冀教版八年级英语下册Unit 4课件 Lesson 21

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1、冀教版八年级英语下册冀教版八年级英语下册Unit4课件课件最新最新Lesson21 Books or Computers? 同学们，上一课学习的单词、短语和句型你们都掌同学们，上一课学习的单词、短语和句型你们都掌握了吗？现在大家来检验一下，点击下面的音频开始听握了吗？现在大家来检验一下，点击下面的音频开始听写吧！写吧！Have you ever read e-books? What do you think of them?PPT模板： PPT素材： PPT图表： PPT下载： PPT教程： 资料下载： 范文下载： 试卷下载： 教案下载： PPT论坛： PPT课件： 语文课件： 数学课件： 英

2、语课件： 美术课件： 科学课件： 物理课件： 化学课件： 生物课件： 地理课件： 历史课件： THINK ABOUT ITHow many books have you read this year?Do you read ebooks？Do you like them? 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

3、 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 commo

4、n 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 peoples reading habits . It is easier for people to buy and sell books online. Information travels faster and farther. This is a

5、modern printing press . It can make thousands of books a day . Which invention do you think is more important the printing press or the Internet? Nowadays，people have many ways to read books . No matter what you have，a computer，a tablet，a laptop，an e-reader or a real book，keep on reading！Culture Tip

6、 Did you know that China was the first to invent paper？Paper was invented during the Han Dynasty. Paper is one of the four great inventions of ancient China. The other three inventions are the compass，printing press and gunpowder. Later，people learned how to write and make paper . 后来，人们学会了怎样写字和造纸。后来

7、，人们学会了怎样写字和造纸。讲解来自讲解来自点拨点拨知识点知识点1 1 “疑问词动词不定式疑问词动词不定式”在句中作宾语。在句中作宾语。eg：He didnt know where to buy such a book . 他不知道去哪儿买这样一本书。考向考向【重点重点】讲解来自讲解来自点拨点拨典例典例Mr . Jiang advised us which we should choose as our after-school activities . (改为简单句)Mr . Jiang advised us which _as our after-school activities . (

8、南通)【点拨点拨】采用采用分析句子结构法分析句子结构法。“疑问词不定式疑问词不定式”结构结构在句中作宾语。在句中作宾语。to choose 高频高频It takes/took some time to do sth . 做某事花费一些时间。做某事花费一些时间。讲解来自讲解来自点拨点拨知识点知识点2 2eg：It took an hour to write my e-mail . 写我的电子邮件花费了一个小时。考向考向【易错点易错点】 辨析：辨析：cost, spend, take与与 pay这四个词都有这四个词都有“花费花费”的意思，但用法不一样。的意思，但用法不一样。常见用法如下：常见用法如

9、下：讲解来自讲解来自点拨点拨cost物 cost人金钱The ticket cost me ten dollars . 这张票花了我十美元。spend人spend时间/金钱on名词/代词I spent all my pocket money on books . 我所有的零花钱都花在书上了。takeIt takes/took人时间to doIt took me an hour to walk there . 我花了一小时走到那儿。pay人pay金钱 for物He paid $5 for that book . 他花了5美元买那本书。讲解来自讲解来自点拨点拨典例典例It will _ only

10、about 50 minutes to travel to Mount Wuyi by high-speed railway . Wow, how exciting! I cant wait . (福州改编)Atake BspendCcost Dpay【点拨点拨】采用采用题眼法题眼法。考查。考查“花费花费”的表达。的表达。take 表示表示“花费花费”的常用句型是的常用句型是“It takes sb . some time to do sth . ”。A appear/p/ v.出现；呈现出现；呈现讲解来自讲解来自点拨点拨知识点知识点3 3eg: A ship appeared on the

11、horizon. 一艘船出现在地平线上。appearance n.出现；露面出现；露面eg：His sudden appearance surprised me . 他的突然出现使我感到惊讶。考向考向讲解来自讲解来自点拨点拨典例典例 Developments have been good in Hua Xings hometown since 2002 . For example, new roads _(appear)have appeared拓展拓展disappear v.消失 keep on doing sth . 继续做某事继续做某事讲解来自讲解来自点拨点拨知识点知识点4 4eg：He

