Unit 3 The world of scienceScience moves，but slowly，slowly，creeping on from point to point.—Tennyson科学在发展，不过是慢慢地、慢慢地，一点一点向前爬行。——丁尼生Every great advance in science has issued from a new audacity of imagination.—Emerson科学上的每一重大进步都来自一种新的大胆的设想。——爱默生Men love to wonder，and that is the seed of our science.—Emerson人总是爱异想天开，这就是我们科学的种子。——爱默生Equipped with his five senses，man explores the universe around him and calls the adventure science.—Edwin Powell人生来具有五种感官，他们探索周围的世界并将这种冒险称为科学。——埃德温·鲍威尔Science，Good or Evil？Science has brought many changes to the whole of society.It is hardly too much to say science is the most important factor in the progression of human beings.The great developments in medicine，computer，transportation etc.have lengthened our life expectancy.However ， science also gives us lots of problems ： pollution ， energy crises，the nuclear bomb and more serious computer crimes.Despite all these，we still spare no efforts in the development of science and technology.It is really true that everything has two sides.Huawei 5G technology means more thanquicker communicationSupported by the Huawei technology，Vodafone Espana commercialized the first 5G mobile services in Spain on Saturday.The 5G network can make a huge difference.About half of the population in 15 major Spanish cities including Madrid and Barcelona are involved，which makes the country among the first that used 5G services in Europe.1Vodafone Espana's using the Huawei 5G technology means not only communication 10 times faster in Spain，but also a step closer to the excitements like autonomous driving ， telemedicine and virtual reality in everyday life.An...
