Lesson 21 Books or Computers 教学设计

Lesson 21 Books or Computers
教学目标：
1.理解运用表示书籍发展的词或短语:appear,modern,electronic,sell,paper,
print,computer,read,information,e-book,pass on,by hand,keep on,no matter
2.掌握有关介绍书籍发展的句子:
They wrote each word by hand.
…it was possible to print books quickly.
A new kind of book appeared:the electronic book.
3.进一步懂的书籍发展的句式。
重点难点：
1.懂的一些介绍书籍发展的单词:paper,print,computer,read,information,e-book
2.运用所学知识介绍自己掌握到的书籍的情况。
3.懂的重点句式:
With paper,people began to write down their stories.
They wrote each word by hand.
It was also possible for common people to read books.
Information travels faster and farther.
教学思路：
本课时的教学内容是冀教版八年级下册英语第四单元的第三课时,主要涉及书籍的发展史,由纸质书到电子书的发展。在授课之前先让学生想一想学生自己用的书籍,自己读书的情况,同时也可以掌握一下同学如何读书的。课上可以通过让学生小组合作的形式进行相互交流;然后教师通过幻灯片、图片向学生展示不同的书籍和不同的读书情况,并让学生用英语简单介绍出自己读书的场景。
教学准备：
设计教学PPT,录音机,多媒体,图片和单词卡片。
教学过程：
StepⅠ.Lead in
Leading in 【情景1】
Show some pictures about reading books.Let the students answer the following questions:
T:Hello,boys and girls.What books do you like?
S1:Picture books.
S2:Story books.
T:Why do you like them?
S3:Because they are interesting.
T:How many books do you read every week?
S4:One or two books.
T:What kind of books do you read?Have you read e-books?
Discuss the questions in groups.Ask the students to talk for three minutes.Then let them present their talk in class.
[设计意图]　利用学生学过的内容,从询问喜爱什么书开始,轻松进入语境,进而介绍生词,图片的使用使学习更加形象直观,自然地进入谈论书籍的新话题。
Leading in 【情景2】
Greet the class.
T:Hello! Boys and girls!
Ss:Hello! Mr./Ms.XX.
Ask the students to introduce their favourite books in class.
S1:I like story books in paper.
S2:I like picture books.
S3:I like e-books.
Show the new word “e-book” and show the picture of all kinds of books to the students.
T:What do you think of e-books?
S4:They’re popular.
S5:I still like paper books.
S6:They’re easy and convenient to keep for a long time!
…
[设计意图]　运用学生所学的知识,从谈论熟悉的入手进入新内容的学习,运用实物或图片帮助学生学习生词,直观、感性、形象。
StepⅡ.Presentation
If some students feel the passage is too long,the teacher can divide it into four parts.Then ask them to read them in groups.After a while,ask them to read them loudly.
(1)Later,people learned how to write and make paper.
(2)They wrote each word by hand.
(3)It took a long time to write just one book!
(4)Information travels faster and farther.
Please pay attention to the long word:information.
[设计意图]　小组合作朗读课文。展示书的发展史的图片,使同学们感受书籍发展的历程,激发朗读的欲望。在互帮互助的小组合作中训练课文重点单词、短语、句式表达。
StepⅢ.Listening
T:Listen to the tape with your book closed and know about the main idea of the lesson.At the same time,fill in the blanks.
1.If we just 　　　　a book,it may take a long time.?
2.With modern 　　　　,it was possible to print books quickly.?
3.E-books can change people’s reading 　　　　.?
【Keys】　1.write　2.technology　3.habits
[设计意图]　加深同学们对整体的懂的,学生带着问题有目的地倾听,容易把握内容回答问题。
StepⅣ.Post-listening Activities
After listening to the passage,get the class to read it aloud.
T:Now let’s listen to the tape and read the passage.
Ss read aloud.Focus on the stressed words,pronunciation and intonation.
