冀教版八年级下册Lesson 21 Books or Computers?教案配套ppt课件

这是一份冀教版八年级下册Lesson 21 Books or Computers?教案配套ppt课件，文件包含Lesson21pptx、Lesson21mp3等2份课件配套教学资源，其中PPT共35页， 欢迎下载使用。

Key wrds & phrases: appear; mdern;electrnic; sell; pass n; by hand; printing press; keep n. Key sentences: 1. In ancient times, there were n bks, and peple passed n their knwledge by telling stries. 2. It was als pssible fr cmmn peple t read bks. 3. N matter what yu have, a cmputer,a tablet, a laptp, an e-reader r a real bk, keep n reading.T learn the histry f bks.
Wrds & Expressins
pressappear mdern electrnicsell
n. 印刷机；新闻界;出版社v. 出现；呈现；来到adj. 现代的；新式的adj. 电子的v. 卖；出售
pass nby handprinting presskeep n
传递；前进用手； 手工印刷机继续
D yu knw the fur great inventins f ancient China ?
printing press(typagraphy)
paper-making
D yu knw hw peple in ancient times passed n their knwledge withut bks r paper?
By painting frescs(壁画)
By telling stries
Nw peple can get knwledge by reading bks.
Hw many bks have yu read this year？
D yu read e-bks? D yu like them?
Presentatin
The histry f bks is very interesting. In ancient times，there were n bks，and peple passed n their knwledge by telling stries. Later，peple learned hw t write and make paper. With paper，peple began t write dwn their stries. They wrte each wrd by hand. It tk a lng time t write just ne bk！
Then, the printing press appeared and changed the wrld . With mdern technlgy, it was pssible t print bks quickly. It was als pssible fr cmmn peple t read bks .
This is a mdern printing press . It can make thusands f bks a day .
Recently，cmputers and the Internet changed the wrld again. A new kind f bk appeared： the electrnic bk(e-­bk)．E-bks are quickly changing peple’s reading habits . It is easier fr peple t buy and sell bks nline. Infrmatin travels faster and farther.
Which inventin d yu think is mre imprtant —the printing press r the Internet?
Nwadays，peple have many ways t read bks . N matter what yu have，a cmputer，a tablet，a laptp，an e-reader r a real bk，keep n reading！
Did yu knw that China was the first t invent paper？Paper was invented during the Han Dynasty. Paper is ne f the fur great inventins f ancient China. The ther three inventins are the cmpass，printing press and gunpwder.
Culture Tip　
Fur Great Inventins
Let’s D It!　
1. Read the lessn and answer the questins .
1. Hw did peple write bks in ancient times?2. What made it pssible t print bks quickly?3. What kind f bks quickly changed peple’s reading habits?
They wrte each wrd by hand.
Mdern technlgy.
The electrnic bk (e-bk)．
2. Read the lessn and put the sentences in the crrect rder .
The Histry f the Bk□It tk a lng time t write just ne bk . □It made it pssible fr cmmn peple t read bks . □The e-bk appeared . □Peple had n bks, and they shared knwledge by telling stries . □The printing press appeared . □Peple dwnlad bks frm the Internet . □With paper，peple began t write dwn stries .
3. Fill in the blanks . The first letter is given.
Paper　 With paper，peple began t write dwn their stries . Peple wrte each wrd by hand . It tk a lng time t write ne bk . _____________ culdn’t travel far . Printing press　 When the printing press __________，it changed the wrld . The ________ printing press can print bks quickly，and makes it pssible fr the _________ persn t have easy access t bks .
Internet　 Cmputers and the Internet changed the wrld . They made it pssible fr a new kind f bk: the ___________bk . Traditinally bks culd nly be bught and sld at a stre，but tday yu can buy and _______ bks nline .
4. D yu like reading paper bks r electrnic bks (e­bks)？Why？Talk with yur partner and make up a dialgue.
eg：A：D yu like e-bks? B：Yes.I like them very much. A：Why? B：Because it is very cnvenient fr peple t read.
