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1、M7U1 Reading The evolution of video and sound devices Learning aims: 1. Students will be able to list the electrical appliances and electronic devices they have at home and talk about how modern technology affects their lives.2. Students will be able to read an article from a book about the evolutio
2、n of video and sound devices and students will be able to know the reading strategyunderstanding headings.Step 1: Lead- in电脑CD播放器空调数码相机电视机洗衣机电子词典洗碗机微波炉电冰箱手机吸尘器1) Match (连线) 1 Microwave oven 2 Refrigerator 3 TV set 4 Air conditioner 5 Washing machine 6 Vacuum cleaner 7 Dishwasher 8 Computer 9 CD play
3、er 10 Mobile phone 11 Digital camera 12 Electronic dictionary2) DiscussionHow have they changed our life? (Discuss and answer)“Personally, I think the invention that has greatly changed our life is _ because _.”3)Readingstrategy:understandheadings(P3)appear_Headingsshow_give_Step 2: Reading Comprehe
4、nsionA Fast-reading根据Reading的课文内容选出最佳选项。1) The passage is organized_.A by paragraphs B in place orderC by concepts D by sub-topics2) When and where was the first long-distance TV broadcast made?A In 1925 in the USA B In 1926 in the UKC In 1928 in the UK Din 1928 in both the USA and the UK3) Who was
5、the inventor of the first color TV?A Thomas Edison in the USAB Philo Farnsworth in the USAC John Logie Baird in the UKD Emile Berliner in the Germany4) Which of the following is not true about satellite?A They are used to broadcast TVB They allow TV to be broadcast live over distanceC They make peop
6、le living far away gain access to TVD They broadcast the signals getting from satellite receivers.5) What is the main topic of the passage? A. The early history of TV. B. The development of the record player. C. The development of vedio and sound devices. D. The wide use of satellites TV. B Detailed
7、 Reading根据Reading的课文内容填空。（每空不超过3个词）TimeEventsTVIn 1925The first public TV broadcasts were made in the USA.In 1928The first 1. _ TV broadcast was made between the UK and the USA.Regular public broadcasting was begun in New York.The first color TV was 2. _ by John Logie Baird.In 1929Regular public bro
8、adcasting was begun in London.In 1938The first color TV program was broadcast.In 1951Regular color TV broadcasts were begun in the USA.In 19623. _ were used to broadcast TV.In 1967Regular color TV broadcasts were begun in the UK.Sound devicesIn 1877The first record player using tubes was invented by
9、 Thomas Edison.In 1887Emile Berliner invented a record player using 4. _.In 1928The first tape recorders used to copy 5. _ were made in Germany.By the early 1950sMost tape recorders began using 6. _ tape.By the late 1960sPortable 7. _ players were developed.By the late 1970s8. _ recorders were inven
10、ted.In 1982The first CDs were made available.In 1993The VCD was born.In 1995The DVD was invented.The futureRecords, cassette recorders, CDs, DVDs and even TVs will become the past of the history.C. Summary根据课文填空(语法填空)The first public TV(1)_( broadcast) were made in the USA in 1925. Later, in 1928, t
11、he first long-distance TV broadcast was made between the UK (2)_ the USA. Many different people contributed (3)_ the development of TV. John Logie Baird constructed the first color TV in 1928, but it was not until 1938 (4)_ the first color TV program was broadcast. However, within (5)_short time nea
12、rly all TV broadcasts were made in color. Satellites were used to broadcast TV beginning in 1962. (6)_ make TV accessible to people who live far away from cities, and satellites dishes can often be seen (7)_(distribution) throughout the countryside and remote areas. Thomas Edison made the first reco
13、rding of a human voice on his invention, the record player in 1877.The first record players had to be wound up by hand and only played records that were two minutes long. By the late 1970s, video recorders small and cheap enough for home use (8)_(introduce). In 1982, the first CDS were made availabl
14、e. (9)_the development of digital technology, sound and video can now be stored on a PC, on the Internet, or using some form of portable storage. Technology is now changing (10)_(fast) than most people can keep pace with. Who can foresee what the future will bring?Step 3 Homework.1 Review the contents learnt in the text.2 Finish the exercises D and E on textbook.3学海导航P7 课时小结