[设计意图]　学生训练听力之后,朗读巩固,训练学生的语音语调,培养阅读能力,理解能力。
StepⅤ.Reading
1.Read the text and answer the following questions.
(1)How did people pass on their knowledge in ancient times?
(2)What is the advantages of using the printing press?
(3)How many ways can you tell to read books?
2.Then ask some volunteers to read the passage.
3.Read the text again and fill in the blanks.
(1)They wrote each word　　　　.?
(2)　　　　book appeared: the electronic book. ?
(3)With paper, people began to 　　　　their stories.?
(4)It was also 　　　　for common people to read books.?
【Keys】　1.(1)By telling stories. 　(2)It was possible to print books quickly. (3)Five ways.　3.(1)by hand　(2)A new kind of　(3)write down (4)possible
☆教材解读☆
1.Later,people learned how to write and make paper.?
how to do sth 是由“特殊疑问词+ 动词不定式”构成的短语,how引导的不定式短语作前面learned 的宾语。除了how之外,其他的特殊疑问词(what,who,which,when,where等)也都可以与动词不定式连用,通常在句中作宾语、主语或者表语等。
(1)作宾语。
She doesn’t make sure where to take a vacation.她不确定去哪儿度假。
(2)作主语。
When to go to school is up to you.
什么时候去上学,你说了算。
(3)作表语。
The biggest problem is how to make money.最大的问题是怎么去赚钱。
2.They wrote each word by hand.?
句中by hand意思是“用手,手工”。by在这作介词,表示“方式,手段”,意思是“用……的方式”。
He wants to make some friends by letter.
他想通过写信交几个朋友。
3.It took a long time to write just one book!?
take 的意思是“花费”,一般指花费时间、金钱或者精力等。常用结构“It takes sb+时间/精力+to do sth.”,意思是“做某事花费了某人的时间或精力”。
It took him ten minutes to get to school.
他花了十分钟到达学校。
【辨析】　take,pay,spend,cost
(1)take构成“It takes sb +时间/精力+ to do sth.”结构,意思是“做某事花费了某人的时间或精力”。
It took her two hours to finish the homework.她花了两个小时写完作业。
(2)pay构成“Sb +pay+金钱 +for sth.”结构,意思是“某人花了多少金钱去买某物”。
I paid 10 yuan for this pen.
我买这支钢笔花了十元钱。
(3)spend构成“Sb+spend+时间/金钱+on sth/in doing sth.”结构,意思是“某人花时间或金钱做某事或者某人在某物之上花费了多少时间或金钱”。
　　I spend one hour doing sports every day.
我每天花一小时做运动。
I spent some money on books.
我花了一些钱在书上。
(4)cost构成“Sth + cost+ sb + 金钱.”结构,意思是“某物花费了某人多少金钱”。
The new bike cost me much money.
这辆新自行车花了我许多钱。
4.Information travels faster and farther.?
◆travel作不及物动词,意思是 “传播”,用来表示思想、信息、消息等扩散到各处。
Bad news usually travels faster than good news.坏消息一般传播得比好消息快。
【拓展】　(1)travel作“旅行” 讲,为不及物动词。
He likes travelling by plane.
他喜欢乘飞机旅行。
(2)travel作“以……进行”讲,为不及物动词,常接at,后面接具体速度。
The plane can travel at 900kmph.
飞机可以以每小时900公里的速度飞行。
(3)travel作“走过……”讲,为及物动词,后面直接接距离。
He has travelled 2000 miles by himself.
他独自行走了2000英里。
(4)travel 当名词时表示“旅行”。
Rail travel is more interesting and relaxing.乘火车旅行比较有趣和放松。
【辨析】　travel,journey,trip
(1)travel通常指从一个地方到另一个地方的旅行,是不可数名词。
Air travel is very expensive for us.
乘飞机旅行对我们而言太贵了。
(2)journey通常表示长途旅行或者经常性的旅行。
It’s a long journey to cross the whole country.跨越整个国家是一个很长的旅程。
(3)trip一般指短途往返的旅行,或者指的是不常有的旅行,强调目的地或者原因。
They want to take a trip to the beach.
