外研版九年级上册ppt课件.ppt

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1、资金是运动的价值，资金的价值是随时间变化而变化的，是时间的函数，随时间的推移而增值，其增值的这部分资金就是原有资金的时间价值外研版九年外研版九年级上册上册M9U3Do you use emails to communicate with others?Answer the following questions.Do you like shopping online?Do you use the Internet to help you do homework?What will our life be like without the Internet?1.They will be put

2、up on the school website.2.Will computers be used more than books in the future?3.Will books be replaced by the Internet?Look at the following sentences.What are they in common?被被 动动 语语 态态一般现在一般现在一般过去一般过去一般将来一般将来肯定肯定主语主语+am/is/are+done.主语主语+was/were+done.主语主语+will/be(am/is/are)going to+be+done.否定否定主

3、语主语+am/is/are+not+done.主语主语+was/were+not+done.主语主语+will not/be(am/is/are)not going to+be+done.一般现在一般现在一般过去一般过去一般将来一般将来一一般般疑疑问问句句Am/Is/Are+主语主语+done?Was/Were+主语主语+done?Will+主语主语+be+done/Be(am/is/are)+主语主语+going to+be+done?一般现在一般现在一般过去一般过去 一般将来一般将来特特殊殊疑疑问问句句疑问词疑问词+am/is/are+主语主语+done?疑问词疑问词+was/were+主

4、主语语+done?疑问词疑问词+will+主语主语+be+done/疑问词疑问词+be(am/is/are)+主语主语+going to+be+done?1._ books _(replace)by computers in the future?2.My bike is broken.It _(fix)tomorrow.3.Dad,can I use the Internet this evening?Yes,but the computer is not on yet.The electricity _(not connect)until nine oclock.Will be repla

5、cedwill be fixed wont be connected4._ the problem _(talk about)at the meeting tomorrow?5.Who _(invite)to give a report about great inventions next Friday?6.When _ the work _ (finish)?In two days.Will be talked aboutwill be invitedwillbe finishedA new classroom will be built.build,buy,changeA new flo

6、or will be built.New furniture(desk/chairs)will be bought.A new blackboard will be bought.A new interactive whiteboard will be bought.The windows and the door will be changed.The teachers desk will be painted.The lights will be changed.The color of the walls will be changed.The walls will be fixed.1

7、875 America Alexander Graham Bell A:When was the telephone invented?B:It was invented in 1875.A:What kind of telephone do you think will be made in the future?B:1903 America Wright Brothers 1924 Britain John Logie Baird1Before the _ of printing,few people could read.2There were more books to sell,so

8、 the _ in books grew.3Because more people could read,ideas _ quickly.4What _ will printing take in the future?introductiontradedirection,introduction,spread,tradespreaddirectiona)In a school library.b)In the British Library.c)In the British Museum.1Why were so few books produced in ancient times?2 B

9、ecause they were written by hand.2 Why were many old books copied onto a computer?They are too valuable to be picked up and held in the hand.3 How has the computer helped people read old books in the British Library?Old books were copied onto a computer a few years ago for people to be able to read

10、them without touching them.a)The history of the Internetb)The World Wide Webc)The Internet and the Webd)The future of the Internet1.When was the Internet invented by the US government?In the 1960s.2.What could people only send at first?They could only send very simple texts.3.Who invented the World

11、Wide Web in 1991?A British scientist named Tim Berners-Lee.4.Can people use e-commerce and online shopping to buy and sell things?Yes,they can.In the 1960sThe Internet was invented for the army to use.In the 1970sScientists and businesspeople wanted to use the Internet to send and receive messages.I

12、n 1991The World Wide Web was invented.In the 1990sMore and more people startedto use the Internet to send various types of files.TodayThe Web has hundreds of millions of users.It has changed the way people live,work and play.E-books Just as email has changed the way we write to each other,e-books ar

13、e changing the way we read.We can easily download new e-books from the Internet.It is much easier and quicker to search for passages now,and we can also write notes in an e-book.What is more,they save a lot of paper.But e-book readers are still more expensive than paper books,so not all people can a

14、fford them.However,with the rapid development of electronic technology,reading e-books will become cheaper and cheaper.A lot of people think there will be more e-books than paper books in the near future.Think of an invention that has changed your life.Make notes about the invention:1 What is it?2 W

15、hy is it useful?Research how the invention has been developed and make notes about what you find out.Tell your group about the invention.Ask them for their ideas.Make notes about your discussions.1.Nobody _(allow)to enter the cinema without a ticket.2.A talk about music _(give)tomorrow afternoon.3.T

16、hat problem _(solve)by Mr White yesterday.根据句意及括号内所给动词的提示用根据句意及括号内所给动词的提示用适当的时态和语态填空。适当的时态和语态填空。is allowedwill be givenwas solved4.The subway in my city _(complete)next month.5.The room _(tidy)up by my mother every day.6.Some questions _(ask)at the meeting yesterday morning.7.Miss Green _(visit)by h

17、er students next week.will be completedis tidiedwere askedwill be visited8.Do you know who _(bring)these flowers to school just now?9.The dialogue _(practise)by the students in class tomorrow.10.Our company _(provide)some books for the school last month.broughtwill be practisedprovided你的朋友你的朋友Jim迷恋上网，经常逃学，成迷恋上网，经常逃学，成绩下降。请给他写一封信来帮助他。绩下降。请给他写一封信来帮助他。60-80词左右。词左右。资金是运动的价值，资金的价值是随时间变化而变化的，是时间的函数，随时间的推移而增值，其增值的这部分资金就是原有资金的时间价值谢谢！