江苏省盐城市时杨中学高中英语 Unit1 Reading导学案1 外研版选修7(1).doc

江苏省盐城市时杨中学2014高中英语 unit1 reading导学案1 外研版选修7【学习目标】1.students will be able to read an article from a book about the evolution of video and sound devices;2.students will be able to know the reading strategyunderstanding headings;【问题情境】i. read the text fast and then answer the following questions.1.who developed the system used for most early tv broadcasts?_2.who made the first recording of a human voice?_3.what were developed by the late 1960s?_【我的疑问】【自主探究】read the sentences below and decide whether they are true(t) or false(f) according to the article. 1. color tv became popular within just a few years after it was invented. ( )2. people without satellite dishes do not benefit at all from satellite tv broadcasts. ( )3. some of the first tape recorders used plastic tape to record on. ( )4. records and cassettes do not offer as good a sound quality as cds. ( )5. new technology will soon make many of the things talked about in the article out of date. ( )【课堂检测】根据课文内容填空：(每空限填一词)early history of tv in 1925, the first public tv broadcasts were made in the usa. in 1928, the first long-distance tv broadcasts was made between the uk and the usa. regular public tv broadcasting started on 11 may 1928 in new york and on 20 august 1929 in london. the first color tv was made in 1928, but it took a(n) (1)_ for the first color tv program to be broadcast. in 1951, regular color tv broadcasts began in the usa.the modern age: satellite tv in 1962, satellites were put to (2) _ in tv broadcasts. thanks to satellites, people can see live shows, no matter where they (3) _, in big cities or small villages.early history of sound recorders. in 1877, thomas edison recorded a human voice on the record player. in 1887, emile berliner invented a record player using discs to (4)_round tubes to record on.sound and video recorders in 1928, the first tape recorders (5)_ in germany. early tape recorders employed steel or paper tape to record on. in the early 1950s, plastic tape was (6)_ used in tape recorders. in the late 1960s, portable cassette players were developed and video recorders were used by tv stations. by the late 1970s, small and cheap video recorders were made which were suitable for home use.sound and video go digital in 1982, people could have (7) _ to cds. cds are used for storing and playing music because their sound quality has (8)_ a lot. the vcd or dvd were invented in 1993 and 1995 separately sound and video can now be (9) _ on a computer, on the internet or using some form of portable storage.the futuretechnology is developing very fast, making it (10)_ for most people to keep pace with.【巩固练习】阅读文章，选择正确答案james langston hughes finally arrived in new york on september 4, 1921 to attend colombia university. langston felt frustrated at colombia due to the discrimination of his white classmates. his grades began to suffer and finally he left and looked for a job.jobs were still hard to come by for most blacks. he longed to work on a ship that would sail abroad. after much persistence, he headed to africa on a freighter(货船). hughes was disturbed by the african tribes lack of political and economical freedom. the africans considered him white because of his brown skin and stranded dark hair. it was here that he met a mulatto(白黑混血) child who was ignored by the africans and the whites. this was a source of inspiration for his play, “mulatto”.hughes found work on another freighter and ended up in pairs. while there he worked at a night club that featured southern cooking and jazz performers. while moving on to italy, hughes was robbed and left stranded (helpless) wanting to return to the united states. he tried to get a job on a ship heading for the usa, but was told they only hired the white. in this depressed state of mind he wrote, “i, too, sing america.”he returned to america and found the harlem renaissance was spreading across