阅读，今年读过多少本书，喜欢读纸质书还是电子书等，从而过渡到本课的学习。接着学习本课的生词，并利用图片进行练习，为学习课文做好充分的准备。再次，通过阅读排序、阅读回答问题、阅读填空、阅读找出重要表达等来层层加深对课文的理解和学习，并要求学生复述课文。最后，总结课堂内容，并进行自我检测。本节课讲练结合，层层递进，使学生高效学习，掌握所学内容。 教学目标 通过本课节的教学，学生达成以下目标： 1.知识目标 掌握词汇：appear, modern, electronic, sell 接触词汇：press 短语：pass on, by hand, printing press, keep on 2.能力目标 能理解短文语言，了解图书的发展历史，能简单地描述各个时期的特点。 3.情感目标 尊重知识，爱护图书，养成热爱阅读的好习惯。 重点难点 1.重点：本节课重点单词; 理解并朗读课文。 2.难点：能用英语谈论图书的发展历史。 教学准备 PPT 课件；课文音频 授课时数 1课时 教学过程 Step 1　Review 1. Homework check. 2. Review what the students learned in the last lesson. Step 2　Lead-in Get the students to ask and answer in pairs like this: A: Do you like reading B: Yes, I do. A: How many books have you read this year B: I have read...books. A: Do you like to read paper books or e-books B: I like... A: Why do you like... B: Because... Step 3　Presentation 1. Get the students to read the new words press, appear, modern, electronic and sell by themselves. Then get the students to repeat the words two or three times after the teacher. Make sure they can pronounce them correctly. press /pres/ n. 印刷机；新闻界 appear / p / n. 出现；呈现；来到 modern / m dn/ adj. 现代的；新式的 electronic / lek tr n k/ n. 电子的 sell /sel/ v. 卖；出售 2. Get the students to pay attention to the following change: sell—sold—sold Step 4　Practice Fill in the blanks according to the pictures. 1. My father is reading an 　　　　 book. 2. The sun 　　　　 in the east each day. 3. Answers: The store 　　　　 many kinds of things. Answers: 1. electronic　2. appears　3. sells Step 5　Reading and ordering Get the students to read the lesson and put the sentences in the correct order. (Let’s Do It! No. 2) 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. Answers: 3—5—6—1—4—7—2 Step 6　Reading and answering Get the students to read the lesson and answer the questions. 1. How did people pass on their knowledge without books in ancient times 2. How did people write books in ancient times 3. What made it possible to print books quickly 4. What kind of books quickly changed people’s reading habits Answers: 1. By telling stories. 2. They wrote each word by hand. It took a long time to write just one book. 3. The printing press. 4. The electronic books (e-books). Step 7　Reading and filling Get the class to read the lesson again and fill in the blanks.（Let’s Do It! No. 3） Paper With paper, people began to write down their stories. People wrote each word by 1.　　　　. It took a 2.　　　　 time to write one book. 3.　　　　couldn’t travel far . Printing press When the printing press 4.　　　　, it changed the world. The 5. 　　　　 printing press can print books 6.　　　　, and makes it possible for the 7.　　　　 person to have easy access to books. Internet 8.　　　　 and the Internet changed the world. They made it possible for a new kind of book: the 9.　　　　 books. Traditionally books could only be bought and sold at a store, but today you can buy and 10.　　　　 books 11. 　　　　. Answers: 1. hand　2. long　3. Information　4. appeared　5. modern 6. quickly　7. common　8. Computers　9. electronic　10. sell　11. online Step 8　Reading , finding and translating Get the class to read the lesson and find the following phrases, and then translate them. 1. pass on　　　　　　　　 2. in ancient times　　　　　　　　 3. begin to do sth. 　　　　　　　　 4. write down　　　　　　　　 5. by hand　　　　　　　　 6. a kind of　　　　　　　　 7. a way to do sth. 　　　　　　　　 8. no matter　　　　　　　　 9. keep doing sth. 　　　　　　　　 1.传递　2.在远古时代　3.开始做某事　4.写下；记下 5.手工　6.一种　7.做某事的方法　8.无论　9.不断做某事 Step 9　Culture Tip Make sure the students understand the following and have a discussion: China was the first to invent paper during the Han Dynasty. It changed the world. Paper is one of the four great inventions of ancient China. What are the other three inventions (The other three inventions are the compass, printing press and gunpowder.) Step 10　Reading and retelling 1. Get the class to read the lesson following the recording. 