他们想去海边旅行。
◆句中faster 作副词,是fast的比较级,意思是“更快地”。
Lucy runs faster than Lily.
露西跑得比莉莉快。
5.No matter what you have,a computer,a tablet,a laptop,an e-reader or a real book,keep on reading!?
◆no matter what意思是“无论什么,任何事情”,和whatever意思相同。
　　No matter what he does,his mother always agrees with him.无论他做什么,他妈妈都同意。
【拓展】　(1)whatever还可以修饰名词,意思是“无论什么”。
She can do whatever things to help her students.她可以做能帮到学生的任何事情。
(2)和whatever 相似的单词有:however 无论如何; whoever无论是谁;whenever无论何时;wherever 无论何地 等,它们也都可以和“no matter+相应的疑问词”这一结构互换。
Wherever you go,you will have a good time.无论你去哪里,都能够过得愉悦。
◆keep 作动词,意思是“保持,持续”,keep on doing sth表示“保持一直做某事”。
Keep on practicing until you can learn it.
保持练习,直到你理解它。
【拓展】　(1)keep sth 保存某物。
How long can I keep the book?
我可以保留这本书多久?
(2)“keep +形容词”保持……状态。
Doing sports can help you keep healthy.
做运动可以帮助你保持健康。
(3)“keep+sb/sth+形容词”使……保持……状态。
We should keep the food cool.
我们应该让食物保持在凉爽的状态。
(4)keep sb/sth away from sth 使……远离……。
Keep the baby away from hot water.
让孩子远离热水。
[设计意图]　学生通过阅读课文,掌握重点内容,并且通过回答问题来巩固对课文的理解和懂的;朗读课文并填空,掌握课文重点句式。
StepⅥ.Complete Let’s Do It!
Ask the students to read the passage again and again so that they can finish No.1 and No.2.And fill in the blanks in No.3.
[设计意图]　Let’s Do It! 部分中的No.1和No.2重点是阅读教学,主要针对课文的内容,通过练习题又一次巩固了课文内容, No.3考查本课学到的重点单词的用法。
StepⅦ.Task
GROUP WORK:No.4
Ask students to talk about books.“What kind of books do you like? Do you like reading paper books or e-books?”
[设计意图]　小组合作探究。以“喜欢什么书籍”为话题,提供了一个语境完整、内容丰富的话题,自然呈现本单元的核心句型,为学生进一步输出语言提供了口语示范。
StepⅧ.Exercises
T:Now,look at the sentences with some missing words.Please use proper words to fill them.
1.Some new phones　　　　(appear) last week.?
2.Can you tell her how　　　　(do) it.?
3.The children are　　　　(sell)toys for fun in the park.?
4.The fish always keeps on　　　　(swim).?
5.There are many benefits of　　　　(read) books.?
【Keys】　1.appeared　2.to do　3.selling　4.swimming　5.reading
[设计意图]　以学评教、强化落实。当堂检测主要是由本节内容组成的形成性评价,利用已知的信息,让学生补充,让他们得到充分的训练。
StepⅨ.Homework
1.Copy the new words twice.
2.Read the passage with your group members.
[设计意图]　口头练习、写作练习和单词记忆相结合,复习、归纳,注重语言知识的操练与积累。
Lesson 21　Books or Computers?
appear,modern,electronic,sell,paper,print,computer,read,information,e-book
pass on,by hand,keep on,no matter
They wrote each word by hand.
…it was possible to print books quickly.
A new kind of book appeared:the electronic book.
With paper,people began to write down their stories.
It was also possible for common people to read books.
Information travels faster and farther.
教材习题解答
【Lesson 21】
1　1.By hand.　2.The printing press.　3.E-books.
2　3　5　6　1　4　7　2
3　Information,appeared,modern,common,electronic,sell