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1、Lesson 43: Books or Computers?New wordsprinting press n. 印刷机machine n. 机器modern n. 现代的which pron. 哪一个；指提到的事物Which one did more? 哪一个更重要？哪一个更重要？ which疑问代词哪个，哪一个，哪一些。疑问代词哪个，哪一个，哪一些。如：如：Which pen do you like?你喜欢哪枝钢笔？你喜欢哪枝钢笔？Which came first, the chicken or the egg? 哪个哪个先生产，小鸡还是鸡蛋？先生产，小鸡还是鸡蛋？which的其他用法的其
2、他用法1)关系代词，引导一个定语从句，意思是关系代词，引导一个定语从句，意思是“的（那的（那个），的（那些）个），的（那些）”。如：。如：The trees which stand by the river are large and tall.河边的树又高又大。河边的树又高又大。2)关系代词，那个，那些关系代词，那个，那些He struck the poor dog, which had never done him harm.他打了那条可怜的狗，那条狗从未伤害他打了那条可怜的狗，那条狗从未伤害过他。过他。3)形容词，哪，哪一个形容词，哪，哪一个Which foreign language
3、are you studying? 你在你在学哪种外语？学哪种外语？What is the book made of?What is the paper made from?What made this book? papertreesA printing pressWhich one did more to change the world?A computerA printing press made it, (People could make many books quickly)The internet, (It lets people find and use informatio
4、n very quickly)Before the printing press, somebody wrote by hand every day with a pen, (slow!)Books or Net?slowquickly more quicklyWhat is a printing press?vThe printing press is a machine that can make lots of books in a short time.How were books made before the printing press?before the printing p
5、ress, books were written by hands. Sometimes, people worked for years to make books by hands.They are writing by handBefore the printing press, somebody write every book by hand with a pen. 在印刷机之前，每本书是人用钢笔手工写的。by hand手工That old book was written by hand.那本旧书是人工抄写的。I like to eat dumplings made by hand
6、.我喜欢吃手工包的水饺。【拓展】by hand还有“用体力”“由专人”等意思。The letter was delivered by hand.此信由专人递送。How did books change information?lThe printing press could make many books quickly. Because there were more books, more people could read books. Information began to travel much faster and much farther. Books also “kept”
7、 information for you. If you forgot something, you could look it up.The internet helps me do my homework. I can find lots of information in just a few minutes.vWhich invention do you thinkis more important- the printing press or the internet?用所给词的适当形式填空1.Who is_, monkey or elephant? (strong)2.Whose
8、sweater is_, Anns or Marys? (expensive)3.Who writes_, Li Ming or LI Ping? (well)4.Who listens to the teacher_, Jenny or Danny? (carefully)stronger more expensivebetter more carefullyThe printing press is a machine that can make lots of books in a short time. 印刷机是一台在很短的时间内能印刷许多书的机器。1)machine机器。如：wash
9、ing machine洗衣机 printing machine(=printing press)印刷机2) in a short time在很短的的时间内，in在以后 “in+时间段”通常用于将来时。如：My father will be back from Beijing in a week.我爸爸一周之后就从北京回来。“after+时间”也可以用于将来时，但after之后加时间点。例如： Hell come back after seven oclock.他将在7点钟回来。How did books change information? 书是怎样改变世的？ change v.& n.1)
10、 v.改变，变革，改造。交换change the world 改变世界change ones mind改变主意Change planes at Zhengzhou for Beijing.在郑州换飞机去北京。Can you change me a dollar? 你能兑换给我1美元吗？2) vt.变，改变，变化。换衣；换车The weather changes very often in England.在英国天气常常变化。The baby needs changing. 婴儿需要换衣服了。3)n.改变，变化，更换；调换；替换物。零钱；找头，（不可数）Many changes have taken place since 1978.自1978年以来发生了许多变化。Lets go to the restaurant for a change.咱们去饭店换换口味吧。Here is your change.这是你的零钱。4) changeinto把变成Heat changes water into steam. 加热使水变成蒸汽。Project: WHICH ONE DID MOER?