2. Get them to read by themselves. 3. Get them to retell the lesson. Step 11　Summary Review the following sentences learned in this lesson with the whole class. 谈论发展演变的句子： 1. In ancient times, … 2. Later, … 3. Then…appeared and changed… 4. Recently, …changed…again. 5. Nowadays, … Step12　Language points 1. In ancient times, there were no books, and people passed on their knowledge by telling stories.在远古时代没有书，人们通过讲故事传递知识。　 (1) pass on意为“传送；前进”。 pass on the ball 传球　　pass on knowledge传递知识 (2) by介词，意为“通过”。by doing sth.意为“通过做某事”。 My sister learns English by listening to English songs. 我姐姐通过听英文歌曲学习英语。 2. They wrote each word by hand.他们用手写下每一个字。 by hand是固定短语，意为“用手；手工”，表示方式。 My mother made the cake by hand. 我母亲自己动手做了这个蛋糕。 I like the beautiful sweater by hand. 我喜欢这件手工编织的漂亮毛衣。 3. It took a long time to write just one book!仅写一本书就要花费很长时间！ “It takes (sb.) some time to do sth.”是固定句型，意为“（某人）花费多少时间做某事”。 It usually takes me about half an hour to practise playing the piano. 我每天大约花费半小时练习弹钢琴。 How long did it take you to get to Beijing by train yesterday 你昨天乘火车去北京用了多长时间？ 4. Then, the printing press appeared and changed the world.后来，印刷机出现并改变了世界。 appear不及物动词，意为“出现；呈现；来到”。 A bird suddenly appeared at the window. 一只鸟突然出现在窗口。 【拓展】appear 还可以作连系动词，意为“显得；看起来”，后面可接形容词作表语。 She appeared happy. 她显得很高兴。 5. With modern technology, it was possible to print books quickly.通过现代科技，快速印刷图书成为可能。 “It +be +形容词（+for sb.）+ to do sth.”是固定句型，意为“（对于某人来说）做某事是……的”。it位于句首作形式主语，后面的动词不定式短语是句子真正的主语。 It’s important to protect animals in danger. 保护濒危动物很重要。 It’s not easy for my grandfather to learn to play the piano. 对于我祖父来说，学习弹钢琴并不容易。 6. No matter what you have , a computer, a tablet, a laptop, an e-reader or a real book, keep on reading!无论你有什么，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，坚持读下去！ (1) no matter意为“无论；不管”，常与what, who, when, where等连用。 No matter what you do, be careful! 无论你做什么，要认真！ No matter who comes, don’t open the door. 无论谁来，都不要开门。 (2) keep (on) doing sth.意为“一直做某事；反复做某事”。 Keep (on) trying, and you will make progress. 不断努力，你就会取得进步。 Step 13　Homework 1. Remember the new words and phrases learned in this lesson. 2. Preview Lesson 22. 当堂达标 Ⅰ.用所给单词的适当形式填空 1. Leave the building 　　　　 (quick) when the ground stops shaking. 2. Our country is getting stronger and 　　　　 (strong). 3. I’ve got a new camera, but I don’t know how 　　　　 (use) it. 4. Let me tell you some good ways 　　　　 (learn) English. 5. The teacher keeps 　　　　 (tell) his students the importance of hard work. 6. It will take us two hours 　　　　 (get) there by bus. Ⅱ. 连词成句 1. the, no, there, library, in, were, books, paper ________________________________________________. 2. Internet, the, with, faster, information, travels, faster, and ________________________________________________. 3.takes, it, homework, hour, to, my, me, about, an, do ________________________________________________. 4.by, do, to, know, you, a, hand, book, how, make ________________________________________________ 5. e-books, interesting, it, to, is, read ________________________________________________. 答案: Ⅰ. 1. quickly　2. stronger　3. to use　4. to learn　5. telling　6. to get Ⅱ. 1. There were no paper books in the library 2. With the Internet, information travels faster and faster 3. It takes me about an hour to do my homework 4. Do you know how to make a book by hand 5. It is interesting to read e-books 板书设计 UNIT 4　The Internet Connects Us Lesson 21: Books or Computers appear modern electronic sell press pass on by hand printing press keep on 1. It takes (sb.) some time to do sth. （某人）花费多少时间做某事。 2. It +be +形容词（+for sb.）+ to do sth. （对于某人来说）做某事是……的。 3. keep (on) doing sth. 一直做某事；反复做某事
教学反思
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