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1、2022年高中英语（人教大纲）第二册下：Unit11 Scientific achievements(第一课时).Brief Statements Based on the UnitScience and technology are part of productive forces.The modern society has proved it.As we all see now,scientific achievements have changed the whole world and made people break away from ignorance and backwa
2、rdness.The society has made great progress.This unit is arranged around the central topicscientific achievement.In Warming up,there are several pictures asking students to talk about the most significant scientific achievements.The Speaking part introduces four different scientists who want to get m
3、oney to plete their projects which are very helpful to human beings.The reading materialZhongguancun,which is called Chinas Silicon Valley,is the new centre for Chinese science and technology.By studying this unit,students also know that Chinese history is filled with great achievements in science a
4、nd technology.In particular,since the year 1995 the Chinese government put forward a plan for “rejuvenating the nation by relying on science and education” and this has helped Chinese scientists make many breakthroughs.This unit presents four such results in Integrating Skills.As to GrammarWord Form
5、ation,teacher should let students master some knowledge of forming a word,and know how to use stems and affixes to form a pound.Teaching Goals1.Talk about science and scientific achievement.2.Practise expressing intentions and wishes.3.Learn about Word Formation(1).4.Write a persuasion essay.Backgro
6、und Information1.The Influence of the puterAbout ten years ago,the puter was a strange machine.Not many people understood it.Not many people said yes to it.Today,much of that is changing.The first puter system was introduced for use in business in the mid-1950s.Since then,the number of puter systems
7、 used in business,governments,and institutions(公共机构) has grown rapidly.In 1975,about 250 000 systems were in use in the United States.This figure is growing by tens of thousands every year.The electronic puter is an important factor in our lives.Each year we use puters more and more to help us to co
8、llect data and to provide us with information.At one time,people thought puters were only useful for banks,department stores,and governments.But today the rapidly increasing number of puters are used for many other purposes.Have you ever stopped to think how you are affected by puter?The clothes you
9、 wear were probably made with the help of a puter.The newspaper you read could have been edited and typed by a puter.Even radio programs are often prepared by puters.puters today are playing important roles in education,transportation and medicine.They are used to predict the weather,to examine the
10、ocean,and to develop defence systems.They are being used by businesses,governments,and institutions.There is no reason to think that their use will decrease(减少)puters will bee a greater part of our lives.The influence of the puter is great.The list of its uses could go on and on.Although the first p
11、uter was only introduced in the mid-1950s,puters now affect millions of people in countless ways every day.2.The Information RevolutionThe information revolution:How does it concern you?puters Are Changing Your World.Ten years ago,in 1986,desktop puters were just beginning to make their entrance int
12、o the world of business.Now,they are invading(涌入) the family home at a rapid pace.More importantly,however,they are also changing the way we look at the world.The information superhighway is now open to increasing numbers of ordinary people.The superhighway is providing ordinary people with immediat
13、e access to a huge amount of information.It is also giving them almost unlimited opportunities of munication with people around the world.Ordinary people now have power to gain knowledge and to link up with so many fellow citizen of the world.This has never happened before in the history of the huma
14、n race.Information SuperhighwayThe global puter network is called the Internet.Large puters(called servers) from all over the world have been link up with satellites.From their home,ordinary people use their puters and their telephone lines to link up to these server puters.They can then access pute
15、rs overseas and find information on almost any topic they can think of.They can read foreign newspapers,find out about the latest trends in music,films,books and fashion through library catalogues(目录),and find research data on almost any subject.Other Activities on the InternetIf the Internet users
16、have a credit card（信用卡）,they can shop for goods and services from the other side of the world.They can also join thousands of newsgroups (called “bulletin boards”,that is electronic message centres kept in puters).In these newsgroups,the Internet users can take part in discussions on many different topics with puters users around the world.It is also possible to send letters electronically to people overseas through this puter network.This fun