Language pints
1. In ancient times, there were n bks, and peple passed n their knwledge by telling stries.（教材P54）
n adj. 没有，无【句法分析】“n+ 可数名词复数/ 不可数名词”相当于“nt any+ 可数名词复数/ 不可数名词”；“n+ 可数名词单数”相当于“nt a/an+ 可数名词单数”。
【特别提醒】当“n+ 名词”作主语时，谓语动词的单复数要与n 后面的名词保持一致。e.g. N news is gd news. 没消息就是好消息。N wrds are able t express my feelings.我的感情是无法用言语表达的。
pass n 传递；前进pass n sth. t sb.(= pass sth. n t sb.)e.g. Can yu pass n the newspaper t my sister?你能把报纸递给我的姐姐吗？
含pass 的短语pass n 传递 pass the exam 考试及格pass away 去世 pass by 通过，经过pass 把……传递/ 转告给……
拓展：pass 意为“传递”, 后可接双宾语。pass sb. sth.( ＝ pass sth. t sb.) 把某物传递给某人e.g. Pass me the salt, please.= Pass the salt t me, please.请把盐递给我。
如果pass后的直接宾语为代词,只能用pass sth. t sb. 结构。
辨析：pass 与past
2. Later, peple learned hw t write and make paper.（教材P54）
hw t write 怎样书写特殊疑问词+动词不定式结构在此结构中，疑问词可用疑问代词 wh、which、what 等和疑问副词when、where、hw 等。e.g. I want t knw hw t imprve my spken English.我想知道怎样提高我的英语口语。
3.They wrte each wrd by hand.（教材P54）
by hand 意为“用手；靠手做；手工”，表示方式，注意词组中名词前不用冠词。e.g. Accrding t the symbl n the label, this sweater shuld be washed by hand. 根据标签上的符号，这件毛衣应该手洗。
拓展：by hand 还表示“亲手；亲自”。in hand 意为“在手头；在进行中；在控制中”。e.g. He brught up the child by hand. 那孩子是他亲手带大的。He has gt the hrse well in hand. 他把马控制得很好。
4. It tk a lng time t write just ne bk!（教材P54）
take v. 费时；需要……时间e.g. It takes me half an hur t g t schl every day.我每天花半个小时去学校。
辨析：cst, spend, take与pay
5. Then, the printing press appeared and changed the wrld.（教材P54）
appear /ə'pɪə/ v. 出现；呈现；来到反义词disappear vi. 消失appearance n . 出现；公开露面e.g. The sun appeared n the hrizn. 太阳露出了地平线。His sudden appearance surprised me.他的突然出现使我感到惊讶。
6. It is easier fr peple t buy and sell bks nline.（教材P54）
sell /sel/ v. 卖；出售(sld/sld) 常用短语：sell well 卖得好；畅销(不用于被动句) sell ut/be sld ut 售完 sell sb. sth.=sell sth. t sb. 把某物卖给某人e.g. I want t sell the car. 我想卖掉这辆小汽车。He sld the ld car t me fr 500 yuan.=He sld me the ld car fr 500 yuan.他以五百元的价钱把那辆旧的小汽车卖给了我。
7.N matter what yu have, a cmputer, a tablet, a laptp, an e-reader r a real bk, keep n reading!（教材P54）
n matter what 无论什么e.g. Dn’t trust him, n matter what he says. 无论他说什么, 都别相信他。
n matter hw = hwever(不管怎样)n matter wh = whever(无论谁)
N matter where yu g, yu can find friends.无论你去哪里, 你都可以找到朋友。I tld him he culd cme back n matter when he wanted t.我告诉他不管什么时候他想回来都可以。
keep n ding sth. 继续做某事； 坚持做某事keep n ding sth. 表示动作的反复, 强调动作与动作之间有间隔。keep ding sth.表示“一直做某事”, 强调动作的连续性。e.g. He kept n ringing me up, but I didn’t want t keep in tuch with him anymre.他不断地给我打电话, 但我不想再和他保持联系了。He kept talking until the meeting was ver.他一直在说话, 直到会议结束。
一、用所给词的适当形式填空
1. I think the Internet is ______________ (imprtant) than the printing press.2. The nvel __________ (write) by Qing Ya.3. We can find infrmatin ______ (quick) n the Internet.4. The machine can make __________ (thusand) f bks a day.5. If yu ______ (frget) the telephne number, yu culd lk it up in the bk.
mre imprtant
was written