牛津高中英语模块7m7u1 reading.pptVIP

M7 U1 Reading The evolution of video and sound devices;Language points ;Important expressions ; ;benefit from satellite TV L24 broadcast the signals ? L24-25 made the first recording of a human voice L27 used round tubes to record on L28-29 used discs as alternative to tubes L30 be wound up by hand L31 Times surely have changed! L32 employed steel tape to record on L35 by the late 1960s L38-39;Sound and video go digital. L42 The first CDs were made available. L43 make … things of the past L49-50 keep pace with L51 foresee what the future will bring L51-52 adaptations were made L9 P5 Relay conversation and music L9 P5 had access to L13(倒数L3) P5 The primary means of getting news and entertainment L14(倒数L2) P5;Many different people contributed to the development of TV. (L6) 很多不同的人对电视的发展作出了贡献。 contribute: verb [vi or vt] 1) 捐助，贡献 必修6 Come to the meeting if you feel you have something to contribute. Her family have contributed ￡50, 000 to the fund. 2) 投稿 She contributes to several magazines. contribute to sth. 有助于，成为……的原因 Smoking certainly contributed to his early death.;注意：以下短语中 “to” 是介词， 后接名词或动名词： look forward to; take to; refer to; get/be used to; be/get/become accustomed to; lead to; contribute to； devote to; pay attention to; get down to; the key to…;2. It took more than two decades, though, until 1951, for colour broadcasts to begin in the USA. (L13-14) 但是彩色电视节目一直到1951年才得以在美国开播,这其间一共经历了二十多年的时间。 though conj. 1) 虽然 She hasn’t phoned, even though she said she would. 2) 但是 They’re coming next week, though I don’t know　 which day. adv. despite this: 可是,不过 We were at school together. I havent seen her for years though.;as if/though 似乎,仿佛 She looked as if shed had some bad news. I felt as though Id been lying in the sun for hours. They stared at me as if I was crazy. even though 尽管 Even though he left school at 16, he still man