12、 kept on coughing. 他一个劲儿地咳嗽。考向考向【重点重点】辨析：辨析：keep on doing sth . 与与keep doing sth . keep on doing sth . 着重指动作的反复。Dont give up, and keep on trying . 不要放弃，继续努力。keep doing sth . 强调状态或动作的持续。He kept talking for about an hour . 他持续谈了约一个小时。讲解来自讲解来自点拨点拨典例典例We should keep on _ English every day . (米脂)Ato prac

13、tice to speakBto practice speakingCpracticing to speakDpracticing speakingD1) Read the lesson and answer the questions .1How did people write books in ancient times?2What made it possible to print books quickly?3What kind of books quickly changed peoples reading habits?Lets Do It !Lets Do It !They w

14、rote each word by hand.Modern technology.The electronic book (e-book) 2) Read the lesson and put the sentences in the correct order . The History of the BookIt 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，an

15、d they shared knowledge by telling stories . The printing press appeared . People download books from the Internet . With paper，people began to write down stories . 3Lets Do It !Lets Do It !5614723) Fill in the blanks . The first letter is given . Paper With paper，people began to write down their st

16、ories . People wrote each word by hand . It took a long time to write one book . _ couldnt travel far . Printing press When the printing press _，it changed the world . The _ printing press can print books quickly，and makes it possible for the _ person to have easy access to books . Lets Do It !Lets

17、Do It !InformationappearedmoderncommonInternet Computers and the Internet changed the world . They made it possible for a new kind of book: the _book . Traditionally books could only be bought and sold at a store，but today you can buy and _ books online . electronicsell4) Do you like reading paper b

18、ooks or electronic books(ebooks)？Why？Talk with your partner and make up a dialogue .Lets Do It !Lets Do It !eg：A：Do you like ebooks? B：Yes.I like them very much. A：Why? B：Because it is very easy for people to buy and sell books online.一、根据句意及所给汉语提示写出单词一、根据句意及所给汉语提示写出单词1We watch the books rolling off

19、 the_(印刷机)2The sun _(出现)at 7：00 this morning.3In the afternoon，they went to an exhibition of _(现代的)art.4Some young students like _ (电子的)books better than paper books. (盐城)5He _(卖)his old computer for 500 yuan.presses来自来自点拨点拨appearedmodernelectronicsold三、单项三、单项选择选择11There are enough cups for each vis

20、itor to have _. (宜宾)Aone Bit Cthis Dthat12Its reported that Chinese _ more than 40 minutes a day reading WeChat (微信)Its true. But I think WeChat is taking too much of our time.(襄阳)Aspend Bcost Cpay DtakeA来自来自点拨点拨【点拨点拨】考查代词的用法。句意：有足够的杯子让参观者每考查代词的用法。句意：有足够的杯子让参观者每人拿一个。人拿一个。one泛指同类事物中的一个。泛指同类事物中的一个。A13

21、Whenever you have any trouble, you can call me.Of course, thank you.ANo matter whatBNo matter whoCNo matter whenDNo matter where来自来自点拨点拨C【点拨点拨】句意：句意：无论你什么时候有了困难，你都可以无论你什么时候有了困难，你都可以给我打电话。给我打电话。当然了，谢谢你。此题考查当然了，谢谢你。此题考查no matter whenwhenever，应选，应选C。来自来自点拨点拨14Ill have a ten-day holiday. But I dont know

22、 _(成都)How about Paris?Awhat to do Bwhere to goCwhen to goB【点拨点拨】考查考查“疑问词不定式疑问词不定式”作宾语的用法。句意：作宾语的用法。句意：我将有十天假期。但是我不知道去哪里。我将有十天假期。但是我不知道去哪里。去巴黎怎么样？去巴黎怎么样？根据答语判定疑问词为根据答语判定疑问词为where。15I believe your dream will come true one day if you keep on _ hard from now on.Awork Bto workCworking Dworks来自来自点拨点拨C【点拨点拨】句意：我相信如果你坚持努力工作有一天你的梦句意：我相信如果你坚持努力工作有一天你的梦想会实现的。想会实现的。keep on(坚持坚持)后面跟动词时，要用动词的后面跟动词时，要用动词的-ing形式，故选形式，故选C。本节课我们主要学习了以下重点内容：本节课我们主要学习了以下重点内容：重点单词：重点单词：appear重点短语：重点短语：keep on doing sth.重点句式：重点句式：“疑问词疑问词+动词不定式动词不定式” It takes/ took some time to do sth .