北师大版高中英语必修2unit4（全套课件）PPT.ppt

Unit 4　Cyberspace教材背景链接;;If the letter really is disappearing fast，now might be a good time to chew over what we are about to lose. The Effect of Email The coming of email has played much the biggest role in the fate(命运) of the letter.“In the Victorian era，letter-writing was what people did in their spare time，and then they read the letters to each other.In a way，it was the news，as much as anything，”the novelist A．S. Byatt says.;There is only one problem：what her trust on computer-based communication will mean for her works.“I’ve been talking to the people in the British Library，who are interested in my archive(档案文件)，but it’s not going to be easy for them，because technology keeps changing，”she says.“Very often，they can’t read the computer material they’ve collected.At last they’d like to take away a copy of my hard disk.They still love ink on paper.” The Problems Biographers Will Meet;And so we arrive at one of the more worrying results of the change from paper to computers：if emails now note the progress of important lives down，how will future biographers manage? “From that point of view，it’s a completely disappointing thing，”says the novelist and biographer D．J.Taylor，whose Life of William Makepeace Thackeray used a lot of handwritten letters.“Thackeray always thought that he wasn’t much of a letter-writer，but he wrote 15 every morning.In some ways，it’s the only way that you can follow his life.”;Task：True or False 1．16 to 19-year-old boys never write letters.(　　) 2．Novelist A．S.Byatt has used the computer to write her works.(　　) 3．Thackeray has to write letters because he doesn’t have a computer.(　　) Keys：1.F　2.T　3.F;Section Ⅰ　Warm-up Lesson 1;;?Step One：Ask and Discussion Compared to 20 years ago how do you think technology will change our lives? __________________________________________________________________________________ __________________________________________________________________________________;答案：We have more cars and computers which/ that ar